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Commit 9916594f authored by Rajeev Nandan's avatar Rajeev Nandan
Browse files

ARM: dts: msm: delay backlight update until first frame on Blair 

If a DSI DMA command is triggered after enabling the timing
engine and just before the first Vsync, it can result into
DSI FIFO underflow/overflow errors.

In the current case the backlight DCS command is the one
that is getting triggered just before first vsync during
bridge enable sequence.

We can avoid this by delaying the backlight update command
until first frame. Enable this on Blair and pm6125 variant
of Holi target.

Change-Id: Ic719a323e9b06839e2c729b128306b6d7d2f00a4
parent fa234e27

display/holi-sde-display-cdp-pm6125.dtsi

+2 −0
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ 
	qcom,mdss-dsi-bl-pmic-control-type = "bl_ctrl_dcs";

	qcom,mdss-dsi-bl-min-level = <1>;

	qcom,mdss-dsi-bl-max-level = <255>;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -83,6 +84,7 @@ 
	qcom,mdss-dsi-bl-pmic-control-type = "bl_ctrl_dcs";

	qcom,mdss-dsi-bl-min-level = <1>;

	qcom,mdss-dsi-bl-max-level = <255>;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-te-gpio = <&tlmm 23 0>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};

display/holi-sde-display-mtp-pm6125.dtsi

+2 −0
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ 
	qcom,mdss-dsi-bl-pmic-control-type = "bl_ctrl_dcs";

	qcom,mdss-dsi-bl-min-level = <1>;

	qcom,mdss-dsi-bl-max-level = <255>;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -83,6 +84,7 @@ 
	qcom,mdss-dsi-bl-pmic-control-type = "bl_ctrl_dcs";

	qcom,mdss-dsi-bl-min-level = <1>;

	qcom,mdss-dsi-bl-max-level = <255>;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-te-gpio = <&tlmm 23 0>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};

display/holi-sde-display-qrd-pm6125.dtsi

+6 −0
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ 
	qcom,mdss-brightness-max-level = <255>;

	qcom,mdss-dsi-bl-max-level = <4095>;

	qcom,mdss-dsi-bl-inverted-dbv;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-te-gpio = <&tlmm 23 0>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -81,6 +82,7 @@ 
	qcom,mdss-dsi-bl-min-level = <1>;

	qcom,mdss-brightness-max-level = <255>;

	qcom,mdss-dsi-bl-inverted-dbv;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,mdss-dsi-bl-max-level = <4095>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -92,6 +94,7 @@ 
	qcom,mdss-dsi-bl-max-level = <4095>;

	qcom,mdss-brightness-max-level = <255>;

	qcom,mdss-dsi-bl-inverted-dbv;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -102,6 +105,7 @@ 
	qcom,mdss-dsi-bl-max-level = <4095>;

	qcom,mdss-brightness-max-level = <255>;

	qcom,mdss-dsi-bl-inverted-dbv;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-te-gpio = <&tlmm 23 0>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -113,6 +117,7 @@ 
	qcom,mdss-brightness-max-level = <255>;

	qcom,mdss-dsi-bl-max-level = <4095>;

	qcom,mdss-dsi-bl-inverted-dbv;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,platform-te-gpio = <&tlmm 23 0>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};
@@ -123,6 +128,7 @@ 
	qcom,mdss-dsi-bl-min-level = <1>;

	qcom,mdss-brightness-max-level = <255>;

	qcom,mdss-dsi-bl-inverted-dbv;

	qcom,bl-update-flag = "delay_until_first_frame";

	qcom,mdss-dsi-bl-max-level = <4095>;

	qcom,platform-reset-gpio = <&pmr735a_gpios 2 0>;

};