1 files changed, 209 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 0f4d8a762a70..c936c6d7ded0 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -34,11 +34,13 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
+#include <plat/display.h>
 
 #include <plat/board.h>
 #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"
@@ -49,6 +51,8 @@
 #define GPIO_HUB_NRESET         62
 #define GPIO_WIFI_PMENA         43
 #define GPIO_WIFI_IRQ           53
+#define HDMI_GPIO_HPD 60 /* Hot plug pin for HDMI */
+#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
 
 /* wl127x BT, FM, GPS connectivity chip */
 static int wl1271_gpios[] = {46, -1, -1};
@@ -407,6 +411,12 @@ static struct regulator_init_data omap4_panda_vusb = {
         },
 };
 
+static struct regulator_init_data omap4_panda_clk32kg = {
+        .constraints = {
+                .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
+        },
+};
+
 static struct twl4030_platform_data omap4_panda_twldata = {
         .irq_base       = TWL6030_IRQ_BASE,
         .irq_end        = TWL6030_IRQ_END,
@@ -422,6 +432,7 @@ static struct twl4030_platform_data omap4_panda_twldata = {
         .vaux1          = &omap4_panda_vaux1,
         .vaux2          = &omap4_panda_vaux2,
         .vaux3          = &omap4_panda_vaux3,
+        .clk32kg        = &omap4_panda_clk32kg,
         .usb            = &omap4_usbphy_data,
 };
 
@@ -433,6 +444,17 @@ 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)
 {
         /*
@@ -442,7 +464,12 @@ 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;
 }
@@ -462,6 +489,64 @@ 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 },
 };
 
@@ -535,6 +620,128 @@ static inline void board_serial_init(void)
 }
 #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 */
+        omap_mux_init_signal("hdmi_hpd",
+                        OMAP_PIN_INPUT_PULLUP);
+        omap_mux_init_signal("hdmi_cec",
+                        OMAP_PIN_INPUT_PULLUP);
+        /* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
+        omap_mux_init_signal("hdmi_ddc_scl",
+                        OMAP_PIN_INPUT_PULLUP);
+        omap_mux_init_signal("hdmi_ddc_sda",
+                        OMAP_PIN_INPUT_PULLUP);
+}
+
+static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
+{
+        int status;
+
+        status = gpio_request_one(HDMI_GPIO_HPD, GPIOF_OUT_INIT_HIGH,
+                                                        "hdmi_gpio_hpd");
+        if (status) {
+                pr_err("Cannot request GPIO %d\n", HDMI_GPIO_HPD);
+                return status;
+        }
+        status = gpio_request_one(HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH,
+                                                        "hdmi_gpio_ls_oe");
+        if (status) {
+                pr_err("Cannot request GPIO %d\n", HDMI_GPIO_LS_OE);
+                goto error1;
+        }
+
+        return 0;
+
+error1:
+        gpio_free(HDMI_GPIO_HPD);
+
+        return status;
+}
+
+static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
+{
+        gpio_free(HDMI_GPIO_LS_OE);
+        gpio_free(HDMI_GPIO_HPD);
+}
+
+static struct omap_dss_device  omap4_panda_hdmi_device = {
+        .name = "hdmi",
+        .driver_name = "hdmi_panel",
+        .type = OMAP_DISPLAY_TYPE_HDMI,
+        .platform_enable = omap4_panda_panel_enable_hdmi,
+        .platform_disable = omap4_panda_panel_disable_hdmi,
+        .channel = OMAP_DSS_CHANNEL_DIGIT,
+};
+
+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_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);
+}
+
 static void __init omap4_panda_init(void)
 {
         int package = OMAP_PACKAGE_CBS;
@@ -553,6 +760,7 @@ static void __init omap4_panda_init(void)
         omap4_twl6030_hsmmc_init(mmc);
         omap4_ehci_init();
         usb_musb_init(&musb_board_data);
+        omap4_panda_display_init();
 }
 
 static void __init omap4_panda_map_io(void)