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drm/gud: Add GUD_PIXEL_FORMAT_RGB332

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Add support for the RGB332 pixel format.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210929191201.34456-6-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes 2021-09-29 21:12:00 +02:00
parent 4cabfedc09
commit 1f25d00542
4 changed files with 9 additions and 0 deletions
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2
drivers/gpu/drm/gud/gud_drv.c
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@ -526,6 +526,8 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id)
case DRM_FORMAT_R8:
fallthrough;
case GUD_DRM_FORMAT_XRGB1111:
fallthrough;
case DRM_FORMAT_RGB332:
if (!xrgb8888_emulation_format)
xrgb8888_emulation_format = info;
break;

4
drivers/gpu/drm/gud/gud_internal.h
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@ -84,6 +84,8 @@ static inline u8 gud_from_fourcc(u32 fourcc)
return GUD_PIXEL_FORMAT_R8;
case GUD_DRM_FORMAT_XRGB1111:
return GUD_PIXEL_FORMAT_XRGB1111;
case DRM_FORMAT_RGB332:
return GUD_PIXEL_FORMAT_RGB332;
case DRM_FORMAT_RGB565:
return GUD_PIXEL_FORMAT_RGB565;
case DRM_FORMAT_XRGB8888:
@ -104,6 +106,8 @@ static inline u32 gud_to_fourcc(u8 format)
return DRM_FORMAT_R8;
case GUD_PIXEL_FORMAT_XRGB1111:
return GUD_DRM_FORMAT_XRGB1111;
case GUD_PIXEL_FORMAT_RGB332:
return DRM_FORMAT_RGB332;
case GUD_PIXEL_FORMAT_RGB565:
return DRM_FORMAT_RGB565;
case GUD_PIXEL_FORMAT_XRGB8888:

2
drivers/gpu/drm/gud/gud_pipe.c
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@ -191,6 +191,8 @@ retry:
}
} else if (format->format == DRM_FORMAT_R8) {
drm_fb_xrgb8888_to_gray8(buf, vaddr, fb, rect);
} else if (format->format == DRM_FORMAT_RGB332) {
drm_fb_xrgb8888_to_rgb332(buf, vaddr, fb, rect);
} else if (format->format == DRM_FORMAT_RGB565) {
drm_fb_xrgb8888_to_rgb565(buf, vaddr, fb, rect, gud_is_big_endian());
} else {

1
include/drm/gud.h
View File

@ -249,6 +249,7 @@ struct gud_state_req {
#define GUD_PIXEL_FORMAT_R1 0x01 /* 1-bit monochrome */
#define GUD_PIXEL_FORMAT_R8 0x08 /* 8-bit greyscale */
#define GUD_PIXEL_FORMAT_XRGB1111 0x20
#define GUD_PIXEL_FORMAT_RGB332 0x30
#define GUD_PIXEL_FORMAT_RGB565 0x40
#define GUD_PIXEL_FORMAT_XRGB8888 0x80
#define GUD_PIXEL_FORMAT_ARGB8888 0x81