[PATCH v2 00/18] ARM: dts: imx6q-apalis: Misc improvements and newly added carrier

[PATCH v2 00/18] ARM: dts: imx6q-apalis: Misc improvements and newly added carrier

[Max Krummenacher]

From: Max Krummenacher <max.krummenacher@toradex.com>


This is a general update of the Apalis iMX6 device tree files.

The Toradex Apalis family is composed of a SoM that can be plugged on
various carrier boards, with carrier boards allowing multiple optional
accessories (e.g. display, camera, ...).

The device tree sources are structured into a SoM dtsi and a carrier dts
which then includes the SoM dtsi. The SoM dtsi defines and enables the
functionality self contained on the SoM and prepares for functionality
provided by the carrier HW or accessories, so that the carrier dts then
can enable or amend nodes provided. Accessories are enabled in overlays
depending on HW configuration.

The series improves the existing Apalis carrier board device trees and
adds a new device trees for the Ixora V1.2 carrier board.

Improvements:
- Specifies GPIO line names for use with libgpiod.
- Disables optional accessories. They would be enabled in overlays
  depending on HW configuration.
- Lower power consumption after poweroff.
- Move more functionality into the SoM dtsi file to reduce code
  duplication.
- General cleanup to adhere to dtbs bindings and missed alphabetically
  ordering.
- PWM backlight for backlights with inverted logic on its PWM input.

Fixes:
- STMPE ADC not functional due to wrong node name in dts.

Adds:
- imx6q-apalis-ixora-v1.2.dtb: used for a Apalis iMX6 mated in an Ixora
  V1.2 carrier board.
- Adds disable support for a OV5640 MIPI-CSI2 Camera and a ADV7280
  Video ADC on a parallel video input.


Changes in v2:
- Moved cleanup for things added in earlier commits of the series to
  the those commit rather than cleaning up later.
- Added reviewed-by tags
- Fixed '-' vs. '_' in node name as pointed out by Fabio
- Added "adv,force-bt656-4" property as suggested by Fabio.
- Added commit "ARM: dts: imx6q-apalis: move gpio-keys to SoM dtsi"
  and followed that in the commit adding the Ixora V1.2.
- Rebased on top of imx/dt, 5.19-rc1

Denys Drozdov (1):
  ARM: dts: imx6q-apalis: Clean-up sd card support

Max Krummenacher (11):
  dt-bindings: arm: fsl: Add carrier for toradex,apalis-imx6q
  Revert "ARM: dts: imx6qdl-apalis: Avoid underscore in node name"
  ARM: dts: imx6q-apalis: Add gpio-line-names
  ARM: dts: imx6q-apalis: Command pmic to standby for poweroff
  ARM: dts: imx6q-apalis: Move Atmel MXT touch ctrl to SoM dtsi
  ARM: dts: imx6q-apalis: move gpio-keys to SoM dtsi
  ARM: dts: imx6q-apalis: Disable HDMI
  ARM: dts: imx6q-apalis: Add support for Toradex Ixora V1.2 carrier
    boards
  ARM: dts: imx6q-apalis: backlight pwm: Simplify inverted backlight
  ARM: dts: imx6q-apalis: backlight pwm: Adapt brightness steps
  ARM: dts: imx6q-apalis: Cleanup

Oleksandr Suvorov (6):
  ARM: dts: imx6q-apalis: Move parallel rgb interface to SoM dtsi
  ARM: dts: imx6q-apalis: Move pinmux groups to SoM dtsi
  ARM: dts: imx6q-apalis: Add LVDS panel support
  ARM: dts: imx6q-apalis: Disable stmpe touchscreen
  ARM: dts: imx6q-apalis: Add ov5640 mipi csi camera
  ARM: dts: imx6q-apalis: Add adv7280 video input

 .../devicetree/bindings/arm/fsl.yaml          |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/imx6q-apalis-eval.dts       | 127 +---
 arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts | 263 +-------
 arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts | 276 ++++++++
 arch/arm/boot/dts/imx6q-apalis-ixora.dts      | 113 +---
 arch/arm/boot/dts/imx6qdl-apalis.dtsi         | 638 ++++++++++++++----
 7 files changed, 837 insertions(+), 582 deletions(-)
 create mode 100644 arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts

-- 
2.20.1

[PATCH v2 15/18] ARM: dts: imx6q-apalis: Add support for Toradex Ixora V1.2 carrier boards

[Max Krummenacher]

From: Max Krummenacher <max.krummenacher@toradex.com>

The Ixora V1.2 carrier board adds SW relevant new features compared to
the V1.1 version.

- An I2C EEPROM is added.
- The SD card slot got a switchable 3.3V supply.
- Pull ups on the SD card signals are not assembled to faciliate 1.8V
  speed modes.
- The CAN transceivers got a switchable 3.3V supply.

Add a new device tree and, as the differences are so small rework the
device tree for V1.1 to include the V1.2 device tree and adjust as
needed.
Drop adding the toradex,apalis_imx6q-ixora to the dtb compatible to
adhere to the binding yaml document.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>

---

Changes in v2:
- removed gpio-keys node. This has been moved to the SoM dtsi in v2

 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts | 178 +----------
 arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts | 276 ++++++++++++++++++
 3 files changed, 289 insertions(+), 166 deletions(-)
 create mode 100644 arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d3f1e3075178..428d758fc411 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -550,6 +550,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-apalis-eval.dtb \
 	imx6q-apalis-ixora.dtb \
 	imx6q-apalis-ixora-v1.1.dtb \
+	imx6q-apalis-ixora-v1.2.dtb \
 	imx6q-apf6dev.dtb \
 	imx6q-arm2.dtb \
 	imx6q-b450v3.dtb \
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
index 2d0324103804..44637d606e61 100644
--- a/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
@@ -5,187 +5,33 @@
  * Copyright 2011 Linaro Ltd.
  */
 
-/dts-v1/;
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/input/input.h>
-#include <dt-bindings/interrupt-controller/irq.h>
-#include "imx6q.dtsi"
-#include "imx6qdl-apalis.dtsi"
+#include "imx6q-apalis-ixora-v1.2.dts"
 
 / {
 	model = "Toradex Apalis iMX6Q/D Module on Ixora Carrier Board V1.1";
-	compatible = "toradex,apalis_imx6q-ixora-v1.1",
-		     "toradex,apalis_imx6q-ixora", "toradex,apalis_imx6q",
+	compatible = "toradex,apalis_imx6q-ixora-v1.1", "toradex,apalis_imx6q",
 		     "fsl,imx6q";
 
-	aliases {
-		i2c0 = &i2c1;
-		i2c1 = &i2c3;
-		i2c2 = &i2c2;
-		rtc0 = &rtc_i2c;
-		rtc1 = &snvs_rtc;
-	};
-
-	chosen {
-		stdout-path = "serial0:115200n8";
-	};
-
-	gpio-keys {
-		compatible = "gpio-keys";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_gpio_keys>;
-
-		wakeup {
-			label = "Wake-Up";
-			gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
-			linux,code = <KEY_WAKEUP>;
-			debounce-interval = <10>;
-			wakeup-source;
-		};
-	};
-
-	leds {
-		compatible = "gpio-leds";
-
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_leds_ixora>;
-
-		led4-green {
-			label = "LED_4_GREEN";
-			gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
-		};
 
-		led4-red {
-			label = "LED_4_RED";
-			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
-		};
-
-		led5-green {
-			label = "LED_5_GREEN";
-			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
-		};
-
-		led5-red {
-			label = "LED_5_RED";
-			gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
-		};
-	};
 };
 
+/delete-node/ &eeprom;
+/delete-node/ &reg_3v3_vmmc;
+/delete-node/ &reg_can1_supply;
+/delete-node/ &reg_can2_supply;
+
 &can1 {
-	status = "okay";
+	/delete-property/ xceiver-supply;
 };
 
 &can2 {
-	status = "okay";
-};
-
-/* I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
-&i2c1 {
-	status = "okay";
-
-	/* M41T0M6 real time clock on carrier board */
-	rtc_i2c: rtc@68 {
-		compatible = "st,m41t0";
-		reg = <0x68>;
-	};
-};
-
-/*
- * I2C3_SDA/SCL (CAM) on MXM3 pin 201/203 (e.g. camera sensor on carrier
- * board)
- */
-&i2c3 {
-	status = "okay";
-};
-
-&pcie {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_reset_moci>;
-	/* active-high meaning opposite of regular PERST# active-low polarity */
-	reset-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
-	reset-gpio-active-high;
-	status = "okay";
-};
-
-&pwm1 {
-	status = "okay";
-};
-
-&pwm2 {
-	status = "okay";
-};
-
-&pwm3 {
-	status = "okay";
-};
-
-&pwm4 {
-	status = "okay";
-};
-
-&reg_usb_otg_vbus {
-	status = "okay";
-};
-
-&reg_usb_host_vbus {
-	status = "okay";
-};
-
-&sata {
-	status = "okay";
-};
-
-&sound_spdif {
-	status = "okay";
-};
-
-&spdif {
-	status = "okay";
-};
-
-&uart1 {
-	status = "okay";
-};
-
-&uart2 {
-	status = "okay";
-};
-
-&uart4 {
-	status = "okay";
-};
-
-&uart5 {
-	status = "okay";
-};
-
-&usbh1 {
-	vbus-supply = <&reg_usb_host_vbus>;
-	status = "okay";
-};
-
-&usbotg {
-	vbus-supply = <&reg_usb_otg_vbus>;
-	status = "okay";
+	/delete-property/ xceiver-supply;
 };
 
 /* MMC1 */
 &usdhc1 {
+	/delete-property/ cap-power-off-card;
+	/delete-property/ pinctrl-1;
+	/delete-property/ vmmc-supply;
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_usdhc1_4bit &pinctrl_mmc_cd>;
-	bus-width = <4>;
-	status = "okay";
-};
-
-&iomuxc {
-	pinctrl_leds_ixora: ledsixoragrp {
-		fsl,pins = <
-			MX6QDL_PAD_SD2_DAT1__GPIO1_IO14 0x1b0b0
-			MX6QDL_PAD_SD2_DAT3__GPIO1_IO12 0x1b0b0
-			MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x1b0b0
-			MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x1b0b0
-		>;
-	};
 };
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts
new file mode 100644
index 000000000000..f9f7d99bd4db
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.2.dts
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2014-2022 Toradex
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6q.dtsi"
+#include "imx6qdl-apalis.dtsi"
+
+/ {
+	model = "Toradex Apalis iMX6Q/D Module on Ixora Carrier Board V1.2";
+	compatible = "toradex,apalis_imx6q-ixora-v1.2", "toradex,apalis_imx6q",
+		     "fsl,imx6q";
+
+	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c3;
+		i2c2 = &i2c2;
+		rtc0 = &rtc_i2c;
+		rtc1 = &snvs_rtc;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_leds_ixora>;
+
+		led4-green {
+			gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
+			label = "LED_4_GREEN";
+		};
+
+		led4-red {
+			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+			label = "LED_4_RED";
+		};
+
+		led5-green {
+			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+			label = "LED_5_GREEN";
+		};
+
+		led5-red {
+			gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+			label = "LED_5_RED";
+		};
+	};
+
+	reg_3v3_vmmc: regulator-3v3-vmmc {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio2 0 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_enable_3v3_vmmc>;
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "3v3_vmmc";
+		startup-delay-us = <100>;
+	};
+
+	reg_can1_supply: regulator-can1-supply {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio2 3 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_enable_can1_power>;
+		regulator-name = "can1_supply";
+	};
+
+	reg_can2_supply: regulator-can2-supply {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio3 15 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_enable_can2_power>;
+		regulator-name = "can2_supply";
+	};
+};
+
+&can1 {
+	xceiver-supply = <&reg_can1_supply>;
+	status = "okay";
+};
+
+&can2 {
+	xceiver-supply = <&reg_can2_supply>;
+	status = "okay";
+};
+
+&gpio1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart24_forceoff>;
+
+	/*
+	 * uart-2-4-on-x21-enable-hog enables the UART transceiver for Apalis
+	 * UART2 and UART3. If one wants to disable the transceiver force
+	 * the GPIO to output-low, if one wants to control the transceiver
+	 * from user space delete the hog node.
+	 */
+	uart-2-4-on-x21-enable-hog {
+		gpio-hog;
+		gpios = <11 GPIO_ACTIVE_HIGH>; /* MXM3 180 */
+		output-high;
+	};
+};
+
+/* I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
+&i2c1 {
+	status = "okay";
+
+	/* M41T0M6 real time clock on carrier board */
+	rtc_i2c: rtc@68 {
+		compatible = "st,m41t0";
+		reg = <0x68>;
+	};
+
+	eeprom: eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+};
+
+/*
+ * I2C3_SDA/SCL (CAM) on MXM3 pin 201/203 (e.g. camera sensor on carrier
+ * board)
+ */
+&i2c3 {
+	status = "okay";
+};
+
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_reset_moci>;
+	/* active-high meaning opposite of regular PERST# active-low polarity */
+	reset-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+	reset-gpio-active-high;
+	status = "okay";
+};
+
+&pwm1 {
+	status = "okay";
+};
+
+&pwm2 {
+	status = "okay";
+};
+
+&pwm3 {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
+
+&reg_usb_host_vbus {
+	status = "okay";
+};
+
+&reg_usb_otg_vbus {
+	status = "okay";
+};
+
+&sata {
+	status = "okay";
+};
+
+&sound_spdif {
+	status = "okay";
+};
+
+&spdif {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart4 {
+	status = "okay";
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&usbh1 {
+	vbus-supply = <&reg_usb_host_vbus>;
+	status = "okay";
+};
+
+&usbotg {
+	vbus-supply = <&reg_usb_otg_vbus>;
+	status = "okay";
+};
+
+/* MMC1 */
+&usdhc1 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&pinctrl_usdhc1_4bit &pinctrl_mmc_cd>;
+	pinctrl-1 = <&pinctrl_usdhc1_4bit_sleep &pinctrl_mmc_cd_sleep>;
+	bus-width = <4>;
+	cap-power-off-card;
+	vmmc-supply = <&reg_3v3_vmmc>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_enable_3v3_vmmc: enable3v3vmmcgrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x1b0b0
+		>;
+	};
+
+	pinctrl_enable_can1_power: enablecan1powergrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_D3__GPIO2_IO03 0x1b0b0
+		>;
+	};
+
+	pinctrl_enable_can2_power: enablecan2powergrp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_DA15__GPIO3_IO15 0x1b0b0
+		>;
+	};
+
+	pinctrl_uart24_forceoff: uart24forceoffgrp {
+		fsl,pins = <
+			MX6QDL_PAD_SD2_CMD__GPIO1_IO11 0x1b0b0
+		>;
+	};
+
+	pinctrl_leds_ixora: ledsixoragrp {
+		fsl,pins = <
+			MX6QDL_PAD_SD2_DAT1__GPIO1_IO14 0x1b0b0
+			MX6QDL_PAD_SD2_DAT3__GPIO1_IO12 0x1b0b0
+			MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x1b0b0
+			MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x1b0b0
+		>;
+	};
+
+	pinctrl_mmc_cd_sleep: mmccdslpgrp {
+		fsl,pins = <
+			 /* MMC1 CD */
+			MX6QDL_PAD_DI0_PIN4__GPIO4_IO20 0x0
+		>;
+	};
+
+	pinctrl_usdhc1_4bit_sleep: usdhc1-4bitslpgrp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_CMD__SD1_CMD     0x3000
+			MX6QDL_PAD_SD1_CLK__SD1_CLK     0x3000
+			MX6QDL_PAD_SD1_DAT0__SD1_DATA0  0x3000
+			MX6QDL_PAD_SD1_DAT1__SD1_DATA1  0x3000
+			MX6QDL_PAD_SD1_DAT2__SD1_DATA2  0x3000
+			MX6QDL_PAD_SD1_DAT3__SD1_DATA3  0x3000
+		>;
+	};
+};
-- 
2.20.1

Re: [PATCH v2 00/18] ARM: dts: imx6q-apalis: Misc improvements and newly added carrier

[Shawn Guo]

On Wed, Jun 15, 2022 at 01:49:48PM +0200, Max Krummenacher wrote:
> From: Max Krummenacher <max.krummenacher@toradex.com>
> 
> 
> This is a general update of the Apalis iMX6 device tree files.
> 
> The Toradex Apalis family is composed of a SoM that can be plugged on
> various carrier boards, with carrier boards allowing multiple optional
> accessories (e.g. display, camera, ...).
> 
> The device tree sources are structured into a SoM dtsi and a carrier dts
> which then includes the SoM dtsi. The SoM dtsi defines and enables the
> functionality self contained on the SoM and prepares for functionality
> provided by the carrier HW or accessories, so that the carrier dts then
> can enable or amend nodes provided. Accessories are enabled in overlays
> depending on HW configuration.
> 
> The series improves the existing Apalis carrier board device trees and
> adds a new device trees for the Ixora V1.2 carrier board.
> 
> Improvements:
> - Specifies GPIO line names for use with libgpiod.
> - Disables optional accessories. They would be enabled in overlays
>   depending on HW configuration.
> - Lower power consumption after poweroff.
> - Move more functionality into the SoM dtsi file to reduce code
>   duplication.
> - General cleanup to adhere to dtbs bindings and missed alphabetically
>   ordering.
> - PWM backlight for backlights with inverted logic on its PWM input.
> 
> Fixes:
> - STMPE ADC not functional due to wrong node name in dts.
> 
> Adds:
> - imx6q-apalis-ixora-v1.2.dtb: used for a Apalis iMX6 mated in an Ixora
>   V1.2 carrier board.
> - Adds disable support for a OV5640 MIPI-CSI2 Camera and a ADV7280
>   Video ADC on a parallel video input.
> 
> 
> Changes in v2:
> - Moved cleanup for things added in earlier commits of the series to
>   the those commit rather than cleaning up later.
> - Added reviewed-by tags
> - Fixed '-' vs. '_' in node name as pointed out by Fabio
> - Added "adv,force-bt656-4" property as suggested by Fabio.
> - Added commit "ARM: dts: imx6q-apalis: move gpio-keys to SoM dtsi"
>   and followed that in the commit adding the Ixora V1.2.
> - Rebased on top of imx/dt, 5.19-rc1
> 
> Denys Drozdov (1):
>   ARM: dts: imx6q-apalis: Clean-up sd card support
> 
> Max Krummenacher (11):
>   dt-bindings: arm: fsl: Add carrier for toradex,apalis-imx6q
>   Revert "ARM: dts: imx6qdl-apalis: Avoid underscore in node name"
>   ARM: dts: imx6q-apalis: Add gpio-line-names
>   ARM: dts: imx6q-apalis: Command pmic to standby for poweroff
>   ARM: dts: imx6q-apalis: Move Atmel MXT touch ctrl to SoM dtsi
>   ARM: dts: imx6q-apalis: move gpio-keys to SoM dtsi
>   ARM: dts: imx6q-apalis: Disable HDMI
>   ARM: dts: imx6q-apalis: Add support for Toradex Ixora V1.2 carrier
>     boards
>   ARM: dts: imx6q-apalis: backlight pwm: Simplify inverted backlight
>   ARM: dts: imx6q-apalis: backlight pwm: Adapt brightness steps
>   ARM: dts: imx6q-apalis: Cleanup
> 
> Oleksandr Suvorov (6):
>   ARM: dts: imx6q-apalis: Move parallel rgb interface to SoM dtsi
>   ARM: dts: imx6q-apalis: Move pinmux groups to SoM dtsi
>   ARM: dts: imx6q-apalis: Add LVDS panel support
>   ARM: dts: imx6q-apalis: Disable stmpe touchscreen
>   ARM: dts: imx6q-apalis: Add ov5640 mipi csi camera
>   ARM: dts: imx6q-apalis: Add adv7280 video input

Applied all, thanks!