arm64: dts: rockchip: add Anbernic RG-ARC S and RG-ARC D

Add support for the Anbernic RG-ARC S and RG-ARC D devices. These
devices feature the following:
 - Rockchip RK3566 SoC
 - 4 inch 480x640 display (rotated)
 - Goodix multi-touch (ARC D only, untested as I lack the device)
 - 1GB (ARC S) or 2GB (ARC D) of RAM
 - 2 SDMMC slots
 - eMMC (ARC D only)
 - Realtek 8821CS WiFi/Bluetooth
 - External stereo speakers
 - 6 face buttons (A, B, C, X, Y, Z) along with a D-Pad and start and
   select buttons.
 - A PWM vibrator.

Note that the Goodix touchscreen on I2C2 is not defined, as I lack
the necessary hardware to confirm it works correctly with the mainline
driver.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20240123212111.202146-5-macroalpha82@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index a7b30e11beaf41e994d467e084a6a680774eab7d..647be86ea8a6b672131dd2fc515dcb11172f848d 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -71,6 +71,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399pro-rock-pi-n10.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg-arc-d.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg-arc-s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg353p.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg353ps.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg353v.dtb

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc-d.dts b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc-d.dts
new file mode 100644 (file)
index 0000000..795fbed
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc-d.dts
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "rk3566-anbernic-rg-arc.dtsi"
+
+/ {
+       model = "Anbernic RG ARC-D";
+       compatible = "anbernic,rg-arc-d", "rockchip,rk3566";
+
+       aliases {
+               mmc0 = &sdhci;
+               mmc1 = &sdmmc0;
+               mmc2 = &sdmmc1;
+               mmc3 = &sdmmc2;
+       };
+};
+
+/*
+ * Unknown Goodix touchscreen at i2c2 0x14. Needs testing before it's
+ * enabled.
+ */
+&i2c2 {
+       pinctrl-0 = <&i2c2m1_xfer>;
+       pinctrl-names = "default";
+       status = "okay";
+};
+
+&sdhci {
+       bus-width = <8>;
+       mmc-hs200-1_8v;
+       non-removable;
+       pinctrl-0 = <&emmc_bus8>, <&emmc_clk>, <&emmc_cmd>,
+                   <&emmc_datastrobe>, <&emmc_rstnout>;
+       pinctrl-names = "default";
+       vmmc-supply = <&vcc_3v3>;
+       vqmmc-supply = <&vcc_1v8>;
+       status = "okay";
+};

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc-s.dts b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc-s.dts
new file mode 100644 (file)
index 0000000..6264a8c
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc-s.dts
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "rk3566-anbernic-rg-arc.dtsi"
+
+/ {
+       model = "Anbernic RG ARC-S";
+       compatible = "anbernic,rg-arc-s", "rockchip,rk3566";
+
+       aliases {
+               mmc1 = &sdmmc0;
+               mmc2 = &sdmmc1;
+               mmc3 = &sdmmc2;
+       };
+};

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc.dtsi
new file mode 100644 (file)
index 0000000..a4a60e4
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rg-arc.dtsi
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "rk3566-anbernic-rgxx3.dtsi"
+
+/ {
+       backlight: backlight {
+               compatible = "pwm-backlight";
+               power-supply = <&vcc_sys>;
+               pwms = <&pwm4 0 25000 0>;
+       };
+
+       battery: battery {
+               compatible = "simple-battery";
+               charge-full-design-microamp-hours = <3472000>;
+               charge-term-current-microamp = <300000>;
+               constant-charge-current-max-microamp = <2000000>;
+               constant-charge-voltage-max-microvolt = <4200000>;
+               factory-internal-resistance-micro-ohms = <117000>;
+               voltage-max-design-microvolt = <4172000>;
+               voltage-min-design-microvolt = <3400000>;
+
+               ocv-capacity-celsius = <20>;
+               ocv-capacity-table-0 =  <4172000 100>, <4054000 95>, <3984000 90>, <3926000 85>,
+                                       <3874000 80>, <3826000 75>, <3783000 70>, <3746000 65>,
+                                       <3714000 60>, <3683000 55>, <3650000 50>, <3628000 45>,
+                                       <3612000 40>, <3600000 35>, <3587000 30>, <3571000 25>,
+                                       <3552000 20>, <3525000 15>, <3492000 10>, <3446000 5>,
+                                       <3400000 0>;
+       };
+
+       /* Channels reversed for both headphones and speakers. */
+       sound {
+               compatible = "simple-audio-card";
+               pinctrl-0 = <&hp_det>;
+               pinctrl-names = "default";
+               simple-audio-card,name = "rk817_ext";
+               simple-audio-card,aux-devs = <&spk_amp>;
+               simple-audio-card,format = "i2s";
+               simple-audio-card,hp-det-gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
+               simple-audio-card,mclk-fs = <256>;
+               simple-audio-card,widgets =
+                       "Microphone", "Mic Jack",
+                       "Headphone", "Headphones",
+                       "Speaker", "Internal Speakers";
+               simple-audio-card,routing =
+                       "MICL", "Mic Jack",
+                       "Headphones", "HPOL",
+                       "Headphones", "HPOR",
+                       "Internal Speakers", "Speaker Amp OUTL",
+                       "Internal Speakers", "Speaker Amp OUTR",
+                       "Speaker Amp INL", "HPOL",
+                       "Speaker Amp INR", "HPOR";
+               simple-audio-card,pin-switches = "Internal Speakers";
+
+               simple-audio-card,codec {
+                       sound-dai = <&rk817>;
+               };
+
+               simple-audio-card,cpu {
+                       sound-dai = <&i2s1_8ch>;
+               };
+       };
+
+       spk_amp: audio-amplifier {
+               compatible = "simple-audio-amplifier";
+               enable-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_HIGH>;
+               pinctrl-0 = <&spk_amp_enable_h>;
+               pinctrl-names = "default";
+               sound-name-prefix = "Speaker Amp";
+       };
+};
+
+&cru {
+       assigned-clocks = <&pmucru CLK_RTC_32K>, <&cru PLL_GPLL>,
+                         <&pmucru PLL_PPLL>, <&cru PLL_VPLL>;
+       assigned-clock-rates = <32768>, <1200000000>,
+                              <200000000>, <128000000>;
+};
+
+&dsi_dphy0 {
+       status = "okay";
+};
+
+&dsi0 {
+       status = "okay";
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       ports {
+               dsi0_in: port@0 {
+                       reg = <0>;
+                       dsi0_in_vp1: endpoint {
+                               remote-endpoint = <&vp1_out_dsi0>;
+                       };
+               };
+
+               dsi0_out: port@1 {
+                       reg = <1>;
+                       mipi_out_panel: endpoint {
+                               remote-endpoint = <&mipi_in_panel>;
+                       };
+               };
+       };
+
+       panel: panel@0 {
+               compatible = "anbernic,rg-arc-panel", "sitronix,st7701";
+               reg = <0>;
+               backlight = <&backlight>;
+               IOVCC-supply = <&vcc3v3_lcd0_n>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&lcd_rst>;
+               reset-gpios = <&gpio4 RK_PA0 GPIO_ACTIVE_HIGH>;
+               rotation = <90>;
+               VCC-supply = <&vcc3v3_lcd0_n>;
+
+               port {
+                       mipi_in_panel: endpoint {
+                               remote-endpoint = <&mipi_out_panel>;
+                       };
+               };
+       };
+};
+
+/*
+ * Device uses a non-standard six button layout for a gamepad with X,
+ * Y, and Z on the top row of buttons and A, B, and C under the bottom
+ * row.
+ */
+&gpio_keys_control {
+       button-a {
+               gpios = <&gpio3 RK_PC3 GPIO_ACTIVE_LOW>;
+               label = "A";
+               linux,code = <BTN_A>;
+       };
+
+       button-b {
+               gpios = <&gpio3 RK_PC2 GPIO_ACTIVE_LOW>;
+               label = "B";
+               linux,code = <BTN_B>;
+       };
+
+       button-c {
+               gpios = <&gpio3 RK_PA2 GPIO_ACTIVE_LOW>;
+               label = "C";
+               linux,code = <BTN_C>;
+       };
+
+       button-left {
+               gpios = <&gpio3 RK_PA6 GPIO_ACTIVE_LOW>;
+               label = "DPAD-LEFT";
+               linux,code = <BTN_DPAD_LEFT>;
+       };
+
+       button-r1 {
+               gpios = <&gpio3 RK_PB4 GPIO_ACTIVE_LOW>;
+               label = "TR";
+               linux,code = <BTN_TR>;
+       };
+
+       button-r2 {
+               gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_LOW>;
+               label = "TR2";
+               linux,code = <BTN_TR2>;
+       };
+
+       button-right {
+               gpios = <&gpio3 RK_PA5 GPIO_ACTIVE_LOW>;
+               label = "DPAD-RIGHT";
+               linux,code = <BTN_DPAD_RIGHT>;
+       };
+
+       button-x {
+               gpios = <&gpio3 RK_PC0 GPIO_ACTIVE_LOW>;
+               label = "X";
+               linux,code = <BTN_X>;
+       };
+
+       button-y {
+               gpios = <&gpio3 RK_PC1 GPIO_ACTIVE_LOW>;
+               label = "Y";
+               linux,code = <BTN_Y>;
+       };
+
+       button-z {
+               gpios = <&gpio3 RK_PA1 GPIO_ACTIVE_LOW>;
+               label = "Z";
+               linux,code = <BTN_Z>;
+       };
+};
+
+&pinctrl {
+       audio-amplifier {
+               spk_amp_enable_h: spk-amp-enable-h {
+                       rockchip,pins =
+                               <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       gpio-lcd {
+               lcd_rst: lcd-rst {
+                       rockchip,pins =
+                               <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       headphone {
+               hp_det: hp-det {
+                       rockchip,pins =
+                               <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+};
+
+&pwm4 {
+       status = "okay";
+};
+
+&rk817 {
+       rk817_charger: charger {
+               monitored-battery = <&battery>;
+               rockchip,resistor-sense-micro-ohms = <10000>;
+               rockchip,sleep-enter-current-microamp = <300000>;
+               rockchip,sleep-filter-current-microamp = <100000>;
+       };
+};
+
+&vp1 {
+       vp1_out_dsi0: endpoint@ROCKCHIP_VOP2_EP_MIPI0 {
+               reg = <ROCKCHIP_VOP2_EP_MIPI0>;
+               remote-endpoint = <&dsi0_in_vp1>;
+       };
+};