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Message-Id: <20221013-rpi-dpi-improvements-v3-4-eb76e26a772d@cerno.tech>
Date: Thu, 01 Dec 2022 09:42:49 +0100
From: Maxime Ripard <maxime@...no.tech>
To: Maxime Ripard <mripard@...nel.org>,
Daniel Vetter <daniel@...ll.ch>, Rob Herring <robh@...nel.org>,
David Airlie <airlied@...ux.ie>, Emma Anholt <emma@...olt.net>,
Eric Anholt <eric@...olt.net>
Cc: Dave Stevenson <dave.stevenson@...pberrypi.com>,
Maxime Ripard <maxime@...no.tech>,
dri-devel@...ts.freedesktop.org,
Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
Chris Morgan <macromorgan@...mail.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Joerg Quinten <aBUGSworstnightmare@...il.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 4/7] drm/vc4: dpi: Support RGB565 format
From: Chris Morgan <macromorgan@...mail.com>
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@...pberrypi.com>
Signed-off-by: Chris Morgan <macromorgan@...mail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Maxime Ripard <maxime@...no.tech>
---
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
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