2021-04-19 09:58:00

by Alistair Francis

Subject: [PATCH 1/2] dt-bindings: Add E Ink to vendor bindings

Add the E Ink Corporation to the vendor bindings.

Signed-off-by: Alistair Francis <[email protected]>
---
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 996f4de2fff5..6c9323dc9b78 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -329,6 +329,8 @@ patternProperties:
description: eGalax_eMPIA Technology Inc
"^einfochips,.*":
description: Einfochips
+ "^eink,.*":
+ description: E Ink Corporation
"^elan,.*":
description: Elan Microelectronic Corp.
"^element14,.*":
--
2.31.1

2021-04-19 10:08:18

by Alistair Francis

Subject: [PATCH 2/2] drm/panel: Add support for E Ink VB3300-KCA

Add support for the 10.3" E Ink panel described at:
https://www.eink.com/product.html?type=productdetail&id=7

Signed-off-by: Alistair Francis <[email protected]>
---
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 4e2dad314c79..f1f6fd2517f6 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1964,6 +1964,32 @@ static const struct panel_desc edt_etm0700g0bdh6 = {
.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
};

+static const struct display_timing eink_vb3300_kca_timing = {
+ .pixelclock = { 40000000, 40000000, 40000000 },
+ .hactive = { 334, 334, 334 },
+ .hfront_porch = { 1, 1, 1 },
+ .hback_porch = { 1, 1, 1 },
+ .hsync_len = { 1, 1, 1 },
+ .vactive = { 1405, 1405, 1405 },
+ .vfront_porch = { 1, 1, 1 },
+ .vback_porch = { 1, 1, 1 },
+ .vsync_len = { 1, 1, 1 },
+ .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+ DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
+};
+
+static const struct panel_desc eink_vb3300_kca = {
+ .modes = &edt_etm0700g0dh6_mode,
+ .num_modes = 1,
+ .bpc = 6,
+ .size = {
+ .width = 157,
+ .height = 209,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
+};
+
static const struct display_timing evervision_vgg804821_timing = {
.pixelclock = { 27600000, 33300000, 50000000 },
.hactive = { 800, 800, 800 },
@@ -4232,6 +4258,9 @@ static const struct of_device_id platform_of_match[] = {
}, {
.compatible = "edt,etm0700g0dh6",
.data = &edt_etm0700g0dh6,
+ }, {
+ .compatible = "eink,vb3300-kca",
+ .data = &eink_vb3300_kca,
}, {
.compatible = "edt,etm0700g0bdh6",
.data = &edt_etm0700g0bdh6,
--
2.31.1

2021-04-22 01:28:15

by Rob Herring (Arm)

Subject: Re: [PATCH 2/2] drm/panel: Add support for E Ink VB3300-KCA

On Mon, Apr 19, 2021 at 07:09:56AM +1000, Alistair Francis wrote:
> Add support for the 10.3" E Ink panel described at:
> https://www.eink.com/product.html?type=productdetail&id=7
>
> Signed-off-by: Alistair Francis <[email protected]>
> ---
> 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 4e2dad314c79..f1f6fd2517f6 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1964,6 +1964,32 @@ static const struct panel_desc edt_etm0700g0bdh6 = {
> .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
> };
>
> +static const struct display_timing eink_vb3300_kca_timing = {
> + .pixelclock = { 40000000, 40000000, 40000000 },
> + .hactive = { 334, 334, 334 },
> + .hfront_porch = { 1, 1, 1 },
> + .hback_porch = { 1, 1, 1 },
> + .hsync_len = { 1, 1, 1 },
> + .vactive = { 1405, 1405, 1405 },
> + .vfront_porch = { 1, 1, 1 },
> + .vback_porch = { 1, 1, 1 },
> + .vsync_len = { 1, 1, 1 },
> + .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
> + DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
> +};
> +
> +static const struct panel_desc eink_vb3300_kca = {
> + .modes = &edt_etm0700g0dh6_mode,
> + .num_modes = 1,
> + .bpc = 6,
> + .size = {
> + .width = 157,
> + .height = 209,
> + },
> + .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
> +};
> +
> static const struct display_timing evervision_vgg804821_timing = {
> .pixelclock = { 27600000, 33300000, 50000000 },
> .hactive = { 800, 800, 800 },
> @@ -4232,6 +4258,9 @@ static const struct of_device_id platform_of_match[] = {
> }, {
> .compatible = "edt,etm0700g0dh6",
> .data = &edt_etm0700g0dh6,
> + }, {
> + .compatible = "eink,vb3300-kca",

You have to document this string too.

2021-04-22 01:28:18

by Rob Herring (Arm)

Subject: Re: [PATCH 1/2] dt-bindings: Add E Ink to vendor bindings

On Mon, 19 Apr 2021 07:09:55 +1000, Alistair Francis wrote:
> Add the E Ink Corporation to the vendor bindings.
>
> Signed-off-by: Alistair Francis <[email protected]>
> ---
> Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>

Acked-by: Rob Herring <[email protected]>