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drm/vc4: dpi: Support RGB565 format

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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@raspberrypi.com>
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20221013-rpi-dpi-improvements-v3-4-eb76e26a772d@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Chris Morgan
2022-12-01 09:42:49 +01:00
committed by Maxime Ripard
parent 1113f644c4
commit 11fb69c753
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/vc4/vc4_dpi.c
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@@ -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);