[PATCH v2 0/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

[PATCH v2 0/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

[Liu Ying]

Hi,

This patch series aims to add BOE EV121WXM-N10-1850 panel support
in the DRM simple panel driver.

Patch 1/2 adds dt-bindings support for the panel.
Patch 2/2 adds the panel support in the DRM simple panel driver.

v1->v2:
* Add Krzysztof's A-b tag on patch 1/2.
* Use struct display_timing in patch 2/2 to tell minimum and maximum
  pixel clock rates.
* Set bus_flags to DRM_BUS_FLAG_DE_HIGH in struct panel_desc in patch 2/2.

Liu Ying (2):
  dt-bindings: display: simple: Add BOE EV121WXM-N10-1850 panel
  drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

 .../bindings/display/panel/panel-simple.yaml  |  2 ++
 drivers/gpu/drm/panel/panel-simple.c          | 34 +++++++++++++++++++
 2 files changed, 36 insertions(+)

-- 
2.37.1

[PATCH v2 1/2] dt-bindings: display: simple: Add BOE EV121WXM-N10-1850 panel

[Liu Ying]

Add BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel
compatible string.  The panel has a LVDS display interface.

The panel's product specification can be found at:
http://www.onetech.com.tw/files/EV121WXM-N10-1850ProductSpecification_20180801.pdf

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
---
v1->v2:
* Add Krzysztof's A-b tag.

 .../devicetree/bindings/display/panel/panel-simple.yaml         | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
index 01560fe226dd..b9dbc5bb065d 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -77,6 +77,8 @@ properties:
       - auo,t215hvn01
         # Shanghai AVIC Optoelectronics 7" 1024x600 color TFT-LCD panel
       - avic,tm070ddh03
+        # BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel
+      - boe,ev121wxm-n10-1850
         # BOE HV070WSA-100 7.01" WSVGA TFT LCD panel
       - boe,hv070wsa-100
         # BOE OPTOELECTRONICS TECHNOLOGY 10.1" WXGA TFT LCD panel
-- 
2.37.1

[PATCH v2 2/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

[Liu Ying]

Add BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel support.
The panel has a LVDS display interface.

The panel's product specification can be found at:
http://www.onetech.com.tw/files/EV121WXM-N10-1850ProductSpecification_20180801.pdf

Signed-off-by: Liu Ying <victor.liu@nxp.com>
---
v1->v2:
* Use struct display_timing to tell minimum and maximum pixel clock rates.
* Set bus_flags to DRM_BUS_FLAG_DE_HIGH in struct panel_desc.

 drivers/gpu/drm/panel/panel-simple.c | 34 ++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 065f378bba9d..b1590a7e2cda 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1211,6 +1211,37 @@ static const struct panel_desc bananapi_s070wv20_ct16 = {
 	},
 };
 
+static const struct display_timing boe_ev121wxm_n10_1850_timing = {
+	.pixelclock = { 69922000, 71000000, 72293000 },
+	.hactive = { 1280, 1280, 1280 },
+	.hfront_porch = { 48, 48, 48 },
+	.hback_porch = { 80, 80, 80 },
+	.hsync_len = { 32, 32, 32 },
+	.vactive = { 800, 800, 800 },
+	.vfront_porch = { 3, 3, 3 },
+	.vback_porch = { 14, 14, 14 },
+	.vsync_len = { 6, 6, 6 },
+};
+
+static const struct panel_desc boe_ev121wxm_n10_1850 = {
+	.timings = &boe_ev121wxm_n10_1850_timing,
+	.num_timings = 1,
+	.bpc = 8,
+	.size = {
+		.width = 261,
+		.height = 163,
+	},
+	.delay = {
+		.prepare = 9,
+		.enable = 300,
+		.unprepare = 300,
+		.disable = 560,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
+	.connector_type = DRM_MODE_CONNECTOR_LVDS,
+};
+
 static const struct drm_display_mode boe_hv070wsa_mode = {
 	.clock = 42105,
 	.hdisplay = 1024,
@@ -3984,6 +4015,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "bananapi,s070wv20-ct16",
 		.data = &bananapi_s070wv20_ct16,
+	}, {
+		.compatible = "boe,ev121wxm-n10-1850",
+		.data = &boe_ev121wxm_n10_1850,
 	}, {
 		.compatible = "boe,hv070wsa-100",
 		.data = &boe_hv070wsa
-- 
2.37.1

Re: [PATCH v2 1/2] dt-bindings: display: simple: Add BOE EV121WXM-N10-1850 panel

[Rob Herring]

On Mon, 08 May 2023 16:38:25 +0800, Liu Ying wrote:
> Add BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel
> compatible string.  The panel has a LVDS display interface.
> 
> The panel's product specification can be found at:
> http://www.onetech.com.tw/files/EV121WXM-N10-1850ProductSpecification_20180801.pdf
> 
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Liu Ying <victor.liu@nxp.com>
> ---
> v1->v2:
> * Add Krzysztof's A-b tag.
> 
>  .../devicetree/bindings/display/panel/panel-simple.yaml         | 2 ++
>  1 file changed, 2 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.example.dtb: pcie-ep@33800000: Unevaluated properties are not allowed ('assigned-clock-parents', 'assigned-clock-rates', 'assigned-clocks' were unexpected)
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/rockchip-isp1.example.dtb: camera@3c: port:endpoint:data-lanes: [[1]] is too short
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/ovti,ov2685.yaml
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/ovti,ov2685.example.dtb: camera-sensor@3c: port:endpoint:data-lanes: [[1]] is too short
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/ovti,ov2685.yaml

doc reference errors (make refcheckdocs):
Documentation/usb/gadget_uvc.rst: Documentation/userspace-api/media/v4l/pixfmt-packed.yuv.rst
MAINTAINERS: Documentation/devicetree/bindings/pwm/pwm-apple.yaml

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230508083826.1016206-2-victor.liu@nxp.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

Re: [PATCH v2 1/2] dt-bindings: display: simple: Add BOE EV121WXM-N10-1850 panel

[Krzysztof Kozlowski]

On 08/05/2023 11:27, Rob Herring wrote:
> 
> On Mon, 08 May 2023 16:38:25 +0800, Liu Ying wrote:
>> Add BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel
>> compatible string.  The panel has a LVDS display interface.
>>
>> The panel's product specification can be found at:
>> http://www.onetech.com.tw/files/EV121WXM-N10-1850ProductSpecification_20180801.pdf
>>
>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> Signed-off-by: Liu Ying <victor.liu@nxp.com>
>> ---
>> v1->v2:
>> * Add Krzysztof's A-b tag.
>>
>>  .../devicetree/bindings/display/panel/panel-simple.yaml         | 2 ++
>>  1 file changed, 2 insertions(+)
>>
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.example.dtb: pcie-ep@33800000: Unevaluated properties are not allowed ('assigned-clock-parents', 'assigned-clock-rates', 'assigned-clocks' were unexpected)
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/rockchip-isp1.example.dtb: camera@3c: port:endpoint:data-lanes: [[1]] is too short
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/ovti,ov2685.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/ovti,ov2685.example.dtb: camera-sensor@3c: port:endpoint:data-lanes: [[1]] is too short
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/ovti,ov2685.yaml

Warnings are unrelated, can be ignored.

Best regards,
Krzysztof

Re: [PATCH v2 2/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

[neil.armstrong]

On 08/05/2023 10:38, Liu Ying wrote:
> Add BOE EV121WXM-N10-1850 12.1" WXGA (1280x800) TFT LCD panel support.
> The panel has a LVDS display interface.
> 
> The panel's product specification can be found at:
> http://www.onetech.com.tw/files/EV121WXM-N10-1850ProductSpecification_20180801.pdf
> 
> Signed-off-by: Liu Ying <victor.liu@nxp.com>
> ---
> v1->v2:
> * Use struct display_timing to tell minimum and maximum pixel clock rates.
> * Set bus_flags to DRM_BUS_FLAG_DE_HIGH in struct panel_desc.
> 
>   drivers/gpu/drm/panel/panel-simple.c | 34 ++++++++++++++++++++++++++++
>   1 file changed, 34 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 065f378bba9d..b1590a7e2cda 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1211,6 +1211,37 @@ static const struct panel_desc bananapi_s070wv20_ct16 = {
>   	},
>   };
>   
> +static const struct display_timing boe_ev121wxm_n10_1850_timing = {
> +	.pixelclock = { 69922000, 71000000, 72293000 },
> +	.hactive = { 1280, 1280, 1280 },
> +	.hfront_porch = { 48, 48, 48 },
> +	.hback_porch = { 80, 80, 80 },
> +	.hsync_len = { 32, 32, 32 },
> +	.vactive = { 800, 800, 800 },
> +	.vfront_porch = { 3, 3, 3 },
> +	.vback_porch = { 14, 14, 14 },
> +	.vsync_len = { 6, 6, 6 },
> +};
> +
> +static const struct panel_desc boe_ev121wxm_n10_1850 = {
> +	.timings = &boe_ev121wxm_n10_1850_timing,
> +	.num_timings = 1,
> +	.bpc = 8,
> +	.size = {
> +		.width = 261,
> +		.height = 163,
> +	},
> +	.delay = {
> +		.prepare = 9,
> +		.enable = 300,
> +		.unprepare = 300,
> +		.disable = 560,
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> +	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
> +	.connector_type = DRM_MODE_CONNECTOR_LVDS,
> +};
> +
>   static const struct drm_display_mode boe_hv070wsa_mode = {
>   	.clock = 42105,
>   	.hdisplay = 1024,
> @@ -3984,6 +4015,9 @@ static const struct of_device_id platform_of_match[] = {
>   	}, {
>   		.compatible = "bananapi,s070wv20-ct16",
>   		.data = &bananapi_s070wv20_ct16,
> +	}, {
> +		.compatible = "boe,ev121wxm-n10-1850",
> +		.data = &boe_ev121wxm_n10_1850,
>   	}, {
>   		.compatible = "boe,hv070wsa-100",
>   		.data = &boe_hv070wsa

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Re: [PATCH v2 0/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support

[Neil Armstrong]

Hi,

On Mon, 08 May 2023 16:38:24 +0800, Liu Ying wrote:
> This patch series aims to add BOE EV121WXM-N10-1850 panel support
> in the DRM simple panel driver.
> 
> Patch 1/2 adds dt-bindings support for the panel.
> Patch 2/2 adds the panel support in the DRM simple panel driver.
> 
> v1->v2:
> * Add Krzysztof's A-b tag on patch 1/2.
> * Use struct display_timing in patch 2/2 to tell minimum and maximum
>   pixel clock rates.
> * Set bus_flags to DRM_BUS_FLAG_DE_HIGH in struct panel_desc in patch 2/2.
> 
> [...]

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

[1/2] dt-bindings: display: simple: Add BOE EV121WXM-N10-1850 panel
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=0bd5bd65cd2e4d1335ea6c17cd2c8664decbc630
[2/2] drm/panel: panel-simple: Add BOE EV121WXM-N10-1850 panel support
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=8bb7c7bca5b70f3cd22d95b4d36029295c4274f6

-- 
Neil