Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2f50bf1d authored by Chun Zhang's avatar Chun Zhang
Browse files

ARM: dts: msm: Update flash LED headroom and startup delay 



Per PMIC system suggestion, headroom should be set to 500mV and
startup delay should be set to 128us to avoid any potential issue.

Change-Id: Iae8d866adde573ddf775b528896dd9a5e9bcd9dd
Signed-off-by: default avatarChun Zhang <chunz@codeaurora.org>
parent e6edf782

Documentation/devicetree/bindings/leds/leds-qpnp.txt

+2 −2
Original line number Diff line number Diff line
@@ -38,10 +38,10 @@ Optional properties for WLED: 
Flash is used primarily as a camera or video flash.



Optional properties for flash:

- qcom,headroom: headroom to use, mV

- qcom,headroom: headroom to use. Values should be 0, 1, 2, 3 for 250mV, 300mV, 400mV and 500mV

- qcom,duration: duration of the flash and torch, 10ms - 1280ms for flash and 2s - 33s for torch

- qcom,clamp-curr: current to clamp at, mA

- qcom,startup-dly: delay before flashing after flash executed, us

- qcom,startup-dly: delay before flashing after flash executed. Values should 0, 1, 2, 3 for 10us, 32us, 64us, and 128us

- qcom,saftey-timer: include for safety timer use, otherwise watchdog timer will be used

- linux,default-trigger: trigger the led from external modules such as display

- qcom,default-state:  default state of the led, should be "on" or "off"

arch/arm/boot/dts/msm-pm8226.dtsi

+4 −4
Original line number Diff line number Diff line
@@ -833,10 +833,10 @@ 
			pm8226_flash0: qcom,flash_0 {

				qcom,max-current = <1000>;

				qcom,default-state = "off";

				qcom,headroom = <0>;

				qcom,headroom = <3>;

				qcom,duration = <1280>;

				qcom,clamp-curr = <200>;

				qcom,startup-dly = <1>;

				qcom,startup-dly = <3>;

				qcom,safety-timer;

				label = "flash";

				linux,default-trigger =
@@ -849,10 +849,10 @@ 
			pm8226_flash1: qcom,flash_1 {

				qcom,max-current = <1000>;

				qcom,default-state = "off";

				qcom,headroom = <0>;

				qcom,headroom = <3>;

				qcom,duration = <1280>;

				qcom,clamp-curr = <200>;

				qcom,startup-dly = <1>;

				qcom,startup-dly = <3>;

				qcom,safety-timer;

				linux,default-trigger =

						"flash1_trigger";