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32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
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From 7ca1ee604c2269389ee00990dd8f7c375df3be06 Mon Sep 17 00:00:00 2001
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From: Chris Morgan <macromorgan@hotmail.com>
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Date: Fri, 28 Jan 2022 17:39:54 -0600
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Subject: [PATCH] drm/vc4: dpi: Support DPI interface in mode3 for
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RGB565
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Add support for the VC4 DPI driver to utilize DPI mode 3. This is
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defined here as xxxRRRRRxxGGGGGGxxxBBBBB:
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https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#parallel-display-interface-dpi
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This mode is required to use the Geekworm MZP280 DPI display.
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Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
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Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_dpi.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_dpi.c
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+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
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@@ -191,6 +191,10 @@ static void vc4_dpi_encoder_enable(struc
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dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_3,
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DPI_FORMAT);
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break;
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+ case MEDIA_BUS_FMT_RGB565_1X24_CPADHI:
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+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_2,
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+ DPI_FORMAT);
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+ break;
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}
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} else {
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/* Default to 18bit if no connector found. */
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