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| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2025-07-21 12:43:31 +0200 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2025-09-01 15:26:43 +0200 |
| commit | c4baa2d987c025076db8732abf8c44ccb9bcd8df (patch) | |
| tree | c90b68c7b01cecbccec0c5e576e2eb30a2bbdfdc | |
| parent | drm/imagination: Enable PowerVR driver for RISC-V (diff) | |
| download | linux-c4baa2d987c025076db8732abf8c44ccb9bcd8df.tar.gz linux-c4baa2d987c025076db8732abf8c44ccb9bcd8df.zip | |
drm/st7571-i2c: correct pixel data format description
The comment describes the pixel data format as stated in
the st7571 datasheet, which is not necessary the same
as for the connected display.
Instead, describe the expected pixel data format which is used for
R1/R2/XRGB8888.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://lore.kernel.org/r/20250721-st7571-format-v2-1-159f4134098c@gmail.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/sitronix/st7571-i2c.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/sitronix/st7571-i2c.c b/drivers/gpu/drm/sitronix/st7571-i2c.c index dda99cbe5372..6f8142943428 100644 --- a/drivers/gpu/drm/sitronix/st7571-i2c.c +++ b/drivers/gpu/drm/sitronix/st7571-i2c.c @@ -386,10 +386,10 @@ static int st7571_fb_update_rect_grayscale(struct drm_framebuffer *fb, struct dr * even if the format is monochrome. * * The bit values maps to the following grayscale: - * 0 0 = White - * 0 1 = Light gray - * 1 0 = Dark gray - * 1 1 = Black + * 0 0 = Black + * 0 1 = Dark gray + * 1 0 = Light gray + * 1 1 = White * * For monochrome formats, write the same value twice to get * either a black or white pixel. |