An on-board projector named picodlp is available for OMAP4430 SDP.
Entry for this picodlp as a panel is being added in dss_devices array
to the board file.
It needs 4 GPIO pins for interfacing with host processor
and these are defined and two of them are configured in board file.
Two GPIOs power_on and display_select are configured here.
picodlp also needs an i2c client over i2c controller-2 at address 0x1b.
Signed-off-by: Mayuresh Janorkar <mayur@xxxxxx>
Signed-off-by: Mythri P K <mythripk@xxxxxx>
---
Changes since v4:
Reorder this patch to be the patch in this series
Changes since v3:
All GPIOs are requested here and assigned to init value.
Changes since v2:
Changed GPIO names to power_on, emu_done and pwrgood
arch/arm/mach-omap2/board-4430sdp.c | 55 +++++++++++++++++++++++++++++++++++
1 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index af0f59f..0366fdc 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -38,6 +38,7 @@
#include <plat/omap4-keypad.h>
#include <video/omapdss.h>
#include <video/omap-panel-nokia-dsi.h>
+#include <video/panel-picodlp.h>
#include "mux.h"
#include "hsmmc.h"
@@ -52,6 +53,8 @@
#define HDMI_GPIO_HPD 60 /* Hot plug pin for HDMI */
#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
#define LCD_BL_GPIO 27 /* LCD Backlight GPIO */
+#define OMAP4_DLP_POWER_ON_GPIO 40
+#define OMAP4_DLP_DISPLAY_SELECT_GPIO 59
/* PWM2 and TOGGLE3 register offsets */
#define LED_PWM2ON 0x03
#define LED_PWM2OFF 0x04
@@ -812,9 +815,60 @@ static struct omap_dss_device sdp4430_hdmi_device = {
.channel = OMAP_DSS_CHANNEL_DIGIT,
};
+static struct picodlp_panel_data sdp4430_picodlp_pdata = {
+ .picodlp_adapter_id = 2,
+ .emu_done_gpio = 44,
+ .pwrgood_gpio = 45,
+};
+
+static void sdp4430_picodlp_init(void)
+{
+ int status;
+ struct gpio picodlp_gpios[] = {
+ {OMAP4_DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
+ "DLP POWER ON"},
+ {OMAP4_DLP_DISPLAY_SELECT_GPIO, GPIOF_OUT_INIT_LOW,
+ "DLP DISPLAY SELECT"},
+ {sdp4430_picodlp_pdata.emu_done_gpio, GPIOF_IN,
+ "DLP EMU DONE"},
+ {sdp4430_picodlp_pdata.pwrgood_gpio, GPIOF_OUT_INIT_LOW,
+ "DLP PWRGOOD"},
+ };
+
+ status = gpio_request_array(picodlp_gpios, ARRAY_SIZE(picodlp_gpios));
+ if (status)
+ pr_err("Cannot request OMAP4_DLP_GPIOs, error %d\n", status);
+}
+
+static int sdp4430_panel_enable_picodlp(struct omap_dss_device *dssdev)
+{
+ gpio_set_value(OMAP4_DLP_DISPLAY_SELECT_GPIO, 1);
+ gpio_set_value(OMAP4_DLP_POWER_ON_GPIO, 1);
+
+ return 0;
+}
+
+static void sdp4430_panel_disable_picodlp(struct omap_dss_device *dssdev)
+{
+ gpio_set_value(OMAP4_DLP_POWER_ON_GPIO, 0);
+ gpio_set_value(OMAP4_DLP_DISPLAY_SELECT_GPIO, 0);
+}
+
+static struct omap_dss_device sdp4430_picodlp_device = {
+ .name = "picodlp",
+ .driver_name = "picodlp_panel",
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .phy.dpi.data_lines = 24,
+ .channel = OMAP_DSS_CHANNEL_LCD2,
+ .platform_enable = sdp4430_panel_enable_picodlp,
+ .platform_disable = sdp4430_panel_disable_picodlp,
+ .data = &sdp4430_picodlp_pdata,
+};
+
static struct omap_dss_device *sdp4430_dss_devices[] = {
&sdp4430_lcd_device,
&sdp4430_hdmi_device,
+ &sdp4430_picodlp_device,
};
static struct omap_dss_board_info sdp4430_dss_data = {
@@ -827,6 +881,7 @@ void omap_4430sdp_display_init(void)
{
sdp4430_lcd_init();
sdp4430_hdmi_mux_init();
+ sdp4430_picodlp_init();
omap_display_init(&sdp4430_dss_data);
}
--
1.7.1
--
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