diff options
| author | Rajesh Yadav <ryadav@codeaurora.org> | 2018-06-25 19:12:03 +0530 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2018-07-26 10:40:14 -0400 |
| commit | 7a296796fd0b28dc229d65dd90a6b392852d9631 (patch) | |
| tree | 011ef4a5766f7fb6987eea4b8f30caa19684c39a /drivers/gpu/drm | |
| parent | 8b03ad30e314691f7bfccc0f9fae0dffd498b667 (diff) | |
drm/msm/dsi: initialize postdiv_lock before use for 10nm pll
postdiv_lock spinlock was used before initialization
for 10nm pll. It causes following spin_bug:
"BUG: spinlock bad magic on CPU#0".
Initialize spinlock before its usage.
Changes in v3:
- Added Archit's R-b
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rajesh Yadav <ryadav@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c index c4c37a7df637..4c03f0b7343e 100644 --- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c +++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c @@ -798,6 +798,8 @@ struct msm_dsi_pll *msm_dsi_pll_10nm_init(struct platform_device *pdev, int id) return ERR_PTR(-ENOMEM); } + spin_lock_init(&pll_10nm->postdiv_lock); + pll = &pll_10nm->base; pll->min_rate = 1000000000UL; pll->max_rate = 3500000000UL; |