meta-ti/recipes-kernel/linux/linux-omap-psp-2.6.32/cam/0046-omap3beagle-camera-Cleanup-regulator-usage.patch

From d3ea23ea580848bb5e0ed423db4d914661cd1d7d Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Mon, 12 Jul 2010 15:53:44 -0500
Subject: [PATCH 46/75] omap3beagle: camera: Cleanup regulator usage

We were missing the point of regulator abstraction layer.

Camera board file shouldn't be aware of what vaux is using, but
just asking for a specific power supply (for cam_1v8 and cam_2v8).

How is that mapped before, is something that the regulator machine
should figure out.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
 arch/arm/mach-omap2/board-omap3beagle-camera.c |   50 ++++++++++++------------
 arch/arm/mach-omap2/board-omap3beagle.c        |   24 +++++-------
 2 files changed, 35 insertions(+), 39 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3beagle-camera.c b/arch/arm/mach-omap2/board-omap3beagle-camera.c
index befa7d4..c91529d 100644
--- a/arch/arm/mach-omap2/board-omap3beagle-camera.c
+++ b/arch/arm/mach-omap2/board-omap3beagle-camera.c
@@ -51,8 +51,8 @@
 
 #define LEOPARD_RESET_GPIO	98
 
-static struct regulator *beagle_mt9v113_1_8v1;
-static struct regulator *beagle_mt9v113_1_8v2;
+static struct regulator *cam_1v8_reg;
+static struct regulator *cam_2v8_reg;
 
 /* Arbitrary memory handling limit */
 #define MT9V113_MAX_FRAME_SIZE	PAGE_ALIGN(640 * 480 * 4)
@@ -148,10 +148,10 @@ static int mt9v113_power_set(struct v4l2_int_device *s, enum v4l2_power power)
 	case V4L2_POWER_OFF:
 		isp_set_xclk(vdev->cam->isp, 0, CAM_USE_XCLKA);
 
-		if (regulator_is_enabled(beagle_mt9v113_1_8v1))
-			regulator_disable(beagle_mt9v113_1_8v1);
-		if (regulator_is_enabled(beagle_mt9v113_1_8v2))
-			regulator_disable(beagle_mt9v113_1_8v2);
+		if (regulator_is_enabled(cam_1v8_reg))
+			regulator_disable(cam_1v8_reg);
+		if (regulator_is_enabled(cam_2v8_reg))
+			regulator_disable(cam_2v8_reg);
 
 		break;
 
@@ -162,10 +162,10 @@ static int mt9v113_power_set(struct v4l2_int_device *s, enum v4l2_power power)
 		gpio_set_value(LEOPARD_RESET_GPIO, 0);
 
 		/* turn on VDD */
-		regulator_enable(beagle_mt9v113_1_8v1);
+		regulator_enable(cam_1v8_reg);
 		mdelay(1);
 		/* turn on VDD_IO */
-		regulator_enable(beagle_mt9v113_1_8v2);
+		regulator_enable(cam_2v8_reg);
 		mdelay(50);
 
 		/* Enable EXTCLK */
@@ -201,24 +201,24 @@ struct mt9v113_platform_data mt9v113_pdata = {
 
 static int beagle_cam_probe(struct platform_device *pdev)
 {
-	beagle_mt9v113_1_8v1 = regulator_get(&pdev->dev, "vaux3_1");
-	if (IS_ERR(beagle_mt9v113_1_8v1)) {
-		dev_err(&pdev->dev, "vaux3_1 regulator missing\n");
-		return PTR_ERR(beagle_mt9v113_1_8v1);
+	cam_1v8_reg = regulator_get(&pdev->dev, "cam_1v8");
+	if (IS_ERR(cam_1v8_reg)) {
+		dev_err(&pdev->dev, "cam_1v8 regulator missing\n");
+		return PTR_ERR(cam_1v8_reg);
 	}
 
-	beagle_mt9v113_1_8v2 = regulator_get(&pdev->dev, "vaux4_1");
-	if (IS_ERR(beagle_mt9v113_1_8v2)) {
-		dev_err(&pdev->dev, "vaux4_1 regulator missing\n");
-		regulator_put(beagle_mt9v113_1_8v1);
-		return PTR_ERR(beagle_mt9v113_1_8v2);
+	cam_2v8_reg = regulator_get(&pdev->dev, "cam_2v8");
+	if (IS_ERR(cam_2v8_reg)) {
+		dev_err(&pdev->dev, "cam_2v8 regulator missing\n");
+		regulator_put(cam_1v8_reg);
+		return PTR_ERR(cam_2v8_reg);
 	}
 
 	if (gpio_request(LEOPARD_RESET_GPIO, "cam_rst") != 0) {
 		dev_err(&pdev->dev, "Could not request GPIO %d",
 			LEOPARD_RESET_GPIO);
-		regulator_put(beagle_mt9v113_1_8v2);
-		regulator_put(beagle_mt9v113_1_8v1);
+		regulator_put(cam_2v8_reg);
+		regulator_put(cam_1v8_reg);
 		return -ENODEV;
 	}
 
@@ -266,13 +266,13 @@ static int beagle_cam_probe(struct platform_device *pdev)
 
 static int beagle_cam_remove(struct platform_device *pdev)
 {
-	if (regulator_is_enabled(beagle_mt9v113_1_8v1))
-		regulator_disable(beagle_mt9v113_1_8v1);
-	regulator_put(beagle_mt9v113_1_8v1);
+	if (regulator_is_enabled(cam_1v8_reg))
+		regulator_disable(cam_1v8_reg);
+	regulator_put(cam_1v8_reg);
 
-	if (regulator_is_enabled(beagle_mt9v113_1_8v2))
-		regulator_disable(beagle_mt9v113_1_8v2);
-	regulator_put(beagle_mt9v113_1_8v2);
+	if (regulator_is_enabled(cam_2v8_reg))
+		regulator_disable(cam_2v8_reg);
+	regulator_put(cam_2v8_reg);
 
 	gpio_free(LEOPARD_RESET_GPIO);
 
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index d4b0b0a..b0da483 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -414,18 +414,14 @@ static struct platform_device beagle_cam_device = {
 	.id		= -1,
 };
 
-static struct regulator_consumer_supply beagle_vaux3_supplies[] = {
-	{
-		.supply		= "vaux3_1",
-		.dev		= &beagle_cam_device.dev,
-	},
+static struct regulator_consumer_supply beagle_vaux3_supply = {
+	.supply		= "cam_1v8",
+	.dev		= &beagle_cam_device.dev,
 };
 
-static struct regulator_consumer_supply beagle_vaux4_supplies[] = {
-	{
-		.supply		= "vaux4_1",
-		.dev		= &beagle_cam_device.dev,
-	},
+static struct regulator_consumer_supply beagle_vaux4_supply = {
+	.supply		= "cam_2v8",
+	.dev		= &beagle_cam_device.dev,
 };
 
 /* VAUX3 for CAM_1V8 */
@@ -439,8 +435,8 @@ static struct regulator_init_data beagle_vaux3 = {
 		.valid_ops_mask		= REGULATOR_CHANGE_MODE
 					| REGULATOR_CHANGE_STATUS,
 	},
-	.num_consumer_supplies	= ARRAY_SIZE(beagle_vaux3_supplies),
-	.consumer_supplies	= beagle_vaux3_supplies,
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &beagle_vaux3_supply,
 };
 
 /* VAUX4 for CAM_2V8 */
@@ -454,8 +450,8 @@ static struct regulator_init_data beagle_vaux4 = {
 		.valid_ops_mask		= REGULATOR_CHANGE_MODE
 					| REGULATOR_CHANGE_STATUS,
 	},
-	.num_consumer_supplies	= ARRAY_SIZE(beagle_vaux4_supplies),
-	.consumer_supplies	= beagle_vaux4_supplies,
+	.num_consumer_supplies	= 1,
+	.consumer_supplies	= &beagle_vaux4_supply,
 };
 
 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
-- 
1.6.6.1