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Merge "ARM: dts: msm: Vote vccq2 via vccq to support GKI"

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This commit is contained in:
qctecmdr 2021-02-04 04:20:33 -08:00 • committed by Gerrit - the friendly Code Review server
commit 6f8e1739cb
3 changed files with 45 additions and 27 deletions
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26
qcom/yupik-atp.dtsi
View file

@ -70,20 +70,26 @@
vcc-low-voltage-sup;
vcc-max-microamp = <800000>;
/*
* Yupik target supports both UFS2.2 & UFS3.1, here
* vccq2 is supplied via eLDO, and that is controlled via
* L9B which supports a max voltage of 1.2V, but eLDO would
* supply 1.8V. and same L9B acts as vccq voltage for UFS3.1
* devices.
* Here L9B can max support for 1.2V but UFS GKI driver code
* votes for 1.8V, which is leading to failure from pmic
* regulator.
*
* Now since vccq and control of eLDO are common that is L9B
* we can use vccq vote as control of eLDO for vccq2.
* Hence vccq entries shall be used for both type of UFS
* devices only. And vccq entries should not be changed/removed
* for any design alteration.
*/
vccq-supply = <&L9B>;
vccq-max-microamp = <900000>;
vccq-min-microamp = <10000>;
/*
* Vccq2 voltage level should be 1.8V but in case of yupik
* vccq2 is supplied via eLDO, and that is controlled via
* L9B which supports a max voltage of 1.2V, but eLDO would
* supply 1.8V.
*/
vccq2-supply = <&L9B>;
vccq2-voltage-level = <1200000 1200000>;
vccq2-max-microamp = <800000>;
qcom,vddp-ref-clk-supply = <&L9B>;
qcom,vddp-ref-clk-max-microamp = <100>;

26
qcom/yupik-idp.dtsi
View file

@ -71,20 +71,26 @@
vcc-low-voltage-sup;
vcc-max-microamp = <800000>;
/*
* Yupik target supports both UFS2.2 & UFS3.1, here
* vccq2 is supplied via eLDO, and that is controlled via
* L9B which supports a max voltage of 1.2V, but eLDO would
* supply 1.8V. and same L9B acts as vccq voltage for UFS3.1
* devices.
* Here L9B can max support for 1.2V but UFS GKI driver code
* votes for 1.8V, which is leading to failure from pmic
* regulator.
*
* Now since vccq and control of eLDO are common that is L9B
* we can use vccq vote as control of eLDO for vccq2.
* Hence vccq entries shall be used for both type of UFS
* devices only. And vccq entries should not be changed/removed
* for any design alteration.
*/
vccq-supply = <&L9B>;
vccq-max-microamp = <900000>;
vccq-min-microamp = <10000>;
/*
* Vccq2 voltage level should be 1.8V but in case of yupik
* vccq2 is supplied via eLDO, and that is controlled via
* L9B which supports a max voltage of 1.2V, but eLDO would
* supply 1.8V.
*/
vccq2-supply = <&L9B>;
vccq2-voltage-level = <1200000 1200000>;
vccq2-max-microamp = <800000>;
qcom,vddp-ref-clk-supply = <&L9B>;
qcom,vddp-ref-clk-max-microamp = <100>;

26
qcom/yupik-qrd.dtsi
View file

@ -72,20 +72,26 @@
vcc-low-voltage-sup;
vcc-max-microamp = <800000>;
/*
* Yupik target supports both UFS2.2 & UFS3.1, here
* vccq2 is supplied via eLDO, and that is controlled via
* L9B which supports a max voltage of 1.2V, but eLDO would
* supply 1.8V. and same L9B acts as vccq voltage for UFS3.1
* devices.
* Here L9B can max support for 1.2V but UFS GKI driver code
* votes for 1.8V, which is leading to failure from pmic
* regulator.
*
* Now since vccq and control of eLDO are common that is L9B
* we can use vccq vote as control of eLDO for vccq2.
* Hence vccq entries shall be used for both type of UFS
* devices only. And vccq entries should not be changed/removed
* for any design alteration.
*/
vccq-supply = <&L9B>;
vccq-max-microamp = <900000>;
vccq-min-microamp = <10000>;
/*
* Vccq2 voltage level should be 1.8V but in case of yupik
* vccq2 is supplied via eLDO, and that is controlled via
* L9B which supports a max voltage of 1.2V, but eLDO would
* supply 1.8V.
*/
vccq2-supply = <&L9B>;
vccq2-voltage-level = <1200000 1200000>;
vccq2-max-microamp = <800000>;
qcom,vddp-ref-clk-supply = <&L9B>;
qcom,vddp-ref-clk-max-microamp = <100>;