video: fbdev: msm: add skip-panel-reset dt property
When set, will skip panel reset during panel ON
and OFF. This is needed for panels with in-cell design,
where panel reset will affect touch.
Change-Id: I6525379cf18d179b8c820edf7301810b7fdc858d
Signed-off-by: Venkata Prahlad Valluru <vvalluru@codeaurora.org>
diff --git a/Documentation/devicetree/bindings/fb/mdss-dsi-panel.txt b/Documentation/devicetree/bindings/fb/mdss-dsi-panel.txt
index 240bc5b..41c98e3 100644
--- a/Documentation/devicetree/bindings/fb/mdss-dsi-panel.txt
+++ b/Documentation/devicetree/bindings/fb/mdss-dsi-panel.txt
@@ -521,6 +521,7 @@
in floating state(not LP00 or LP11) to turn on this property. Software
turns off PHY pmic power supply, phy ldo and DSI Lane ldo during
idle screen (footswitch control off) when this property is enabled.
+- qcom,skip-panel-reset: Boolean. when set, will skip panel reset during panel ON/OFF.
[[Optional config sub-nodes]] These subnodes provide different configurations for a given same panel.
Default configuration can be chosen by specifying phandle of the
selected subnode in the qcom,config-select.
diff --git a/drivers/video/fbdev/msm/mdss_dsi_panel.c b/drivers/video/fbdev/msm/mdss_dsi_panel.c
index e46cbfe..7d3009b 100644
--- a/drivers/video/fbdev/msm/mdss_dsi_panel.c
+++ b/drivers/video/fbdev/msm/mdss_dsi_panel.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -425,6 +425,11 @@
return rc;
}
+ if (pinfo->skip_panel_reset && !pinfo->cont_splash_enabled) {
+ pr_debug("%s: skip_panel_reset is set\n", __func__);
+ return 0;
+ }
+
pr_debug("%s: enable = %d\n", __func__, enable);
if (enable) {
@@ -2942,6 +2947,9 @@
pinfo->mipi.force_clk_lane_hs = of_property_read_bool(np,
"qcom,mdss-dsi-force-clock-lane-hs");
+ pinfo->skip_panel_reset =
+ of_property_read_bool(np, "qcom,mdss-skip-panel-reset");
+
rc = mdss_dsi_parse_panel_features(np, ctrl_pdata);
if (rc) {
pr_err("%s: failed to parse panel features\n", __func__);
diff --git a/drivers/video/fbdev/msm/mdss_panel.h b/drivers/video/fbdev/msm/mdss_panel.h
index 0fa242e..e79ae1d 100644
--- a/drivers/video/fbdev/msm/mdss_panel.h
+++ b/drivers/video/fbdev/msm/mdss_panel.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2008-2019, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2008-2020, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -774,6 +774,12 @@
/* persistence mode on/off */
bool persist_mode;
+ /*
+ * Skip panel reset during panel on/off.
+ * Set for some in-cell panels
+ */
+ bool skip_panel_reset;
+
/* HDR properties of display panel*/
struct mdss_panel_hdr_properties hdr_properties;
};