path: root/packages/linux/linux-omap/0009-DSS-support-for-OMAP3-SDP-board.patch

From 0938c1e91fe69da535e06d092bdec6fcc95ad650 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Mon, 20 Oct 2008 13:13:15 +0300
Subject: [PATCH] DSS: support for OMAP3 SDP board

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
---
 arch/arm/mach-omap2/board-3430sdp.c |  234 +++++++++++++++++++++++++++++++++--
 drivers/video/omap2/Kconfig         |    7 +-
 drivers/video/omap2/Makefile        |    1 +
 drivers/video/omap2/panel-sdp3430.c |  110 ++++++++++++++++
 4 files changed, 340 insertions(+), 12 deletions(-)
 create mode 100644 drivers/video/omap2/panel-sdp3430.c

diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 7ee85e9..3a644b1 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -40,6 +40,8 @@
 #include <mach/keypad.h>
 #include <mach/dma.h>
 #include <mach/gpmc.h>
+#include <mach/omapfb.h>
+#include <mach/display.h>
 
 #include <asm/io.h>
 #include <asm/delay.h>
@@ -240,14 +242,224 @@ static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
 	},
 };
 
-static struct platform_device sdp3430_lcd_device = {
-	.name		= "sdp2430_lcd",
-	.id		= -1,
+static struct omap_fbmem_config sdp3430_fbmem0_config = {
+	.size = 1024*768*4,
+	.start = OMAPFB_MEMTYPE_SDRAM,
+};
+
+static struct omap_fbmem_config sdp3430_fbmem1_config = {
+	.size = 640*480*4,
+	.start = OMAPFB_MEMTYPE_SDRAM,
 };
 
+static struct omap_fbmem_config sdp3430_fbmem2_config = {
+	.size = 640*480*4,
+	.start = OMAPFB_MEMTYPE_SDRAM,
+};
+
+
+#define SDP2430_LCD_PANEL_BACKLIGHT_GPIO	91
+#define SDP2430_LCD_PANEL_ENABLE_GPIO		154
+#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO	24
+#define SDP3430_LCD_PANEL_ENABLE_GPIO		28
+
+#define PM_RECEIVER             TWL4030_MODULE_PM_RECEIVER
+#define ENABLE_VAUX2_DEDICATED  0x09
+#define ENABLE_VAUX2_DEV_GRP    0x20
+#define ENABLE_VAUX3_DEDICATED	0x03
+#define ENABLE_VAUX3_DEV_GRP	0x20
+
+#define ENABLE_VPLL2_DEDICATED	0x05
+#define ENABLE_VPLL2_DEV_GRP	0xE0
+#define TWL4030_VPLL2_DEV_GRP	0x33
+#define TWL4030_VPLL2_DEDICATED	0x36
+
+#define t2_out(c, r, v) twl4030_i2c_write_u8(c, r, v)
+
+static unsigned backlight_gpio;
+static unsigned enable_gpio;
+static int lcd_enabled;
+static int dvi_enabled;
+
+static void __init sdp3430_display_init(void)
+{
+	int r;
+
+	enable_gpio    = SDP3430_LCD_PANEL_ENABLE_GPIO;
+	backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO;
+
+	r = gpio_request(enable_gpio, "LCD reset");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD reset GPIO\n");
+		goto err0;
+	}
+
+	r = gpio_request(backlight_gpio, "LCD Backlight");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD backlight GPIO\n");
+		goto err1;
+	}
+
+	gpio_direction_output(enable_gpio, 0);
+	gpio_direction_output(backlight_gpio, 0);
+
+	return;
+err1:
+	gpio_free(enable_gpio);
+err0:
+	return;
+}
+
+
+static int sdp3430_panel_enable_lcd(struct omap_display *display)
+{
+	u8 ded_val, ded_reg;
+	u8 grp_val, grp_reg;
+
+	if (dvi_enabled) {
+		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
+		return -EINVAL;
+	}
+
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		t2_out(PM_RECEIVER, ENABLE_VPLL2_DEDICATED,
+				TWL4030_VPLL2_DEDICATED);
+		t2_out(PM_RECEIVER, ENABLE_VPLL2_DEV_GRP,
+				TWL4030_VPLL2_DEV_GRP);
+	}
+
+	ded_reg = TWL4030_VAUX3_DEDICATED;
+	ded_val = ENABLE_VAUX3_DEDICATED;
+	grp_reg = TWL4030_VAUX3_DEV_GRP;
+	grp_val = ENABLE_VAUX3_DEV_GRP;
+
+	gpio_direction_output(enable_gpio, 1);
+	gpio_direction_output(backlight_gpio, 1);
+
+	if (0 != t2_out(PM_RECEIVER, ded_val, ded_reg))
+		return -EIO;
+	if (0 != t2_out(PM_RECEIVER, grp_val, grp_reg))
+		return -EIO;
+
+	lcd_enabled = 1;
+
+	return 0;
+}
+
+static void sdp3430_panel_disable_lcd(struct omap_display *display)
+{
+	lcd_enabled = 0;
+
+	gpio_direction_output(enable_gpio, 0);
+	gpio_direction_output(backlight_gpio, 0);
+
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEDICATED);
+		t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEV_GRP);
+		mdelay(4);
+	}
+}
+
+static struct omap_display_data sdp3430_display_data = {
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.name = "lcd",
+	.panel_name = "panel-sdp3430",
+	.u.dpi.data_lines = 16,
+	.panel_enable = sdp3430_panel_enable_lcd,
+	.panel_disable = sdp3430_panel_disable_lcd,
+};
+
+static int sdp3430_panel_enable_dvi(struct omap_display *display)
+{
+	if (lcd_enabled) {
+		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
+		return -EINVAL;
+	}
+
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		t2_out(PM_RECEIVER, ENABLE_VPLL2_DEDICATED,
+				TWL4030_VPLL2_DEDICATED);
+		t2_out(PM_RECEIVER, ENABLE_VPLL2_DEV_GRP,
+				TWL4030_VPLL2_DEV_GRP);
+	}
+
+	dvi_enabled = 1;
+
+	return 0;
+}
+
+static void sdp3430_panel_disable_dvi(struct omap_display *display)
+{
+	dvi_enabled = 0;
+
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEDICATED);
+		t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEV_GRP);
+		mdelay(4);
+	}
+}
+
+
+static struct omap_display_data sdp3430_display_data_dvi = {
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.name = "dvi",
+	.panel_name = "panel-dvi",
+	.u.dpi.data_lines = 24,
+	.panel_enable = sdp3430_panel_enable_dvi,
+	.panel_disable = sdp3430_panel_disable_dvi,
+};
+
+static int sdp3430_panel_enable_tv(struct omap_display *display)
+{
+#define ENABLE_VDAC_DEDICATED           0x03
+#define ENABLE_VDAC_DEV_GRP             0x20
+
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ENABLE_VDAC_DEDICATED,
+			TWL4030_VDAC_DEDICATED);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ENABLE_VDAC_DEV_GRP, TWL4030_VDAC_DEV_GRP);
+
+	return 0;
+}
+
+static void sdp3430_panel_disable_tv(struct omap_display *display)
+{
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x00,
+			TWL4030_VDAC_DEDICATED);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x00,
+			TWL4030_VDAC_DEV_GRP);
+}
+
+static struct omap_display_data sdp3430_display_data_tv = {
+	.type = OMAP_DISPLAY_TYPE_VENC,
+	.name = "tv",
+	.u.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+	.panel_enable = sdp3430_panel_enable_tv,
+	.panel_disable = sdp3430_panel_disable_tv,
+};
+
+static struct omap_dss_platform_data sdp3430_dss_data = {
+	.num_displays = 3,
+	.displays = {
+		&sdp3430_display_data,
+		&sdp3430_display_data_dvi,
+		&sdp3430_display_data_tv,
+	}
+};
+
+static struct platform_device sdp3430_dss_device = {
+	.name          = "omap-dss",
+	.id            = -1,
+	.dev            = {
+		.platform_data = &sdp3430_dss_data,
+	},
+};
+
+
 static struct platform_device *sdp3430_devices[] __initdata = {
 	&sdp3430_smc91x_device,
-	&sdp3430_lcd_device,
+	&sdp3430_dss_device,
 };
 
 static inline void __init sdp3430_init_smc91x(void)
@@ -294,13 +506,11 @@ static struct omap_uart_config sdp3430_uart_config __initdata = {
 	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
 };
 
-static struct omap_lcd_config sdp3430_lcd_config __initdata = {
-	.ctrl_name	= "internal",
-};
-
 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
 	{ OMAP_TAG_UART,	&sdp3430_uart_config },
-	{ OMAP_TAG_LCD,		&sdp3430_lcd_config },
+	{ OMAP_TAG_FBMEM,       &sdp3430_fbmem0_config },
+	{ OMAP_TAG_FBMEM,       &sdp3430_fbmem1_config },
+	{ OMAP_TAG_FBMEM,       &sdp3430_fbmem2_config },
 };
 
 static int sdp3430_batt_table[] = {
@@ -467,8 +677,6 @@ static void __init omap_3430sdp_init(void)
 {
 	omap3430_i2c_init();
 	platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
-	omap_board_config = sdp3430_config;
-	omap_board_config_size = ARRAY_SIZE(sdp3430_config);
 	if (omap_rev() > OMAP3430_REV_ES1_0)
 		ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV2;
 	else
@@ -483,10 +691,14 @@ static void __init omap_3430sdp_init(void)
 	usb_musb_init();
 	usb_ehci_init();
 	hsmmc_init(mmc);
+	sdp3430_display_init();
 }
 
 static void __init omap_3430sdp_map_io(void)
 {
+	omap_board_config = sdp3430_config;
+	omap_board_config_size = ARRAY_SIZE(sdp3430_config);
+
 	omap2_set_globals_343x();
 	omap2_map_common_io();
 }
diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig
index 996f047..f4e450d 100644
--- a/drivers/video/omap2/Kconfig
+++ b/drivers/video/omap2/Kconfig
@@ -48,5 +48,10 @@ config PANEL_DVI_VERYHIGHRES
 
 endchoice
 
-endmenu
+config PANEL_SDP3430
+        tristate "SDP3430 Panel"
+        depends on OMAP2_DSS
+        help
+          SDP3430 LCD
 
+endmenu
diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile
index 7c75340..73ab1c0 100644
--- a/drivers/video/omap2/Makefile
+++ b/drivers/video/omap2/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_FB_OMAP2) += omapfb.o
 omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o
 
 obj-$(CONFIG_PANEL_DVI) += panel-dvi.o
+obj-$(CONFIG_PANEL_SDP3430) += panel-sdp3430.o
diff --git a/drivers/video/omap2/panel-sdp3430.c b/drivers/video/omap2/panel-sdp3430.c
new file mode 100644
index 0000000..40fe6f2
--- /dev/null
+++ b/drivers/video/omap2/panel-sdp3430.c
@@ -0,0 +1,110 @@
+/*
+ * LCD panel support for the TI 3430SDP board
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Derived from drivers/video/omap/lcd_2430sdp.c
+ *
+ * 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/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#include <mach/display.h>
+
+static int sdp3430_panel_init(struct omap_display *display)
+{
+	return 0;
+}
+
+static void sdp3430_panel_cleanup(struct omap_display *display)
+{
+}
+
+static int sdp3430_panel_enable(struct omap_display *display)
+{
+	int r = 0;
+
+	if (display->hw_config.panel_enable)
+		r = display->hw_config.panel_enable(display);
+
+	return r;
+}
+
+static void sdp3430_panel_disable(struct omap_display *display)
+{
+	if (display->hw_config.panel_disable)
+		display->hw_config.panel_disable(display);
+}
+
+static int sdp3430_panel_suspend(struct omap_display *display)
+{
+	sdp3430_panel_disable(display);
+	return 0;
+}
+
+static int sdp3430_panel_resume(struct omap_display *display)
+{
+	return sdp3430_panel_enable(display);
+}
+
+static struct omap_panel sdp3430_panel = {
+	.owner		= THIS_MODULE,
+	.name		= "panel-sdp3430",
+	.init		= sdp3430_panel_init,
+	.cleanup	= sdp3430_panel_cleanup,
+	.enable		= sdp3430_panel_enable,
+	.disable	= sdp3430_panel_disable,
+	.suspend	= sdp3430_panel_suspend,
+	.resume		= sdp3430_panel_resume,
+	/*.set_mode	= sdp3430_set_mode, */
+
+	.timings = {
+		.pixel_clock	= 19200,
+
+		.hsw		= 4,
+		.hfp		= 4,
+		.hbp		= 40,
+
+		.vsw		= 2,
+		.vfp		= 1,
+		.vbp		= 1,
+	},
+
+	.acb		= 0x28,
+
+	.config		= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+		OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC,
+
+	.x_res = 480,
+	.y_res = 640,
+	.bpp = 16,
+};
+
+
+static int __init sdp3430_panel_drv_init(void)
+{
+	omap_dss_register_panel(&sdp3430_panel);
+	return 0;
+}
+
+static void __exit sdp3430_panel_drv_exit(void)
+{
+	omap_dss_unregister_panel(&sdp3430_panel);
+}
+
+module_init(sdp3430_panel_drv_init);
+module_exit(sdp3430_panel_drv_exit);
+MODULE_LICENSE("GPL");
-- 
1.5.6.3