[PATCH v2 4/7] drm/vc4: dpi: Support RGB565 format

From: Maxime Ripard
Date: Thu Oct 20 2022 - 04:51:26 EST


From: Chris Morgan <macromorgan@xxxxxxxxxxx>

The RGB565 format with padding over 24 bits
(MEDIA_BUS_FMT_RGB565_1X24_CPADHI) is supported by the vc4 DPI
controller. This is what the Geekworm MZP280 DPI display uses, so let's
add support for it in the DPI controller driver.

Reviewed-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Signed-off-by: Chris Morgan <macromorgan@xxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_dpi.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c
index 1f8f44b7b5a5..7da3dd1db50e 100644
--- a/drivers/gpu/drm/vc4/vc4_dpi.c
+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
@@ -182,6 +182,10 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder)
dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_3,
DPI_FORMAT);
break;
+ case MEDIA_BUS_FMT_RGB565_1X24_CPADHI:
+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_2,
+ DPI_FORMAT);
+ break;
default:
DRM_ERROR("Unknown media bus format %d\n",
bus_format);

--
b4 0.10.1