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-rw-r--r--packages/linux/linux-omap/0007-DSS-DSI-support-for-OMAP2-3-DSS.patch3047
1 files changed, 0 insertions, 3047 deletions
diff --git a/packages/linux/linux-omap/0007-DSS-DSI-support-for-OMAP2-3-DSS.patch b/packages/linux/linux-omap/0007-DSS-DSI-support-for-OMAP2-3-DSS.patch
deleted file mode 100644
index e1c92b289a..0000000000
--- a/packages/linux/linux-omap/0007-DSS-DSI-support-for-OMAP2-3-DSS.patch
+++ /dev/null
@@ -1,3047 +0,0 @@
-From 421c7dc28a0b9b2ee0c8514045a8ee1af7b002de Mon Sep 17 00:00:00 2001
-From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
-Date: Tue, 4 Nov 2008 15:18:25 +0200
-Subject: [PATCH] DSS: DSI support for OMAP2/3 DSS
-
-Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
----
- arch/arm/plat-omap/dss/dsi.c | 3027 ++++++++++++++++++++++++++++++++++++++++++
- 1 files changed, 3027 insertions(+), 0 deletions(-)
- create mode 100644 arch/arm/plat-omap/dss/dsi.c
-
-diff --git a/arch/arm/plat-omap/dss/dsi.c b/arch/arm/plat-omap/dss/dsi.c
-new file mode 100644
-index 0000000..47e5628
---- /dev/null
-+++ b/arch/arm/plat-omap/dss/dsi.c
-@@ -0,0 +1,3027 @@
-+/*
-+ * linux/arch/arm/plat-omap/dss/dsi.c
-+ *
-+ * Copyright (C) 2008 Nokia Corporation
-+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 as published by
-+ * the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope that it will be useful, but WITHOUT
-+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-+ * more details.
-+ *
-+ * You should have received a copy of the GNU General Public License along with
-+ * this program. If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+#define DSS_SUBSYS_NAME "DSI"
-+
-+#include <linux/kernel.h>
-+#include <linux/io.h>
-+#include <linux/clk.h>
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/interrupt.h>
-+#include <linux/delay.h>
-+#include <linux/workqueue.h>
-+#include <linux/mutex.h>
-+
-+#include <mach/board.h>
-+#include <mach/display.h>
-+
-+#include "dss.h"
-+
-+/*#define VERBOSE*/
-+/*#define VERBOSE_IRQ*/
-+/*#define MEASURE_PERF*/
-+
-+#define DSI_BASE 0x4804FC00
-+
-+struct dsi_reg { u16 idx; };
-+
-+#define DSI_REG(idx) ((const struct dsi_reg) { idx })
-+
-+/* DSI Protocol Engine */
-+
-+#define DSI_REVISION DSI_REG(0x0000)
-+#define DSI_SYSCONFIG DSI_REG(0x0010)
-+#define DSI_SYSSTATUS DSI_REG(0x0014)
-+#define DSI_IRQSTATUS DSI_REG(0x0018)
-+#define DSI_IRQENABLE DSI_REG(0x001C)
-+#define DSI_CTRL DSI_REG(0x0040)
-+#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048)
-+#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C)
-+#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050)
-+#define DSI_CLK_CTRL DSI_REG(0x0054)
-+#define DSI_TIMING1 DSI_REG(0x0058)
-+#define DSI_TIMING2 DSI_REG(0x005C)
-+#define DSI_VM_TIMING1 DSI_REG(0x0060)
-+#define DSI_VM_TIMING2 DSI_REG(0x0064)
-+#define DSI_VM_TIMING3 DSI_REG(0x0068)
-+#define DSI_CLK_TIMING DSI_REG(0x006C)
-+#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070)
-+#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074)
-+#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078)
-+#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C)
-+#define DSI_VM_TIMING4 DSI_REG(0x0080)
-+#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084)
-+#define DSI_VM_TIMING5 DSI_REG(0x0088)
-+#define DSI_VM_TIMING6 DSI_REG(0x008C)
-+#define DSI_VM_TIMING7 DSI_REG(0x0090)
-+#define DSI_STOPCLK_TIMING DSI_REG(0x0094)
-+#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20))
-+#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20))
-+#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20))
-+#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20))
-+#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20))
-+#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20))
-+#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20))
-+
-+/* DSIPHY_SCP */
-+
-+#define DSIPHY_CFG0 DSI_REG(0x200 + 0x0000)
-+#define DSIPHY_CFG1 DSI_REG(0x200 + 0x0004)
-+#define DSIPHY_CFG2 DSI_REG(0x200 + 0x0008)
-+#define DSIPHY_CFG5 DSI_REG(0x200 + 0x0014)
-+
-+/* DSI_PLL_CTRL_SCP */
-+
-+#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000)
-+#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004)
-+#define DSI_PLL_GO DSI_REG(0x300 + 0x0008)
-+#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C)
-+#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010)
-+
-+#define REG_GET(idx, start, end) \
-+ FLD_GET(dsi_read_reg(idx), start, end)
-+
-+#define REG_FLD_MOD(idx, val, start, end) \
-+ dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end))
-+
-+/* Global interrupts */
-+#define DSI_IRQ_VC0 (1 << 0)
-+#define DSI_IRQ_VC1 (1 << 1)
-+#define DSI_IRQ_VC2 (1 << 2)
-+#define DSI_IRQ_VC3 (1 << 3)
-+#define DSI_IRQ_WAKEUP (1 << 4)
-+#define DSI_IRQ_RESYNC (1 << 5)
-+#define DSI_IRQ_PLL_LOCK (1 << 7)
-+#define DSI_IRQ_PLL_UNLOCK (1 << 8)
-+#define DSI_IRQ_PLL_RECALL (1 << 9)
-+#define DSI_IRQ_COMPLEXIO_ERR (1 << 10)
-+#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14)
-+#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15)
-+#define DSI_IRQ_TE_TRIGGER (1 << 16)
-+#define DSI_IRQ_ACK_TRIGGER (1 << 17)
-+#define DSI_IRQ_SYNC_LOST (1 << 18)
-+#define DSI_IRQ_LDO_POWER_GOOD (1 << 19)
-+#define DSI_IRQ_TA_TIMEOUT (1 << 20)
-+#define DSI_IRQ_ERROR_MASK \
-+ (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \
-+ DSI_IRQ_TA_TIMEOUT)
-+#define DSI_IRQ_CHANNEL_MASK 0xf
-+
-+/* Virtual channel interrupts */
-+#define DSI_VC_IRQ_CS (1 << 0)
-+#define DSI_VC_IRQ_ECC_CORR (1 << 1)
-+#define DSI_VC_IRQ_PACKET_SENT (1 << 2)
-+#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3)
-+#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4)
-+#define DSI_VC_IRQ_BTA (1 << 5)
-+#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6)
-+#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7)
-+#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8)
-+#define DSI_VC_IRQ_ERROR_MASK \
-+ (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \
-+ DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \
-+ DSI_VC_IRQ_FIFO_TX_UDF)
-+
-+/* ComplexIO interrupts */
-+#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0)
-+#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1)
-+#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2)
-+#define DSI_CIO_IRQ_ERRESC1 (1 << 5)
-+#define DSI_CIO_IRQ_ERRESC2 (1 << 6)
-+#define DSI_CIO_IRQ_ERRESC3 (1 << 7)
-+#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10)
-+#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11)
-+#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12)
-+#define DSI_CIO_IRQ_STATEULPS1 (1 << 15)
-+#define DSI_CIO_IRQ_STATEULPS2 (1 << 16)
-+#define DSI_CIO_IRQ_STATEULPS3 (1 << 17)
-+#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20)
-+#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21)
-+#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22)
-+#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23)
-+#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24)
-+#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25)
-+#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30)
-+#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31)
-+
-+#define DSI_DT_DCS_SHORT_WRITE_0 0x05
-+#define DSI_DT_DCS_SHORT_WRITE_1 0x15
-+#define DSI_DT_DCS_READ 0x06
-+#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37
-+#define DSI_DT_NULL_PACKET 0x09
-+#define DSI_DT_DCS_LONG_WRITE 0x39
-+
-+#define DSI_DT_RX_ACK_WITH_ERR 0x02
-+#define DSI_DT_RX_DCS_LONG_READ 0x1c
-+#define DSI_DT_RX_SHORT_READ_1 0x21
-+#define DSI_DT_RX_SHORT_READ_2 0x22
-+
-+#define FINT_MAX 2100000
-+#define FINT_MIN 750000
-+#define REGN_MAX (1 << 7)
-+#define REGM_MAX ((1 << 11) - 1)
-+#define REGM3_MAX (1 << 4)
-+#define REGM4_MAX (1 << 4)
-+
-+enum fifo_size {
-+ DSI_FIFO_SIZE_0 = 0,
-+ DSI_FIFO_SIZE_32 = 1,
-+ DSI_FIFO_SIZE_64 = 2,
-+ DSI_FIFO_SIZE_96 = 3,
-+ DSI_FIFO_SIZE_128 = 4,
-+};
-+
-+static struct
-+{
-+ void __iomem *base;
-+
-+ struct clk *dss_ick;
-+ struct clk *dss1_fck;
-+ struct clk *dss2_fck;
-+
-+ unsigned long dsi1_pll_fclk; /* Hz */
-+ unsigned long dsi2_pll_fclk; /* Hz */
-+ unsigned long dsiphy; /* Hz */
-+ unsigned long ddr_clk; /* Hz */
-+
-+ struct {
-+ enum fifo_size fifo_size;
-+ int dest_per; /* destination peripheral 0-3 */
-+ } vc[4];
-+
-+ struct mutex lock;
-+
-+ struct completion bta_completion;
-+
-+ spinlock_t update_lock;
-+ int update_ongoing;
-+ int update_syncers;
-+ struct completion update_completion;
-+ struct work_struct framedone_work;
-+
-+ enum omap_dss_update_mode update_mode;
-+ int use_te;
-+ int framedone_scheduled; /* helps to catch strange framedone bugs */
-+
-+ struct {
-+ struct omap_display *display;
-+ int x, y, w, h;
-+ int bytespp;
-+ } update_region;
-+
-+#ifdef MEASURE_PERF
-+ ktime_t measure_time;
-+ int measure_frames;
-+#endif
-+} dsi;
-+
-+
-+static inline void dsi_write_reg(const struct dsi_reg idx, u32 val)
-+{
-+ __raw_writel(val, dsi.base + idx.idx);
-+}
-+
-+static inline u32 dsi_read_reg(const struct dsi_reg idx)
-+{
-+ return __raw_readl(dsi.base + idx.idx);
-+}
-+
-+static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum,
-+ int value)
-+{
-+ int t = 1000;
-+
-+ while (REG_GET(idx, bitnum, bitnum) != value) {
-+ if (--t == 0)
-+ return !value;
-+ }
-+
-+ return value;
-+}
-+
-+
-+#ifdef MEASURE_PERF
-+static void start_measuring(void)
-+{
-+ dsi.measure_time = ktime_get();
-+}
-+
-+static void end_measuring(const char *name)
-+{
-+ ktime_t t;
-+ u32 total_bytes;
-+ u32 us;
-+ const int numframes = 100;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED)
-+ return;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
-+ dsi.measure_frames++;
-+ if (dsi.measure_frames < numframes)
-+ return;
-+ dsi.measure_frames = 0;
-+ }
-+
-+ t = ktime_get();
-+ t = ktime_sub(t, dsi.measure_time);
-+ us = (u32)ktime_to_us(t);
-+ if (us == 0)
-+ us = 1;
-+
-+ total_bytes = dsi.update_region.w *
-+ dsi.update_region.h *
-+ dsi.update_region.bytespp;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
-+ DSSINFO("%s update: %d frames in %u us, %u frames/sec\n",
-+ name, numframes,
-+ us,
-+ 1000*1000 / us);
-+ } else {
-+ DSSINFO("%s update in %u us (%u Hz), %u bytes, %u kbytes/sec\n",
-+ name,
-+ us,
-+ 1000*1000 / us,
-+ total_bytes,
-+ total_bytes * 1000 / us);
-+ }
-+}
-+#else
-+#define start_measuring()
-+#define end_measuring(x)
-+#endif
-+
-+
-+
-+
-+static void print_irq_status(u32 status)
-+{
-+#ifndef VERBOSE_IRQ
-+ if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0)
-+ return;
-+#endif
-+ printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status);
-+
-+#define PIS(x) \
-+ if (status & DSI_IRQ_##x) \
-+ printk(#x " ");
-+#ifdef VERBOSE_IRQ
-+ PIS(VC0);
-+ PIS(VC1);
-+ PIS(VC2);
-+ PIS(VC3);
-+#endif
-+ PIS(WAKEUP);
-+ PIS(RESYNC);
-+ PIS(PLL_LOCK);
-+ PIS(PLL_UNLOCK);
-+ PIS(PLL_RECALL);
-+ PIS(COMPLEXIO_ERR);
-+ PIS(HS_TX_TIMEOUT);
-+ PIS(LP_RX_TIMEOUT);
-+ PIS(TE_TRIGGER);
-+ PIS(ACK_TRIGGER);
-+ PIS(SYNC_LOST);
-+ PIS(LDO_POWER_GOOD);
-+ PIS(TA_TIMEOUT);
-+#undef PIS
-+
-+ printk("\n");
-+}
-+
-+static void print_irq_status_vc(int channel, u32 status)
-+{
-+#ifndef VERBOSE_IRQ
-+ if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0)
-+ return;
-+#endif
-+ printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status);
-+
-+#define PIS(x) \
-+ if (status & DSI_VC_IRQ_##x) \
-+ printk(#x " ");
-+ PIS(CS);
-+ PIS(ECC_CORR);
-+#ifdef VERBOSE_IRQ
-+ PIS(PACKET_SENT);
-+#endif
-+ PIS(FIFO_TX_OVF);
-+ PIS(FIFO_RX_OVF);
-+ PIS(BTA);
-+ PIS(ECC_NO_CORR);
-+ PIS(FIFO_TX_UDF);
-+ PIS(PP_BUSY_CHANGE);
-+#undef PIS
-+ printk("\n");
-+}
-+
-+static void print_irq_status_cio(u32 status)
-+{
-+ printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status);
-+
-+#define PIS(x) \
-+ if (status & DSI_CIO_IRQ_##x) \
-+ printk(#x " ");
-+ PIS(ERRSYNCESC1);
-+ PIS(ERRSYNCESC2);
-+ PIS(ERRSYNCESC3);
-+ PIS(ERRESC1);
-+ PIS(ERRESC2);
-+ PIS(ERRESC3);
-+ PIS(ERRCONTROL1);
-+ PIS(ERRCONTROL2);
-+ PIS(ERRCONTROL3);
-+ PIS(STATEULPS1);
-+ PIS(STATEULPS2);
-+ PIS(STATEULPS3);
-+ PIS(ERRCONTENTIONLP0_1);
-+ PIS(ERRCONTENTIONLP1_1);
-+ PIS(ERRCONTENTIONLP0_2);
-+ PIS(ERRCONTENTIONLP1_2);
-+ PIS(ERRCONTENTIONLP0_3);
-+ PIS(ERRCONTENTIONLP1_3);
-+ PIS(ULPSACTIVENOT_ALL0);
-+ PIS(ULPSACTIVENOT_ALL1);
-+#undef PIS
-+
-+ printk("\n");
-+}
-+
-+static int debug_irq;
-+
-+/* called from dss */
-+void dsi_irq_handler(void)
-+{
-+ u32 irqstatus, vcstatus, ciostatus;
-+ int i;
-+
-+ irqstatus = dsi_read_reg(DSI_IRQSTATUS);
-+
-+ if (irqstatus & DSI_IRQ_ERROR_MASK) {
-+ DSSERR("DSI error, irqstatus %x\n", irqstatus);
-+ print_irq_status(irqstatus);
-+ } else if (debug_irq) {
-+ print_irq_status(irqstatus);
-+ }
-+
-+ for (i = 0; i < 4; ++i) {
-+ if ((irqstatus & (1<<i)) == 0)
-+ continue;
-+
-+ vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i));
-+
-+ if (vcstatus & DSI_VC_IRQ_BTA)
-+ complete(&dsi.bta_completion);
-+
-+ if (vcstatus & DSI_VC_IRQ_ERROR_MASK) {
-+ DSSERR("DSI VC(%d) error, vc irqstatus %x\n",
-+ i, vcstatus);
-+ print_irq_status_vc(i, vcstatus);
-+ } else if (debug_irq) {
-+ print_irq_status_vc(i, vcstatus);
-+ }
-+
-+ dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus);
-+ }
-+
-+ if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) {
-+ ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
-+
-+ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus);
-+
-+ DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus);
-+ print_irq_status_cio(ciostatus);
-+ }
-+
-+ dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK);
-+}
-+
-+
-+static void _dsi_initialize_irq(void)
-+{
-+ u32 l;
-+ int i;
-+
-+ /* disable all interrupts */
-+ dsi_write_reg(DSI_IRQENABLE, 0);
-+ for (i = 0; i < 4; ++i)
-+ dsi_write_reg(DSI_VC_IRQENABLE(i), 0);
-+ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0);
-+
-+ /* clear interrupt status */
-+ l = dsi_read_reg(DSI_IRQSTATUS);
-+ dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK);
-+
-+ for (i = 0; i < 4; ++i) {
-+ l = dsi_read_reg(DSI_VC_IRQSTATUS(i));
-+ dsi_write_reg(DSI_VC_IRQSTATUS(i), l);
-+ }
-+
-+ l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
-+ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l);
-+
-+ /* enable error irqs */
-+ l = DSI_IRQ_ERROR_MASK;
-+ dsi_write_reg(DSI_IRQENABLE, l);
-+
-+ l = DSI_VC_IRQ_ERROR_MASK;
-+ for (i = 0; i < 4; ++i)
-+ dsi_write_reg(DSI_VC_IRQENABLE(i), l);
-+
-+ /* XXX zonda responds incorrectly, causing control error:
-+ Exit from LP-ESC mode to LP11 uses wrong transition states on the
-+ data lines LP0 and LN0. */
-+ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE,
-+ -1 & (~DSI_CIO_IRQ_ERRCONTROL2));
-+}
-+
-+static void dsi_vc_enable_bta_irq(int channel)
-+{
-+ u32 l;
-+
-+ l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
-+ l |= DSI_VC_IRQ_BTA;
-+ dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
-+}
-+
-+static void dsi_vc_disable_bta_irq(int channel)
-+{
-+ u32 l;
-+
-+ l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
-+ l &= ~DSI_VC_IRQ_BTA;
-+ dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
-+}
-+
-+/* DSI func clock. this could also be DSI2_PLL_FCLK */
-+static inline void enable_clocks(int enable)
-+{
-+ if (enable) {
-+ clk_enable(dsi.dss_ick);
-+ clk_enable(dsi.dss1_fck);
-+ } else {
-+ clk_disable(dsi.dss1_fck);
-+ clk_disable(dsi.dss_ick);
-+ }
-+}
-+
-+/* source clock for DSI PLL. this could also be PCLKFREE */
-+static inline void dsi_enable_pll_clock(int enable)
-+{
-+ if (enable)
-+ clk_enable(dsi.dss2_fck);
-+ else
-+ clk_disable(dsi.dss2_fck);
-+}
-+
-+#if 1
-+
-+#ifdef DEBUG
-+static void _dsi_print_reset_status(void)
-+{
-+ u32 l;
-+
-+ /* A dummy read using the SCP interface to any DSIPHY register is
-+ * required after DSIPHY reset to complete the reset of the DSI complex
-+ * I/O. */
-+ l = dsi_read_reg(DSIPHY_CFG5);
-+
-+ printk(KERN_DEBUG "DSI resets: ");
-+
-+ l = dsi_read_reg(DSI_PLL_STATUS);
-+ printk("PLL (%d) ", FLD_GET(l, 0, 0));
-+
-+ l = dsi_read_reg(DSI_COMPLEXIO_CFG1);
-+ printk("CIO (%d) ", FLD_GET(l, 29, 29));
-+
-+ l = dsi_read_reg(DSIPHY_CFG5);
-+ printk("PHY (%x, %d, %d, %d)\n",
-+ FLD_GET(l, 28, 26),
-+ FLD_GET(l, 29, 29),
-+ FLD_GET(l, 30, 30),
-+ FLD_GET(l, 31, 31));
-+}
-+#else
-+#define _dsi_print_reset_status()
-+#endif
-+
-+static int _dsi_reset(void)
-+{
-+ int r = 0;
-+
-+ /* Soft reset */
-+ REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1);
-+
-+ if (wait_for_bit_change(DSI_SYSSTATUS, 0, 1) != 1) {
-+ DSSERR("soft reset failed\n");
-+ r = -ENODEV;
-+ }
-+
-+ /* A dummy read using the SCP interface to any DSIPHY register is
-+ * required after DSIPHY reset to complete the reset of the DSI complex
-+ * I/O. */
-+ dsi_read_reg(DSIPHY_CFG5);
-+
-+ _dsi_print_reset_status();
-+
-+ return r;
-+}
-+#endif
-+
-+static inline int dsi_if_enable(int enable)
-+{
-+ DSSDBG("dsi_if_enable(%d)\n", enable);
-+
-+ enable = enable ? 1 : 0;
-+ REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */
-+
-+ if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) {
-+ DSSERR("Failed to set dsi_if_enable to %d\n", enable);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static unsigned long dsi_fclk_rate(void)
-+{
-+ unsigned long r;
-+
-+ if (dss_get_dsi_clk_source() == 0) {
-+ /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */
-+ r = clk_get_rate(dsi.dss1_fck);
-+ } else {
-+ /* DSI FCLK source is DSI2_PLL_FCLK */
-+ r = dsi.dsi2_pll_fclk;
-+ }
-+
-+ return r;
-+}
-+
-+static int dsi_set_lp_clk_divisor(void)
-+{
-+ int n;
-+ unsigned long dsi_fclk;
-+ unsigned long mhz;
-+
-+ /* LP_CLK_DIVISOR, DSI fclk/n, should be 20MHz - 32kHz */
-+
-+ dsi_fclk = dsi_fclk_rate();
-+
-+ for (n = 1; n < (1 << 13) - 1; ++n) {
-+ mhz = dsi_fclk / n;
-+ if (mhz <= 20*1000*1000)
-+ break;
-+ }
-+
-+ if (n == (1 << 13) - 1) {
-+ DSSERR("DSI: Failed to find LP_CLK_DIVISOR\n");
-+ return -EINVAL;
-+ }
-+
-+ DSSDBG("LP_CLK_DIV %d, LP_CLK %ld\n", n, mhz);
-+
-+ REG_FLD_MOD(DSI_CLK_CTRL, n, 12, 0); /* LP_CLK_DIVISOR */
-+ if (dsi_fclk > 30*1000*1000)
-+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 21, 21); /* LP_RX_SYNCHRO_ENABLE */
-+
-+ return 0;
-+}
-+
-+
-+enum dsi_pll_power_state {
-+ DSI_PLL_POWER_OFF = 0x0,
-+ DSI_PLL_POWER_ON_HSCLK = 0x1,
-+ DSI_PLL_POWER_ON_ALL = 0x2,
-+ DSI_PLL_POWER_ON_DIV = 0x3,
-+};
-+
-+static int dsi_pll_power(enum dsi_pll_power_state state)
-+{
-+ int t = 0;
-+
-+ REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */
-+
-+ /* PLL_PWR_STATUS */
-+ while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) {
-+ udelay(1);
-+ if (t++ > 1000) {
-+ DSSERR("DSI: Failed to set DSI PLL power mode to %d\n",
-+ state);
-+ return -ENODEV;
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+/* return 1 for exact match */
-+static int iterate_dispc_divs(int is_tft, unsigned long pck,
-+ struct dsi_clock_info *cur, struct dsi_clock_info *best)
-+{
-+ int pcd_min = is_tft ? 2 : 3;
-+
-+ for (cur->lck_div = 1; cur->lck_div <= 255; ++cur->lck_div) {
-+ unsigned long lck = cur->dispc_fck / cur->lck_div;
-+
-+ for (cur->pck_div = pcd_min; cur->pck_div <= 255;
-+ ++cur->pck_div) {
-+
-+ cur->pck = lck / cur->pck_div;
-+
-+ if (abs(cur->pck - pck) < abs(best->pck - pck)) {
-+ *best = *cur;
-+ /*
-+ DSSDBG("best match fck %ld, pck %ld, regn %d, "
-+ "regm %d, regm3 %d, ld %d, pd %d\n",
-+ best->dispc_fck,
-+ best->pck,
-+ best->regn, best->regm,
-+ best->regm3,
-+ best->lck_div, best->pck_div);
-+ */
-+ }
-+
-+ if (cur->pck == pck)
-+ return 1;
-+
-+ if (cur->pck < pck)
-+ break;
-+ }
-+
-+ if (lck / pcd_min < cur->pck)
-+ break;
-+ }
-+
-+ return 0;
-+}
-+
-+int dsi_pll_calc_pck(int is_tft, unsigned long pck,
-+ struct dsi_clock_info *cinfo)
-+{
-+ struct dsi_clock_info cur, best;
-+
-+ DSSDBG("dsi_pll_calc\n");
-+
-+ memset(&best, 0, sizeof(best));
-+
-+ memset(&cur, 0, sizeof(cur));
-+ cur.clkin = clk_get_rate(dsi.dss2_fck);
-+ cur.use_dss2_fck = 1;
-+ cur.highfreq = 0;
-+
-+ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
-+ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
-+ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
-+ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
-+ if (cur.highfreq == 0)
-+ cur.fint = cur.clkin / cur.regn;
-+ else
-+ cur.fint = cur.clkin / (2 * cur.regn);
-+
-+ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
-+ continue;
-+
-+ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
-+ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
-+ unsigned long a, b;
-+
-+ a = 2 * cur.regm * (cur.clkin/1000);
-+ b = cur.regn * (cur.highfreq + 1);
-+ cur.dsiphy = a / b * 1000;
-+
-+ if (cur.dsiphy > 1800 * 1000 * 1000)
-+ break;
-+
-+ /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */
-+ for (cur.regm3 = 1; cur.regm3 < REGM3_MAX;
-+ ++cur.regm3) {
-+ int r;
-+
-+ cur.dispc_fck = cur.dsiphy / cur.regm3;
-+
-+ /* this will narrow down the search a bit,
-+ * but still give pixclocks below what was
-+ * requested */
-+ if (cur.dispc_fck < pck)
-+ break;
-+
-+ if (cur.dispc_fck > DISPC_MAX_FCK)
-+ continue;
-+
-+#ifdef CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK
-+ if (cur.dispc_fck <
-+ pck * CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK)
-+ continue;
-+#endif
-+ r = iterate_dispc_divs(is_tft, pck,
-+ &cur, &best);
-+ if (r == 1)
-+ goto found;
-+
-+ }
-+ }
-+ }
-+found:
-+
-+ /* DSI2_PLL_FCLK(MHz) = DSIPHY(MHz) / regm4 < 173MHz */
-+ /* hardcoded 48MHz for now. what should it be? */
-+ best.regm4 = best.dsiphy / (48000000);
-+ if (best.regm4 > REGM4_MAX)
-+ best.regm4 = REGM4_MAX;
-+ best.dsi_fck = best.dsiphy / best.regm4;
-+
-+ *cinfo = best;
-+
-+ return 0;
-+}
-+
-+static int dsi_pll_calc_datafreq(unsigned long datafreq,
-+ struct dsi_clock_info *cinfo)
-+{
-+ struct dsi_clock_info cur, best;
-+ const int use_dss2_fck = 1;
-+
-+ DSSDBG("dsi_pll_calc_datarate\n");
-+
-+ memset(&best, 0, sizeof(best));
-+
-+ memset(&cur, 0, sizeof(cur));
-+ cur.use_dss2_fck = use_dss2_fck;
-+ if (use_dss2_fck) {
-+ cur.clkin = clk_get_rate(dsi.dss2_fck);
-+ cur.highfreq = 0;
-+ } else {
-+ cur.clkin = dispc_pclk_rate();
-+ if (cur.clkin < 32000000)
-+ cur.highfreq = 0;
-+ else
-+ cur.highfreq = 1;
-+ }
-+
-+ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
-+ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
-+ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
-+ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
-+ if (cur.highfreq == 0)
-+ cur.fint = cur.clkin / cur.regn;
-+ else
-+ cur.fint = cur.clkin / (2 * cur.regn);
-+
-+ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
-+ continue;
-+
-+ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
-+ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
-+ unsigned long a, b;
-+
-+ a = 2 * cur.regm * (cur.clkin/1000);
-+ b = cur.regn * (cur.highfreq + 1);
-+ cur.dsiphy = a / b * 1000;
-+
-+ if (cur.dsiphy > 1800 * 1000 * 1000)
-+ break;
-+
-+ if (abs(cur.dsiphy - datafreq) <
-+ abs(best.dsiphy - datafreq)) {
-+ best = cur;
-+ /* DSSDBG("best %ld\n", best.dsiphy); */
-+ }
-+
-+ if (cur.dsiphy == datafreq)
-+ goto found;
-+ }
-+ }
-+found:
-+ /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */
-+ /* hardcoded 48MHz for now. what should it be? */
-+ best.regm3 = best.dsiphy / (48000000);
-+ if (best.regm3 > REGM3_MAX)
-+ best.regm3 = REGM3_MAX;
-+ best.dispc_fck = best.dsiphy / best.regm3;
-+
-+ /* DSI2_PLL_FCLK(MHz) = DSIPHY(MHz) / regm4 < 173MHz */
-+ /* hardcoded 48MHz for now. what should it be? */
-+ best.regm4 = best.dsiphy / (48000000);
-+ if (best.regm4 > REGM4_MAX)
-+ best.regm4 = REGM4_MAX;
-+ best.dsi_fck = best.dsiphy / best.regm4;
-+
-+ *cinfo = best;
-+
-+ return 0;
-+}
-+
-+int dsi_pll_program(struct dsi_clock_info *cinfo)
-+{
-+ int r = 0;
-+ u32 l;
-+
-+ DSSDBG("dsi_pll_program\n");
-+
-+ enable_clocks(1);
-+
-+ dsi.dsiphy = cinfo->dsiphy;
-+ dsi.ddr_clk = dsi.dsiphy / 4;
-+ dsi.dsi1_pll_fclk = cinfo->dispc_fck;
-+ dsi.dsi2_pll_fclk = cinfo->dsi_fck;
-+
-+ DSSDBG("DSI Fint %ld\n", cinfo->fint);
-+
-+ DSSDBG("clkin (%s) rate %ld, highfreq %d\n",
-+ cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree",
-+ cinfo->clkin,
-+ cinfo->highfreq);
-+
-+ /* DSIPHY == CLKIN4DDR */
-+ DSSDBG("DSIPHY = 2 * %d / %d * %lu / %d = %lu\n",
-+ cinfo->regm,
-+ cinfo->regn,
-+ cinfo->clkin,
-+ cinfo->highfreq + 1,
-+ cinfo->dsiphy);
-+
-+ DSSDBG("Data rate on 1 DSI lane %ld Mbps\n",
-+ dsi.dsiphy / 1000 / 1000 / 2);
-+
-+ DSSDBG("Clock lane freq %ld Hz\n", dsi.ddr_clk);
-+
-+ DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n",
-+ cinfo->regm3, cinfo->dispc_fck);
-+ DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n",
-+ cinfo->regm4, cinfo->dsi_fck);
-+
-+ REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */
-+
-+ l = dsi_read_reg(DSI_PLL_CONFIGURATION1);
-+ l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */
-+ l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */
-+ l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */
-+ l = FLD_MOD(l, cinfo->regm3 - 1, 22, 19); /* DSI_CLOCK_DIV */
-+ l = FLD_MOD(l, cinfo->regm4 - 1, 26, 23); /* DSIPROTO_CLOCK_DIV */
-+ dsi_write_reg(DSI_PLL_CONFIGURATION1, l);
-+
-+ l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
-+ l = FLD_MOD(l, 7, 4, 1); /* DSI_PLL_FREQSEL */
-+ /* DSI_PLL_CLKSEL */
-+ l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1, 11, 11);
-+ l = FLD_MOD(l, cinfo->highfreq, 12, 12); /* DSI_PLL_HIGHFREQ */
-+ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
-+ l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */
-+ l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */
-+ dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
-+
-+ REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */
-+
-+ if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) {
-+ DSSERR("dsi pll go bit not going down.\n");
-+ r = -EIO;
-+ goto err;
-+ }
-+
-+ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) {
-+ DSSERR("DSI: cannot lock PLL\n");
-+ r = -EIO;
-+ goto err;
-+ }
-+
-+ l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
-+ l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */
-+ l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */
-+ l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */
-+ l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */
-+ l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */
-+ l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */
-+ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
-+ l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */
-+ l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */
-+ l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */
-+ l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */
-+ l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */
-+ l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */
-+ l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */
-+ dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
-+
-+ DSSDBG("PLL config done\n");
-+err:
-+ enable_clocks(0);
-+
-+ return r;
-+}
-+
-+int dsi_pll_init(int enable_hsclk, int enable_hsdiv)
-+{
-+ int r = 0;
-+ int fck_div, lck_div, pck_div;
-+ unsigned long fck;
-+ enum dsi_pll_power_state pwstate;
-+
-+ DSSDBG("PLL init\n");
-+
-+ enable_clocks(1);
-+ dsi_enable_pll_clock(1);
-+
-+ /* configure dispc fck and pixel clock to something sane */
-+ fck = dispc_calc_clock_div(1, 48 * 1000 * 1000,
-+ &fck_div, &lck_div, &pck_div);
-+ if (fck == 0)
-+ return -EINVAL;
-+
-+ dispc_set_clock_div(fck_div, lck_div, pck_div);
-+
-+ /* PLL does not come out of reset without this... */
-+ dispc_pck_free_enable(1);
-+
-+ if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) {
-+ DSSERR("DSI: PLL not coming out of reset.\n");
-+ r = -ENODEV;
-+ goto err;
-+ }
-+
-+ /* ... but if left on, we get problems when planes do not
-+ * fill the whole display. No idea about this XXX */
-+ dispc_pck_free_enable(0);
-+
-+ if (enable_hsclk && enable_hsdiv)
-+ pwstate = DSI_PLL_POWER_ON_ALL;
-+ else if (enable_hsclk)
-+ pwstate = DSI_PLL_POWER_ON_HSCLK;
-+ else if (enable_hsdiv)
-+ pwstate = DSI_PLL_POWER_ON_DIV;
-+ else
-+ pwstate = DSI_PLL_POWER_OFF;
-+
-+ r = dsi_pll_power(pwstate);
-+
-+ if (r)
-+ goto err;
-+
-+ enable_clocks(0);
-+
-+ DSSDBG("PLL init done\n");
-+
-+ return 0;
-+err:
-+ enable_clocks(0);
-+ dsi_enable_pll_clock(0);
-+ return r;
-+}
-+
-+void dsi_pll_uninit(void)
-+{
-+ dsi_pll_power(DSI_PLL_POWER_OFF);
-+ dsi_enable_pll_clock(0);
-+ DSSDBG("PLL uninit done\n");
-+}
-+
-+unsigned long dsi_get_dsi1_pll_rate(void)
-+{
-+ return dsi.dsi1_pll_fclk;
-+}
-+
-+unsigned long dsi_get_dsi2_pll_rate(void)
-+{
-+ return dsi.dsi2_pll_fclk;
-+}
-+
-+ssize_t dsi_print_clocks(char *buf, ssize_t size)
-+{
-+ ssize_t l = 0;
-+ int clksel;
-+
-+ enable_clocks(1);
-+
-+ clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11);
-+
-+ l += snprintf(buf + l, size - l, "- dsi -\n");
-+
-+ l += snprintf(buf + l, size - l, "dsi fclk source = %s\n",
-+ dss_get_dsi_clk_source() == 0 ?
-+ "dss1_alwon_fclk" : "dsi2_pll_fclk");
-+
-+ l += snprintf(buf + l, size - l, "dsi pll source = %s\n",
-+ clksel == 0 ?
-+ "dss2_alwon_fclk" : "pclkfree");
-+
-+ l += snprintf(buf + l, size - l,
-+ "DSIPHY\t\t%lu\nDDR_CLK\t\t%lu\n",
-+ dsi.dsiphy, dsi.ddr_clk);
-+
-+ l += snprintf(buf + l, size - l,
-+ "dsi1_pll_fck\t%lu (%s)\n"
-+ "dsi2_pll_fck\t%lu (%s)\n",
-+ dsi.dsi1_pll_fclk,
-+ dss_get_dispc_clk_source() == 0 ? "off" : "on",
-+ dsi.dsi2_pll_fclk,
-+ dss_get_dsi_clk_source() == 0 ? "off" : "on");
-+
-+ enable_clocks(0);
-+
-+ return l;
-+}
-+
-+
-+enum dsi_complexio_power_state {
-+ DSI_COMPLEXIO_POWER_OFF = 0x0,
-+ DSI_COMPLEXIO_POWER_ON = 0x1,
-+ DSI_COMPLEXIO_POWER_ULPS = 0x2,
-+};
-+
-+static int dsi_complexio_power(enum dsi_complexio_power_state state)
-+{
-+ int t = 0;
-+
-+ /* PWR_CMD */
-+ REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27);
-+
-+ /* PWR_STATUS */
-+ while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) {
-+ udelay(1);
-+ if (t++ > 1000) {
-+ DSSERR("DSI: failed to set complexio power state to "
-+ "%d\n", state);
-+ return -ENODEV;
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+static void dsi_complexio_config(struct omap_display *display)
-+{
-+ u32 r;
-+
-+ int clk_lane = display->hw_config.u.dsi.clk_lane;
-+ int data1_lane = display->hw_config.u.dsi.data1_lane;
-+ int data2_lane = display->hw_config.u.dsi.data2_lane;
-+ int clk_pol = display->hw_config.u.dsi.clk_pol;
-+ int data1_pol = display->hw_config.u.dsi.data1_pol;
-+ int data2_pol = display->hw_config.u.dsi.data2_pol;
-+
-+ r = dsi_read_reg(DSI_COMPLEXIO_CFG1);
-+ r = FLD_MOD(r, clk_lane, 2, 0);
-+ r = FLD_MOD(r, clk_pol, 3, 3);
-+ r = FLD_MOD(r, data1_lane, 6, 4);
-+ r = FLD_MOD(r, data1_pol, 7, 7);
-+ r = FLD_MOD(r, data2_lane, 10, 8);
-+ r = FLD_MOD(r, data2_pol, 11, 11);
-+ dsi_write_reg(DSI_COMPLEXIO_CFG1, r);
-+
-+ /* The configuration of the DSI complex I/O (number of data lanes,
-+ position, differential order) should not be changed while
-+ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for
-+ the hardware to take into account a new configuration of the complex
-+ I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to
-+ follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1,
-+ then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set
-+ DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the
-+ DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the
-+ DSI complex I/O configuration is unknown. */
-+
-+ /*
-+ REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
-+ REG_FLD_MOD(DSI_CTRL, 0, 0, 0);
-+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20);
-+ REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
-+ */
-+}
-+
-+static inline int ns2ddr(int ns)
-+{
-+ /* convert time in ns to ddr ticks, rounding up */
-+ return (ns * (dsi.ddr_clk/1000/1000) + 999) / 1000;
-+}
-+
-+static void dsi_complexio_timings(void)
-+{
-+ u32 r;
-+ u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit;
-+ u32 tlpx_half, tclk_trail, tclk_zero;
-+ u32 tclk_prepare;
-+
-+ /* calculate timings */
-+
-+ /* 1 * DDR_CLK = 2 * UI */
-+
-+ /* min 40ns + 4*UI max 85ns + 6*UI */
-+ ths_prepare = ns2ddr(59) + 2;
-+
-+ /* min 145ns + 10*UI */
-+ ths_prepare_ths_zero = ns2ddr(145) + 5;
-+
-+ /* min max(8*UI, 60ns+4*UI) */
-+ ths_trail = max(4, ns2ddr(60) + 2);
-+
-+ /* min 100ns */
-+ ths_exit = ns2ddr(100);
-+
-+ /* tlpx min 50n */
-+ tlpx_half = ns2ddr(25);
-+
-+ /* min 60ns */
-+ tclk_trail = ns2ddr(60);
-+
-+ /* min 38ns, max 95ns */
-+ tclk_prepare = ns2ddr(38);
-+
-+ /* min tclk-prepare + tclk-zero = 300ns */
-+ tclk_zero = ns2ddr(300 - 38);
-+
-+#ifdef VERBOSE
-+ DSSDBG("ths_prepare %d, ths_prepare_ths_zero %d\n",
-+ ths_prepare, ths_prepare_ths_zero);
-+ DSSDBG("ths_trail %d, ths_exit %d\n", ths_trail, ths_exit);
-+
-+
-+ DSSDBG("tlpx_half %d, tclk_trail %d, tclk_zero %d\n", tlpx_half,
-+ tclk_trail, tclk_zero);
-+ DSSDBG("tclk_prepare %d\n", tclk_prepare);
-+#endif
-+
-+ /* program timings */
-+
-+ r = dsi_read_reg(DSIPHY_CFG0);
-+ r = FLD_MOD(r, ths_prepare, 31, 24);
-+ r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16);
-+ r = FLD_MOD(r, ths_trail, 15, 8);
-+ r = FLD_MOD(r, ths_exit, 7, 0);
-+ dsi_write_reg(DSIPHY_CFG0, r);
-+
-+ r = dsi_read_reg(DSIPHY_CFG1);
-+ r = FLD_MOD(r, tlpx_half, 22, 16);
-+ r = FLD_MOD(r, tclk_trail, 15, 8);
-+ r = FLD_MOD(r, tclk_zero, 7, 0);
-+ dsi_write_reg(DSIPHY_CFG1, r);
-+
-+ r = dsi_read_reg(DSIPHY_CFG2);
-+ r = FLD_MOD(r, tclk_prepare, 7, 0);
-+ dsi_write_reg(DSIPHY_CFG2, r);
-+}
-+
-+
-+static int dsi_complexio_init(struct omap_display *display)
-+{
-+ int r = 0;
-+
-+ DSSDBG("dsi_complexio_init\n");
-+
-+ /* CIO_CLK_ICG, enable L3 clk to CIO */
-+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14);
-+
-+ if (wait_for_bit_change(DSIPHY_CFG5, 30, 1) != 1) {
-+ DSSERR("DSI: ComplexIO PHY not coming out of reset.\n");
-+ r = -ENODEV;
-+ goto err;
-+ }
-+
-+ dsi_complexio_config(display);
-+
-+ r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON);
-+
-+ if (r)
-+ goto err;
-+
-+ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) {
-+ DSSERR("DSI: ComplexIO not coming out of reset.\n");
-+ r = -ENODEV;
-+ goto err;
-+ }
-+
-+ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) {
-+ DSSERR("DSI: ComplexIO LDO power down.\n");
-+ r = -ENODEV;
-+ goto err;
-+ }
-+
-+ dsi_complexio_timings();
-+
-+ /*
-+ The configuration of the DSI complex I/O (number of data lanes,
-+ position, differential order) should not be changed while
-+ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the
-+ hardware to recognize a new configuration of the complex I/O (done
-+ in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow
-+ this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next
-+ reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20]
-+ LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN
-+ bit to 1. If the sequence is not followed, the DSi complex I/O
-+ configuration is undetermined.
-+ */
-+ dsi_if_enable(1);
-+ dsi_if_enable(0);
-+ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */
-+ dsi_if_enable(1);
-+ dsi_if_enable(0);
-+
-+ DSSDBG("CIO init done\n");
-+err:
-+ return r;
-+}
-+
-+static void dsi_complexio_uninit(void)
-+{
-+ dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF);
-+}
-+
-+
-+
-+static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2,
-+ enum fifo_size size3, enum fifo_size size4)
-+{
-+ u32 r = 0;
-+ int add = 0;
-+ int i;
-+
-+ dsi.vc[0].fifo_size = size1;
-+ dsi.vc[1].fifo_size = size2;
-+ dsi.vc[2].fifo_size = size3;
-+ dsi.vc[3].fifo_size = size4;
-+
-+ for (i = 0; i < 4; i++) {
-+ u8 v;
-+ int size = dsi.vc[i].fifo_size;
-+
-+ if (add + size > 4) {
-+ DSSERR("DSI: Illegal FIFO configuration\n");
-+ BUG();
-+ }
-+
-+ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
-+ r |= v << (8 * i);
-+ /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */
-+ add += size;
-+ }
-+
-+ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r);
-+}
-+
-+static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2,
-+ enum fifo_size size3, enum fifo_size size4)
-+{
-+ u32 r = 0;
-+ int add = 0;
-+ int i;
-+
-+ dsi.vc[0].fifo_size = size1;
-+ dsi.vc[1].fifo_size = size2;
-+ dsi.vc[2].fifo_size = size3;
-+ dsi.vc[3].fifo_size = size4;
-+
-+ for (i = 0; i < 4; i++) {
-+ u8 v;
-+ int size = dsi.vc[i].fifo_size;
-+
-+ if (add + size > 4) {
-+ DSSERR("DSI: Illegal FIFO configuration\n");
-+ BUG();
-+ }
-+
-+ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
-+ r |= v << (8 * i);
-+ /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */
-+ add += size;
-+ }
-+
-+ dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r);
-+}
-+
-+static int dsi_force_tx_stop_mode_io(void)
-+{
-+ u32 r;
-+
-+ r = dsi_read_reg(DSI_TIMING1);
-+ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
-+ dsi_write_reg(DSI_TIMING1, r);
-+
-+ if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) {
-+ DSSERR("TX_STOP bit not going down\n");
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static void dsi_vc_print_status(int channel)
-+{
-+ u32 r;
-+
-+ r = dsi_read_reg(DSI_VC_CTRL(channel));
-+ DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, "
-+ "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ",
-+ channel,
-+ FLD_GET(r, 5, 5),
-+ FLD_GET(r, 6, 6),
-+ FLD_GET(r, 15, 15),
-+ FLD_GET(r, 16, 16),
-+ FLD_GET(r, 20, 20));
-+
-+ r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS);
-+ DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff);
-+}
-+
-+static void dsi_vc_config(int channel)
-+{
-+ u32 r;
-+
-+ DSSDBG("dsi_vc_config %d\n", channel);
-+
-+ r = dsi_read_reg(DSI_VC_CTRL(channel));
-+
-+ r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */
-+ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */
-+ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */
-+ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */
-+ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
-+ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
-+ r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */
-+
-+ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
-+ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
-+
-+ dsi_write_reg(DSI_VC_CTRL(channel), r);
-+}
-+
-+static void dsi_vc_config_vp(int channel)
-+{
-+ u32 r;
-+
-+ DSSDBG("dsi_vc_config_vp\n");
-+
-+ r = dsi_read_reg(DSI_VC_CTRL(channel));
-+
-+ r = FLD_MOD(r, 1, 1, 1); /* SOURCE, 1 = video port */
-+ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */
-+ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */
-+ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */
-+ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
-+ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
-+ r = FLD_MOD(r, 1, 9, 9); /* MODE_SPEED, high speed on/off */
-+
-+ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
-+ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
-+
-+ dsi_write_reg(DSI_VC_CTRL(channel), r);
-+}
-+
-+
-+static int dsi_vc_enable(int channel, int enable)
-+{
-+ DSSDBG("dsi_vc_enable channel %d, enable %d\n", channel, enable);
-+
-+ enable = enable ? 1 : 0;
-+
-+ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0);
-+
-+ if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) {
-+ DSSERR("Failed to set dsi_vc_enable to %d\n", enable);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static void dsi_vc_enable_hs(int channel, int enable)
-+{
-+ DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable);
-+
-+ dsi_vc_enable(channel, 0);
-+ dsi_if_enable(0);
-+
-+ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9);
-+
-+ dsi_vc_enable(channel, 1);
-+ dsi_if_enable(1);
-+
-+ dsi_force_tx_stop_mode_io();
-+}
-+
-+static void dsi_vc_flush_long_data(int channel)
-+{
-+ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
-+ u32 val;
-+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
-+ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n",
-+ (val >> 0) & 0xff,
-+ (val >> 8) & 0xff,
-+ (val >> 16) & 0xff,
-+ (val >> 24) & 0xff);
-+ }
-+}
-+
-+static u16 dsi_vc_flush_receive_data(int channel)
-+{
-+ /* RX_FIFO_NOT_EMPTY */
-+ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
-+ u32 val;
-+ u8 dt;
-+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
-+ DSSDBG("\trawval %#08x\n", val);
-+ dt = FLD_GET(val, 7, 0);
-+ if (dt == DSI_DT_RX_ACK_WITH_ERR) {
-+ u16 err = FLD_GET(val, 23, 8);
-+ DSSERR("\tACK with ERROR: %#x\n", err);
-+ if (err & (1 << 9))
-+ DSSERR("\t\tECC multibit\n");
-+ if (err & (1 << 11))
-+ DSSERR("\t\tData type not recognized\n");
-+ if (err & (1 << 12))
-+ DSSERR("\t\tInvalid VC ID\n");
-+
-+ } else if (dt == DSI_DT_RX_SHORT_READ_1) {
-+ DSSDBG("\tDCS short response, 1 byte: %#x\n",
-+ FLD_GET(val, 23, 8));
-+ return FLD_GET(val, 23, 8);
-+ } else if (dt == DSI_DT_RX_SHORT_READ_2) {
-+ DSSDBG("\tDCS short response, 2 byte: %#x\n",
-+ FLD_GET(val, 23, 8));
-+ return FLD_GET(val, 23, 8);
-+ } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
-+ DSSDBG("\tDCS long response, len %d\n",
-+ FLD_GET(val, 23, 8));
-+ dsi_vc_flush_long_data(channel);
-+ } else {
-+ DSSERR("\tunknown datatype\n");
-+ }
-+ }
-+ return 0;
-+}
-+
-+static int dsi_vc_send_bta(int channel)
-+{
-+ unsigned long tmo;
-+
-+ /*DSSDBG("dsi_vc_send_bta_sync %d\n", channel); */
-+
-+ if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */
-+ DSSERR("rx fifo not empty when sending BTA, dumping data:\n");
-+ dsi_vc_flush_receive_data(channel);
-+ }
-+
-+ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */
-+
-+ tmo = jiffies + msecs_to_jiffies(10);
-+ while (REG_GET(DSI_VC_CTRL(channel), 6, 6) == 1) {
-+ if (time_after(jiffies, tmo)) {
-+ DSSERR("Failed to send BTA\n");
-+ return -EIO;
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+static int dsi_vc_send_bta_sync(int channel)
-+{
-+ int r = 0;
-+
-+ init_completion(&dsi.bta_completion);
-+
-+ dsi_vc_enable_bta_irq(channel);
-+
-+ r = dsi_vc_send_bta(channel);
-+ if (r)
-+ goto err;
-+
-+ if (wait_for_completion_timeout(&dsi.bta_completion,
-+ msecs_to_jiffies(500)) == 0) {
-+ DSSERR("Failed to receive BTA\n");
-+ r = -EIO;
-+ goto err;
-+ }
-+err:
-+ dsi_vc_disable_bta_irq(channel);
-+
-+ return r;
-+}
-+
-+static inline void dsi_vc_write_long_header(int channel, u8 data_type,
-+ u16 len, u8 ecc)
-+{
-+ u32 val;
-+ u8 data_id;
-+
-+ /*data_id = data_type | channel << 6; */
-+ data_id = data_type | dsi.vc[channel].dest_per << 6;
-+
-+ val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) |
-+ FLD_VAL(ecc, 31, 24);
-+
-+ dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val);
-+}
-+
-+static inline void dsi_vc_write_long_payload(int channel,
-+ u8 b1, u8 b2, u8 b3, u8 b4)
-+{
-+ u32 val;
-+
-+ val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0;
-+
-+/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n",
-+ b1, b2, b3, b4, val); */
-+
-+ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val);
-+}
-+
-+static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len,
-+ u8 ecc)
-+{
-+ /*u32 val; */
-+ int i;
-+ u8 *p;
-+ int r = 0;
-+ u8 b1, b2, b3, b4;
-+
-+ /*DSSDBG("dsi_vc_send_long, %d bytes\n", len); */
-+
-+ /* len + header */
-+ if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) {
-+ DSSERR("DSI: unable to send long packet: packet too long.\n");
-+ return -EINVAL;
-+ }
-+
-+ dsi_vc_write_long_header(channel, data_type, len, ecc);
-+
-+ /*dsi_vc_print_status(0); */
-+
-+ p = data;
-+ for (i = 0; i < len >> 2; i++) {
-+ /*DSSDBG("\tsending full packet %d\n", i); */
-+ /*dsi_vc_print_status(0); */
-+
-+ b1 = *p++;
-+ b2 = *p++;
-+ b3 = *p++;
-+ b4 = *p++;
-+
-+ dsi_vc_write_long_payload(channel, b1, b2, b3, b4);
-+ }
-+
-+ i = len % 4;
-+ if (i) {
-+ b1 = 0; b2 = 0; b3 = 0;
-+
-+ /*DSSDBG("\tsending remainder bytes %d\n", i); */
-+
-+ switch (i) {
-+ case 3:
-+ b1 = *p++;
-+ b2 = *p++;
-+ b3 = *p++;
-+ break;
-+ case 2:
-+ b1 = *p++;
-+ b2 = *p++;
-+ break;
-+ case 1:
-+ b1 = *p++;
-+ break;
-+ }
-+
-+ dsi_vc_write_long_payload(channel, b1, b2, b3, 0);
-+ }
-+
-+ return r;
-+}
-+
-+static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc)
-+{
-+ u32 r;
-+ u8 data_id;
-+/*
-+ DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n",
-+ channel,
-+ data_type, data & 0xff, (data >> 8) & 0xff);
-+*/
-+ if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) {
-+ DSSERR("ERROR FIFO FULL, aborting transfer\n");
-+ return -EINVAL;
-+ }
-+
-+ data_id = data_type | channel << 6;
-+
-+ r = (data_id << 0) | (data << 8) | (ecc << 24);
-+
-+ dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r);
-+
-+ return 0;
-+}
-+
-+int dsi_vc_send_null(int channel)
-+{
-+ u8 nullpkg[] = {0, 0, 0, 0};
-+ return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0);
-+}
-+EXPORT_SYMBOL(dsi_vc_send_null);
-+
-+int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len)
-+{
-+ int r;
-+
-+ BUG_ON(len == 0);
-+
-+ if (len == 1) {
-+ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0,
-+ data[0], 0);
-+ } else if (len == 2) {
-+ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1,
-+ data[0] | (data[1] << 8), 0);
-+ } else {
-+ /* 0x39 = DCS Long Write */
-+ r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE,
-+ data, len, 0);
-+ }
-+
-+ return r;
-+}
-+EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
-+
-+int dsi_vc_dcs_write(int channel, u8 *data, int len)
-+{
-+ int r;
-+
-+ r = dsi_vc_dcs_write_nosync(channel, data, len);
-+ if (r)
-+ return r;
-+
-+ /* Some devices need time to process the msg in low power mode.
-+ This also makes the write synchronous, and checks that
-+ the peripheral is still alive */
-+ r = dsi_vc_send_bta_sync(channel);
-+
-+ return r;
-+}
-+EXPORT_SYMBOL(dsi_vc_dcs_write);
-+
-+int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen)
-+{
-+ u32 val;
-+ u8 dt;
-+ int debug = 0;
-+
-+ if (debug)
-+ DSSDBG("dsi_vc_dcs_read\n");
-+
-+ dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0);
-+
-+ dsi_vc_send_bta_sync(channel);
-+
-+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
-+ if (debug)
-+ DSSDBG("\trawval %#08x\n", val);
-+ dt = FLD_GET(val, 7, 0);
-+ if (dt == DSI_DT_RX_ACK_WITH_ERR) {
-+ u16 err = FLD_GET(val, 23, 8);
-+ DSSERR("\tACK with ERROR: %#x\n", err);
-+ if (err & (1 << 9))
-+ DSSERR("\t\tECC multibit\n");
-+ if (err & (1 << 11))
-+ DSSERR("\t\tData type not recognized\n");
-+ if (err & (1 << 12))
-+ DSSERR("\t\tInvalid VC ID\n");
-+ return -1;
-+
-+ } else if (dt == DSI_DT_RX_SHORT_READ_1) {
-+ u8 data = FLD_GET(val, 15, 8);
-+ if (debug)
-+ DSSDBG("\tDCS short response, 1 byte: %#x\n", data);
-+
-+ if (buflen < 1)
-+ return -1;
-+
-+ buf[0] = data;
-+
-+ return 1;
-+ } else if (dt == DSI_DT_RX_SHORT_READ_2) {
-+ u16 data = FLD_GET(val, 23, 8);
-+ if (debug)
-+ DSSDBG("\tDCS short response, 2 byte: %#x\n", data);
-+
-+ if (buflen < 2)
-+ return -1;
-+
-+ buf[0] = data & 0xff;
-+ buf[1] = (data >> 8) & 0xff;
-+
-+ return 2;
-+ } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
-+ int x;
-+ int len = FLD_GET(val, 23, 8);
-+ if (debug)
-+ DSSDBG("\tDCS long response, len %d\n", len);
-+
-+ if (len > buflen)
-+ return -1;
-+
-+ x = 0;
-+ while (x < len) {
-+ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
-+ if (debug)
-+ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 "
-+ "%#02x\n",
-+ (val >> 0) & 0xff,
-+ (val >> 8) & 0xff,
-+ (val >> 16) & 0xff,
-+ (val >> 24) & 0xff);
-+
-+ if (x < len)
-+ buf[x++] = (val >> 0) & 0xff;
-+ if (x < len)
-+ buf[x++] = (val >> 8) & 0xff;
-+ if (x < len)
-+ buf[x++] = (val >> 16) & 0xff;
-+ if (x < len)
-+ buf[x++] = (val >> 24) & 0xff;
-+ }
-+
-+ return len;
-+ } else {
-+ DSSERR("\tunknown datatype\n");
-+ return -1;
-+ }
-+}
-+EXPORT_SYMBOL(dsi_vc_dcs_read);
-+
-+
-+int dsi_vc_set_max_rx_packet_size(int channel, u16 len)
-+{
-+ return dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE,
-+ len, 0);
-+}
-+EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size);
-+
-+
-+static int dsi_set_lp_rx_timeout(int ns, int x4, int x16)
-+{
-+ u32 r;
-+ unsigned long fck;
-+ int ticks;
-+
-+ /* ticks in DSI_FCK */
-+
-+ fck = dsi_fclk_rate();
-+ ticks = (fck / 1000 / 1000) * ns / 1000;
-+
-+ if (ticks > 0x1fff) {
-+ DSSERR("LP_TX_TO too high\n");
-+ return -EINVAL;
-+ }
-+
-+ r = dsi_read_reg(DSI_TIMING2);
-+ r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */
-+ r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */
-+ r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */
-+ r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */
-+ dsi_write_reg(DSI_TIMING2, r);
-+
-+ DSSDBG("LP_RX_TO %ld ns (%#x ticks)\n",
-+ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
-+ (fck / 1000 / 1000),
-+ ticks);
-+
-+ return 0;
-+}
-+
-+static int dsi_set_ta_timeout(int ns, int x8, int x16)
-+{
-+ u32 r;
-+ unsigned long fck;
-+ int ticks;
-+
-+ /* ticks in DSI_FCK */
-+
-+ fck = dsi_fclk_rate();
-+ ticks = (fck / 1000 / 1000) * ns / 1000;
-+
-+ if (ticks > 0x1fff) {
-+ DSSERR("TA_TO too high\n");
-+ return -EINVAL;
-+ }
-+
-+ r = dsi_read_reg(DSI_TIMING1);
-+ r = FLD_MOD(r, 1, 31, 31); /* TA_TO */
-+ r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */
-+ r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */
-+ r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */
-+ dsi_write_reg(DSI_TIMING1, r);
-+
-+ DSSDBG("TA_TO %ld ns (%#x ticks)\n",
-+ (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) /
-+ (fck / 1000 / 1000),
-+ ticks);
-+
-+ return 0;
-+}
-+
-+static int dsi_set_stop_state_counter(int ns, int x4, int x16)
-+{
-+ u32 r;
-+ unsigned long fck;
-+ int ticks;
-+
-+ /* ticks in DSI_FCK */
-+
-+ fck = dsi_fclk_rate();
-+ ticks = (fck / 1000 / 1000) * ns / 1000;
-+
-+ if (ticks > 0x1fff) {
-+ DSSERR("STOP_STATE_COUNTER_IO too high\n");
-+ return -EINVAL;
-+ }
-+
-+ r = dsi_read_reg(DSI_TIMING1);
-+ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
-+ r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */
-+ r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */
-+ r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */
-+ dsi_write_reg(DSI_TIMING1, r);
-+
-+ DSSDBG("STOP_STATE_COUNTER %ld ns (%#x ticks)\n",
-+ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
-+ (fck / 1000 / 1000),
-+ ticks);
-+
-+ return 0;
-+}
-+
-+static int dsi_set_hs_tx_timeout(int ns, int x4, int x16)
-+{
-+ u32 r;
-+ unsigned long fck;
-+ int ticks;
-+
-+ /* ticks in TxByteClkHS */
-+
-+ fck = dsi.ddr_clk / 4;
-+ ticks = (fck / 1000 / 1000) * ns / 1000;
-+
-+ if (ticks > 0x1fff) {
-+ DSSERR("HS_TX_TO too high\n");
-+ return -EINVAL;
-+ }
-+
-+ r = dsi_read_reg(DSI_TIMING2);
-+ r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */
-+ r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */
-+ r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */
-+ r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */
-+ dsi_write_reg(DSI_TIMING2, r);
-+
-+ DSSDBG("HS_TX_TO %ld ns (%#x ticks)\n",
-+ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
-+ (fck / 1000 / 1000),
-+ ticks);
-+
-+ return 0;
-+}
-+static int dsi_proto_config(struct omap_display *display)
-+{
-+ u32 r;
-+ int buswidth = 0;
-+
-+ dsi_config_tx_fifo(DSI_FIFO_SIZE_128,
-+ DSI_FIFO_SIZE_0,
-+ DSI_FIFO_SIZE_0,
-+ DSI_FIFO_SIZE_0);
-+
-+ dsi_config_rx_fifo(DSI_FIFO_SIZE_128,
-+ DSI_FIFO_SIZE_0,
-+ DSI_FIFO_SIZE_0,
-+ DSI_FIFO_SIZE_0);
-+
-+ /* XXX what values for the timeouts? */
-+ dsi_set_stop_state_counter(1000, 0, 0);
-+
-+ dsi_set_ta_timeout(50000, 1, 1);
-+
-+ /* 3000ns * 16 */
-+ dsi_set_lp_rx_timeout(3000, 0, 1);
-+
-+ /* 10000ns * 4 */
-+ dsi_set_hs_tx_timeout(10000, 1, 0);
-+
-+ switch (display->bpp) {
-+ case 16:
-+ buswidth = 0;
-+ break;
-+ case 18:
-+ buswidth = 1;
-+ break;
-+ case 24:
-+ buswidth = 2;
-+ break;
-+ default:
-+ BUG();
-+ }
-+
-+ r = dsi_read_reg(DSI_CTRL);
-+ r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */
-+ r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */
-+ r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */
-+ /* XXX what should the ratio be */
-+ r = FLD_MOD(r, 0, 4, 4); /* VP_CLK_RATIO, VP_PCLK = VP_CLK/2 */
-+ r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */
-+ r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */
-+ r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */
-+ r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */
-+ r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */
-+ r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */
-+ r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */
-+
-+ dsi_write_reg(DSI_CTRL, r);
-+
-+ /* we configure vc0 for L4 communication, and
-+ * vc1 for dispc */
-+ dsi_vc_config(0);
-+ dsi_vc_config_vp(1);
-+
-+ /* set all vc targets to peripheral 0 */
-+ dsi.vc[0].dest_per = 0;
-+ dsi.vc[1].dest_per = 0;
-+ dsi.vc[2].dest_per = 0;
-+ dsi.vc[3].dest_per = 0;
-+
-+ return 0;
-+}
-+
-+static void dsi_proto_timings(void)
-+{
-+ int tlpx_half, tclk_zero, tclk_prepare, tclk_trail;
-+ int tclk_pre, tclk_post;
-+ int ddr_clk_pre, ddr_clk_post;
-+ u32 r;
-+
-+ r = dsi_read_reg(DSIPHY_CFG1);
-+ tlpx_half = FLD_GET(r, 22, 16);
-+ tclk_trail = FLD_GET(r, 15, 8);
-+ tclk_zero = FLD_GET(r, 7, 0);
-+
-+ r = dsi_read_reg(DSIPHY_CFG2);
-+ tclk_prepare = FLD_GET(r, 7, 0);
-+
-+ /* min 8*UI */
-+ tclk_pre = 4;
-+ /* min 60ns + 52*UI */
-+ tclk_post = ns2ddr(60) + 26;
-+
-+ ddr_clk_pre = (tclk_pre + tlpx_half*2 + tclk_zero + tclk_prepare) / 4;
-+ ddr_clk_post = (tclk_post + tclk_trail) / 4;
-+
-+ r = dsi_read_reg(DSI_CLK_TIMING);
-+ r = FLD_MOD(r, ddr_clk_pre, 15, 8);
-+ r = FLD_MOD(r, ddr_clk_post, 7, 0);
-+ dsi_write_reg(DSI_CLK_TIMING, r);
-+
-+#ifdef VERBOSE
-+ DSSDBG("ddr_clk_pre %d, ddr_clk_post %d\n",
-+ ddr_clk_pre,
-+ ddr_clk_post);
-+#endif
-+}
-+
-+
-+#define DSI_DECL_VARS \
-+ int __dsi_cb = 0; u32 __dsi_cv = 0;
-+
-+#define DSI_FLUSH(ch) \
-+ if (__dsi_cb > 0) { \
-+ /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \
-+ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \
-+ __dsi_cb = __dsi_cv = 0; \
-+ }
-+
-+#define DSI_PUSH(ch, data) \
-+ do { \
-+ __dsi_cv |= (data) << (__dsi_cb * 8); \
-+ /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \
-+ if (++__dsi_cb > 3) \
-+ DSI_FLUSH(ch); \
-+ } while (0)
-+
-+static int dsi_update_screen_l4(struct omap_display *display,
-+ int x, int y, int w, int h)
-+{
-+ /* Note: supports only 24bit colors in 32bit container */
-+ int first = 1;
-+ int fifo_stalls = 0;
-+ int max_dsi_packet_size;
-+ int max_data_per_packet;
-+ int max_pixels_per_packet;
-+ int pixels_left;
-+ int bytespp = 3;
-+ int scr_width;
-+ u32 *data;
-+ int start_offset;
-+ int horiz_inc;
-+ int current_x;
-+ struct omap_overlay *ovl;
-+
-+ debug_irq = 0;
-+
-+ DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n",
-+ x, y, w, h);
-+
-+ ovl = &display->manager->overlays[0];
-+
-+ if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U)
-+ return -EINVAL;
-+
-+ if (display->ctrl->bpp != 24)
-+ return -EINVAL;
-+
-+ enable_clocks(1);
-+
-+ scr_width = ovl->info.screen_width;
-+ data = ovl->info.vaddr;
-+
-+ start_offset = scr_width * y + x;
-+ horiz_inc = scr_width - w;
-+ current_x = x;
-+
-+ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes
-+ * in fifo */
-+
-+ /* When using CPU, max long packet size is TX buffer size */
-+ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4;
-+
-+ /* we seem to get better perf if we divide the tx fifo to half,
-+ and while the other half is being sent, we fill the other half
-+ max_dsi_packet_size /= 2; */
-+
-+ max_data_per_packet = max_dsi_packet_size - 4 - 1;
-+
-+ max_pixels_per_packet = max_data_per_packet / bytespp;
-+
-+ DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet);
-+
-+ display->ctrl->setup_update(display, x, y, w, h);
-+
-+ pixels_left = w * h;
-+
-+ DSSDBG("total pixels %d\n", pixels_left);
-+
-+ data += start_offset;
-+
-+ dsi.update_region.x = x;
-+ dsi.update_region.y = y;
-+ dsi.update_region.w = w;
-+ dsi.update_region.h = h;
-+ dsi.update_region.bytespp = bytespp;
-+
-+ start_measuring();
-+
-+ while (pixels_left > 0) {
-+ /* 0x2c = write_memory_start */
-+ /* 0x3c = write_memory_continue */
-+ u8 dcs_cmd = first ? 0x2c : 0x3c;
-+ int pixels;
-+ DSI_DECL_VARS;
-+ first = 0;
-+
-+#if 1
-+ /* using fifo not empty */
-+ /* TX_FIFO_NOT_EMPTY */
-+ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
-+ udelay(1);
-+ fifo_stalls++;
-+ if (fifo_stalls > 0xfffff) {
-+ DSSERR("fifo stalls overflow, pixels left %d\n",
-+ pixels_left);
-+ dsi_if_enable(0);
-+ enable_clocks(0);
-+ return -EIO;
-+ }
-+ }
-+#elif 1
-+ /* using fifo emptiness */
-+ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 <
-+ max_dsi_packet_size) {
-+ fifo_stalls++;
-+ if (fifo_stalls > 0xfffff) {
-+ DSSERR("fifo stalls overflow, pixels left %d\n",
-+ pixels_left);
-+ dsi_if_enable(0);
-+ enable_clocks(0);
-+ return -EIO;
-+ }
-+ }
-+#else
-+ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) {
-+ fifo_stalls++;
-+ if (fifo_stalls > 0xfffff) {
-+ DSSERR("fifo stalls overflow, pixels left %d\n",
-+ pixels_left);
-+ dsi_if_enable(0);
-+ enable_clocks(0);
-+ return -EIO;
-+ }
-+ }
-+#endif
-+ pixels = min(max_pixels_per_packet, pixels_left);
-+
-+ pixels_left -= pixels;
-+
-+ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE,
-+ 1 + pixels * bytespp, 0);
-+
-+ DSI_PUSH(0, dcs_cmd);
-+
-+ while (pixels-- > 0) {
-+ u32 pix = *data++;
-+
-+ DSI_PUSH(0, (pix >> 16) & 0xff);
-+ DSI_PUSH(0, (pix >> 8) & 0xff);
-+ DSI_PUSH(0, (pix >> 0) & 0xff);
-+
-+ current_x++;
-+ if (current_x == x+w) {
-+ current_x = x;
-+ data += horiz_inc;
-+ }
-+ }
-+
-+ DSI_FLUSH(0);
-+ }
-+
-+ end_measuring("L4");
-+
-+ enable_clocks(0);
-+
-+ return 0;
-+}
-+
-+#if 0
-+static void dsi_clear_screen_l4(struct omap_display *display,
-+ int x, int y, int w, int h)
-+{
-+ int first = 1;
-+ int fifo_stalls = 0;
-+ int max_dsi_packet_size;
-+ int max_data_per_packet;
-+ int max_pixels_per_packet;
-+ int pixels_left;
-+ int bytespp = 3;
-+ int pixnum;
-+
-+ debug_irq = 0;
-+
-+ DSSDBG("dsi_clear_screen_l4 (%d,%d %dx%d)\n",
-+ x, y, w, h);
-+
-+ if (display->ctrl->bpp != 24)
-+ return -EINVAL;
-+
-+ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp)
-+ * bytes in fifo */
-+
-+ /* When using CPU, max long packet size is TX buffer size */
-+ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4;
-+
-+ max_data_per_packet = max_dsi_packet_size - 4 - 1;
-+
-+ max_pixels_per_packet = max_data_per_packet / bytespp;
-+
-+ enable_clocks(1);
-+
-+ display->ctrl->setup_update(display, x, y, w, h);
-+
-+ pixels_left = w * h;
-+
-+ dsi.update_region.x = x;
-+ dsi.update_region.y = y;
-+ dsi.update_region.w = w;
-+ dsi.update_region.h = h;
-+ dsi.update_region.bytespp = bytespp;
-+
-+ start_measuring();
-+
-+ pixnum = 0;
-+
-+ while (pixels_left > 0) {
-+ /* 0x2c = write_memory_start */
-+ /* 0x3c = write_memory_continue */
-+ u8 dcs_cmd = first ? 0x2c : 0x3c;
-+ int pixels;
-+ DSI_DECL_VARS;
-+ first = 0;
-+
-+ /* TX_FIFO_NOT_EMPTY */
-+ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
-+ fifo_stalls++;
-+ if (fifo_stalls > 0xfffff) {
-+ DSSERR("fifo stalls overflow\n");
-+ dsi_if_enable(0);
-+ enable_clocks(0);
-+ return;
-+ }
-+ }
-+
-+ pixels = min(max_pixels_per_packet, pixels_left);
-+
-+ pixels_left -= pixels;
-+
-+ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE,
-+ 1 + pixels * bytespp, 0);
-+
-+ DSI_PUSH(0, dcs_cmd);
-+
-+ while (pixels-- > 0) {
-+ u32 pix;
-+
-+ pix = 0x000000;
-+
-+ DSI_PUSH(0, (pix >> 16) & 0xff);
-+ DSI_PUSH(0, (pix >> 8) & 0xff);
-+ DSI_PUSH(0, (pix >> 0) & 0xff);
-+ }
-+
-+ DSI_FLUSH(0);
-+ }
-+
-+ enable_clocks(0);
-+
-+ end_measuring("L4 CLEAR");
-+}
-+#endif
-+
-+static int dsi_wait_for_framedone(void)
-+{
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+ if (dsi.update_ongoing) {
-+ long wait = msecs_to_jiffies(1000);
-+ dsi.update_syncers++;
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ wait = wait_for_completion_timeout(&dsi.update_completion,
-+ wait);
-+ if (wait == 0) {
-+ DSSERR("timeout waiting sync\n");
-+ return -ETIME;
-+ }
-+ } else {
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ }
-+
-+ return 0;
-+}
-+
-+static void dsi_setup_update_dispc(struct omap_display *display,
-+ int x, int y, int w, int h)
-+{
-+ int bytespp = 3;
-+
-+ DSSDBG("dsi_setup_update_dispc(%d,%d %dx%d)\n",
-+ x, y, w, h);
-+
-+ dsi.update_region.display = display;
-+ dsi.update_region.x = x;
-+ dsi.update_region.y = y;
-+ dsi.update_region.w = w;
-+ dsi.update_region.h = h;
-+ dsi.update_region.bytespp = bytespp;
-+
-+ enable_clocks(1);
-+
-+ dispc_setup_partial_planes(display, &x, &y, &w, &h);
-+
-+ dispc_set_lcd_size(w, h);
-+
-+ enable_clocks(0);
-+}
-+
-+static void dsi_update_screen_dispc(struct omap_display *display)
-+{
-+ int bytespp = 3;
-+ int total_len;
-+ int line_packet_len;
-+ int x, y, w, h;
-+ u32 l;
-+
-+ x = dsi.update_region.x;
-+ y = dsi.update_region.y;
-+ w = dsi.update_region.w;
-+ h = dsi.update_region.h;
-+
-+ DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n",
-+ x, y, w, h);
-+
-+ enable_clocks(1);
-+
-+ /* TODO: one packet could be longer, I think? Max is the line buffer */
-+ line_packet_len = w * bytespp + 1; /* 1 byte for DCS cmd */
-+ total_len = line_packet_len * h;
-+
-+ display->ctrl->setup_update(display, x, y, w, h);
-+
-+ if (0)
-+ dsi_vc_print_status(1);
-+
-+ start_measuring();
-+
-+ l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */
-+ dsi_write_reg(DSI_VC_TE(1), l);
-+
-+ dsi_vc_write_long_header(1, DSI_DT_DCS_LONG_WRITE, line_packet_len, 0);
-+
-+ if (dsi.use_te)
-+ l = FLD_MOD(l, 1, 30, 30); /* TE_EN */
-+ else
-+ l = FLD_MOD(l, 1, 31, 31); /* TE_START */
-+ dsi_write_reg(DSI_VC_TE(1), l);
-+
-+ dispc_enable_lcd_out(1);
-+
-+ if (dsi.use_te)
-+ dsi_vc_send_bta(1);
-+}
-+
-+static void framedone_callback(void *data, u32 mask)
-+{
-+ if (dsi.framedone_scheduled) {
-+ DSSERR("Framedone already scheduled. Bogus FRAMEDONE IRQ?\n");
-+ return;
-+ }
-+
-+ dsi.framedone_scheduled = 1;
-+
-+ /* We get FRAMEDONE when DISPC has finished sending pixels and turns
-+ * itself off. However, DSI still has the pixels in its buffers, and
-+ * is sending the data. Thus we have to wait until we can do a new
-+ * transfer or turn the clocks off. We do that in a separate work
-+ * func. */
-+ schedule_work(&dsi.framedone_work);
-+}
-+
-+static void framedone_worker(struct work_struct *work)
-+{
-+ unsigned long flags;
-+ u32 l;
-+ unsigned long tmo;
-+ int i = 0;
-+
-+ l = REG_GET(DSI_VC_TE(1), 23, 0); /* TE_SIZE */
-+
-+ /* There shouldn't be much stuff in DSI buffers, if any, so we'll
-+ * just busyloop */
-+ if (l > 0) {
-+ tmo = jiffies + msecs_to_jiffies(50);
-+ while (REG_GET(DSI_VC_TE(1), 23, 0) > 0) { /* TE_SIZE */
-+ i++;
-+ if (time_after(jiffies, tmo)) {
-+ DSSERR("timeout waiting TE_SIZE to zero\n");
-+ break;
-+ }
-+ cpu_relax();
-+ }
-+ }
-+
-+ if (REG_GET(DSI_VC_TE(1), 30, 30))
-+ DSSERR("TE_EN not zero\n");
-+
-+ if (REG_GET(DSI_VC_TE(1), 31, 31))
-+ DSSERR("TE_START not zero\n");
-+
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+ if (dsi.update_ongoing == 0) {
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ DSSERR("framedone irq without update request\n");
-+ return;
-+ }
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+
-+ end_measuring("DISPC");
-+
-+ DSSDBG("FRAMEDONE\n");
-+
-+#if 0
-+ if (l)
-+ DSSWARN("FRAMEDONE irq too early, %d bytes, %d loops\n", l, i);
-+#else
-+ if (l > 1024*3)
-+ DSSWARN("FRAMEDONE irq too early, %d bytes, %d loops\n", l, i);
-+#endif
-+
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+ dsi.update_ongoing = 0;
-+ while (dsi.update_syncers > 0) {
-+ complete(&dsi.update_completion);
-+ --dsi.update_syncers;
-+ }
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+
-+#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
-+ dispc_fake_vsync_irq();
-+#endif
-+ enable_clocks(0);
-+
-+ dsi.framedone_scheduled = 0;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+ dsi.update_ongoing = 1;
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ dsi_update_screen_dispc(dsi.update_region.display);
-+ }
-+}
-+
-+static void dsi_start_auto_update(struct omap_display *display)
-+{
-+ unsigned long flags;
-+ int bytespp = 3;
-+
-+ DSSDBG("starting auto update\n");
-+
-+ dsi.update_region.display = display;
-+ dsi.update_region.x = 0;
-+ dsi.update_region.y = 0;
-+ dsi.update_region.w = display->x_res;
-+ dsi.update_region.h = display->y_res;
-+ dsi.update_region.bytespp = bytespp;
-+
-+ enable_clocks(1);
-+
-+ dispc_set_lcd_size(display->x_res, display->y_res);
-+
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+ dsi.update_ongoing = 1;
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ dsi_update_screen_dispc(display);
-+}
-+
-+static void dsi_stop_auto_update(void)
-+{
-+ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED;
-+
-+ DSSDBG("waiting for display to finish.\n");
-+ dsi_wait_for_framedone();
-+ DSSDBG("done waiting\n");
-+ enable_clocks(0);
-+
-+ dsi.update_mode = OMAP_DSS_UPDATE_MANUAL;
-+}
-+
-+static int dsi_set_update_mode(struct omap_display *display,
-+ enum omap_dss_update_mode mode)
-+{
-+ if (mode == dsi.update_mode)
-+ return 0;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
-+ dsi_stop_auto_update();
-+ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
-+ dsi_wait_for_framedone();
-+
-+ dsi.update_mode = mode;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
-+ dsi_start_auto_update(display);
-+
-+ return 0;
-+}
-+
-+/* Display funcs */
-+
-+static int dsi_display_enable(struct omap_display *display)
-+{
-+ int r = 0;
-+ struct dsi_clock_info cinfo;
-+
-+ DSSDBG("dsi_display_enable\n");
-+
-+ mutex_lock(&dsi.lock);
-+
-+ if (display->state != OMAP_DSS_DISPLAY_DISABLED) {
-+ DSSERR("display already enabled\n");
-+ r = -EINVAL;
-+ goto err0;
-+ }
-+
-+ enable_clocks(1);
-+
-+ r = omap_dispc_register_isr(framedone_callback, NULL,
-+ DISPC_IRQ_FRAMEDONE);
-+ if (r) {
-+ DSSERR("can't get FRAMEDONE irq\n");
-+ goto err1;
-+ }
-+
-+ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
-+
-+ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI);
-+ dispc_enable_fifohandcheck(1);
-+ dispc_setup_plane_fifo(OMAP_DSS_GFX, 0);
-+ dispc_setup_plane_fifo(OMAP_DSS_VIDEO1, 0);
-+ dispc_setup_plane_fifo(OMAP_DSS_VIDEO2, 0);
-+ dispc_set_tft_data_lines(display->bpp);
-+
-+ {
-+ struct omap_video_timings timings = {
-+ .hsw = 1,
-+ .hfp = 1,
-+ .hbp = 1,
-+ .vsw = 1,
-+ .vfp = 0,
-+ .vbp = 0,
-+ };
-+
-+ dispc_set_lcd_timings(&timings);
-+ }
-+
-+ _dsi_print_reset_status();
-+
-+ r = dsi_pll_init(1, 0);
-+ if (r)
-+ goto err2;
-+
-+ /* XXX hardcoded for 300Mbp/lane for now */
-+ r = dsi_pll_calc_datafreq(600 * 1000 * 1000, &cinfo);
-+ if (r)
-+ goto err3;
-+
-+ r = dsi_pll_program(&cinfo);
-+ if (r)
-+ goto err3;
-+
-+ DSSDBG("PLL OK\n");
-+
-+ r = dsi_complexio_init(display);
-+ if (r)
-+ goto err3;
-+
-+ _dsi_print_reset_status();
-+
-+ dsi_proto_timings();
-+ dsi_set_lp_clk_divisor();
-+
-+ if (1)
-+ _dsi_print_reset_status();
-+
-+ r = dsi_proto_config(display);
-+ if (r)
-+ goto err4;
-+
-+ /* enable interface */
-+ dsi_vc_enable(0, 1);
-+ dsi_vc_enable(1, 1);
-+ dsi_if_enable(1);
-+ dsi_force_tx_stop_mode_io();
-+
-+
-+ if (display->ctrl && display->ctrl->enable) {
-+ r = display->ctrl->enable(display);
-+ if (r)
-+ goto err5;
-+ }
-+
-+ if (display->panel && display->panel->enable) {
-+ r = display->panel->enable(display);
-+ if (r)
-+ goto err6;
-+ }
-+
-+ if (dsi.use_te) {
-+ r = display->ctrl->enable_te(display, 1);
-+ if (r)
-+ goto err7;
-+ }
-+
-+ /* enable high-speed after initial config */
-+ dsi_vc_enable_hs(0, 1);
-+
-+ display->state = OMAP_DSS_DISPLAY_ACTIVE;
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
-+ dsi_start_auto_update(display);
-+
-+ enable_clocks(0);
-+ mutex_unlock(&dsi.lock);
-+
-+ return 0;
-+err7:
-+ if (display->panel && display->panel->disable)
-+ display->panel->disable(display);
-+err6:
-+ if (display->ctrl && display->ctrl->disable)
-+ display->ctrl->disable(display);
-+err5:
-+ dsi_if_enable(0);
-+err4:
-+ dsi_complexio_uninit();
-+err3:
-+ dsi_pll_uninit();
-+err2:
-+ omap_dispc_unregister_isr(framedone_callback);
-+err1:
-+ enable_clocks(0);
-+err0:
-+ mutex_unlock(&dsi.lock);
-+ DSSDBG("dsi_display_enable FAILED\n");
-+ return r;
-+}
-+
-+static void dsi_display_disable(struct omap_display *display)
-+{
-+ DSSDBG("dsi_display_disable\n");
-+
-+ mutex_lock(&dsi.lock);
-+
-+ if (display->state == OMAP_DSS_DISPLAY_DISABLED)
-+ goto end;
-+
-+ enable_clocks(1);
-+
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
-+ dsi_stop_auto_update();
-+ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
-+ dsi_wait_for_framedone();
-+
-+ display->state = OMAP_DSS_DISPLAY_DISABLED;
-+
-+ omap_dispc_unregister_isr(framedone_callback);
-+
-+ if (display->panel && display->panel->disable)
-+ display->panel->disable(display);
-+ if (display->ctrl && display->ctrl->disable)
-+ display->ctrl->disable(display);
-+
-+ /* XXX sleep a bit to make sure all DSI buffers are sent.
-+ * We should check it from somewhere, fifo fullness I guess */
-+ msleep(200);
-+
-+ dsi_complexio_uninit();
-+ dsi_pll_uninit();
-+
-+ enable_clocks(0);
-+
-+end:
-+ mutex_unlock(&dsi.lock);
-+}
-+
-+static int dsi_display_suspend(struct omap_display *display)
-+{
-+ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
-+ return -EINVAL;
-+
-+ if (display->panel->suspend)
-+ display->panel->suspend(display);
-+
-+ if (display->ctrl->suspend)
-+ display->ctrl->suspend(display);
-+
-+ display->state = OMAP_DSS_DISPLAY_SUSPENDED;
-+
-+ return 0;
-+}
-+
-+static int dsi_display_resume(struct omap_display *display)
-+{
-+ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
-+ return -EINVAL;
-+
-+ if (display->panel->resume)
-+ display->panel->resume(display);
-+
-+ if (display->ctrl->resume)
-+ display->ctrl->resume(display);
-+
-+ display->state = OMAP_DSS_DISPLAY_ACTIVE;
-+
-+ return 0;
-+}
-+
-+static void dsi_display_set_mode(struct omap_display *display,
-+ int x_res, int y_res, int bpp)
-+{
-+ DSSDBG("dsi_display_set_mode %dx%d, %dbpp\n", x_res, y_res, bpp);
-+}
-+
-+static int dsi_display_update(struct omap_display *display,
-+ int x, int y, int w, int h)
-+{
-+ unsigned long flags;
-+ int r = 0;
-+
-+ DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h);
-+
-+ if (w == 0 || h == 0)
-+ return 0;
-+
-+ mutex_lock(&dsi.lock);
-+
-+ if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL)
-+ goto end; /* XXX return error? */
-+
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+
-+ if (dsi.update_ongoing) {
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ DSSERR("DSI is busy\n");
-+ r = -EBUSY;
-+ goto end;
-+ }
-+
-+ dsi.update_ongoing = 1;
-+
-+ if (dsi.update_syncers > 0)
-+ DSSERR("someone waiting for sync, and no update ongoing\n");
-+
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+
-+ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
-+ dsi_setup_update_dispc(display, x, y, w, h);
-+ dsi_update_screen_dispc(display);
-+ } else {
-+ r = dsi_update_screen_l4(display, x, y, w, h);
-+ if (r)
-+ goto end;
-+
-+ spin_lock_irqsave(&dsi.update_lock, flags);
-+ dsi.update_ongoing = 0;
-+ while (dsi.update_syncers > 0) {
-+ complete(&dsi.update_completion);
-+ --dsi.update_syncers;
-+ }
-+ spin_unlock_irqrestore(&dsi.update_lock, flags);
-+ }
-+
-+end:
-+ mutex_unlock(&dsi.lock);
-+ return r;
-+}
-+
-+static int dsi_display_sync(struct omap_display *display)
-+{
-+ int r = 0;
-+
-+ DSSDBG("dsi_display_sync\n");
-+
-+ mutex_lock(&dsi.lock);
-+
-+ if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL)
-+ goto end;
-+
-+ r = dsi_wait_for_framedone();
-+
-+end:
-+ mutex_unlock(&dsi.lock);
-+ return r;
-+}
-+
-+static int dsi_display_set_update_mode(struct omap_display *display,
-+ enum omap_dss_update_mode mode)
-+{
-+ int r;
-+
-+ DSSDBG("dsi_display_set_update_mode\n");
-+
-+ mutex_lock(&dsi.lock);
-+
-+ r = dsi_set_update_mode(display, mode);
-+
-+ mutex_unlock(&dsi.lock);
-+
-+ return r;
-+}
-+
-+static enum omap_dss_update_mode dsi_display_get_update_mode(
-+ struct omap_display *display)
-+{
-+ return dsi.update_mode;
-+}
-+
-+static int dsi_display_enable_te(struct omap_display *display, int enable)
-+{
-+ enum omap_dss_update_mode mode;
-+
-+ DSSDBG("dsi_display_enable_te\n");
-+
-+ mutex_lock(&dsi.lock);
-+
-+ enable_clocks(1);
-+
-+ mode = dsi.update_mode;
-+
-+ /* XXX perhaps suspend or something would be better here */
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
-+ dsi_stop_auto_update();
-+ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
-+ dsi_wait_for_framedone();
-+
-+ dsi.use_te = enable;
-+ display->ctrl->enable_te(display, enable);
-+ if (enable) {
-+ /* disable LP_RX_TO, so that we can receive TE.
-+ * Time to wait for TE is longer than the timer allows */
-+ REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */
-+ } else {
-+ REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */
-+ }
-+
-+ /* restore the old update mode */
-+ dsi_set_update_mode(display, mode);
-+
-+ enable_clocks(0);
-+
-+ mutex_unlock(&dsi.lock);
-+
-+ return 0;
-+}
-+
-+static int dsi_display_get_te(struct omap_display *display)
-+{
-+ return dsi.use_te;
-+}
-+
-+static int dsi_display_run_test(struct omap_display *display, int test_num)
-+{
-+ enum omap_dss_update_mode mode;
-+ int r = 0;
-+
-+ DSSDBG("dsi_display_run_test %d\n", test_num);
-+
-+ mutex_lock(&dsi.lock);
-+
-+ enable_clocks(1);
-+
-+ mode = dsi.update_mode;
-+
-+ /* XXX perhaps suspend or something would be better here */
-+ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
-+ dsi_stop_auto_update();
-+ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
-+ dsi_wait_for_framedone();
-+
-+ /* run test first in low speed mode */
-+ dsi_vc_enable_hs(0, 0);
-+
-+ if (display->ctrl->run_test) {
-+ r = display->ctrl->run_test(display, test_num);
-+ if (r)
-+ goto fail;
-+ }
-+
-+ if (display->panel->run_test) {
-+ r = display->panel->run_test(display, test_num);
-+ if (r)
-+ goto fail;
-+ }
-+
-+ /* then in high speed */
-+ dsi_vc_enable_hs(0, 1);
-+
-+ if (display->ctrl->run_test) {
-+ r = display->ctrl->run_test(display, test_num);
-+ if (r)
-+ goto fail;
-+ }
-+
-+ if (display->panel->run_test)
-+ r = display->panel->run_test(display, test_num);
-+
-+fail:
-+ dsi_vc_enable_hs(0, 1);
-+
-+ /* restore the old update mode */
-+ dsi_set_update_mode(display, mode);
-+
-+ enable_clocks(0);
-+
-+ mutex_unlock(&dsi.lock);
-+
-+ return r;
-+}
-+
-+void dsi_init_display(struct omap_display *display)
-+{
-+ DSSDBG("DSI init\n");
-+
-+ display->enable = dsi_display_enable;
-+ display->disable = dsi_display_disable;
-+ display->suspend = dsi_display_suspend;
-+ display->resume = dsi_display_resume;
-+ display->set_mode = dsi_display_set_mode;
-+ display->update = dsi_display_update;
-+ display->sync = dsi_display_sync;
-+ display->set_update_mode = dsi_display_set_update_mode;
-+ display->get_update_mode = dsi_display_get_update_mode;
-+ display->enable_te = dsi_display_enable_te;
-+ display->get_te = dsi_display_get_te;
-+ display->run_test = dsi_display_run_test;
-+
-+ display->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
-+}
-+
-+int dsi_init(void)
-+{
-+ u32 rev;
-+
-+ init_completion(&dsi.bta_completion);
-+ INIT_WORK(&dsi.framedone_work, framedone_worker);
-+
-+ init_completion(&dsi.update_completion);
-+ spin_lock_init(&dsi.update_lock);
-+ dsi.update_ongoing = 0;
-+ dsi.update_syncers = 0;
-+
-+ mutex_init(&dsi.lock);
-+
-+ dsi.base = ioremap(DSI_BASE, SZ_1K);
-+ if (!dsi.base) {
-+ DSSERR("can't ioremap DSI\n");
-+ return -ENOMEM;
-+ }
-+
-+ dsi.dss_ick = get_dss_ick();
-+ dsi.dss1_fck = get_dss1_fck();
-+ dsi.dss2_fck = get_dss2_fck();
-+
-+ enable_clocks(1);
-+
-+ /* Autoidle */
-+ REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0);
-+
-+ /* ENWAKEUP */
-+ REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2);
-+
-+ /* SIDLEMODE smart-idle */
-+ REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3);
-+
-+ if (0)
-+ _dsi_reset();
-+
-+ _dsi_initialize_irq();
-+
-+ rev = dsi_read_reg(DSI_REVISION);
-+ printk(KERN_INFO "OMAP DSI rev %d.%d\n",
-+ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
-+
-+ enable_clocks(0);
-+
-+ return 0;
-+}
-+
-+void dsi_exit(void)
-+{
-+ iounmap(dsi.base);
-+
-+ DSSDBG("omap_dsi_exit\n");
-+}
-+
---
-1.5.6.3
-