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drm/msm/dsi: initialize postdiv_lock before use for 10nm pll

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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>
This commit is contained in:
Rajesh Yadav 2018-06-25 19:12:03 +05:30 committed by Sean Paul
parent 8b03ad30e3
commit 7a296796fd
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c
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@ -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;