[PATCH 4/6] OMAP: LDP: Port the display driver to new DSS2

Tomi Valkeinen
2011-05-09T07:36:32Z

Port the old omapfb panel driver to DSS2i. This patch changes the board
file only, the driver is ported in separate patch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Stanley Miao <stanley.miao@windriver.com>
---
arch/arm/mach-omap2/board-ldp.c | 73 +++++++++++++++++++++++++++++++++-----
1 files changed, 63 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index e2ba779..2fdfd7f 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -43,6 +43,8 @@

#include <asm/delay.h>
#include <plat/usb.h>
+#include <plat/display.h>
+#include <plat/panel-generic-dpi.h>

#include "board-flash.h"
#include "mux.h"
@@ -275,19 +277,71 @@ static inline void __init ldp_init_smsc911x(void)
gpio_direction_input(eth_gpio);
}

-static struct platform_device ldp_lcd_device = {
- .name = "ldp_lcd",
- .id = -1,
+/* LCD */
+
+#define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES)
+#define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES)
+#define LCD_PANEL_RESET_GPIO 55
+#define LCD_PANEL_QVGA_GPIO 56
+
+static int ldp_panel_enable_lcd(struct omap_dss_device *dssdev)
+{
+ gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1);
+ gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 1);
+
+ return 0;
+}
+
+static void ldp_panel_disable_lcd(struct omap_dss_device *dssdev)
+{
+ gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0);
+ gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 0);
+}
+
+static struct panel_generic_dpi_data ldp_panel_data = {
+ .name = "2430sdp",
+ .platform_enable = ldp_panel_enable_lcd,
+ .platform_disable = ldp_panel_disable_lcd,
};

-static struct omap_lcd_config ldp_lcd_config __initdata = {
- .ctrl_name = "internal",
+static struct omap_dss_device ldp_lcd_device = {
+ .name = "lcd",
+ .driver_name = "generic_dpi_panel",
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .phy.dpi.data_lines = 16,
+ .data = &ldp_panel_data,
};

-static struct omap_board_config_kernel ldp_config[] __initdata = {
- { OMAP_TAG_LCD, &ldp_lcd_config },
+static struct omap_dss_device *ldp_dss_devices[] = {
+ &ldp_lcd_device,
+};
+
+static struct omap_dss_board_info ldp_dss_data = {
+ .num_devices = ARRAY_SIZE(ldp_dss_devices),
+ .devices = ldp_dss_devices,
+ .default_device = &ldp_lcd_device,
};

+static void __init ldp_display_init(void)
+{
+ int r;
+
+ struct gpio gpios[] = {
+ {LCD_PANEL_RESET_GPIO, GPIOF_OUT_INIT_HIGH, "LCD RESET"},
+ {LCD_PANEL_QVGA_GPIO, GPIOF_OUT_INIT_HIGH, "LCD QVGA"},
+ {LCD_PANEL_ENABLE_GPIO, GPIOF_OUT_INIT_LOW, "LCD ENABLE"},
+ {LCD_PANEL_BACKLIGHT_GPIO, GPIOF_OUT_INIT_LOW, "LCD BACKLIGHT"},
+ };
+
+ r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
+ if (r) {
+ pr_err("Cannot request LCD GPIOs, error %d\n", r);
+ return;
+ }
+
+ omap_display_init(&ldp_dss_data);
+}
+
static void __init omap_ldp_init_early(void)
{
omap2_init_common_infrastructure();
@@ -390,7 +444,6 @@ static struct omap2_hsmmc_info mmc[] __initdata = {

static struct platform_device *ldp_devices[] __initdata = {
&ldp_smsc911x_device,
- &ldp_lcd_device,
&ldp_gpio_keys_device,
};

@@ -441,8 +494,6 @@ static struct mtd_partition ldp_nand_partitions[] = {
static void __init omap_ldp_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
- omap_board_config = ldp_config;
- omap_board_config_size = ARRAY_SIZE(ldp_config);
ldp_init_smsc911x();
omap_i2c_init();
platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
@@ -459,6 +510,8 @@ static void __init omap_ldp_init(void)
omap2_hsmmc_init(mmc);
/* link regulators to MMC adapters */
ldp_vmmc1_supply.dev = mmc[0].dev;
+
+ ldp_display_init();
}

MACHINE_START(OMAP_LDP, "OMAP LDP board")
--
1.7.4.1