diff options
| author | Robert Foss <robert.foss@linaro.org> | 2022-12-13 16:03:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-13 16:48:26 +0200 |
| commit | 1fc9263ad79593972a132ea4fcc7530e87e8063e (patch) | |
| tree | 1a90a86e28314cc071207a9c42403516f190e947 | |
| parent | 4bdf1514b4268d29360ba9e43becdd49955bc7ae (diff) | |
drm/bridge: lt9611: Fix PLL being unable to lock
commit 2a9df204be0bbb896e087f00b9ee3fc559d5a608 upstream.
This fixes PLL being unable to lock, and is derived from an equivalent
downstream commit.
Available LT9611 documentation does not list this register, neither does
LT9611UXC (which is a different chip).
This commit has been confirmed to fix HDMI output on DragonBoard 845c.
Suggested-by: Amit Pundir <amit.pundir@linaro.org>
Reviewed-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221213150304.4189760-1-robert.foss@linaro.org
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt9611.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 0c6dea9ccb72..660e05fa4a70 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -256,6 +256,7 @@ static int lt9611_pll_setup(struct lt9611 *lt9611, const struct drm_display_mode { 0x8126, 0x55 }, { 0x8127, 0x66 }, { 0x8128, 0x88 }, + { 0x812a, 0x20 }, }; regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); |