ARM: lenok: Support for display idle mode

Lenok OLED supports for display idle mode to save the power. It's called
PSM (Power Save Mode). In always on display, display will be in that state.

Change-Id: Ieaf5dd681e4934102957ee9ab6fc89bf0417650a
Signed-off-by: Devin Kim <dojip.kim@lge.com>

arch/arm/boot/dts/apq8026-lenok/apq8026-lenok-panel.dtsi

@@ -74,6 +74,21 @@
 					05 01 00 00 70 00 01 10];
 		qcom,mdss-dsi-on-command-state = "dsi_lp_mode";
 		qcom,mdss-dsi-off-command-state = "dsi_hs_mode";
+		qcom,mdss-dsi-idle-on-command = [
+					05 01 00 00 00 00 01 39
+					39 01 00 00 00 00 03 51 00 00
+					15 01 00 00 10 00 02 B0 AC
+					39 01 00 00 00 00 18 DB
+					01 29 F0 93 E7 72
+					1C 34 43 2F 84 85
+					40 65 27 28 12 12
+					12 5A 00 29 10 /*40nit*/
+					];
+		qcom,mdss-dsi-idle-on-command-state = "dsi_hs_mode";
+		qcom,mdss-dsi-idle-off-command = [
+					05 01 00 00 00 00 01 38
+					];
+		qcom,mdss-dsi-idle-off-command-state = "dsi_hs_mode";
 		qcom,mdss-dsi-h-sync-pulse = <1>;
 		qcom,mdss-dsi-traffic-mode = "burst_mode";
 		qcom,mdss-dsi-lane-map = "lane_map_0123";

arch/arm/mach-msm/lge/board-8026-lenok-gpiomux.c

@@ -121,6 +121,19 @@ static struct gpiomux_setting lcd_rst_sus_cfg = {
 	.pull = GPIOMUX_PULL_DOWN,
 };
 
+static struct gpiomux_setting lcd_en_act_cfg = {
+	.func = GPIOMUX_FUNC_GPIO,
+	.drv = GPIOMUX_DRV_8MA,
+	.pull = GPIOMUX_PULL_NONE,
+	.dir = GPIOMUX_OUT_HIGH,
+};
+
+static struct gpiomux_setting lcd_en_sus_cfg = {
+	.func = GPIOMUX_FUNC_GPIO,
+	.drv = GPIOMUX_DRV_2MA,
+	.pull = GPIOMUX_PULL_DOWN,
+};
+
 static struct msm_gpiomux_config msm_lcd_configs[] __initdata = {
 	{
 		.gpio = 25,
@@ -129,6 +142,13 @@ static struct msm_gpiomux_config msm_lcd_configs[] __initdata = {
 			[GPIOMUX_SUSPENDED] = &lcd_rst_sus_cfg,
 		},
 	},
+	{
+		.gpio = 108,
+		.settings = {
+			[GPIOMUX_ACTIVE]    = &lcd_en_act_cfg,
+			[GPIOMUX_SUSPENDED] = &lcd_en_sus_cfg,
+		},
+	},
 };
 
 static struct msm_gpiomux_config msm_blsp_configs[] __initdata = {