ARM: tegra: cardhu: Backlight Correction

Corrected measured backlight linearization table.

Bug 827366
Bug 852481

Change-Id: I09a2952f684c4637d0da500c93bd3f1b5ca05daa
Reviewed-on: http://git-master/r/42692
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>

1 files changed, 26 insertions, 21 deletions

diff --git a/arch/arm/mach-tegra/board-cardhu-panel.c b/arch/arm/mach-tegra/board-cardhu-panel.c
index 4ed1ca3e779d..68f86f11195f 100644
--- a/arch/arm/mach-tegra/board-cardhu-panel.c
+++ b/arch/arm/mach-tegra/board-cardhu-panel.c
@@ -80,27 +80,27 @@ static tegra_dc_bl_output cardhu_bl_output_measured = {
 	24, 25, 26, 27, 28, 29, 30, 31,
 	32, 33, 34, 35, 36, 37, 38, 39,
 	40, 41, 42, 43, 44, 45, 46, 47,
-	48, 49, 50, 51, 52, 53, 54, 55,
-	56, 57, 58, 59, 60, 61, 62, 63,
-	64, 65, 66, 67, 68, 69, 70, 71,
-	72, 73, 74, 75, 76, 77, 78, 79,
-	80, 81, 82, 83, 84, 85, 86, 87,
-	88, 89, 90, 91, 92, 93, 94, 95,
-	96, 97, 98, 99, 100, 101, 102, 103,
-	104, 105, 106, 107, 108, 109, 110, 111,
+	48, 49, 49, 50, 51, 52, 53, 54,
+	55, 56, 57, 58, 59, 60, 61, 62,
+	63, 64, 65, 66, 67, 68, 69, 70,
+	70, 72, 73, 74, 75, 76, 77, 78,
+	79, 80, 81, 82, 83, 84, 85, 86,
+	87, 88, 89, 90, 91, 92, 93, 94,
+	95, 96, 97, 98, 99, 100, 101, 102,
+	103, 104, 105, 106, 107, 108, 110, 111,
 	112, 113, 114, 115, 116, 117, 118, 119,
-	120, 121, 122, 123, 124, 125, 126, 127,
-	128, 129, 130, 131, 132, 133, 134, 135,
-	136, 137, 138, 139, 140, 141, 142, 143,
-	144, 145, 146, 147, 148, 149, 150, 151,
-	152, 153, 154, 155, 156, 157, 158, 159,
-	160, 161, 162, 163, 164, 165, 166, 167,
-	168, 169, 170, 171, 172, 173, 174, 175,
-	176, 177, 178, 179, 180, 181, 182, 183,
-	184, 185, 186, 187, 188, 189, 190, 191,
-	192, 193, 194, 195, 196, 197, 198, 199,
-	200, 201, 202, 203, 204, 205, 206, 207,
-	208, 209, 210, 211, 212, 213, 214, 215,
+	120, 121, 122, 123, 124, 124, 125, 126,
+	127, 128, 129, 130, 131, 132, 133, 133,
+	134, 135, 136, 137, 138, 139, 140, 141,
+	142, 143, 144, 145, 146, 147, 148, 148,
+	149, 150, 151, 152, 153, 154, 155, 156,
+	157, 158, 159, 160, 161, 162, 163, 164,
+	165, 166, 167, 168, 169, 170, 171, 172,
+	173, 174, 175, 176, 177, 179, 180, 181,
+	182, 184, 185, 186, 187, 188, 189, 190,
+	191, 192, 193, 194, 195, 196, 197, 198,
+	199, 200, 201, 202, 203, 204, 205, 206,
+	207, 208, 209, 211, 212, 213, 214, 215,
 	216, 217, 218, 219, 220, 221, 222, 223,
 	224, 225, 226, 227, 228, 229, 230, 231,
 	232, 233, 234, 235, 236, 237, 238, 239,
@@ -108,11 +108,16 @@ static tegra_dc_bl_output cardhu_bl_output_measured = {
 	248, 249, 250, 251, 252, 253, 254, 255
 };
 
-static p_tegra_dc_bl_output bl_output = cardhu_bl_output_measured;
+static p_tegra_dc_bl_output bl_output;
 
 static int cardhu_backlight_init(struct device *dev) {
 	int ret;
 
+	bl_output = cardhu_bl_output_measured;
+
+	if (WARN_ON(ARRAY_SIZE(cardhu_bl_output_measured) == 256))
+		pr_err("bl_output array does not have 256 elements\n");
+
 #ifndef CONFIG_TEGRA_CARDHU_DSI
 	tegra_gpio_disable(cardhu_bl_pwm);