diff options
| author | Dhaval Patel <pdhaval@codeaurora.org> | 2016-04-19 11:45:56 -0700 |
|---|---|---|
| committer | Harsh Sahu <hsahu@codeaurora.org> | 2016-11-11 12:07:41 -0800 |
| commit | a42b1f1045e66dc13b38e1c00a75fe1859d7745d (patch) | |
| tree | 75225f4c5bccc8b2b57ee2f03267e93d67505973 /drivers | |
| parent | 5d2b103d523f4651e9f7101d003ba1377f699206 (diff) | |
msm: mdss: turn off the phy during idle pc only if panel supports
Commit ff19fe24e621ae5dc90f7e45fe4cfe159a647d15 ("mdss:
dsi: turn off phy power supply during static screen")
turns off the dsi phy during idle pc for phy rev 2.0. DSI
lanes are in floating state after dsi phy power off and
all panels may not be able to handle it. This change
allows to turn on the feature based on panel capability.
Change-Id: I9b166df254128a8a53c567f88971779b9ad0f36c
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_dsi_panel.c | 3 | ||||
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_panel.h | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/msm/msm_mdss_io_8974.c | 15 |
3 files changed, 16 insertions, 3 deletions
diff --git a/drivers/video/fbdev/msm/mdss_dsi_panel.c b/drivers/video/fbdev/msm/mdss_dsi_panel.c index 7c36bb627043..8fbf2544f487 100644 --- a/drivers/video/fbdev/msm/mdss_dsi_panel.c +++ b/drivers/video/fbdev/msm/mdss_dsi_panel.c @@ -1960,6 +1960,9 @@ static int mdss_dsi_parse_panel_features(struct device_node *np, pinfo->panel_ack_disabled = pinfo->sim_panel_mode ? 1 : of_property_read_bool(np, "qcom,panel-ack-disabled"); + pinfo->allow_phy_power_off = of_property_read_bool(np, + "qcom,panel-allow-phy-poweroff"); + mdss_dsi_parse_esd_params(np, ctrl); if (pinfo->panel_ack_disabled && pinfo->esd_check_enabled) { diff --git a/drivers/video/fbdev/msm/mdss_panel.h b/drivers/video/fbdev/msm/mdss_panel.h index 0483e3d42873..238b26eec769 100644 --- a/drivers/video/fbdev/msm/mdss_panel.h +++ b/drivers/video/fbdev/msm/mdss_panel.h @@ -761,6 +761,7 @@ struct mdss_panel_info { bool ulps_suspend_enabled; bool panel_ack_disabled; bool esd_check_enabled; + bool allow_phy_power_off; char dfps_update; /* new requested fps before it is updated in hw */ int new_fps; diff --git a/drivers/video/fbdev/msm/msm_mdss_io_8974.c b/drivers/video/fbdev/msm/msm_mdss_io_8974.c index 0c43a2642ede..fdd888edc2fb 100644 --- a/drivers/video/fbdev/msm/msm_mdss_io_8974.c +++ b/drivers/video/fbdev/msm/msm_mdss_io_8974.c @@ -960,13 +960,22 @@ static void mdss_dsi_8996_phy_power_off( static void mdss_dsi_phy_power_off( struct mdss_dsi_ctrl_pdata *ctrl) { + struct mdss_panel_info *pinfo; + if (ctrl->phy_power_off) return; - /* supported for phy rev 2.0 */ - if (ctrl->shared_data->phy_rev != DSI_PHY_REV_20) + pinfo = &ctrl->panel_data.panel_info; + + if ((ctrl->shared_data->phy_rev != DSI_PHY_REV_20) || + !pinfo->allow_phy_power_off) { + pr_debug("%s: ctrl%d phy rev:%d panel support for phy off:%d\n", + __func__, ctrl->ndx, ctrl->shared_data->phy_rev, + pinfo->allow_phy_power_off); return; + } + /* supported for phy rev 2.0 and if panel allows it*/ mdss_dsi_8996_phy_power_off(ctrl); ctrl->phy_power_off = true; @@ -1003,7 +1012,7 @@ static void mdss_dsi_8996_phy_power_on( static void mdss_dsi_phy_power_on( struct mdss_dsi_ctrl_pdata *ctrl, bool mmss_clamp) { - if (mmss_clamp && (ctrl->shared_data->phy_rev != DSI_PHY_REV_20)) + if (mmss_clamp && !ctrl->phy_power_off) mdss_dsi_phy_init(ctrl); else if ((ctrl->shared_data->phy_rev == DSI_PHY_REV_20) && ctrl->phy_power_off) |