[PATCHv2 4/6] OMAP: LDP: Port the display driver to new DSS2

Tomi Valkeinen
2011-09-12T11:21:09Z

Port the old omapfb panel driver to DSS2. This patch changes the board
file only, the driver is ported in separate patch.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Stanley Miao <stanley.miao@windriver.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
arch/arm/mach-omap2/board-ldp.c | 123 +++++++++++++++++++++++++++++++++++----
1 files changed, 112 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index 218764c..76f02a9 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -27,6 +27,7 @@
#include <linux/io.h>
#include <linux/smsc911x.h>
#include <linux/mmc/host.h>
+#include <linux/gpio.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -34,7 +35,6 @@
#include <asm/mach/map.h>

#include <plat/mcspi.h>
-#include <mach/gpio.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/gpmc.h>
@@ -44,6 +44,9 @@
#include <plat/usb.h>
#include <plat/gpmc-smsc911x.h>

+#include <video/omapdss.h>
+#include <video/omap-panel-generic-dpi.h>
+
#include "board-flash.h"
#include "mux.h"
#include "hsmmc.h"
@@ -180,29 +183,108 @@ static inline void __init ldp_init_smsc911x(void)
gpmc_smsc911x_init(&smsc911x_cfg);
}

-static struct platform_device ldp_lcd_device = {
- .name = "ldp_lcd",
- .id = -1,
+/* LCD */
+
+static int ldp_backlight_gpio;
+static int ldp_lcd_enable_gpio;
+
+#define LCD_PANEL_RESET_GPIO 55
+#define LCD_PANEL_QVGA_GPIO 56
+
+static int ldp_panel_enable_lcd(struct omap_dss_device *dssdev)
+{
+ if (gpio_is_valid(ldp_lcd_enable_gpio))
+ gpio_direction_output(ldp_lcd_enable_gpio, 1);
+ if (gpio_is_valid(ldp_backlight_gpio))
+ gpio_direction_output(ldp_backlight_gpio, 1);
+
+ return 0;
+}
+
+static void ldp_panel_disable_lcd(struct omap_dss_device *dssdev)
+{
+ if (gpio_is_valid(ldp_lcd_enable_gpio))
+ gpio_direction_output(ldp_lcd_enable_gpio, 0);
+ if (gpio_is_valid(ldp_backlight_gpio))
+ gpio_direction_output(ldp_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 = 18,
+ .data = &ldp_panel_data,
+};
+
+static struct omap_dss_device *ldp_dss_devices[] = {
+ &ldp_lcd_device,
};

-static struct omap_board_config_kernel ldp_config[] __initdata = {
- { OMAP_TAG_LCD, &ldp_lcd_config },
+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;
+
+ static struct gpio gpios[] __initdata = {
+ {LCD_PANEL_RESET_GPIO, GPIOF_OUT_INIT_HIGH, "LCD RESET"},
+ {LCD_PANEL_QVGA_GPIO, GPIOF_OUT_INIT_HIGH, "LCD QVGA"},
+ };
+
+ 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();
omap2_init_common_devices(NULL, NULL);
}

+static int ldp_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio)
+{
+ int r;
+
+ struct gpio gpios[] = {
+ {gpio + 7 , GPIOF_OUT_INIT_LOW, "LCD ENABLE"},
+ {gpio + 15, 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);
+ ldp_backlight_gpio = -EINVAL;
+ ldp_lcd_enable_gpio = -EINVAL;
+ return r;
+ }
+
+ ldp_backlight_gpio = gpio + 15;
+ ldp_lcd_enable_gpio = gpio + 7;
+
+ return 0;
+}
+
static struct twl4030_gpio_platform_data ldp_gpio_data = {
.gpio_base = OMAP_MAX_GPIO_LINES,
.irq_base = TWL4030_GPIO_IRQ_BASE,
.irq_end = TWL4030_GPIO_IRQ_END,
+ .setup = ldp_twl_gpio_setup,
};

static struct regulator_consumer_supply ldp_vmmc1_supply[] = {
@@ -244,10 +326,31 @@ static struct regulator_init_data ldp_vaux1 = {
.consumer_supplies = ldp_vaux1_supplies,
};

+static struct regulator_consumer_supply ldp_vpll2_supplies[] = {
+ REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
+ REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
+};
+
+static struct regulator_init_data ldp_vpll2 = {
+ .constraints = {
+ .name = "VDVI",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .apply_uV = true,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .valid_ops_mask = REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(ldp_vpll2_supplies),
+ .consumer_supplies = ldp_vpll2_supplies,
+};
+
static struct twl4030_platform_data ldp_twldata = {
/* platform_data for children goes here */
.vmmc1 = &ldp_vmmc1,
.vaux1 = &ldp_vaux1,
+ .vpll2 = &ldp_vpll2,
.gpio = &ldp_gpio_data,
.keypad = &ldp_kp_twl4030_data,
};
@@ -273,7 +376,6 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
};

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

@@ -318,8 +420,6 @@ 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));
@@ -330,6 +430,7 @@ static void __init omap_ldp_init(void)
ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS, 0);

omap2_hsmmc_init(mmc);
+ ldp_display_init();
}

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