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Subject[PATCH 2/4] ARM: dts: i.MX6: imx6dl-mamoj: Add parallel display support
Date
This patch adds parallel display support for i.MX6DL Mamoj board
along with relevant backlight through pwm.

LCD power sequence is added by 'Michael Trimarchi'.

Signed-off-by: Simone CIANNI <simone.cianni@bticino.it>
Signed-off-by: Raffaele RECALCATI <raffaele.recalcati@bticino.it>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
arch/arm/boot/dts/imx6dl-mamoj.dts | 185 +++++++++++++++++++++++++++++++++++++
1 file changed, 185 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl-mamoj.dts b/arch/arm/boot/dts/imx6dl-mamoj.dts
index 6b2d29138bed..ed9050c5dbcc 100644
--- a/arch/arm/boot/dts/imx6dl-mamoj.dts
+++ b/arch/arm/boot/dts/imx6dl-mamoj.dts
@@ -6,11 +6,133 @@

/dts-v1/;

+#include <dt-bindings/gpio/gpio.h>
#include "imx6dl.dtsi"

/ {
model = "BTicino i.MX6DL Mamoj board";
compatible = "bticino,imx6dl-mamoj", "fsl,imx6dl";
+
+ backlight_lcd: backlight-lcd {
+ compatible = "pwm-backlight";
+ pwms = <&pwm3 0 25000>; /* 25000ns -> 40kHz */
+ brightness-levels = <0 4 8 16 32 64 128 160 192 224 255>;
+ default-brightness-level = <7>;
+ };
+
+ lcd_display: disp0 {
+ compatible = "fsl,imx-parallel-display";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interface-pix-fmt = "rgb24";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_lcdif>;
+ status = "okay";
+
+ port@0 {
+ reg = <0>;
+
+ lcd_display_in: endpoint {
+ remote-endpoint = <&ipu1_di0_disp0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lcd_display_out: endpoint {
+ remote-endpoint = <&lcd_panel_in>;
+ };
+ };
+ };
+
+ panel-lcd {
+ compatible = "rocktech,rk070er9427";
+ backlight = <&backlight_lcd>;
+ power-supply = <&reg_lcd_lr>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lcd_power>;
+
+ port {
+ lcd_panel_in: endpoint {
+ remote-endpoint = <&lcd_display_out>;
+ };
+ };
+ };
+
+ reg_lcd_3v3: regulator-lcd-dvdd {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-dvdd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio3 1 0>;
+ enable-active-high;
+ startup-delay-us = <21000>;
+ };
+
+ reg_lcd_power: regulator-lcd-power {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-enable";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio3 6 0>;
+ enable-active-high;
+ vin-supply = <&reg_lcd_3v3>;
+ };
+
+ reg_lcd_vgl: regulator-lcd-vgl {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-vgl";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio2 20 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <6000>;
+ enable-active-high;
+ vin-supply = <&reg_lcd_power>;
+ };
+
+ reg_lcd_vgh: regulator-lcd-vgh {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-vgh";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio3 31 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <6000>;
+ enable-active-high;
+ vin-supply = <&reg_lcd_avdd>;
+ };
+
+ reg_lcd_vcom: regulator-lcd-vcom {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-vcom";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio4 14 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <11000>;
+ enable-active-high;
+ vin-supply = <&reg_lcd_vgh>;
+ };
+
+ reg_lcd_lr: regulator-lcd-lr {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-lr";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio4 15 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ vin-supply = <&reg_lcd_vcom>;
+ };
+
+ reg_lcd_avdd: regulator-lcd-avdd {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-avdd";
+ regulator-min-microvolt = <10280000>;
+ regulator-max-microvolt = <10280000>;
+ gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <6000>;
+ enable-active-high;
+ vin-supply = <&reg_lcd_vgl>;
+ };
};

&fec {
@@ -147,6 +269,16 @@
};
};

+&ipu1_di0_disp0 {
+ remote-endpoint = <&lcd_display_in>;
+};
+
+&pwm3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm3>;
+ status = "okay";
+};
+
&uart3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart3>;
@@ -200,6 +332,59 @@
>;
};

+ pinctrl_ipu1_lcdif: pinctrlipu1lcdif { /* parallel port 24-bit */
+ fsl,pins = <
+ MX6QDL_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK 0x10 /* VDOUT_PCLK */
+ MX6QDL_PAD_DI0_PIN15__IPU1_DI0_PIN15 0x10
+ MX6QDL_PAD_DI0_PIN2__IPU1_DI0_PIN02 0x10 /* VDOUT_HSYNC */
+ MX6QDL_PAD_DI0_PIN3__IPU1_DI0_PIN03 0x10 /* VDOUT_VSYNC */
+ MX6QDL_PAD_DI0_PIN4__IPU1_DI0_PIN04 0x80000000 /* VDOUT_RESET */
+ MX6QDL_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 0x10
+ MX6QDL_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 0x10
+ MX6QDL_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 0x10
+ MX6QDL_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 0x10
+ MX6QDL_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 0x10
+ MX6QDL_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 0x10
+ MX6QDL_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 0x10
+ MX6QDL_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 0x10
+ MX6QDL_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 0x10
+ MX6QDL_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 0x10
+ MX6QDL_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 0x10
+ MX6QDL_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 0x10
+ MX6QDL_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 0x10
+ MX6QDL_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 0x10
+ MX6QDL_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 0x10
+ MX6QDL_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 0x10
+ MX6QDL_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 0x10
+ MX6QDL_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 0x10
+ MX6QDL_PAD_DISP0_DAT18__IPU1_DISP0_DATA18 0x10
+ MX6QDL_PAD_DISP0_DAT19__IPU1_DISP0_DATA19 0x10
+ MX6QDL_PAD_DISP0_DAT20__IPU1_DISP0_DATA20 0x10
+ MX6QDL_PAD_DISP0_DAT21__IPU1_DISP0_DATA21 0x10
+ MX6QDL_PAD_DISP0_DAT22__IPU1_DISP0_DATA22 0x10
+ MX6QDL_PAD_DISP0_DAT23__IPU1_DISP0_DATA23 0x10
+ >;
+ };
+
+ pinctrl_lcd_power: lcd_power {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_DA1__GPIO3_IO01 0x40013058 /* EN_LCD33V */
+ MX6QDL_PAD_SD4_DAT5__GPIO2_IO13 0x4001b0b0 /* EN_AVDD */
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x40013058 /* ENVGH */
+ MX6QDL_PAD_EIM_A18__GPIO2_IO20 0x40013058 /* ENVGL */
+ MX6QDL_PAD_EIM_DA6__GPIO3_IO06 0x40013058 /* LCD_POWER */
+ MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x40013058 /* EN_VCOM_LCD */
+ MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x40013058 /* LCD_L_R */
+ MX6QDL_PAD_EIM_DA2__GPIO3_IO02 0x40013058 /* LCD_U_D */
+ >;
+ };
+
+ pinctrl_pwm3: pwm3grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD4_DAT1__PWM3_OUT 0x1b0b1
+ >;
+ };
+
pinctrl_uart3: uart3grp {
fsl,pins = <
MX6QDL_PAD_EIM_D24__UART3_TX_DATA 0x1b0b1
--
2.14.3
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