1 files changed, 129 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 795ffc461522..e2b912f376cc 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -40,6 +40,7 @@
 #include <plat/common.h>
 #include <plat/usb.h>
 #include <plat/mmc.h>
+#include <plat/panel-generic-dpi.h>
 #include "timer-gp.h"
 
 #include "hsmmc.h"
@@ -435,6 +436,17 @@ static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = {
                 .platform_data = &omap4_panda_twldata,
         },
 };
+
+/*
+ * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
+ * is connected as I2C slave device, and can be accessed at address 0x50
+ */
+static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
+        {
+                I2C_BOARD_INFO("eeprom", 0x50),
+        },
+};
+
 static int __init omap4_panda_i2c_init(void)
 {
         /*
@@ -444,7 +456,12 @@ static int __init omap4_panda_i2c_init(void)
         omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo,
                         ARRAY_SIZE(omap4_panda_i2c_boardinfo));
         omap_register_i2c_bus(2, 400, NULL, 0);
-        omap_register_i2c_bus(3, 400, NULL, 0);
+        /*
+         * Bus 3 is attached to the DVI port where devices like the pico DLP
+         * projector don't work reliably with 400kHz
+         */
+        omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
+                                        ARRAY_SIZE(panda_i2c_eeprom));
         omap_register_i2c_bus(4, 400, NULL, 0);
         return 0;
 }
@@ -464,12 +481,115 @@ static struct omap_board_mux board_mux[] __initdata = {
         OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
         OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
         OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
+        /* gpio 0 - TFP410 PD */
+        OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
+        /* dispc2_data23 */
+        OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data22 */
+        OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data21 */
+        OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data20 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data19 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data18 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data15 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data14 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data13 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data12 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data11 */
+        OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data10 */
+        OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data9 */
+        OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data16 */
+        OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data17 */
+        OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_hsync */
+        OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_pclk */
+        OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_vsync */
+        OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_de */
+        OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data8 */
+        OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data7 */
+        OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data6 */
+        OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data5 */
+        OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data4 */
+        OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data3 */
+        OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data2 */
+        OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data1 */
+        OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
+        /* dispc2_data0 */
+        OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
         { .reg_offset = OMAP_MUX_TERMINATOR },
 };
 #else
 #define board_mux       NULL
 #endif
 
+/* Display DVI */
+#define PANDA_DVI_TFP410_POWER_DOWN_GPIO        0
+
+static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
+{
+        gpio_set_value(dssdev->reset_gpio, 1);
+        return 0;
+}
+
+static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
+{
+        gpio_set_value(dssdev->reset_gpio, 0);
+}
+
+/* Using generic display panel */
+static struct panel_generic_dpi_data omap4_dvi_panel = {
+        .name                   = "generic",
+        .platform_enable        = omap4_panda_enable_dvi,
+        .platform_disable       = omap4_panda_disable_dvi,
+};
+
+struct omap_dss_device omap4_panda_dvi_device = {
+        .type                   = OMAP_DISPLAY_TYPE_DPI,
+        .name                   = "dvi",
+        .driver_name            = "generic_dpi_panel",
+        .data                   = &omap4_dvi_panel,
+        .phy.dpi.data_lines     = 24,
+        .reset_gpio             = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
+        .channel                = OMAP_DSS_CHANNEL_LCD2,
+};
+
+int __init omap4_panda_dvi_init(void)
+{
+        int r;
+
+        /* Requesting TFP410 DVI GPIO and disabling it, at bootup */
+        r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
+                                GPIOF_OUT_INIT_LOW, "DVI PD");
+        if (r)
+                pr_err("Failed to get DVI powerdown GPIO\n");
+
+        return r;
+}
+
+
 static void omap4_panda_hdmi_mux_init(void)
 {
         /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
@@ -525,17 +645,24 @@ static struct omap_dss_device  omap4_panda_hdmi_device = {
 };
 
 static struct omap_dss_device *omap4_panda_dss_devices[] = {
+        &omap4_panda_dvi_device,
         &omap4_panda_hdmi_device,
 };
 
 static struct omap_dss_board_info omap4_panda_dss_data = {
         .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
         .devices        = omap4_panda_dss_devices,
-        .default_device = &omap4_panda_hdmi_device,
+        .default_device = &omap4_panda_dvi_device,
 };
 
 void omap4_panda_display_init(void)
 {
+        int r;
+
+        r = omap4_panda_dvi_init();
+        if (r)
+                pr_err("error initializing panda DVI\n");
+
         omap4_panda_hdmi_mux_init();
         omap_display_init(&omap4_panda_dss_data);
 }