1 files changed, 54 insertions, 6 deletions

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index a4fe8e1ee1bd..46d814ab5656 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -207,7 +207,7 @@ static struct omap_dss_device beagle_dvi_device = {
         .driver_name = "generic_dpi_panel",
         .data = &dvi_panel,
         .phy.dpi.data_lines = 24,
-        .reset_gpio = 170,
+        .reset_gpio = -EINVAL,
 };
 
 static struct omap_dss_device beagle_tv_device = {
@@ -279,6 +279,8 @@ static struct gpio_led gpio_leds[];
 static int beagle_twl_gpio_setup(struct device *dev,
                 unsigned gpio, unsigned ngpio)
 {
+        int r;
+
         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
                 mmc[0].gpio_wp = -EINVAL;
         } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
@@ -299,17 +301,63 @@ static int beagle_twl_gpio_setup(struct device *dev,
         /* REVISIT: need ehci-omap hooks for external VBUS
          * power switch and overcurrent detect
          */
+        if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
+                r = gpio_request(gpio + 1, "EHCI_nOC");
+                if (!r) {
+                        r = gpio_direction_input(gpio + 1);
+                        if (r)
+                                gpio_free(gpio + 1);
+                }
+                if (r)
+                        pr_err("%s: unable to configure EHCI_nOC\n", __func__);
+        }
 
-        gpio_request(gpio + 1, "EHCI_nOC");
-        gpio_direction_input(gpio + 1);
-
-        /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
+        /*
+         * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
+         * high / others active low)
+         */
         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
-        gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
+        if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
+                gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
+        else
+                gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
+
+        /* DVI reset GPIO is different between beagle revisions */
+        if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
+                beagle_dvi_device.reset_gpio = 129;
+        else
+                beagle_dvi_device.reset_gpio = 170;
 
         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 
+        /*
+         * gpio + 1 on Xm controls the TFP410's enable line (active low)
+         * gpio + 2 control varies depending on the board rev as follows:
+         * P7/P8 revisions(prototype): Camera EN
+         * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
+         */
+        if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+                r = gpio_request(gpio + 1, "nDVI_PWR_EN");
+                if (!r) {
+                        r = gpio_direction_output(gpio + 1, 0);
+                        if (r)
+                                gpio_free(gpio + 1);
+                }
+                if (r)
+                        pr_err("%s: unable to configure nDVI_PWR_EN\n",
+                                __func__);
+                r = gpio_request(gpio + 2, "DVI_LDO_EN");
+                if (!r) {
+                        r = gpio_direction_output(gpio + 2, 1);
+                        if (r)
+                                gpio_free(gpio + 2);
+                }
+                if (r)
+                        pr_err("%s: unable to configure DVI_LDO_EN\n",
+                                __func__);
+        }
+
         return 0;
 }