[PATCH v3 0/3] panel-simple: add support for Crystal Clear CMT430B19N00

[PATCH v3 0/3] panel-simple: add support for Crystal Clear CMT430B19N00

[Jérémie Dautheribes]

Hello everyone,

This patch series add support for the Crystal Clear Technology
CMT430B19N00 4.3" 480x272 TFT-LCD panel.
It also adds Crystal Clear Technology to vendor-prefixes.yaml.

Please note that unfortunately there is no public datasheet available
for this panel.

Changes in v3:
  - PATCH 3/3: use display_timing structure instead of display_mode
  structure as suggested by Maxime Ripard.
  - Link to v2: https://lore.kernel.org/all/20240304160454.96977-1-jeremie.dautheribes@bootlin.com/

Changes in v2:
  - add link to the Crystal Clear Technology website in commit message, as
  suggested by Conor Dooley and Neil Armstrong.
  - Link to v1: https://lore.kernel.org/all/20240223134517.728568-1-jeremie.dautheribes@bootlin.com/

Regards,

Jérémie

Jérémie Dautheribes (3):
  dt-bindings: Add Crystal Clear Technology vendor prefix
  dt-bindings: display: simple: add support for Crystal Clear
    CMT430B19N00
  drm/panel: simple: add CMT430B19N00 LCD panel support

 .../bindings/display/panel/panel-simple.yaml  |  2 ++
 .../devicetree/bindings/vendor-prefixes.yaml  |  2 ++
 drivers/gpu/drm/panel/panel-simple.c          | 29 +++++++++++++++++++
 3 files changed, 33 insertions(+)

-- 
2.34.1

[PATCH v3 1/3] dt-bindings: Add Crystal Clear Technology vendor prefix

[Jérémie Dautheribes]

Update Documentation/devicetree/bindings/vendor-prefixes.yaml to
include "cct" as a vendor prefix for "Crystal Clear Technology". CCT is
the vendor of the CMT430B19N00 TFT-LCD panel.

Link: http://www.cct.com.my/
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.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 fef2e12b504e..96e47742e250 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -248,6 +248,8 @@ patternProperties:
     description: Catalyst Semiconductor, Inc.
   "^cavium,.*":
     description: Cavium, Inc.
+  "^cct,.*":
+    description: Crystal Clear Technology Sdn. Bhd.
   "^cdns,.*":
     description: Cadence Design Systems Inc.
   "^cdtech,.*":
-- 
2.34.1

[PATCH v3 2/3] dt-bindings: display: simple: add support for Crystal Clear CMT430B19N00

[Jérémie Dautheribes]

Add Crystal Clear Technology CMT430B19N00 4.3" 480x272 TFT-LCD panel
compatible string.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.com>
---
 .../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 a95445f40870..c575f7c4b745 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -91,6 +91,8 @@ properties:
       - boe,nv133fhm-n62
         # BOE NV140FHM-N49 14.0" FHD a-Si FT panel
       - boe,nv140fhmn49
+        # Crystal Clear Technology CMT430B19N00 4.3" 480x272 TFT-LCD panel
+      - cct,cmt430b19n00
         # CDTech(H.K.) Electronics Limited 4.3" 480x272 color TFT-LCD panel
       - cdtech,s043wq26h-ct7
         # CDTech(H.K.) Electronics Limited 7" WSVGA (1024x600) TFT LCD Panel
-- 
2.34.1

[PATCH v3 3/3] drm/panel: simple: add CMT430B19N00 LCD panel support

[Jérémie Dautheribes]

Add support for Crystal Clear Technology CMT430B19N00 4.3" 480x272
TFT-LCD panel.

Suggested-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.com>
---
 drivers/gpu/drm/panel/panel-simple.c | 29 ++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 20e3df1c59d4..d13c42d0f57b 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1457,6 +1457,32 @@ static const struct panel_desc boe_hv070wsa = {
 	.connector_type = DRM_MODE_CONNECTOR_LVDS,
 };
 
+static const struct display_timing cct_cmt430b19n00_timing = {
+	.pixelclock = { 8000000, 9000000, 12000000 },
+	.hactive = { 480, 480, 480 },
+	.hfront_porch = { 2, 8, 75 },
+	.hback_porch = { 3, 43, 43 },
+	.hsync_len = { 2, 4, 75 },
+	.vactive = { 272, 272, 272 },
+	.vfront_porch = { 2, 8, 37 },
+	.vback_porch = { 2, 12, 12 },
+	.vsync_len = { 2, 4, 37 },
+	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW
+};
+
+static const struct panel_desc cct_cmt430b19n00 = {
+	.timings = &cct_cmt430b19n00_timing,
+	.num_timings = 1,
+	.bpc = 8,
+	.size = {
+		.width = 95,
+		.height = 53,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
+	.connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
 static const struct drm_display_mode cdtech_s043wq26h_ct7_mode = {
 	.clock = 9000,
 	.hdisplay = 480,
@@ -4402,6 +4428,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "boe,hv070wsa-100",
 		.data = &boe_hv070wsa
+	}, {
+		.compatible = "cct,cmt430b19n00",
+		.data = &cct_cmt430b19n00,
 	}, {
 		.compatible = "cdtech,s043wq26h-ct7",
 		.data = &cdtech_s043wq26h_ct7,
-- 
2.34.1

Re: [PATCH v3 3/3] drm/panel: simple: add CMT430B19N00 LCD panel support

[Neil Armstrong]

On 13/03/2024 18:20, Jérémie Dautheribes wrote:
> Add support for Crystal Clear Technology CMT430B19N00 4.3" 480x272
> TFT-LCD panel.
> 
> Suggested-by: Maxime Ripard <mripard@kernel.org>
> Signed-off-by: Jérémie Dautheribes <jeremie.dautheribes@bootlin.com>
> ---
>   drivers/gpu/drm/panel/panel-simple.c | 29 ++++++++++++++++++++++++++++
>   1 file changed, 29 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 20e3df1c59d4..d13c42d0f57b 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1457,6 +1457,32 @@ static const struct panel_desc boe_hv070wsa = {
>   	.connector_type = DRM_MODE_CONNECTOR_LVDS,
>   };
>   
> +static const struct display_timing cct_cmt430b19n00_timing = {
> +	.pixelclock = { 8000000, 9000000, 12000000 },
> +	.hactive = { 480, 480, 480 },
> +	.hfront_porch = { 2, 8, 75 },
> +	.hback_porch = { 3, 43, 43 },
> +	.hsync_len = { 2, 4, 75 },
> +	.vactive = { 272, 272, 272 },
> +	.vfront_porch = { 2, 8, 37 },
> +	.vback_porch = { 2, 12, 12 },
> +	.vsync_len = { 2, 4, 37 },
> +	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW
> +};
> +
> +static const struct panel_desc cct_cmt430b19n00 = {
> +	.timings = &cct_cmt430b19n00_timing,
> +	.num_timings = 1,
> +	.bpc = 8,
> +	.size = {
> +		.width = 95,
> +		.height = 53,
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> +	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
> +	.connector_type = DRM_MODE_CONNECTOR_DPI,
> +};
> +
>   static const struct drm_display_mode cdtech_s043wq26h_ct7_mode = {
>   	.clock = 9000,
>   	.hdisplay = 480,
> @@ -4402,6 +4428,9 @@ static const struct of_device_id platform_of_match[] = {
>   	}, {
>   		.compatible = "boe,hv070wsa-100",
>   		.data = &boe_hv070wsa
> +	}, {
> +		.compatible = "cct,cmt430b19n00",
> +		.data = &cct_cmt430b19n00,
>   	}, {
>   		.compatible = "cdtech,s043wq26h-ct7",
>   		.data = &cdtech_s043wq26h_ct7,

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

Re: [PATCH v3 0/3] panel-simple: add support for Crystal Clear CMT430B19N00

[neil.armstrong]

From: Neil Armstrong <neil.armstrong@linaro.org>

Hi,

On Wed, 13 Mar 2024 18:20:13 +0100, Jérémie Dautheribes wrote:
> This patch series add support for the Crystal Clear Technology
> CMT430B19N00 4.3" 480x272 TFT-LCD panel.
> It also adds Crystal Clear Technology to vendor-prefixes.yaml.
> 
> Please note that unfortunately there is no public datasheet available
> for this panel.
> 
> [...]

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

[1/3] dt-bindings: Add Crystal Clear Technology vendor prefix
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/fe67bfbd23b0ccfaaa5de9f9176c6283c628cea1
[2/3] dt-bindings: display: simple: add support for Crystal Clear CMT430B19N00
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/2fbb050335f8195b86ebcdf498a6c171bba10f8d
[3/3] drm/panel: simple: add CMT430B19N00 LCD panel support
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/751b58418250a56329d35de29329f547c43e7c7f

-- 
Neil