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- From 7ca1ee604c2269389ee00990dd8f7c375df3be06 Mon Sep 17 00:00:00 2001
- From: Chris Morgan <[email protected]>
- Date: Fri, 28 Jan 2022 17:39:54 -0600
- Subject: [PATCH] drm/vc4: dpi: Support DPI interface in mode3 for
- RGB565
- Add support for the VC4 DPI driver to utilize DPI mode 3. This is
- defined here as xxxRRRRRxxGGGGGGxxxBBBBB:
- https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#parallel-display-interface-dpi
- This mode is required to use the Geekworm MZP280 DPI display.
- Signed-off-by: Chris Morgan <[email protected]>
- Reviewed-by: Dave Stevenson <[email protected]>
- ---
- drivers/gpu/drm/vc4/vc4_dpi.c | 4 ++++
- 1 file changed, 4 insertions(+)
- --- a/drivers/gpu/drm/vc4/vc4_dpi.c
- +++ b/drivers/gpu/drm/vc4/vc4_dpi.c
- @@ -189,6 +189,10 @@ static void vc4_dpi_encoder_enable(struc
- dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_1,
- DPI_FORMAT);
- break;
- + case MEDIA_BUS_FMT_RGB565_1X24_CPADHI:
- + dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_2,
- + DPI_FORMAT);
- + break;
- }
- } else {
- /* Default to 18bit if no connector found. */
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