On 3/7/22 21:52, Geert Uytterhoeven wrote:
Add support for color-indexed frame buffer formats with two, four, and
sixteen colors to the DRM framebuffer helper functions:
1. Add support for 1, 2, and 4 bits per pixel to the damage helper,
2. For color-indexed modes, the length of the color bitfields must be
set to the color depth, else the logo code may pick a logo with too
many colors. Drop the incorrect DAC width comment, which
originates from the i915 driver.
3. Accept C[124] modes when validating or filling in struct
fb_var_screeninfo, and use the correct number of bits per pixel.
4. Set the visual to FB_VISUAL_PSEUDOCOLOR for all color-indexed
modes.
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
[snip]
static void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
- uint32_t depth)
+ bool is_color_indexed)
{
info->fix.type = FB_TYPE_PACKED_PIXELS;
- info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR :
- FB_VISUAL_TRUECOLOR;
+ info->fix.visual = is_color_indexed ? FB_VISUAL_PSEUDOCOLOR
+ : info->fix.visual;
Shouldn't this be the following instead ?
+ info->fix.visual = is_color_indexed ? FB_VISUAL_PSEUDOCOLOR
+ : FB_VISUAL_TRUECOLOR;
Other than that the patch looks good to me.
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
--
Best regards,
Javier Martinez Canillas
Linux Engineering
Red Hat
