[PATCH 0/5] Add Support for RK3326 GameForce Chi

[PATCH 0/5] Add Support for RK3326 GameForce Chi

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Add support for the GameForce Chi [1].

The GameForce Chi has the following hardware:
Tested:
 - 3.5" dual lane 640x480 DSI display.
 - 15 GPIO based face buttons.
 - 2 ADC based face buttons.
 - 1 ADC joystick (left) connected to internal SARADC.
 - RGB LED arrays for key backlighting
 - Dual internal speakers.
 - Realtek RTL8723BS SDIO WiFi.
 - Single SDMMC slot.

Not Working (with notes in device-tree):
 - Bluetooth - missing firmware
 - 1 ADC joystick (right) connected to unknown UART based ADC.

[1] https://gameforce.fun/pages/gallery-of-gameforce-retro-gaming-handheld

Chris Morgan (5):
  dt-bindings: vendor-prefix: Add prefix for GameForce
  dt-bindings: display: Add GameForce Chi Panel
  drm/panel: st7703: Add GameForce Chi Panel Support
  dt-bindings: arm: rockchip: Add GameForce Chi
  arm64: dts: rockchip: Add GameForce Chi

 .../devicetree/bindings/arm/rockchip.yaml     |   5 +
 .../display/panel/rocktech,jh057n00900.yaml   |   2 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3326-gameforce-chi.dts     | 811 ++++++++++++++++++
 drivers/gpu/drm/panel/panel-sitronix-st7703.c |  87 ++
 6 files changed, 908 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3326-gameforce-chi.dts

-- 
2.34.1

[PATCH 1/5] dt-bindings: vendor-prefix: Add prefix for GameForce

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

GameForce is a company that produces handheld game consoles.

https://gameforce.fun/

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index b97d298b3eb6..3def72060414 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -529,6 +529,8 @@ patternProperties:
     description: FX Technology Ltd.
   "^galaxycore,.*":
     description: GalaxyCore Inc.
+  "^gameforce,.*":
+    description: GameForce
   "^gardena,.*":
     description: GARDENA GmbH
   "^gateway,.*":
-- 
2.34.1

[PATCH 2/5] dt-bindings: display: Add GameForce Chi Panel

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

The GameForce Chi panel is a panel specific to the GameForce Chi
handheld device that measures 3.5" diagonally with a resolution of
640x480.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 .../devicetree/bindings/display/panel/rocktech,jh057n00900.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml b/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml
index 6ec471284f97..4ae152cc55e0 100644
--- a/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml
+++ b/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml
@@ -22,6 +22,8 @@ properties:
     enum:
       # Anberic RG353V-V2 5.0" 640x480 TFT LCD panel
       - anbernic,rg353v-panel-v2
+      # GameForce Chi 3.5" 640x480 TFT LCD panel
+      - gameforce,chi-panel
       # Powkiddy RGB10MAX3 5.0" 720x1280 TFT LCD panel
       - powkiddy,rgb10max3-panel
       # Powkiddy RGB30 3.0" 720x720 TFT LCD panel
-- 
2.34.1

[PATCH 3/5] drm/panel: st7703: Add GameForce Chi Panel Support

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

The GameForce Chi is a handheld device with a 3.5" 640x480 ST7703 based
display panel.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 drivers/gpu/drm/panel/panel-sitronix-st7703.c | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index a3e142f156d5..7d8302cca091 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -612,6 +612,92 @@ static const struct st7703_panel_desc rgb10max3_panel_desc = {
 	.init_sequence = rgb10max3_panel_init_sequence,
 };
 
+static int gameforcechi_init_sequence(struct st7703 *ctx)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+	/*
+	 * Init sequence was supplied by the panel vendor. Panel will not
+	 * respond to commands until it is brought out of sleep mode first.
+	 */
+
+	mipi_dsi_dcs_exit_sleep_mode(dsi);
+	msleep(250);
+
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEXTC, 0xf1, 0x12, 0x83);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETMIPI, 0x31, 0x81, 0x05, 0xf9,
+			       0x0e, 0x0e, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x44, 0x25, 0x00, 0x91, 0x0a, 0x00,
+			       0x00, 0x02, 0x4f, 0xd1, 0x00, 0x00, 0x37);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER_EXT, 0x25);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_UNKNOWN_BF, 0x02, 0x11, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETRGBIF, 0x0c, 0x10, 0x0a,
+			       0x50, 0x03, 0xff, 0x00, 0x00, 0x00, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETSCR, 0x73, 0x73, 0x50, 0x50,
+			       0x00, 0x00, 0x08, 0x70, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVDC, 0x46);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0b);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETDISP, 0x00, 0x13, 0xf0);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEQ, 0x07, 0x07, 0x0b, 0x0b,
+			       0x03, 0x0b, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
+			       0xc0, 0x10);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER, 0x53, 0x00, 0x1e,
+			       0x1e, 0x77, 0xe1, 0xcc, 0xdd, 0x67, 0x77, 0x33,
+			       0x33);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETBGP, 0x10, 0x10);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVCOM, 0x6c, 0x7c);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP1, 0x08, 0x00, 0x0e, 0x00,
+			       0x00, 0xb0, 0xb1, 0x11, 0x31, 0x23, 0x28, 0x10,
+			       0xb0, 0xb1, 0x27, 0x08, 0x00, 0x04, 0x02, 0x00,
+			       0x00, 0x00, 0x00, 0x04, 0x02, 0x00, 0x00, 0x00,
+			       0x88, 0x88, 0xba, 0x60, 0x24, 0x08, 0x88, 0x88,
+			       0x88, 0x88, 0x88, 0x88, 0x88, 0xba, 0x71, 0x35,
+			       0x18, 0x88, 0x88, 0x88, 0x88, 0x88, 0x00, 0x00,
+			       0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP2, 0x97, 0x0a, 0x82, 0x02,
+			       0x13, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x80, 0x88, 0xba, 0x17, 0x53, 0x88, 0x88, 0x88,
+			       0x88, 0x88, 0x88, 0x81, 0x88, 0xba, 0x06, 0x42,
+			       0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x23, 0x10,
+			       0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGAMMA, 0x00, 0x07, 0x0b,
+			       0x27, 0x2d, 0x3f, 0x3b, 0x37, 0x05, 0x0a, 0x0b,
+			       0x0f, 0x11, 0x0f, 0x12, 0x12, 0x18, 0x00, 0x07,
+			       0x0b, 0x27, 0x2d, 0x3f, 0x3b, 0x37, 0x05, 0xa0,
+			       0x0b, 0x0f, 0x11, 0x0f, 0x12, 0x12, 0x18);
+
+	return 0;
+}
+
+static const struct drm_display_mode gameforcechi_mode = {
+	.hdisplay	= 640,
+	.hsync_start	= 640 + 40,
+	.hsync_end	= 640 + 40 + 2,
+	.htotal		= 640 + 40 + 2 + 80,
+	.vdisplay	= 480,
+	.vsync_start	= 480 + 17,
+	.vsync_end	= 480 + 17 + 5,
+	.vtotal		= 480 + 17 + 5 + 13,
+	.clock		= 23546,
+	.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	.width_mm	= 71,
+	.height_mm	= 53,
+};
+
+static const struct st7703_panel_desc gameforcechi_desc = {
+	.mode = &gameforcechi_mode,
+	.lanes = 2,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_LPM,
+	.format = MIPI_DSI_FMT_RGB888,
+	.init_sequence = gameforcechi_init_sequence,
+};
+
 static int st7703_enable(struct drm_panel *panel)
 {
 	struct st7703 *ctx = panel_to_st7703(panel);
@@ -887,6 +973,7 @@ static void st7703_remove(struct mipi_dsi_device *dsi)
 
 static const struct of_device_id st7703_of_match[] = {
 	{ .compatible = "anbernic,rg353v-panel-v2", .data = &rg353v2_desc },
+	{ .compatible = "gameforce,chi-panel", .data = &gameforcechi_desc },
 	{ .compatible = "powkiddy,rgb10max3-panel", .data = &rgb10max3_panel_desc },
 	{ .compatible = "powkiddy,rgb30-panel", .data = &rgb30panel_desc },
 	{ .compatible = "rocktech,jh057n00900", .data = &jh057n00900_panel_desc },
-- 
2.34.1

[PATCH 4/5] dt-bindings: arm: rockchip: Add GameForce Chi

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

The GameForce Chi is a handheld gaming device from GameForce powered
by the Rockchip RK3326 SoC.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index fcf7316ecd74..a5498974ceb4 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -236,6 +236,11 @@ properties:
           - const: friendlyarm,nanopc-t6
           - const: rockchip,rk3588
 
+      - description: GameForce Chi
+        items:
+          - const: gameforce,chi
+          - const: rockchip,rk3326
+
       - description: GeekBuying GeekBox
         items:
           - const: geekbuying,geekbox
-- 
2.34.1

[PATCH 5/5] arm64: dts: rockchip: Add GameForce Chi

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Add support for the GameForce Chi, which is a handheld gaming console
from GameForce with a Rockchip RK3326 SoC. The device has a 640x480
3.5" dual-lane DSI display, one analog joystick connected to the SoC
SARADC controller and a second analog joystick connected to an unknown
UART based ADC, a single SD card slot, a single USB-C port for
charging, and onboard RTL8723BS WiFi/Bluetooth combo, multiple face
buttons, and an array of R/G/B LEDs used for key backlighting.

The vendor was unable to provide details on the unknown UART based
ADC which I have documented via a comment in the device-tree, and
the vendor also does not have available Bluetooth firmware (the BT
was not previously working on the vendor's OS, this has also been
noted in a device-tree comment).

Aside from the right analog ADC joystick and bluetooth all hardware has
been tested and is working as expected.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3326-gameforce-chi.dts     | 811 ++++++++++++++++++
 2 files changed, 812 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3326-gameforce-chi.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index f906a868b71a..584ee35da180 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -10,6 +10,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-rock-pi-s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3318-a95x-z2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-anbernic-rg351m.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-anbernic-rg351v.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-gameforce-chi.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2-v11.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go3.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3326-gameforce-chi.dts b/arch/arm64/boot/dts/rockchip/rk3326-gameforce-chi.dts
new file mode 100644
index 000000000000..f7a9e763fba0
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3326-gameforce-chi.dts
@@ -0,0 +1,811 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Chris Morgan <macromorgan@hotmail.com>
+ */
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "rk3326.dtsi"
+
+/ {
+	model = "GameForce Chi";
+
+	compatible = "gameforce,chi", "rockchip,rk3326";
+
+	chassis-type = "handset";
+
+	aliases {
+		mmc0 = &sdmmc;
+		mmc1 = &sdio;
+	};
+
+	chosen {
+		stdout-path = "serial2:115200n8";
+	};
+
+	adc_joystick: adc-joystick {
+		compatible = "adc-joystick";
+		io-channels = <&saradc 0>,
+			      <&saradc 1>;
+		poll-interval = <100>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		axis@0 {
+			reg = <0>;
+			abs-flat = <10>;
+			abs-fuzz = <10>;
+			abs-range = <850 175>;
+			linux,code = <ABS_Y>;
+		};
+
+		axis@1 {
+			reg = <1>;
+			abs-flat = <10>;
+			abs-fuzz = <10>;
+			abs-range = <800 190>;
+			linux,code = <ABS_X>;
+		};
+	};
+
+	adc_keys: adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 2>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <60>;
+
+		button-1 {
+			label = "HAPPY1";
+			linux,code = <BTN_TRIGGER_HAPPY1>;
+			press-threshold-microvolt = <15000>;
+		};
+
+		button-2 {
+			label = "HAPPY2";
+			linux,code = <BTN_TRIGGER_HAPPY2>;
+			press-threshold-microvolt = <300000>;
+		};
+	};
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		power-supply = <&vcc_bl>;
+		pwms = <&pwm1 0 25000 0>;
+	};
+
+	battery: battery {
+		compatible = "simple-battery";
+		charge-full-design-microamp-hours = <3000000>;
+		charge-term-current-microamp = <300000>;
+		constant-charge-current-max-microamp = <1500000>;
+		constant-charge-voltage-max-microvolt = <4200000>;
+		factory-internal-resistance-micro-ohms = <180000>;
+		voltage-max-design-microvolt = <4250000>;
+		voltage-min-design-microvolt = <3400000>;
+
+		ocv-capacity-celsius = <20>;
+		ocv-capacity-table-0 =  <4106000 100>, <4071000 95>, <4018000 90>, <3975000 85>,
+					<3946000 80>, <3908000 75>, <3877000 70>, <3853000 65>,
+					<3834000 60>, <3816000 55>, <3802000 50>, <3788000 45>,
+					<3774000 40>, <3760000 35>, <3748000 30>, <3735000 25>,
+					<3718000 20>, <3697000 15>, <3685000 10>, <3625000 5>,
+					<3400000 0>;
+	};
+
+	gpio_leds: gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins>;
+
+		red_led: led-0 {
+			color = <LED_COLOR_ID_RED>;
+			gpios = <&gpio3 RK_PC4 GPIO_ACTIVE_HIGH>;
+		};
+
+		green_led: led-1 {
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&gpio3 RK_PC5 GPIO_ACTIVE_HIGH>;
+		};
+
+		blue_led: led-2 {
+			color = <LED_COLOR_ID_BLUE>;
+			gpios = <&gpio3 RK_PC6 GPIO_ACTIVE_HIGH>;
+		};
+
+		white_led: led-3 {
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_HIGH>;
+		};
+
+		chg_led: led-4 {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_CHARGING;
+			gpios = <&gpio3 RK_PB2 GPIO_ACTIVE_HIGH>;
+		};
+
+	};
+
+	gpio_keys: gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&btn_pins_ctrl>;
+		pinctrl-names = "default";
+
+		button-a {
+			gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;
+			label = "EAST";
+			linux,code = <BTN_EAST>;
+		};
+
+		button-b {
+			gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_LOW>;
+			label = "SOUTH";
+			linux,code = <BTN_SOUTH>;
+		};
+
+		button-down {
+			gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_LOW>;
+			label = "DPAD-DOWN";
+			linux,code = <BTN_DPAD_DOWN>;
+		};
+
+		button-home {
+			gpios = <&gpio2 RK_PA0 GPIO_ACTIVE_LOW>;
+			label = "HOME";
+			linux,code = <BTN_MODE>;
+		};
+
+		button-l1 {
+			gpios = <&gpio2 RK_PA6 GPIO_ACTIVE_LOW>;
+			label = "TL";
+			linux,code = <BTN_TL>;
+		};
+
+		button-l2 {
+			gpios = <&gpio2 RK_PA4 GPIO_ACTIVE_LOW>;
+			label = "TL2";
+			linux,code = <BTN_TL2>;
+		};
+
+		button-left {
+			gpios = <&gpio1 RK_PB6 GPIO_ACTIVE_LOW>;
+			label = "DPAD-LEFT";
+			linux,code = <BTN_DPAD_LEFT>;
+		};
+
+		button-r1 {
+			gpios = <&gpio2 RK_PA7 GPIO_ACTIVE_LOW>;
+			label = "TR";
+			linux,code = <BTN_TR>;
+		};
+
+		button-r2 {
+			gpios = <&gpio2 RK_PA5 GPIO_ACTIVE_LOW>;
+			label = "TR2";
+			linux,code = <BTN_TR2>;
+		};
+
+		button-right {
+			gpios = <&gpio1 RK_PB7 GPIO_ACTIVE_LOW>;
+			label = "DPAD-RIGHT";
+			linux,code = <BTN_DPAD_RIGHT>;
+		};
+
+		button-select {
+			gpios = <&gpio2 RK_PA3 GPIO_ACTIVE_LOW>;
+			label = "SELECT";
+			linux,code = <BTN_SELECT>;
+		};
+
+		button-start {
+			gpios = <&gpio2 RK_PA2 GPIO_ACTIVE_LOW>;
+			label = "START";
+			linux,code = <BTN_START>;
+		};
+
+		button-up {
+			gpios = <&gpio1 RK_PB4 GPIO_ACTIVE_LOW>;
+			label = "DPAD-UP";
+			linux,code = <BTN_DPAD_UP>;
+		};
+
+		button-x {
+			gpios = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
+			label = "NORTH";
+			linux,code = <BTN_NORTH>;
+		};
+
+		button-y {
+			gpios = <&gpio2 RK_PB2 GPIO_ACTIVE_LOW>;
+			label = "WEST";
+			linux,code = <BTN_WEST>;
+		};
+	};
+
+	multi-led {
+		compatible = "leds-group-multicolor";
+		color = <LED_COLOR_ID_RGB>;
+		function = LED_FUNCTION_KBD_BACKLIGHT;
+		leds = <&red_led>, <&green_led>, <&blue_led>;
+	};
+
+	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 = <&gpio2 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_2ch>;
+		};
+	};
+
+	spk_amp: audio-amplifier {
+		compatible = "simple-audio-amplifier";
+		enable-gpios = <&gpio2 RK_PB5 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&spk_amp_enable_h>;
+		pinctrl-names = "default";
+		sound-name-prefix = "Speaker Amp";
+	};
+
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rk817 1>;
+		clock-names = "ext_clock";
+		pinctrl-0 = <&wifi_enable_h>;
+		pinctrl-names = "default";
+		post-power-on-delay-ms = <200>;
+		reset-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>;
+	};
+
+	vccsys: vccsys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v8_sys";
+		regulator-always-on;
+		regulator-min-microvolt = <3800000>;
+		regulator-max-microvolt = <3800000>;
+	};
+
+	vibrator_left: pwm-vibrator-l {
+		compatible = "pwm-vibrator";
+		pwm-names = "enable";
+		pwms = <&pwm4 0 25000 0>;
+	};
+
+	vibrator_right: pwm-vibrator-r {
+		compatible = "pwm-vibrator";
+		pwm-names = "enable";
+		pwms = <&pwm5 0 25000 0>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&display_subsystem {
+	status = "okay";
+};
+
+&dsi {
+	status = "okay";
+
+	ports {
+		mipi_out: port@1 {
+			reg = <1>;
+
+			mipi_out_panel: endpoint {
+				remote-endpoint = <&mipi_in_panel>;
+			};
+		};
+	};
+
+	internal_display: panel@0 {
+		reg = <0>;
+		compatible = "gameforce,chi-panel";
+		backlight = <&backlight>;
+		iovcc-supply = <&vcc_lcd>;
+		vcc-supply = <&vcc_lcd>;
+		reset-gpios = <&gpio3 RK_PA0 GPIO_ACTIVE_LOW>;
+
+		port {
+			mipi_in_panel: endpoint {
+				remote-endpoint = <&mipi_out_panel>;
+			};
+		};
+	};
+};
+
+&dsi_dphy {
+	status = "okay";
+};
+
+&gpu {
+	mali-supply = <&vdd_logic>;
+	status = "okay";
+};
+
+&i2c0 {
+	clock-frequency = <400000>;
+	i2c-scl-falling-time-ns = <16>;
+	i2c-scl-rising-time-ns = <280>;
+	status = "okay";
+
+	rk817: pmic@20 {
+		compatible = "rockchip,rk817";
+		reg = <0x20>;
+		#clock-cells = <1>;
+		clock-names = "mclk";
+		clock-output-names = "rk808-clkout1", "xin32k";
+		clocks = <&cru SCLK_I2S1_OUT>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PC1 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-0 = <&pmic_int>, <&i2s1_2ch_mclk>;
+		pinctrl-names = "default";
+		#sound-dai-cells = <0>;
+		system-power-controller;
+		wakeup-source;
+
+		vcc1-supply = <&vccsys>;
+		vcc2-supply = <&vccsys>;
+		vcc3-supply = <&vccsys>;
+		vcc4-supply = <&vccsys>;
+		vcc5-supply = <&vccsys>;
+		vcc6-supply = <&vccsys>;
+		vcc7-supply = <&vcc_3v0>;
+		vcc8-supply = <&vccsys>;
+		vcc9-supply = <&dcdc_boost>;
+
+		regulators {
+			vdd_logic: DCDC_REG1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1150000>;
+				regulator-min-microvolt = <950000>;
+				regulator-name = "vdd_logic";
+				regulator-ramp-delay = <6001>;
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <950000>;
+				};
+			};
+
+			vdd_arm: DCDC_REG2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1350000>;
+				regulator-min-microvolt = <950000>;
+				regulator-name = "vdd_arm";
+				regulator-ramp-delay = <6001>;
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <950000>;
+				};
+			};
+
+			vcc_ddr: DCDC_REG3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-name = "vcc_ddr";
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+				};
+			};
+
+			vcc_3v0: DCDC_REG4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3000000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-name = "vcc_3v0";
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <3000000>;
+				};
+			};
+
+			vcc_1v8: LDO_REG2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1800000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vcc_1v8";
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd_1v0: LDO_REG3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <1000000>;
+				regulator-min-microvolt = <1000000>;
+				regulator-name = "vdd_1v0";
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1000000>;
+				};
+			};
+
+			vcc_3v0_pmu: LDO_REG4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3000000>;
+				regulator-min-microvolt = <3000000>;
+				regulator-name = "vcc_3v0_pmu";
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3000000>;
+				};
+			};
+
+			vccio_sd: LDO_REG5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-name = "vccio_sd";
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc_sd: LDO_REG6 {
+				regulator-boot-on;
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3300000>;
+				regulator-name = "vcc_sd";
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc_bl: LDO_REG7 {
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3300000>;
+				regulator-name = "vcc_bl";
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vcc_lcd: LDO_REG8 {
+				regulator-max-microvolt = <2800000>;
+				regulator-min-microvolt = <2800000>;
+				regulator-name = "vcc_lcd";
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <2800000>;
+				};
+			};
+
+			vcc_wifi: LDO_REG9 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-max-microvolt = <3300000>;
+				regulator-min-microvolt = <3300000>;
+				regulator-name = "vcc_wifi";
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			dcdc_boost: BOOST {
+				regulator-max-microvolt = <5000000>;
+				regulator-min-microvolt = <5000000>;
+				regulator-name = "dcdc_boost";
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			otg_switch: OTG_SWITCH {
+				regulator-name = "otg_switch";
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+		};
+
+		rk817_charger: charger {
+			monitored-battery = <&battery>;
+			rockchip,resistor-sense-micro-ohms = <10000>;
+			rockchip,sleep-enter-current-microamp = <300000>;
+			rockchip,sleep-filter-current-microamp = <100000>;
+		};
+	};
+};
+
+&i2s1_2ch {
+	status = "okay";
+};
+
+&io_domains {
+	vccio1-supply = <&vcc_3v0_pmu>;
+	vccio2-supply = <&vccio_sd>;
+	vccio3-supply = <&vcc_3v0>;
+	vccio4-supply = <&vcc_3v0>;
+	vccio5-supply = <&vcc_3v0>;
+	vccio6-supply = <&vcc_3v0>;
+	status = "okay";
+};
+
+&pinctrl {
+	bluetooth-pins {
+		bt_reset: bt-reset {
+			rockchip,pins =
+				<0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		bt_wake_dev: bt-wake-dev {
+			rockchip,pins =
+				<0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_wake_host: bt-wake-host {
+			rockchip,pins =
+				<0 RK_PA7 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	headphone {
+		hp_det: hp-det {
+			rockchip,pins =
+				<2 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	gpio-btns {
+		btn_pins_ctrl: btn-pins-ctrl {
+			rockchip,pins =
+				<1 RK_PB4 RK_FUNC_GPIO &pcfg_pull_up>,
+				<1 RK_PB5 RK_FUNC_GPIO &pcfg_pull_up>,
+				<1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_up>,
+				<1 RK_PB7 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PA7 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PB2 RK_FUNC_GPIO &pcfg_pull_up>,
+				<2 RK_PB3 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	gpio-leds {
+		led_pins: led-pins {
+			rockchip,pins =
+				<3 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>,
+				<3 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>,
+				<3 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>,
+				<3 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>,
+				<3 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pmic {
+		pmic_int: pmic-int {
+			rockchip,pins =
+				<0 RK_PC1 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		soc_slppin_gpio: soc_slppin_gpio {
+			rockchip,pins =
+				<0 RK_PA4 RK_FUNC_GPIO &pcfg_output_low>;
+		};
+
+		soc_slppin_rst: soc_slppin_rst {
+			rockchip,pins =
+				<0 RK_PA4 2 &pcfg_pull_none>;
+		};
+
+		soc_slppin_slp: soc_slppin_slp {
+			rockchip,pins =
+				<0 RK_PA4 1 &pcfg_pull_none>;
+		};
+	};
+
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins =
+				<0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	speaker {
+		spk_amp_enable_h: spk-amp-enable-h {
+			rockchip,pins =
+				<2 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&pmu_io_domains {
+	pmuio1-supply = <&vcc_1v8>;
+	pmuio2-supply = <&vcc_3v0_pmu>;
+	status = "okay";
+};
+
+&pwm1 {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
+
+&pwm5 {
+	status = "okay";
+};
+
+&saradc {
+	vref-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
+&sdio {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	disable-wp;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	no-mmc;
+	no-sd;
+	non-removable;
+	sd-uhs-sdr104;
+	status = "okay";
+};
+
+&sdmmc {
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	no-sdio;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_sd>;
+	vqmmc-supply = <&vccio_sd>;
+	status = "okay";
+};
+
+&sfc {
+	#address-cells = <1>;
+	pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus2>;
+	pinctrl-names = "default";
+	#size-cells = <0>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <108000000>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <1>;
+	};
+};
+
+&tsadc {
+	status = "okay";
+};
+
+&u2phy {
+	status = "okay";
+
+	u2phy_otg: otg-port {
+		status = "okay";
+	};
+};
+
+&usb20_otg {
+	status = "okay";
+};
+
+/*
+ * The right ADC joystick exists connected to an unknown ADC
+ * controller which can be communicated with via uart0. This ADC device
+ * is an 8-pin SOIC with no markings located right next to the left ADC
+ * joystick ribbon cable. The pinout for this ADC controller appears to
+ * be pin 1 - VCC (2.8v), pin 2 - 1.8v (clk maybe?), pin 3 - GPIO 10,
+ * pin 4 - unknown, pin 5 - unknown, pin 6 - analog in, pin 7 - analog in,
+ * pin 8 - ground. There is currently a userspace UART driver for this
+ * device but it only works with the BSP joystick driver.
+ */
+&uart0 {
+	status = "okay";
+};
+
+/* Bluetooth was not working on BSP and is not currently working on
+ * mainline due to missing firmware. Bluetooth requires removal of DMA
+ * or else it will not probe.
+ */
+&uart1 {
+	/delete-property/ dma-names;
+	/delete-property/ dmas;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth: bluetooth {
+		compatible = "realtek,rtl8723ds-bt";
+		device-wake-gpios = <&gpio0 RK_PA1 GPIO_ACTIVE_HIGH>;
+		enable-gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
+		host-wake-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&bt_reset>, <&bt_wake_dev>, <&bt_wake_host>;
+		pinctrl-names = "default";
+	};
+};
+
+&uart2 {
+	pinctrl-0 = <&uart2m1_xfer>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&vopb {
+	status = "okay";
+};
+
+&vopb_mmu {
+	status = "okay";
+};
-- 
2.34.1

Re: [PATCH 4/5] dt-bindings: arm: rockchip: Add GameForce Chi

[Conor Dooley]

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On Mon, Mar 25, 2024 at 08:49:58AM -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> The GameForce Chi is a handheld gaming device from GameForce powered
> by the Rockchip RK3326 SoC.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>

Acked-by: Conor Dooley <conor.dooley@microchip.com>

[-- Attachment #2: signature.asc --]
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Re: [PATCH 1/5] dt-bindings: vendor-prefix: Add prefix for GameForce

[Rob Herring]

On Mon, 25 Mar 2024 08:49:55 -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> GameForce is a company that produces handheld game consoles.
> 
> https://gameforce.fun/
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

Re: [PATCH 2/5] dt-bindings: display: Add GameForce Chi Panel

[Rob Herring]

On Mon, 25 Mar 2024 08:49:56 -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> The GameForce Chi panel is a panel specific to the GameForce Chi
> handheld device that measures 3.5" diagonally with a resolution of
> 640x480.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>  .../devicetree/bindings/display/panel/rocktech,jh057n00900.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

Re: [PATCH 3/5] drm/panel: st7703: Add GameForce Chi Panel Support

[Jessica Zhang]

On 3/25/2024 6:49 AM, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> The GameForce Chi is a handheld device with a 3.5" 640x480 ST7703 based
> display panel.
> 

Hi Chris,

Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com>

Thanks,

Jessica Zhang

> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>   drivers/gpu/drm/panel/panel-sitronix-st7703.c | 87 +++++++++++++++++++
>   1 file changed, 87 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> index a3e142f156d5..7d8302cca091 100644
> --- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
> @@ -612,6 +612,92 @@ static const struct st7703_panel_desc rgb10max3_panel_desc = {
>   	.init_sequence = rgb10max3_panel_init_sequence,
>   };
>   
> +static int gameforcechi_init_sequence(struct st7703 *ctx)
> +{
> +	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> +
> +	/*
> +	 * Init sequence was supplied by the panel vendor. Panel will not
> +	 * respond to commands until it is brought out of sleep mode first.
> +	 */
> +
> +	mipi_dsi_dcs_exit_sleep_mode(dsi);
> +	msleep(250);
> +
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEXTC, 0xf1, 0x12, 0x83);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETMIPI, 0x31, 0x81, 0x05, 0xf9,
> +			       0x0e, 0x0e, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
> +			       0x00, 0x00, 0x44, 0x25, 0x00, 0x91, 0x0a, 0x00,
> +			       0x00, 0x02, 0x4f, 0xd1, 0x00, 0x00, 0x37);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER_EXT, 0x25);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_UNKNOWN_BF, 0x02, 0x11, 0x00);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETRGBIF, 0x0c, 0x10, 0x0a,
> +			       0x50, 0x03, 0xff, 0x00, 0x00, 0x00, 0x00);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETSCR, 0x73, 0x73, 0x50, 0x50,
> +			       0x00, 0x00, 0x08, 0x70, 0x00);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVDC, 0x46);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0b);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETDISP, 0x00, 0x13, 0xf0);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEQ, 0x07, 0x07, 0x0b, 0x0b,
> +			       0x03, 0x0b, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
> +			       0xc0, 0x10);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER, 0x53, 0x00, 0x1e,
> +			       0x1e, 0x77, 0xe1, 0xcc, 0xdd, 0x67, 0x77, 0x33,
> +			       0x33);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETBGP, 0x10, 0x10);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVCOM, 0x6c, 0x7c);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP1, 0x08, 0x00, 0x0e, 0x00,
> +			       0x00, 0xb0, 0xb1, 0x11, 0x31, 0x23, 0x28, 0x10,
> +			       0xb0, 0xb1, 0x27, 0x08, 0x00, 0x04, 0x02, 0x00,
> +			       0x00, 0x00, 0x00, 0x04, 0x02, 0x00, 0x00, 0x00,
> +			       0x88, 0x88, 0xba, 0x60, 0x24, 0x08, 0x88, 0x88,
> +			       0x88, 0x88, 0x88, 0x88, 0x88, 0xba, 0x71, 0x35,
> +			       0x18, 0x88, 0x88, 0x88, 0x88, 0x88, 0x00, 0x00,
> +			       0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +			       0x00, 0x00, 0x00);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP2, 0x97, 0x0a, 0x82, 0x02,
> +			       0x13, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +			       0x80, 0x88, 0xba, 0x17, 0x53, 0x88, 0x88, 0x88,
> +			       0x88, 0x88, 0x88, 0x81, 0x88, 0xba, 0x06, 0x42,
> +			       0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x23, 0x10,
> +			       0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
> +			       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +			       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> +			       0x00);
> +	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGAMMA, 0x00, 0x07, 0x0b,
> +			       0x27, 0x2d, 0x3f, 0x3b, 0x37, 0x05, 0x0a, 0x0b,
> +			       0x0f, 0x11, 0x0f, 0x12, 0x12, 0x18, 0x00, 0x07,
> +			       0x0b, 0x27, 0x2d, 0x3f, 0x3b, 0x37, 0x05, 0xa0,
> +			       0x0b, 0x0f, 0x11, 0x0f, 0x12, 0x12, 0x18);
> +
> +	return 0;
> +}
> +
> +static const struct drm_display_mode gameforcechi_mode = {
> +	.hdisplay	= 640,
> +	.hsync_start	= 640 + 40,
> +	.hsync_end	= 640 + 40 + 2,
> +	.htotal		= 640 + 40 + 2 + 80,
> +	.vdisplay	= 480,
> +	.vsync_start	= 480 + 17,
> +	.vsync_end	= 480 + 17 + 5,
> +	.vtotal		= 480 + 17 + 5 + 13,
> +	.clock		= 23546,
> +	.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> +	.width_mm	= 71,
> +	.height_mm	= 53,
> +};
> +
> +static const struct st7703_panel_desc gameforcechi_desc = {
> +	.mode = &gameforcechi_mode,
> +	.lanes = 2,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +		      MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_LPM,
> +	.format = MIPI_DSI_FMT_RGB888,
> +	.init_sequence = gameforcechi_init_sequence,
> +};
> +
>   static int st7703_enable(struct drm_panel *panel)
>   {
>   	struct st7703 *ctx = panel_to_st7703(panel);
> @@ -887,6 +973,7 @@ static void st7703_remove(struct mipi_dsi_device *dsi)
>   
>   static const struct of_device_id st7703_of_match[] = {
>   	{ .compatible = "anbernic,rg353v-panel-v2", .data = &rg353v2_desc },
> +	{ .compatible = "gameforce,chi-panel", .data = &gameforcechi_desc },
>   	{ .compatible = "powkiddy,rgb10max3-panel", .data = &rgb10max3_panel_desc },
>   	{ .compatible = "powkiddy,rgb30-panel", .data = &rgb30panel_desc },
>   	{ .compatible = "rocktech,jh057n00900", .data = &jh057n00900_panel_desc },
> -- 
> 2.34.1
> 

Re: (subset) [PATCH 0/5] Add Support for RK3326 GameForce Chi

[Neil Armstrong]

Hi,

On Mon, 25 Mar 2024 08:49:54 -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Add support for the GameForce Chi [1].
> 
> The GameForce Chi has the following hardware:
> Tested:
>  - 3.5" dual lane 640x480 DSI display.
>  - 15 GPIO based face buttons.
>  - 2 ADC based face buttons.
>  - 1 ADC joystick (left) connected to internal SARADC.
>  - RGB LED arrays for key backlighting
>  - Dual internal speakers.
>  - Realtek RTL8723BS SDIO WiFi.
>  - Single SDMMC slot.
> 
> [...]

Thanks, Applied to https://gitlab.freedesktop.org/drm/misc/kernel.git (drm-misc-next)

[1/5] dt-bindings: vendor-prefix: Add prefix for GameForce
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/59237fc04ee1c4cdf62ad5dba18244713970e36f
[2/5] dt-bindings: display: Add GameForce Chi Panel
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/387974a21a63b1c7efcbc19c48b9930f6ef5ac63
[3/5] drm/panel: st7703: Add GameForce Chi Panel Support
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/4c4f33be7e4d476566246e7166c54ef175287e00

-- 
Neil

Re: (subset) [PATCH 0/5] Add Support for RK3326 GameForce Chi

[Heiko Stuebner]

On Mon, 25 Mar 2024 08:49:54 -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Add support for the GameForce Chi [1].
> 
> The GameForce Chi has the following hardware:
> Tested:
>  - 3.5" dual lane 640x480 DSI display.
>  - 15 GPIO based face buttons.
>  - 2 ADC based face buttons.
>  - 1 ADC joystick (left) connected to internal SARADC.
>  - RGB LED arrays for key backlighting
>  - Dual internal speakers.
>  - Realtek RTL8723BS SDIO WiFi.
>  - Single SDMMC slot.
> 
> [...]

Applied, thanks!

[4/5] dt-bindings: arm: rockchip: Add GameForce Chi
      commit: c1bc09960d05cfbfb94cfdfb66b4733e3ddf1638
[5/5] arm64: dts: rockchip: Add GameForce Chi
      commit: ad59da1ab997e81061ec980300fb7ce2d5e4bc5d

Best regards,
-- 
Heiko Stuebner <heiko@sntech.de>