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msm_fb: display: force mdp clock off at suspend

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At suspend, turn off mdp related clocks off if clocks
are not turned off by vsync disable request.

Change-Id: I0949b00b9ee0aee05b9b553ac7318b647052d94d
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
(cherry picked from commit 780557dc178fc5511f4c03b4840791d27499a5f6)
This commit is contained in:
Kuogee Hsieh 2012-10-31 13:29:48 -07:00 committed by Stephen Boyd
parent fc72ce5619
commit 3288119c79
1 changed files with 11 additions and 5 deletions
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16
drivers/video/msm/mdp4_overlay_dsi_cmd.c
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@ -1046,6 +1046,7 @@ int mdp4_dsi_cmd_off(struct platform_device *pdev)
struct vsync_update *vp;
int undx;
int need_wait, cnt;
unsigned long flags;
pr_debug("%s+: pid=%d\n", __func__, current->pid);
@ -1080,11 +1081,16 @@ int mdp4_dsi_cmd_off(struct platform_device *pdev)
}
}
/* message for system suspnded */
if (cnt > 10)
pr_err("%s:Error, mdp clocks NOT off\n", __func__);
else
pr_debug("%s: mdp clocks off at cnt=%d\n", __func__, cnt);
if (cnt > 10) {
spin_lock_irqsave(&vctrl->spin_lock, flags);
vctrl->clk_control = 0;
vctrl->clk_enabled = 0;
vctrl->expire_tick = 0;
spin_unlock_irqrestore(&vctrl->spin_lock, flags);
mipi_dsi_clk_cfg(0);
mdp_clk_ctrl(0);
pr_err("%s: Error, SET_CLK_OFF by force\n", __func__);
}
/* sanity check, free pipes besides base layer */
mdp4_overlay_unset_mixer(pipe->mixer_num);