evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

msm: mdss: Enable mdp clocks before accessing panic control registers

Browse source 
Crashes are observed during bootup due to unclocked access of Panic
control registers. Take care of the same by enabling appropriate clocks.

Change-Id: Ic8df1f9c3c3928b9a3e9b21d63a5d9bba4f2152c
Signed-off-by: Vishnuvardhan Prodduturi <vproddut@codeaurora.org>
This commit is contained in:
Vishnuvardhan Prodduturi 2014-07-04 17:07:15 +05:30 • committed by David Keitel
parent 022d7ffdfd
commit 23305791cc
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/video/fbdev/msm/mdss_mdp_pipe.c
View file

@ -61,6 +61,7 @@ int mdss_mdp_pipe_panic_signal_ctrl(struct mdss_mdp_pipe *pipe, bool enable)
if (!mdata->has_panic_ctrl)
goto end;
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON);
panic_robust_ctrl = readl_relaxed(mdata->mdp_base +
MMSS_MDP_PANIC_ROBUST_CTRL);
if (enable)
@ -69,6 +70,7 @@ int mdss_mdp_pipe_panic_signal_ctrl(struct mdss_mdp_pipe *pipe, bool enable)
panic_robust_ctrl &= ~BIT(pipe->panic_ctrl_ndx);
writel_relaxed(panic_robust_ctrl,
mdata->mdp_base + MMSS_MDP_PANIC_ROBUST_CTRL);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF);
end:
return 0;