[PATCH 3/3] ARM: dts: sun5i: Add PocketBook Touch Lux 3 support

From: Ondrej Jirman
Date: Sat Feb 22 2020 - 22:17:28 EST

What works:

- Serial console
- mmc0, mmc2 (both microSD card slots on the board)
- All buttons (gpio and lradc based)
- Power LED
- PMIC
- RTC
- USB OTG/gadgets mode
- Realtek USB WiFi
- Display backlight
- eInk display SPI NOR flash memory

Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
---
arch/arm/boot/dts/Makefile | 1 +
.../dts/sun5i-a13-pocketbook-touch-lux-3.dts | 257 ++++++++++++++++++
2 files changed, 258 insertions(+)
create mode 100644 arch/arm/boot/dts/sun5i-a13-pocketbook-touch-lux-3.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d6546d2676b9d..ef732a31e4352 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1056,6 +1056,7 @@ dtb-$(CONFIG_MACH_SUN5I) += \
sun5i-a13-licheepi-one.dtb \
sun5i-a13-olinuxino.dtb \
sun5i-a13-olinuxino-micro.dtb \
+ sun5i-a13-pocketbook-touch-lux-3.dtb \
sun5i-a13-q8-tablet.dtb \
sun5i-a13-utoo-p66.dtb \
sun5i-gr8-chip-pro.dtb \
diff --git a/arch/arm/boot/dts/sun5i-a13-pocketbook-touch-lux-3.dts b/arch/arm/boot/dts/sun5i-a13-pocketbook-touch-lux-3.dts
new file mode 100644
index 0000000000000..e9ef97c9c893b
--- /dev/null
+++ b/arch/arm/boot/dts/sun5i-a13-pocketbook-touch-lux-3.dts
@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright 2019 Ondrej Jirman <megous@xxxxxxxxxx>
+ */
+
+/dts-v1/;
+#include "sun5i-a13.dtsi"
+#include "sunxi-common-regulators.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+ model = "PocketBook Touch Lux 3";
+ compatible = "pocketbook,touch-lux-3", "allwinner,sun5i-a13";
+
+ aliases {
+ serial0 = &uart1;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ };
+
+ backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+ enable-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
+ brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
+ default-brightness-level = <8>;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ power {
+ gpios = <&pio 4 8 GPIO_ACTIVE_LOW>; /* PE8 */
+ default-state = "on";
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ autorepeat;
+ label = "GPIO Keys";
+
+ key-right {
+ label = "Right";
+ linux,code = <KEY_RIGHT>;
+ gpios = <&pio 6 9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PG9 */
+ };
+
+ key-left {
+ label = "Left";
+ linux,code = <KEY_LEFT>;
+ gpios = <&pio 6 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PG10 */
+ };
+ };
+
+ reg_1v8: regulator-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-1v8-nor-ctp";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&pio 2 15 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_1v8_nor: regulator-nor {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-nor";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&pio 2 14 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ vin-supply = <&reg_1v8>;
+ regulator-always-on;
+ };
+
+ reg_1v8_ctp: regulator-ctp {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-ctp";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&pio 2 13 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ vin-supply = <&reg_1v8>;
+ };
+
+ reg_3v3_mmc0: regulator-mmc0 {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-mmc0";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&pio 4 4 GPIO_ACTIVE_LOW>; /* PE4 */
+ vin-supply = <&reg_vcc3v3>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_dcdc2>;
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+
+ axp209: pmic@34 {
+ reg = <0x34>;
+ interrupts = <0>;
+ };
+};
+
+#include "axp209.dtsi"
+
+&i2c1 {
+ status = "okay";
+
+ pcf8563: rtc@51 {
+ compatible = "nxp,pcf8563";
+ reg = <0x51>;
+ };
+};
+
+&i2c2 {
+ status = "okay";
+
+ /* Touchpanel is connected here. */
+};
+
+&lradc {
+ vref-supply = <&reg_ldo2>;
+ status = "okay";
+
+ button-200 {
+ label = "Home";
+ linux,code = <KEY_HOME>;
+ channel = <0>;
+ voltage = <200000>;
+ };
+
+ button-400 {
+ label = "Menu";
+ linux,code = <KEY_MENU>;
+ channel = <0>;
+ voltage = <400000>;
+ };
+};
+
+&mmc0 {
+ vmmc-supply = <&reg_3v3_mmc0>;
+ bus-width = <4>;
+ cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_4bit_pc_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&otg_sram {
+ status = "okay";
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pin>;
+ status = "okay";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc3 {
+ regulator-always-on;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vdd-int-pll";
+};
+
+&reg_ldo1 {
+ regulator-name = "vdd-rtc";
+};
+
+&reg_ldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "avcc";
+};
+
+&reg_ldo3 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi";
+ /* We need this otherwise the LDO3 would overload */
+ regulator-soft-start;
+ regulator-ramp-delay = <1600>;
+};
+
+&spi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_pe_pins>, <&spi2_cs0_pe_pin>;
+ status = "okay";
+
+ epd_flash: flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "macronix,mx25u4033", "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <4000000>;
+ };
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pg_pins>;
+ status = "okay";
+};
+
+&usb_otg {
+ dr_mode = "peripheral";
+ status = "okay";
+};
+
+&battery_power_supply {
+ status = "okay";
+};
+
+&usb_power_supply {
+ status = "okay";
+};
+
+&usbphy {
+ usb1_vbus-supply = <&reg_ldo3>;
+ status = "okay";
+};
--
2.25.1