[PATCH v3] drm/imx: dc-plane: Add more RGB swizzling options

[Marek Vasut]

Add additional buffer format swizzling options beyond XR24, the
hardware is capable of sampling other formats, fill them in.

Signed-off-by: Marek Vasut <marek.vasut at mailbox.org>
---
Cc: Abel Vesa <abelvesa at kernel.org>
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart at ideasonboard.com>
Cc: Liu Ying <victor.liu at nxp.com>
Cc: Lucas Stach <l.stach at pengutronix.de>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Rob Herring <robh at kernel.org>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: devicetree at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Cc: imx at lists.linux.dev
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-clk at vger.kernel.org
---
V2: - Adjust commit subject
    - Drop the alpha formats for now, add RGB888/BGR888 to dc_plane_formats[]
V3: - Drop even more formats for now, because they do not work with
      prefetch engine, which seems currently unimplemented.
---
 drivers/gpu/drm/imx/dc/dc-fu.c    | 16 ++++++++++++++++
 drivers/gpu/drm/imx/dc/dc-plane.c |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/imx/dc/dc-fu.c b/drivers/gpu/drm/imx/dc/dc-fu.c
index 1d8f74babef8a..8a2c1c2a54d2c 100644
--- a/drivers/gpu/drm/imx/dc/dc-fu.c
+++ b/drivers/gpu/drm/imx/dc/dc-fu.c
@@ -65,6 +65,22 @@ static const struct dc_fu_pixel_format pixel_formats[] = {
 		DRM_FORMAT_XRGB8888,
 		R_BITS(8)   | G_BITS(8)   | B_BITS(8)   | A_BITS(0),
 		R_SHIFT(16) | G_SHIFT(8)  | B_SHIFT(0)  | A_SHIFT(0),
+	}, {
+		DRM_FORMAT_XBGR8888,
+		R_BITS(8)   | G_BITS(8)   | B_BITS(8)   | A_BITS(0),
+		R_SHIFT(0)  | G_SHIFT(8)  | B_SHIFT(16) | A_SHIFT(0),
+	}, {
+		DRM_FORMAT_RGBX8888,
+		R_BITS(8)   | G_BITS(8)   | B_BITS(8)   | A_BITS(0),
+		R_SHIFT(24) | G_SHIFT(16) | B_SHIFT(8)  | A_SHIFT(0),
+	}, {
+		DRM_FORMAT_BGRX8888,
+		R_BITS(8)   | G_BITS(8)   | B_BITS(8)   | A_BITS(0),
+		R_SHIFT(8)  | G_SHIFT(16) | B_SHIFT(24) | A_SHIFT(0),
+	}, {
+		DRM_FORMAT_RGB565,
+		R_BITS(5)   | G_BITS(6)   | B_BITS(5)   | A_BITS(0),
+		R_SHIFT(11) | G_SHIFT(5)  | B_SHIFT(0)  | A_SHIFT(0),
 	},
 };
 
diff --git a/drivers/gpu/drm/imx/dc/dc-plane.c b/drivers/gpu/drm/imx/dc/dc-plane.c
index e40d5d66c5c1f..2f009a5a1fb3c 100644
--- a/drivers/gpu/drm/imx/dc/dc-plane.c
+++ b/drivers/gpu/drm/imx/dc/dc-plane.c
@@ -33,6 +33,10 @@ do {									\
 
 static const uint32_t dc_plane_formats[] = {
 	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGBX8888,
+	DRM_FORMAT_BGRX8888,
+	DRM_FORMAT_RGB565,
 };
 
 static const struct drm_plane_funcs dc_plane_funcs = {
-- 
2.51.0