1 files changed, 94 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap/base/0003-omap3-beaglexm-fix-power-on-of-DVI.patch b/extras/recipes-kernel/linux/linux-omap/base/0003-omap3-beaglexm-fix-power-on-of-DVI.patch
new file mode 100644
index 00000000..90446e40
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap/base/0003-omap3-beaglexm-fix-power-on-of-DVI.patch
@@ -0,0 +1,94 @@
+From 4004c3e68b973f4cb736048b1e90ee3b511f5865 Mon Sep 17 00:00:00 2001
+From: Koen Kooi <koen@beagleboard.org>
+Date: Wed, 12 Jan 2011 00:23:29 +0000
+Subject: [PATCH 03/28] omap3: beaglexm: fix power on of DVI
+TFP410 DVI chip is used to provide display out.
+This chip is controlled by 2 lines:
+LDO which supplies the power is controlled over gpio + 2
+and the enable of the chip itself is done over gpio + 1
+NOTE: the LDO is necessary for LED, serial blocks as well.
+gpio + 1 was used to sense USB overcurrent in vanilla beagle.
+Without this fix, the display would not function as the LDO
+remains shut down.
+[nm@ti.com: split up, added descriptive changelogs]
+Signed-off-by: Nishanth Menon <nm@ti.com>
+Signed-off-by: Koen Kooi <koen@beagleboard.org>
+Signed-off-by: Tony Lindgren <tony@atomide.com>
+---
+ arch/arm/mach-omap2/board-omap3beagle.c |   42 ++++++++++++++++++++++++++++--
+ 1 files changed, 39 insertions(+), 3 deletions(-)
+diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
+index 673deb9..2ed8040 100644
+--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
+@@ -273,6 +273,8 @@ 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) ||
+@@ -293,9 +295,16 @@ static int beagle_twl_gpio_setup(struct device *dev,
+        /* REVISIT: need ehci-omap hooks for external VBUS
+         * power switch and overcurrent detect
+         */
+-
+-       gpio_request(gpio + 1, "EHCI_nOC");
+-       gpio_direction_input(gpio + 1);
+       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__);
+       }
+ 
+        /*
+         * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
+@@ -316,6 +325,33 @@ static int beagle_twl_gpio_setup(struct device *dev,
+        /* 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;
+ }
+ 
+-- 
+1.6.6.1

diff --git a/extras/recipes-kernel/linux/linux-omap/base/0003-omap3-beaglexm-fix-power-on-of-DVI.patch b/extras/recipes-kernel/linux/linux-omap/base/0003-omap3-beaglexm-fix-power-on-of-DVI.patch new file mode 100644 index 00000000..90446e40 --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap/base/0003-omap3-beaglexm-fix-power-on-of-DVI.patch
@@ -0,0 +1,94 @@
	1	From 4004c3e68b973f4cb736048b1e90ee3b511f5865 Mon Sep 17 00:00:00 2001
	2	From: Koen Kooi <koen@beagleboard.org>
	3	Date: Wed, 12 Jan 2011 00:23:29 +0000
	4	Subject: [PATCH 03/28] omap3: beaglexm: fix power on of DVI
	5
	6	TFP410 DVI chip is used to provide display out.
	7	This chip is controlled by 2 lines:
	8	LDO which supplies the power is controlled over gpio + 2
	9	and the enable of the chip itself is done over gpio + 1
	10	NOTE: the LDO is necessary for LED, serial blocks as well.
	11
	12	gpio + 1 was used to sense USB overcurrent in vanilla beagle.
	13
	14	Without this fix, the display would not function as the LDO
	15	remains shut down.
	16
	17	[nm@ti.com: split up, added descriptive changelogs]
	18	Signed-off-by: Nishanth Menon <nm@ti.com>
	19	Signed-off-by: Koen Kooi <koen@beagleboard.org>
	20	Signed-off-by: Tony Lindgren <tony@atomide.com>
	21	---
	22	arch/arm/mach-omap2/board-omap3beagle.c \| 42 ++++++++++++++++++++++++++++--
	23	1 files changed, 39 insertions(+), 3 deletions(-)
	24
	25	diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
	26	index 673deb9..2ed8040 100644
	27	--- a/arch/arm/mach-omap2/board-omap3beagle.c
	28	+++ b/arch/arm/mach-omap2/board-omap3beagle.c
	29	@@ -273,6 +273,8 @@ static struct gpio_led gpio_leds[];
	30	static int beagle_twl_gpio_setup(struct device *dev,
	31	unsigned gpio, unsigned ngpio)
	32	{
	33	+ int r;
	34	+
	35	if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
	36	mmc[0].gpio_wp = -EINVAL;
	37	} else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) \|\|
	38	@@ -293,9 +295,16 @@ static int beagle_twl_gpio_setup(struct device *dev,
	39	/* REVISIT: need ehci-omap hooks for external VBUS
	40	* power switch and overcurrent detect
	41	*/
	42	-
	43	- gpio_request(gpio + 1, "EHCI_nOC");
	44	- gpio_direction_input(gpio + 1);
	45	+ if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
	46	+ r = gpio_request(gpio + 1, "EHCI_nOC");
	47	+ if (!r) {
	48	+ r = gpio_direction_input(gpio + 1);
	49	+ if (r)
	50	+ gpio_free(gpio + 1);
	51	+ }
	52	+ if (r)
	53	+ pr_err("%s: unable to configure EHCI_nOC\n", __func__);
	54	+ }
	55
	56	/*
	57	* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
	58	@@ -316,6 +325,33 @@ static int beagle_twl_gpio_setup(struct device *dev,
	59	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
	60	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
	61
	62	+ /*
	63	+ * gpio + 1 on Xm controls the TFP410's enable line (active low)
	64	+ * gpio + 2 control varies depending on the board rev as follows:
	65	+ * P7/P8 revisions(prototype): Camera EN
	66	+ * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
	67	+ */
	68	+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
	69	+ r = gpio_request(gpio + 1, "nDVI_PWR_EN");
	70	+ if (!r) {
	71	+ r = gpio_direction_output(gpio + 1, 0);
	72	+ if (r)
	73	+ gpio_free(gpio + 1);
	74	+ }
	75	+ if (r)
	76	+ pr_err("%s: unable to configure nDVI_PWR_EN\n",
	77	+ __func__);
	78	+ r = gpio_request(gpio + 2, "DVI_LDO_EN");
	79	+ if (!r) {
	80	+ r = gpio_direction_output(gpio + 2, 1);
	81	+ if (r)
	82	+ gpio_free(gpio + 2);
	83	+ }
	84	+ if (r)
	85	+ pr_err("%s: unable to configure DVI_LDO_EN\n",
	86	+ __func__);
	87	+ }
	88	+
	89	return 0;
	90	}
	91
	92	--
	93	1.6.6.1
	94