diff options
| author | Aravind Venkateswaran <aravindh@codeaurora.org> | 2014-04-10 18:50:49 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:29:00 -0700 |
| commit | 69628ef468b16797c313b0433e1dc1118933ce65 (patch) | |
| tree | 4c9273077fbd2938ec276efa4467d8ee01525b27 /drivers/video/fbdev | |
| parent | f35b84639d47faf56275734ba5955d715fdff076 (diff) | |
msm: mdss: hold mdp clock ref count when restoring ctl path
MDP control path needs to be restored whenever MDSS GDSC is turned
back on while exiting the utlra-low power state (ULPS). Hold a
reference count for the MDP clocks to ensure that there is no
unclocked register access.
Change-Id: Ia2d299d9db9c23e4c9171cbec8e376908046494b
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp_ctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/fbdev/msm/mdss_mdp_ctl.c b/drivers/video/fbdev/msm/mdss_mdp_ctl.c index a2766770aeb2..2f29de913bc2 100644 --- a/drivers/video/fbdev/msm/mdss_mdp_ctl.c +++ b/drivers/video/fbdev/msm/mdss_mdp_ctl.c @@ -1796,11 +1796,13 @@ void mdss_mdp_ctl_restore(struct mdss_mdp_ctl *ctl) { u32 temp; + mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false); temp = readl_relaxed(ctl->mdata->mdp_base + MDSS_MDP_REG_DISP_INTF_SEL); temp |= (ctl->intf_type << ((ctl->intf_num - MDSS_MDP_INTF0) * 8)); writel_relaxed(temp, ctl->mdata->mdp_base + MDSS_MDP_REG_DISP_INTF_SEL); + mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false); } static int mdss_mdp_ctl_start_sub(struct mdss_mdp_ctl *ctl, bool handoff) |