From 6836829c8ea453c9e3e518e61539e35881c8ed5f Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Thu, 8 Sep 2022 16:51:03 +0100 Subject: [PATCH] drm/meson: Correct OSD1 global alpha value 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 Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller") Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20220908155103.686904-1-stuart.menefy@mathembedded.com --- drivers/gpu/drm/meson/meson_plane.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c index b9ac932..03acc68 100644 --- a/drivers/gpu/drm/meson/meson_plane.c +++ b/drivers/gpu/drm/meson/meson_plane.c @@ -170,7 +170,7 @@ 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 + -- 2.7.4