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msm: mdss: always request for dsi gpios when cont splash is enabled

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When continuous splash screen feature is enabled, the panel is left
turned on by the bootloader. In such cases, we need to request all
the GPIOs used by the DSI driver at probe time. In the current
implementation, the GPIOs are not requested if certain panel specific
flags are set. This results in a bug when an attempt is made to free
these GPIOs when the device is suspended. Fix this by ensuring that
the GPIOs are requested unconditionally.

Change-Id: If0bea80aab819aeafdaaedf81451d5fa64d4e76d
CRs-Fixed: 684253
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
This commit is contained in:
Aravind Venkateswaran 2014-06-26 12:28:22 -07:00 • committed by David Keitel
parent fcedb98b47
commit 1df1a1a1fd
1 changed files with 9 additions and 1 deletions
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10
drivers/video/fbdev/msm/mdss_dsi.c
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@ -112,7 +112,15 @@ static int mdss_dsi_panel_power_on(struct mdss_panel_data *pdata, int enable)
udelay(2000);
}
if (!pdata->panel_info.mipi.lp11_init) {
/*
* If the panel is already on (as part of the cont splash
* screen feature), then we need to request all the GPIOs that
* have already been configured in the bootloader. This needs
* to be done irresepective of whether the lp11_init flag is
* set or not.
*/
if (pdata->panel_info.panel_power_on ||
!pdata->panel_info.mipi.lp11_init) {
if (mdss_dsi_pinctrl_set_state(ctrl_pdata, true))
pr_debug("reset enable: pinctrl not enabled\n");