[PATCH V2 0/4] rockchip: Add Powkiddy RK2023

[PATCH V2 0/4] rockchip: Add Powkiddy RK2023

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Add support for the Powkiddy RK2023, which is extremely similar to
existing devices from Anbernic.

Changes since V1:
 - Necessary clock changes have been accepted to mainline, so removed
   from this series.
   https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git/commit/?id=f1db0865b4628d5e2e85347350c077a71f0629d2
 - Combined Powkiddy RK3566 devices in devicetree documentation.
   Dropped ack from binding as this change is vastly different than
   the previous update.
 - Updated panel driver to hold panel in reset status after unprepare.

Chris Morgan (4):
  dt-bindings: display: panel: Update NewVision NV3051D compatibles
  nv3051d: Add Powkiddy RK2023 Panel Support
  dt-bindings: arm: rockchip: Add Powkiddy RK2023
  arm64: dts: rockchip: add Powkiddy RK2023

 .../devicetree/bindings/arm/rockchip.yaml     |   6 +-
 .../display/panel/newvision,nv3051d.yaml      |   2 +-
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3566-powkiddy-rk2023.dts   | 161 ++++++++++++++++++
 .../gpu/drm/panel/panel-newvision-nv3051d.c   |  57 +++++--
 5 files changed, 213 insertions(+), 14 deletions(-)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts

-- 
2.34.1

[PATCH V2 1/4] dt-bindings: display: panel: Update NewVision NV3051D compatibles

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Update the NewVision NV3051D compatible strings by adding a new panel,
the powkiddy,rk2023-panel, and removing another entry, the
anbernic,rg353v-panel. The rg353v-panel is exactly identical to the
rg353p-panel and is not currently in use by any existing device tree.
The rk2023-panel is similar to the rg353p-panel but has slightly
different timings.

I originally wrote the driver checking for the newvision,nv3051d
compatible string which worked fine when there was only 1 panel type.
When I added support for the 351v-panel I *should* have changed how the
compatible string was handled, but instead I simply added a check in the
probe function to look for the secondary string of
"anbernic,rg351v-panel". Now that I am adding the 3rd panel type of
"powkiddy,rk2023-panel" I am correcting the driver to do it the right
way by checking for the specific compatibles.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 .../devicetree/bindings/display/panel/newvision,nv3051d.yaml    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml b/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml
index cce775a87f87..7a634fbc465e 100644
--- a/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml
+++ b/Documentation/devicetree/bindings/display/panel/newvision,nv3051d.yaml
@@ -21,7 +21,7 @@ properties:
       - enum:
           - anbernic,rg351v-panel
           - anbernic,rg353p-panel
-          - anbernic,rg353v-panel
+          - powkiddy,rk2023-panel
       - const: newvision,nv3051d
 
   reg: true
-- 
2.34.1

[PATCH V2 2/4] nv3051d: Add Powkiddy RK2023 Panel Support

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Refactor the driver to add support for the powkiddy,rk2023-panel
panel. This panel is extremely similar to the rg353p-panel but
requires a smaller vertical back porch and isn't as tolerant of
higher speeds. Note that while all of these panels are identical in
size (70x57) it is possible future panels may not be.

Tested on my RG351V, RG353P, RG353V, and RK2023.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 .../gpu/drm/panel/panel-newvision-nv3051d.c   | 57 +++++++++++++++----
 1 file changed, 46 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
index 79de6c886292..94d89ffd596b 100644
--- a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
@@ -28,6 +28,7 @@ struct nv3051d_panel_info {
 	unsigned int num_modes;
 	u16 width_mm, height_mm;
 	u32 bus_flags;
+	u32 mode_flags;
 };
 
 struct panel_nv3051d {
@@ -261,6 +262,8 @@ static int panel_nv3051d_unprepare(struct drm_panel *panel)
 
 	usleep_range(10000, 15000);
 
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+
 	regulator_disable(ctx->vdd);
 
 	return 0;
@@ -385,15 +388,7 @@ static int panel_nv3051d_probe(struct mipi_dsi_device *dsi)
 
 	dsi->lanes = 4;
 	dsi->format = MIPI_DSI_FMT_RGB888;
-	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
-			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
-
-	/*
-	 * The panel in the RG351V is identical to the 353P, except it
-	 * requires MIPI_DSI_CLOCK_NON_CONTINUOUS to operate correctly.
-	 */
-	if (of_device_is_compatible(dev->of_node, "anbernic,rg351v-panel"))
-		dsi->mode_flags |= MIPI_DSI_CLOCK_NON_CONTINUOUS;
+	dsi->mode_flags = ctx->panel_info->mode_flags;
 
 	drm_panel_init(&ctx->panel, &dsi->dev, &panel_nv3051d_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
@@ -481,16 +476,56 @@ static const struct drm_display_mode nv3051d_rgxx3_modes[] = {
 	},
 };
 
-static const struct nv3051d_panel_info nv3051d_rgxx3_info = {
+static const struct drm_display_mode nv3051d_rk2023_modes[] = {
+	{
+		.hdisplay       = 640,
+		.hsync_start    = 640 + 40,
+		.hsync_end      = 640 + 40 + 2,
+		.htotal         = 640 + 40 + 2 + 80,
+		.vdisplay       = 480,
+		.vsync_start    = 480 + 18,
+		.vsync_end      = 480 + 18 + 2,
+		.vtotal         = 480 + 18 + 2 + 4,
+		.clock          = 24150,
+		.flags          = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	},
+};
+
+static const struct nv3051d_panel_info nv3051d_rg351v_info = {
 	.display_modes = nv3051d_rgxx3_modes,
 	.num_modes = ARRAY_SIZE(nv3051d_rgxx3_modes),
 	.width_mm = 70,
 	.height_mm = 57,
 	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET |
+		      MIPI_DSI_CLOCK_NON_CONTINUOUS,
+};
+
+static const struct nv3051d_panel_info nv3051d_rg353p_info = {
+	.display_modes = nv3051d_rgxx3_modes,
+	.num_modes = ARRAY_SIZE(nv3051d_rgxx3_modes),
+	.width_mm = 70,
+	.height_mm = 57,
+	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
+};
+
+static const struct nv3051d_panel_info nv3051d_rk2023_info = {
+	.display_modes = nv3051d_rk2023_modes,
+	.num_modes = ARRAY_SIZE(nv3051d_rk2023_modes),
+	.width_mm = 70,
+	.height_mm = 57,
+	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
 };
 
 static const struct of_device_id newvision_nv3051d_of_match[] = {
-	{ .compatible = "newvision,nv3051d", .data = &nv3051d_rgxx3_info },
+	{ .compatible = "anbernic,rg351v-panel", .data = &nv3051d_rg351v_info },
+	{ .compatible = "anbernic,rg353p-panel", .data = &nv3051d_rg353p_info },
+	{ .compatible = "powkiddy,rk2023-panel", .data = &nv3051d_rk2023_info },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, newvision_nv3051d_of_match);
-- 
2.34.1

[PATCH V2 3/4] dt-bindings: arm: rockchip: Add Powkiddy RK2023

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

The Powkiddy RK2023 is a handheld gaming device made by Powkiddy and
powered by the Rockchip RK3566 SoC. Group the Powkiddy RK3566 based
devices together as they are both extremely similar.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 5f7c6c4aad8f..5b015c4ed775 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -674,9 +674,11 @@ properties:
           - const: pine64,soquartz
           - const: rockchip,rk3566
 
-      - description: Powkiddy RGB30
+      - description: Powkiddy RK3566 Handheld Gaming Console
         items:
-          - const: powkiddy,rgb30
+          - enum:
+              - powkiddy,rgb30
+              - powkiddy,rk2023
           - const: rockchip,rk3566
 
       - description: Radxa Compute Module 3(CM3)
-- 
2.34.1

[PATCH V2 4/4] arm64: dts: rockchip: add Powkiddy RK2023

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Add support for the Powkiddy RK2023. The Powkiddy RK2023 is a handheld
gaming device with a 3.5 inch screen powered by the Rockchip RK3566
SoC. The device is almost identical to the Anbernic RG353P except it
lacks eMMC, a function button, a touch screen, no UART headers on the
board, and the panel has slightly different timings.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3566-powkiddy-rk2023.dts   | 161 ++++++++++++++++++
 2 files changed, 162 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index a18f33bf0c0e..f969618da352 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -78,6 +78,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg503.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-powkiddy-rgb30.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-powkiddy-rk2023.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-b.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-radxa-cm3-io.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts b/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
new file mode 100644
index 000000000000..5740412f6b2b
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
@@ -0,0 +1,161 @@
+// 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-rg353x.dtsi"
+
+/ {
+	model = "RK2023";
+	compatible = "powkiddy,rk2023", "rockchip,rk3566";
+
+	aliases {
+		mmc1 = &sdmmc0;
+		mmc2 = &sdmmc1;
+		mmc3 = &sdmmc2;
+	};
+
+	battery: battery {
+		compatible = "simple-battery";
+		charge-full-design-microamp-hours = <3151000>;
+		charge-term-current-microamp = <300000>;
+		constant-charge-current-max-microamp = <2000000>;
+		constant-charge-voltage-max-microvolt = <4250000>;
+		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>, <4092000 95>, <4035000 90>, <3990000 85>,
+					<3939000 80>, <3895000 75>, <3852000 70>, <3807000 65>,
+					<3762000 60>, <3713000 55>, <3672000 50>, <3647000 45>,
+					<3629000 40>, <3613000 35>, <3598000 30>, <3578000 25>,
+					<3550000 20>, <3519000 15>, <3479000 10>, <3438000 5>,
+					<3400000 0>;
+	};
+
+	/* Channels reversed for headphones. */
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "rk817_int";
+		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", "SPKO";
+
+		simple-audio-card,codec {
+			sound-dai = <&rk817>;
+		};
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s1_8ch>;
+		};
+	};
+
+};
+
+/delete-node/ &adc_keys;
+
+&chosen {
+	/delete-property/ stdout-path;
+};
+
+&cru {
+	assigned-clocks = <&pmucru CLK_RTC_32K>, <&cru PLL_GPLL>,
+			  <&pmucru PLL_PPLL>, <&cru PLL_VPLL>;
+	assigned-clock-rates = <32768>, <1200000000>,
+			  <200000000>, <115200000>;
+};
+
+&gpio_keys_control {
+	button-r1 {
+		gpios = <&gpio3 RK_PB3 GPIO_ACTIVE_LOW>;
+		label = "TR";
+		linux,code = <BTN_TR>;
+	};
+
+	button-r2 {
+		gpios = <&gpio3 RK_PB4 GPIO_ACTIVE_LOW>;
+		label = "TR2";
+		linux,code = <BTN_TR2>;
+	};
+};
+
+/delete-node/ &{/i2c@fdd40000/regulator@40};
+
+&i2c0 {
+	vdd_cpu: regulator@1c {
+		compatible = "tcs,tcs4525";
+		reg = <0x1c>;
+		fcs,suspend-voltage-selector = <1>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <712500>;
+		regulator-max-microvolt = <1390000>;
+		regulator-name = "vdd_cpu";
+		regulator-ramp-delay = <2300>;
+		vin-supply = <&vcc_sys>;
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+};
+
+/*
+ * Device has 2 controllable LEDs (a red and a green) along with a red
+ * LED that cannot be controlled and is always on when device is
+ * powered.
+ */
+
+/delete-node/ &{/pwm-leds/led-2};
+
+&leds {
+	green_led: led-0 {
+		color = <LED_COLOR_ID_GREEN>;
+		function = LED_FUNCTION_STATUS;
+		max-brightness = <255>;
+		pwms = <&pwm6 0 25000 0>;
+	};
+
+	red_led: led-1 {
+		color = <LED_COLOR_ID_RED>;
+		function = LED_FUNCTION_CHARGING;
+		max-brightness = <255>;
+		pwms = <&pwm7 0 25000 0>;
+	};
+
+};
+
+&panel {
+	compatible = "powkiddy,rk2023-panel", "newvision,nv3051d";
+};
+
+&pwm5 {
+	status = "disabled";
+};
+
+&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>;
+	};
+};
+
+/* There is no UART header visible on the board for this device. */
+&uart2 {
+	status = "disabled";
+};
+
+/delete-node/ &vibrator;
-- 
2.34.1

Re: [PATCH V2 1/4] dt-bindings: display: panel: Update NewVision NV3051D compatibles

[Krzysztof Kozlowski]

On 09/11/2023 22:50, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Update the NewVision NV3051D compatible strings by adding a new panel,
> the powkiddy,rk2023-panel, and removing another entry, the
> anbernic,rg353v-panel. The rg353v-panel is exactly identical to the
> rg353p-panel and is not currently in use by any existing device tree.
> The rk2023-panel is similar to the rg353p-panel but has slightly
> different timings.
> 
> I originally wrote the driver checking for the newvision,nv3051d
> compatible string which worked fine when there was only 1 panel type.
> When I added support for the 351v-panel I *should* have changed how the
> compatible string was handled, but instead I simply added a check in the
> probe function to look for the secondary string of
> "anbernic,rg351v-panel". Now that I am adding the 3rd panel type of
> "powkiddy,rk2023-panel" I am correcting the driver to do it the right
> way by checking for the specific compatibles.

I don't understand how any of this driver behavior is a reason to drop
rg353v. You wrote two paragraphs to justify this removal, but I feel the
only reason is that rg353v is just not needed, because it is duplicating
rg353p? Is this right? You actually did not write it explicitly...

Best regards,
Krzysztof

Re: [PATCH V2 3/4] dt-bindings: arm: rockchip: Add Powkiddy RK2023

[Krzysztof Kozlowski]

On 09/11/2023 22:50, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> The Powkiddy RK2023 is a handheld gaming device made by Powkiddy and
> powered by the Rockchip RK3566 SoC. Group the Powkiddy RK3566 based
> devices together as they are both extremely similar.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH V2 4/4] arm64: dts: rockchip: add Powkiddy RK2023

[Krzysztof Kozlowski]

On 09/11/2023 22:50, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Add support for the Powkiddy RK2023. The Powkiddy RK2023 is a handheld
> gaming device with a 3.5 inch screen powered by the Rockchip RK3566
> SoC. The device is almost identical to the Anbernic RG353P except it
> lacks eMMC, a function button, a touch screen, no UART headers on the
> board, and the panel has slightly different timings.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../dts/rockchip/rk3566-powkiddy-rk2023.dts   | 161 ++++++++++++++++++
>  2 files changed, 162 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index a18f33bf0c0e..f969618da352 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -78,6 +78,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg503.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.1.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.2.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-powkiddy-rgb30.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-powkiddy-rk2023.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-a.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-b.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-radxa-cm3-io.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts b/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
> new file mode 100644
> index 000000000000..5740412f6b2b
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
> @@ -0,0 +1,161 @@
> +// 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-rg353x.dtsi"
> +
> +/ {
> +	model = "RK2023";
> +	compatible = "powkiddy,rk2023", "rockchip,rk3566";
> +
> +	aliases {
> +		mmc1 = &sdmmc0;
> +		mmc2 = &sdmmc1;
> +		mmc3 = &sdmmc2;
> +	};
> +
> +	battery: battery {
> +		compatible = "simple-battery";
> +		charge-full-design-microamp-hours = <3151000>;
> +		charge-term-current-microamp = <300000>;
> +		constant-charge-current-max-microamp = <2000000>;
> +		constant-charge-voltage-max-microvolt = <4250000>;
> +		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>, <4092000 95>, <4035000 90>, <3990000 85>,
> +					<3939000 80>, <3895000 75>, <3852000 70>, <3807000 65>,
> +					<3762000 60>, <3713000 55>, <3672000 50>, <3647000 45>,
> +					<3629000 40>, <3613000 35>, <3598000 30>, <3578000 25>,
> +					<3550000 20>, <3519000 15>, <3479000 10>, <3438000 5>,
> +					<3400000 0>;
> +	};
> +
> +	/* Channels reversed for headphones. */
> +	sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "rk817_int";
> +		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", "SPKO";
> +
> +		simple-audio-card,codec {
> +			sound-dai = <&rk817>;
> +		};
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&i2s1_8ch>;
> +		};
> +	};
> +
> +};
> +
> +/delete-node/ &adc_keys;
> +
> +&chosen {
> +	/delete-property/ stdout-path;
> +};

If you have to delete so many nodes and properties, this means your
common DTSI is not that common.

Common DTSI means there is shared hardware. If you take shared hardware
and put it into another board, pieces of the shared hardware do not
disappear.


Best regards,
Krzysztof

Re: [PATCH V2 1/4] dt-bindings: display: panel: Update NewVision NV3051D compatibles

[Chris Morgan]

On Fri, Nov 10, 2023 at 02:11:58PM +0100, Krzysztof Kozlowski wrote:
> On 09/11/2023 22:50, Chris Morgan wrote:
> > From: Chris Morgan <macromorgan@hotmail.com>
> > 
> > Update the NewVision NV3051D compatible strings by adding a new panel,
> > the powkiddy,rk2023-panel, and removing another entry, the
> > anbernic,rg353v-panel. The rg353v-panel is exactly identical to the
> > rg353p-panel and is not currently in use by any existing device tree.
> > The rk2023-panel is similar to the rg353p-panel but has slightly
> > different timings.
> > 
> > I originally wrote the driver checking for the newvision,nv3051d
> > compatible string which worked fine when there was only 1 panel type.
> > When I added support for the 351v-panel I *should* have changed how the
> > compatible string was handled, but instead I simply added a check in the
> > probe function to look for the secondary string of
> > "anbernic,rg351v-panel". Now that I am adding the 3rd panel type of
> > "powkiddy,rk2023-panel" I am correcting the driver to do it the right
> > way by checking for the specific compatibles.
> 
> I don't understand how any of this driver behavior is a reason to drop
> rg353v. You wrote two paragraphs to justify this removal, but I feel the
> only reason is that rg353v is just not needed, because it is duplicating
> rg353p? Is this right? You actually did not write it explicitly...

Sorry if I wasn't clear, I did note that the rg353p-panel is exactly
identical to the rg353v-panel. Should I add additional details beyond
that to clarify?

Thank you.

> 
> Best regards,
> Krzysztof
> 

Re: [PATCH V2 4/4] arm64: dts: rockchip: add Powkiddy RK2023

[Chris Morgan]

On Fri, Nov 10, 2023 at 02:14:23PM +0100, Krzysztof Kozlowski wrote:
> On 09/11/2023 22:50, Chris Morgan wrote:
> > From: Chris Morgan <macromorgan@hotmail.com>
> > 
> > Add support for the Powkiddy RK2023. The Powkiddy RK2023 is a handheld
> > gaming device with a 3.5 inch screen powered by the Rockchip RK3566
> > SoC. The device is almost identical to the Anbernic RG353P except it
> > lacks eMMC, a function button, a touch screen, no UART headers on the
> > board, and the panel has slightly different timings.
> > 
> > Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> > ---
> >  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
> >  .../dts/rockchip/rk3566-powkiddy-rk2023.dts   | 161 ++++++++++++++++++
> >  2 files changed, 162 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
> > 
> > diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> > index a18f33bf0c0e..f969618da352 100644
> > --- a/arch/arm64/boot/dts/rockchip/Makefile
> > +++ b/arch/arm64/boot/dts/rockchip/Makefile
> > @@ -78,6 +78,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-anbernic-rg503.dtb
> >  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.1.dtb
> >  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.2.dtb
> >  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-powkiddy-rgb30.dtb
> > +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-powkiddy-rk2023.dtb
> >  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-a.dtb
> >  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-b.dtb
> >  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-radxa-cm3-io.dtb
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts b/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
> > new file mode 100644
> > index 000000000000..5740412f6b2b
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/rockchip/rk3566-powkiddy-rk2023.dts
> > @@ -0,0 +1,161 @@
> > +// 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-rg353x.dtsi"
> > +
> > +/ {
> > +	model = "RK2023";
> > +	compatible = "powkiddy,rk2023", "rockchip,rk3566";
> > +
> > +	aliases {
> > +		mmc1 = &sdmmc0;
> > +		mmc2 = &sdmmc1;
> > +		mmc3 = &sdmmc2;
> > +	};
> > +
> > +	battery: battery {
> > +		compatible = "simple-battery";
> > +		charge-full-design-microamp-hours = <3151000>;
> > +		charge-term-current-microamp = <300000>;
> > +		constant-charge-current-max-microamp = <2000000>;
> > +		constant-charge-voltage-max-microvolt = <4250000>;
> > +		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>, <4092000 95>, <4035000 90>, <3990000 85>,
> > +					<3939000 80>, <3895000 75>, <3852000 70>, <3807000 65>,
> > +					<3762000 60>, <3713000 55>, <3672000 50>, <3647000 45>,
> > +					<3629000 40>, <3613000 35>, <3598000 30>, <3578000 25>,
> > +					<3550000 20>, <3519000 15>, <3479000 10>, <3438000 5>,
> > +					<3400000 0>;
> > +	};
> > +
> > +	/* Channels reversed for headphones. */
> > +	sound {
> > +		compatible = "simple-audio-card";
> > +		simple-audio-card,name = "rk817_int";
> > +		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", "SPKO";
> > +
> > +		simple-audio-card,codec {
> > +			sound-dai = <&rk817>;
> > +		};
> > +
> > +		simple-audio-card,cpu {
> > +			sound-dai = <&i2s1_8ch>;
> > +		};
> > +	};
> > +
> > +};
> > +
> > +/delete-node/ &adc_keys;
> > +
> > +&chosen {
> > +	/delete-property/ stdout-path;
> > +};
> 
> If you have to delete so many nodes and properties, this means your
> common DTSI is not that common.
> 
> Common DTSI means there is shared hardware. If you take shared hardware
> and put it into another board, pieces of the shared hardware do not
> disappear.
> 
> 
> Best regards,
> Krzysztof
> 

I can redo this with a different top-level dtsi so I won't have to
delete so much if that helps. I'll redo both the RGB30 and RK2023
so that they use a common dtsi and no longer rely on the Anberic
one. I'll do that and submit a V3.

Thank you.

Re: [PATCH V2 1/4] dt-bindings: display: panel: Update NewVision NV3051D compatibles

[Krzysztof Kozlowski]

On 10/11/2023 15:28, Chris Morgan wrote:
> On Fri, Nov 10, 2023 at 02:11:58PM +0100, Krzysztof Kozlowski wrote:
>> On 09/11/2023 22:50, Chris Morgan wrote:
>>> From: Chris Morgan <macromorgan@hotmail.com>
>>>
>>> Update the NewVision NV3051D compatible strings by adding a new panel,
>>> the powkiddy,rk2023-panel, and removing another entry, the
>>> anbernic,rg353v-panel. The rg353v-panel is exactly identical to the
>>> rg353p-panel and is not currently in use by any existing device tree.
>>> The rk2023-panel is similar to the rg353p-panel but has slightly
>>> different timings.
>>>
>>> I originally wrote the driver checking for the newvision,nv3051d
>>> compatible string which worked fine when there was only 1 panel type.
>>> When I added support for the 351v-panel I *should* have changed how the
>>> compatible string was handled, but instead I simply added a check in the
>>> probe function to look for the secondary string of
>>> "anbernic,rg351v-panel". Now that I am adding the 3rd panel type of
>>> "powkiddy,rk2023-panel" I am correcting the driver to do it the right
>>> way by checking for the specific compatibles.
>>
>> I don't understand how any of this driver behavior is a reason to drop
>> rg353v. You wrote two paragraphs to justify this removal, but I feel the
>> only reason is that rg353v is just not needed, because it is duplicating
>> rg353p? Is this right? You actually did not write it explicitly...
> 
> Sorry if I wasn't clear, I did note that the rg353p-panel is exactly
> identical to the rg353v-panel. Should I add additional details beyond
> that to clarify?

The entire paragraph about driver feels redundant. Your first paragraph
should still say why you remove it.

Best regards,
Krzysztof

Re: [PATCH V2 4/4] arm64: dts: rockchip: add Powkiddy RK2023

[Krzysztof Kozlowski]

On 10/11/2023 15:30, Chris Morgan wrote:
> On Fri, Nov 10, 2023 at 02:14:23PM +0100, Krzysztof Kozlowski wrote:

>>> +
>>> +/delete-node/ &adc_keys;
>>> +
>>> +&chosen {
>>> +	/delete-property/ stdout-path;
>>> +};
>>
>> If you have to delete so many nodes and properties, this means your
>> common DTSI is not that common.
>>
>> Common DTSI means there is shared hardware. If you take shared hardware
>> and put it into another board, pieces of the shared hardware do not
>> disappear.
>>
>>
>> Best regards,
>> Krzysztof
>>
> 
> I can redo this with a different top-level dtsi so I won't have to
> delete so much if that helps. I'll redo both the RGB30 and RK2023
> so that they use a common dtsi and no longer rely on the Anberic
> one. I'll do that and submit a V3.

I am not sure whether you need another top-level DTSI, but maybe rather
move things from common DTSI to each boards. Or you are using wrong
common DTSI. You are supposed to reference common DTSI if the hardware
parts are common. Don't use some DTSI just because DTS looks similar.

I did not investigate your hardware to give recommendation how DTS
should look like. But judging from node removals, something is not done
obvious way.

Best regards,
Krzysztof

Re: [PATCH V2 2/4] nv3051d: Add Powkiddy RK2023 Panel Support

[Jessica Zhang]

On 11/9/2023 1:50 PM, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Refactor the driver to add support for the powkiddy,rk2023-panel
> panel. This panel is extremely similar to the rg353p-panel but
> requires a smaller vertical back porch and isn't as tolerant of
> higher speeds. Note that while all of these panels are identical in
> size (70x57) it is possible future panels may not be.
> 
> Tested on my RG351V, RG353P, RG353V, and RK2023.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>   .../gpu/drm/panel/panel-newvision-nv3051d.c   | 57 +++++++++++++++----
>   1 file changed, 46 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
> index 79de6c886292..94d89ffd596b 100644
> --- a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
> +++ b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
> @@ -28,6 +28,7 @@ struct nv3051d_panel_info {
>   	unsigned int num_modes;
>   	u16 width_mm, height_mm;
>   	u32 bus_flags;
> +	u32 mode_flags;
>   };
>   
>   struct panel_nv3051d {
> @@ -261,6 +262,8 @@ static int panel_nv3051d_unprepare(struct drm_panel *panel)
>   
>   	usleep_range(10000, 15000);
>   
> +	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> +

Hi Chris,

Is this to address a suspend/resume issue similar to what was done here [1]?

If so, I think maybe this can go as a separate Fixes patch.

Thanks,

Jessica Zhang

[1] https://patchwork.freedesktop.org/patch/567670/?series=126479&rev=1

>   	regulator_disable(ctx->vdd);
>   
>   	return 0;
> @@ -385,15 +388,7 @@ static int panel_nv3051d_probe(struct mipi_dsi_device *dsi)
>   
>   	dsi->lanes = 4;
>   	dsi->format = MIPI_DSI_FMT_RGB888;
> -	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> -			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
> -
> -	/*
> -	 * The panel in the RG351V is identical to the 353P, except it
> -	 * requires MIPI_DSI_CLOCK_NON_CONTINUOUS to operate correctly.
> -	 */
> -	if (of_device_is_compatible(dev->of_node, "anbernic,rg351v-panel"))
> -		dsi->mode_flags |= MIPI_DSI_CLOCK_NON_CONTINUOUS;
> +	dsi->mode_flags = ctx->panel_info->mode_flags;
>   
>   	drm_panel_init(&ctx->panel, &dsi->dev, &panel_nv3051d_funcs,
>   		       DRM_MODE_CONNECTOR_DSI);
> @@ -481,16 +476,56 @@ static const struct drm_display_mode nv3051d_rgxx3_modes[] = {
>   	},
>   };
>   
> -static const struct nv3051d_panel_info nv3051d_rgxx3_info = {
> +static const struct drm_display_mode nv3051d_rk2023_modes[] = {
> +	{
> +		.hdisplay       = 640,
> +		.hsync_start    = 640 + 40,
> +		.hsync_end      = 640 + 40 + 2,
> +		.htotal         = 640 + 40 + 2 + 80,
> +		.vdisplay       = 480,
> +		.vsync_start    = 480 + 18,
> +		.vsync_end      = 480 + 18 + 2,
> +		.vtotal         = 480 + 18 + 2 + 4,
> +		.clock          = 24150,
> +		.flags          = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> +	},
> +};
> +
> +static const struct nv3051d_panel_info nv3051d_rg351v_info = {
>   	.display_modes = nv3051d_rgxx3_modes,
>   	.num_modes = ARRAY_SIZE(nv3051d_rgxx3_modes),
>   	.width_mm = 70,
>   	.height_mm = 57,
>   	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET |
> +		      MIPI_DSI_CLOCK_NON_CONTINUOUS,
> +};
> +
> +static const struct nv3051d_panel_info nv3051d_rg353p_info = {
> +	.display_modes = nv3051d_rgxx3_modes,
> +	.num_modes = ARRAY_SIZE(nv3051d_rgxx3_modes),
> +	.width_mm = 70,
> +	.height_mm = 57,
> +	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
> +};
> +
> +static const struct nv3051d_panel_info nv3051d_rk2023_info = {
> +	.display_modes = nv3051d_rk2023_modes,
> +	.num_modes = ARRAY_SIZE(nv3051d_rk2023_modes),
> +	.width_mm = 70,
> +	.height_mm = 57,
> +	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> +		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
>   };
>   
>   static const struct of_device_id newvision_nv3051d_of_match[] = {
> -	{ .compatible = "newvision,nv3051d", .data = &nv3051d_rgxx3_info },
> +	{ .compatible = "anbernic,rg351v-panel", .data = &nv3051d_rg351v_info },
> +	{ .compatible = "anbernic,rg353p-panel", .data = &nv3051d_rg353p_info },
> +	{ .compatible = "powkiddy,rk2023-panel", .data = &nv3051d_rk2023_info },
>   	{ /* sentinel */ }
>   };
>   MODULE_DEVICE_TABLE(of, newvision_nv3051d_of_match);
> -- 
> 2.34.1
>