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>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
arch/arm/mach-omap2/board-4430sdp.c | 52 +++++++++++++++++++++++++++++++++++
1 files changed, 52 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 187fcae..d3874a6 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -39,6 +39,7 @@
#include <plat/omap4-keypad.h>
#include <video/omapdss.h>
#include <video/omap-panel-nokia-dsi.h>
+#include <video/omap-panel-picodlp.h>
#include <linux/wl12xx.h>
#include "mux.h"
@@ -54,6 +55,7 @@
#define HDMI_GPIO_HPD 60 /* Hot plug pin for HDMI */
#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
#define DISPLAY_SEL_GPIO 59 /* LCD2/PicoDLP switch */
+#define DLP_POWER_ON_GPIO 40
#define GPIO_WIFI_PMENA 54
#define GPIO_WIFI_IRQ 53
@@ -758,10 +760,59 @@ 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 r;
+ const struct gpio picodlp_gpios[] = {
+ {DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
+ "DLP POWER ON"},
+ {sdp4430_picodlp_pdata.emu_done_gpio, GPIOF_IN,
+ "DLP EMU DONE"},
+ {sdp4430_picodlp_pdata.pwrgood_gpio, GPIOF_OUT_INIT_LOW,
+ "DLP PWRGOOD"},
+ };
+
+ r = gpio_request_array(picodlp_gpios, ARRAY_SIZE(picodlp_gpios));
+ if (r)
+ pr_err("Cannot request PicoDLP GPIOs, error %d\n", r);
+}
+
+static int sdp4430_panel_enable_picodlp(struct omap_dss_device *dssdev)
+{
+ gpio_set_value(DISPLAY_SEL_GPIO, 0);
+ gpio_set_value(DLP_POWER_ON_GPIO, 1);
+
+ return 0;
+}
+
+static void sdp4430_panel_disable_picodlp(struct omap_dss_device *dssdev)
+{
+ gpio_set_value(DLP_POWER_ON_GPIO, 0);
+ gpio_set_value(DISPLAY_SEL_GPIO, 1);
+}
+
+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_lcd2_device,
&sdp4430_hdmi_device,
+ &sdp4430_picodlp_device,
};
static struct omap_dss_board_info sdp4430_dss_data = {
@@ -782,6 +833,7 @@ static void omap_4430sdp_display_init(void)
sdp4430_lcd_init();
sdp4430_hdmi_mux_init();
+ sdp4430_picodlp_init();
omap_display_init(&sdp4430_dss_data);
}
--
1.7.4.1
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