diff options
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_dsi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/video/fbdev/msm/mdss_dsi.c b/drivers/video/fbdev/msm/mdss_dsi.c index 05da1a981d59..21e414844100 100644 --- a/drivers/video/fbdev/msm/mdss_dsi.c +++ b/drivers/video/fbdev/msm/mdss_dsi.c @@ -1276,7 +1276,15 @@ int mdss_dsi_on(struct mdss_panel_data *pdata) */ mdss_dsi_clk_ctrl(ctrl_pdata, ctrl_pdata->dsi_clk_handle, MDSS_DSI_CORE_CLK, MDSS_DSI_CLK_ON); - if (!pdata->panel_info.ulps_suspend_enabled) { + + /* + * If ULPS during suspend feature is enabled, then DSI PHY was + * left on during suspend. In this case, we do not need to reset/init + * PHY. This would have already been done when the CORE clocks are + * turned on. However, if cont splash is disabled, the first time DSI + * is powered on, phy init needs to be done unconditionally. + */ + if (!pdata->panel_info.ulps_suspend_enabled || !ctrl_pdata->ulps) { mdss_dsi_phy_sw_reset(ctrl_pdata); mdss_dsi_phy_init(ctrl_pdata); mdss_dsi_ctrl_setup(ctrl_pdata); |