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| author | Stuart Menefy <stuart.menefy@mathembedded.com> | 2022-09-08 18:51:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-23 15:16:57 +0300 |
| commit | 4d3d2e384b227cb2020d760cdddf8ab3a545b4a5 (patch) | |
| tree | da45e57f35beda238d42fd04fb0c9fb249d3fd8a | |
| parent | 24196210b198e8e39296e277bb93b362aa207775 (diff) | |
| download | linux-4d3d2e384b227cb2020d760cdddf8ab3a545b4a5.tar.xz | |
drm/meson: Correct OSD1 global alpha value
[ Upstream commit 6836829c8ea453c9e3e518e61539e35881c8ed5f ]
VIU_OSD1_CTRL_STAT.GLOBAL_ALPHA is a 9 bit field, so the maximum
value is 0x100 not 0xff.
This matches the vendor kernel.
Signed-off-by: Stuart Menefy <stuart.menefy@mathembedded.com>
Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908155103.686904-1-stuart.menefy@mathembedded.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/meson/meson_plane.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c index 35338ed18209..255c6b863f8d 100644 --- a/drivers/gpu/drm/meson/meson_plane.c +++ b/drivers/gpu/drm/meson/meson_plane.c @@ -163,7 +163,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane, /* Enable OSD and BLK0, set max global alpha */ priv->viu.osd1_ctrl_stat = OSD_ENABLE | - (0xFF << OSD_GLOBAL_ALPHA_SHIFT) | + (0x100 << OSD_GLOBAL_ALPHA_SHIFT) | OSD_BLK0_ENABLE; priv->viu.osd1_ctrl_stat2 = readl(priv->io_base + |