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-rw-r--r--recipes/linux/linux-omap-2.6.31/dss2/0013-OMAP-DSS2-SDI-driver.patch284
1 files changed, 284 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-2.6.31/dss2/0013-OMAP-DSS2-SDI-driver.patch b/recipes/linux/linux-omap-2.6.31/dss2/0013-OMAP-DSS2-SDI-driver.patch
new file mode 100644
index 0000000000..698d4fb893
--- /dev/null
+++ b/recipes/linux/linux-omap-2.6.31/dss2/0013-OMAP-DSS2-SDI-driver.patch
@@ -0,0 +1,284 @@
+From 6191570efd848a073fcdfb619ba28cc0d66b2842 Mon Sep 17 00:00:00 2001
+From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+Date: Wed, 5 Aug 2009 16:18:44 +0300
+Subject: [PATCH 13/18] OMAP: DSS2: SDI driver
+
+SDI (Serial Display Interface) implements TI Flatlink 3G display
+interface.
+
+Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+---
+ drivers/video/omap2/dss/sdi.c | 261 +++++++++++++++++++++++++++++++++++++++++
+ 1 files changed, 261 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/video/omap2/dss/sdi.c
+
+diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
+new file mode 100644
+index 0000000..a9c727e
+--- /dev/null
++++ b/drivers/video/omap2/dss/sdi.c
+@@ -0,0 +1,261 @@
++/*
++ * linux/drivers/video/omap2/dss/sdi.c
++ *
++ * Copyright (C) 2009 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 "SDI"
++
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/err.h>
++
++#include <mach/board.h>
++#include <mach/display.h>
++#include "dss.h"
++
++static struct {
++ bool skip_init;
++ bool update_enabled;
++} sdi;
++
++static void sdi_basic_init(void)
++{
++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
++
++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
++ dispc_set_tft_data_lines(24);
++ dispc_lcd_enable_signal_polarity(1);
++}
++
++static int sdi_display_enable(struct omap_dss_device *dssdev)
++{
++ struct omap_video_timings *t = &dssdev->panel.timings;
++ struct dispc_clock_info cinfo;
++ u16 lck_div, pck_div;
++ unsigned long fck;
++ unsigned long pck;
++ int r;
++
++ r = omap_dss_start_device(dssdev);
++ if (r) {
++ DSSERR("failed to start device\n");
++ goto err0;
++ }
++
++ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
++ DSSERR("dssdev already enabled\n");
++ r = -EINVAL;
++ goto err1;
++ }
++
++ /* In case of skip_init sdi_init has already enabled the clocks */
++ if (!sdi.skip_init)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ sdi_basic_init();
++
++ /* 15.5.9.1.2 */
++ dssdev->panel.config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF;
++
++ dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi,
++ dssdev->panel.acb);
++
++ if (!sdi.skip_init)
++ r = dispc_calc_clock_div(1, t->pixel_clock * 1000,
++ &cinfo);
++ else
++ r = dispc_get_clock_div(&cinfo);
++
++ if (r)
++ goto err2;
++
++ fck = cinfo.fck;
++ lck_div = cinfo.lck_div;
++ pck_div = cinfo.pck_div;
++
++ pck = fck / lck_div / pck_div / 1000;
++
++ if (pck != t->pixel_clock) {
++ DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
++ "got %lu kHz\n",
++ t->pixel_clock, pck);
++
++ t->pixel_clock = pck;
++ }
++
++
++ dispc_set_lcd_timings(t);
++
++ r = dispc_set_clock_div(&cinfo);
++ if (r)
++ goto err2;
++
++ if (!sdi.skip_init) {
++ dss_sdi_init(dssdev->phy.sdi.datapairs);
++ dss_sdi_enable();
++ mdelay(2);
++ }
++
++ dispc_enable_lcd_out(1);
++
++ if (dssdev->driver->enable) {
++ r = dssdev->driver->enable(dssdev);
++ if (r)
++ goto err3;
++ }
++
++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ sdi.skip_init = 0;
++
++ return 0;
++err3:
++ dispc_enable_lcd_out(0);
++err2:
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++err1:
++ omap_dss_stop_device(dssdev);
++err0:
++ return r;
++}
++
++static int sdi_display_resume(struct omap_dss_device *dssdev);
++
++static void sdi_display_disable(struct omap_dss_device *dssdev)
++{
++ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
++ return;
++
++ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
++ sdi_display_resume(dssdev);
++
++ if (dssdev->driver->disable)
++ dssdev->driver->disable(dssdev);
++
++ dispc_enable_lcd_out(0);
++
++ dss_sdi_disable();
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
++
++ omap_dss_stop_device(dssdev);
++}
++
++static int sdi_display_suspend(struct omap_dss_device *dssdev)
++{
++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return -EINVAL;
++
++ if (dssdev->driver->suspend)
++ dssdev->driver->suspend(dssdev);
++
++ dispc_enable_lcd_out(0);
++
++ dss_sdi_disable();
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
++
++ return 0;
++}
++
++static int sdi_display_resume(struct omap_dss_device *dssdev)
++{
++ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
++ return -EINVAL;
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dss_sdi_enable();
++ mdelay(2);
++
++ dispc_enable_lcd_out(1);
++
++ if (dssdev->driver->resume)
++ dssdev->driver->resume(dssdev);
++
++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ return 0;
++}
++
++static int sdi_display_set_update_mode(struct omap_dss_device *dssdev,
++ enum omap_dss_update_mode mode)
++{
++ if (mode == OMAP_DSS_UPDATE_MANUAL)
++ return -EINVAL;
++
++ if (mode == OMAP_DSS_UPDATE_DISABLED) {
++ dispc_enable_lcd_out(0);
++ sdi.update_enabled = 0;
++ } else {
++ dispc_enable_lcd_out(1);
++ sdi.update_enabled = 1;
++ }
++
++ return 0;
++}
++
++static enum omap_dss_update_mode sdi_display_get_update_mode(
++ struct omap_dss_device *dssdev)
++{
++ return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
++ OMAP_DSS_UPDATE_DISABLED;
++}
++
++static void sdi_get_timings(struct omap_dss_device *dssdev,
++ struct omap_video_timings *timings)
++{
++ *timings = dssdev->panel.timings;
++}
++
++int sdi_init_display(struct omap_dss_device *dssdev)
++{
++ DSSDBG("SDI init\n");
++
++ dssdev->enable = sdi_display_enable;
++ dssdev->disable = sdi_display_disable;
++ dssdev->suspend = sdi_display_suspend;
++ dssdev->resume = sdi_display_resume;
++ dssdev->set_update_mode = sdi_display_set_update_mode;
++ dssdev->get_update_mode = sdi_display_get_update_mode;
++ dssdev->get_timings = sdi_get_timings;
++
++ return 0;
++}
++
++int sdi_init(bool skip_init)
++{
++ /* we store this for first display enable, then clear it */
++ sdi.skip_init = skip_init;
++
++ /*
++ * Enable clocks already here, otherwise there would be a toggle
++ * of them until sdi_display_enable is called.
++ */
++ if (skip_init)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ return 0;
++}
++
++void sdi_exit(void)
++{
++}
+--
+1.6.2.4
+
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