Add support according the SMARC Spec 1.1 [1] and provided schematics. Only the backlight and the i2c was tested due to the lack of hardware. [1] https://sget.org/standards/smarc Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> --- arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi | 134 ++++++++++++++++++ 1 file changed, 134 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi index b96684ff92e8..577048f96f22 100644 --- a/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi +++ b/arch/arm/boot/dts/imx6qdl-kontron-samx6i.dtsi @@ -70,6 +70,28 @@ vin-supply = <®_smarc_suppy>; }; + reg_smarc_lcdbklt: regulator-smarc-lcdbklt { + compatible = "regulator-fixed"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcdbklt_en>; + regulator-name = "LCD_BKLT_EN"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + gpio = <&gpio1 16 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + reg_smarc_lcdvdd: regulator-smarc-lcdvdd { + compatible = "regulator-fixed"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcdvdd_en>; + regulator-name = "LCD_VDD_EN"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + gpio = <&gpio1 17 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + reg_smarc_rtc: regulator-smarc-rtc { compatible = "regulator-fixed"; regulator-name = "V_IN_RTC_BATT"; @@ -89,6 +111,41 @@ regulator-boot-on; }; + lcd: lcd { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,imx-parallel-display"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcd>; + status = "disabled"; + + port@0 { + reg = <0>; + + lcd_in: endpoint { + }; + }; + + port@1 { + reg = <1>; + + lcd_out: endpoint { + }; + }; + }; + + lcd_backlight: lcd-backlight { + compatible = "pwm-backlight"; + pwms = <&pwm4 0 5000000>; + pwm-names = "LCD_BKLT_PWM"; + + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; + default-brightness-level = <4>; + + power-supply = <®_smarc_lcdbklt>; + status = "disabled"; + }; + i2c_intern: i2c-gpio-intern { compatible = "i2c-gpio"; pinctrl-names = "default"; @@ -99,6 +156,18 @@ #address-cells = <1>; #size-cells = <0>; }; + + i2c_lcd: i2c-gpio-lcd { + compatible = "i2c-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c_gpio_lcd>; + sda-gpios = <&gpio1 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + scl-gpios = <&gpio1 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + i2c-gpio,delay-us = <2>; /* ~100 kHz */ + #address-cells = <1>; + #size-cells = <0>; + status = "disabld"; + }; }; /* CAN0 */ @@ -308,6 +377,13 @@ >; }; + pinctrl_i2c_gpio_lcd: i2c-gpiolcdgrp { + fsl,pins = < + MX6QDL_PAD_SD1_DAT2__GPIO1_IO19 0x1b0b0 /* SCL */ + MX6QDL_PAD_SD1_DAT3__GPIO1_IO21 0x1b0b0 /* SDA */ + >; + }; + pinctrl_i2c3: i2c3grp { fsl,pins = < MX6QDL_PAD_GPIO_3__I2C3_SCL 0x4001b8b1 @@ -315,6 +391,52 @@ >; }; + pinctrl_lcd: lcdgrp { + fsl,pins = < + MX6QDL_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 0x100f1 + MX6QDL_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 0x100f1 + MX6QDL_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 0x100f1 + MX6QDL_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 0x100f1 + MX6QDL_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 0x100f1 + MX6QDL_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 0x100f1 + MX6QDL_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 0x100f1 + MX6QDL_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 0x100f1 + MX6QDL_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 0x100f1 + MX6QDL_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 0x100f1 + MX6QDL_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 0x100f1 + MX6QDL_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 0x100f1 + MX6QDL_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 0x100f1 + MX6QDL_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 0x100f1 + MX6QDL_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 0x100f1 + MX6QDL_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 0x100f1 + MX6QDL_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 0x100f1 + MX6QDL_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 0x100f1 + MX6QDL_PAD_DISP0_DAT18__IPU1_DISP0_DATA18 0x100f1 + MX6QDL_PAD_DISP0_DAT19__IPU1_DISP0_DATA19 0x100f1 + MX6QDL_PAD_DISP0_DAT20__IPU1_DISP0_DATA20 0x100f1 + MX6QDL_PAD_DISP0_DAT21__IPU1_DISP0_DATA21 0x100f1 + MX6QDL_PAD_DISP0_DAT22__IPU1_DISP0_DATA22 0x100f1 + MX6QDL_PAD_DISP0_DAT23__IPU1_DISP0_DATA23 0x100f1 + + MX6QDL_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK 0x100f1 + MX6QDL_PAD_DI0_PIN15__IPU1_DI0_PIN15 0x100f1 /* DE */ + MX6QDL_PAD_DI0_PIN2__IPU1_DI0_PIN02 0x100f1 /* HSYNC */ + MX6QDL_PAD_DI0_PIN3__IPU1_DI0_PIN03 0x100f1 /* VSYNC */ + >; + }; + + pinctrl_lcdbklt_en: lcdbkltengrp { + fsl,pins = < + MX6QDL_PAD_SD1_DAT0__GPIO1_IO16 0x1b0b1 + >; + }; + + pinctrl_lcdvdd_en: lcdvddengrp { + fsl,pins = < + MX6QDL_PAD_SD1_DAT1__GPIO1_IO17 0x1b0b0 + >; + }; + pinctrl_pcie: pciegrp { fsl,pins = < MX6QDL_PAD_EIM_D18__GPIO3_IO18 0x1b0b0 /* PCI_A_PRSNT# */ @@ -323,6 +445,12 @@ >; }; + pinctrl_pwm4: pwm4grp { + fsl,pins = < + MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1 + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1 @@ -402,6 +530,12 @@ reset-gpio = <&gpio3 13 GPIO_ACTIVE_HIGH>; }; +/* LCD_BKLT_PWM */ +&pwm4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm4>; +}; + /* SER0 */ &uart1 { pinctrl-names = "default"; -- 2.20.1
