[PATCH v6] drm/panel: Add support for E Ink VB3300-KCA
Alistair Francis
alistair at alistair23.me
Sun Aug 1 00:47:00 UTC 2021
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 <alistair at alistair23.me>
Acked-by: Rob Herring <robh at kernel.org>
Reviewed-by: Sam Ravnborg <sam at ravnborg.org>
---
v6:
- Rebase on linux-next
.../bindings/display/panel/panel-simple.yaml | 2 ++
.../devicetree/bindings/vendor-prefixes.yaml | 2 ++
drivers/gpu/drm/panel/panel-simple.c | 30 +++++++++++++++++++
3 files changed, 34 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
index 3624363938dd..1f6a04a91a37 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -134,6 +134,8 @@ properties:
# Emerging Display Technology Corp. 5.7" VGA TFT LCD panel with
# capacitive touch
- edt,etmv570g2dhu
+ # E Ink VB3300-KCA
+ - eink,vb3300-kca
# Evervision Electronics Co. Ltd. VGG804821 5.0" WVGA TFT LCD Panel
- evervision,vgg804821
# Foxlink Group 5" WVGA TFT LCD panel
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 62cb1d9341f5..e2291aee435d 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -339,6 +339,8 @@ patternProperties:
description: eGalax_eMPIA Technology Inc
"^einfochips,.*":
description: Einfochips
+ "^eink,.*":
+ description: E Ink Corporation
"^elan,.*":
description: Elan Microelectronic Corp.
"^element14,.*":
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 461794ae4188..3af7068838d3 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -2146,6 +2146,33 @@ static const struct panel_desc edt_etmv570g2dhu = {
.connector_type = DRM_MODE_CONNECTOR_DPI,
};
+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 = {
+ .timings = &eink_vb3300_kca_timing,
+ .num_timings = 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,
+ .connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
static const struct display_timing evervision_vgg804821_timing = {
.pixelclock = { 27600000, 33300000, 50000000 },
.hactive = { 800, 800, 800 },
@@ -4486,6 +4513,9 @@ static const struct of_device_id platform_of_match[] = {
}, {
.compatible = "edt,etmv570g2dhu",
.data = &edt_etmv570g2dhu,
+ }, {
+ .compatible = "eink,vb3300-kca",
+ .data = &eink_vb3300_kca,
}, {
.compatible = "evervision,vgg804821",
.data = &evervision_vgg804821,
--
2.31.1
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