Merge "ARM: dts: msm: Add UFS's Vcc voltage level entry for SDM845"
diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
index 4901fa0..c3e2cab 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -23,6 +23,8 @@
with "phys" attribute, provides phandle to UFS PHY node
- vdd-hba-supply : phandle to UFS host controller supply regulator node
- vcc-supply : phandle to VCC supply regulator node
+- vcc-voltage-level : specifies voltage levels for VCC supply.
+ Should be specified in pairs (min, max), units uV.
- vccq-supply : phandle to VCCQ supply regulator node
- vccq2-supply : phandle to VCCQ2 supply regulator node
- vcc-supply-1p8 : For embedded UFS devices, valid VCC range is 1.7-1.95V
diff --git a/arch/arm64/boot/dts/qcom/sdm845-cdp.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cdp.dtsi
index dddf1fb..fe19658 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cdp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cdp.dtsi
@@ -110,6 +110,7 @@
vdd-hba-supply = <&ufs_phy_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l20>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <600000>;
vccq2-max-microamp = <600000>;
@@ -146,6 +147,7 @@
vdd-hba-supply = <&ufs_card_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l21>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <300000>;
vccq2-max-microamp = <300000>;
diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dtsi b/arch/arm64/boot/dts/qcom/sdm845-mtp.dtsi
index c6abee1..3756197 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dtsi
@@ -198,6 +198,7 @@
vdd-hba-supply = <&ufs_phy_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l20>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <600000>;
vccq2-max-microamp = <600000>;
@@ -234,6 +235,7 @@
vdd-hba-supply = <&ufs_card_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l21>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <300000>;
vccq2-max-microamp = <300000>;
diff --git a/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi b/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi
index 8993ff9..02f30fd 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-qrd.dtsi
@@ -115,6 +115,7 @@
vdd-hba-supply = <&ufs_phy_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l20>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <600000>;
vccq2-max-microamp = <600000>;
@@ -151,6 +152,7 @@
vdd-hba-supply = <&ufs_card_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l21>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <300000>;
vccq2-max-microamp = <300000>;
diff --git a/arch/arm64/boot/dts/qcom/sdm845-rumi.dtsi b/arch/arm64/boot/dts/qcom/sdm845-rumi.dtsi
index e7fd8a0..99004bf 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-rumi.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-rumi.dtsi
@@ -33,6 +33,7 @@
vdd-hba-supply = <&ufs_phy_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l20>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <600000>;
vccq2-max-microamp = <600000>;
@@ -157,6 +158,7 @@
vdd-hba-supply = <&ufs_card_gdsc>;
vdd-hba-fixed-regulator;
vcc-supply = <&pm8998_l21>;
+ vcc-voltage-level = <2950000 2960000>;
vccq2-supply = <&pm8998_s4>;
vcc-max-microamp = <300000>;
vccq2-max-microamp = <300000>;
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 7c5a1bc..f5a6736 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -144,10 +144,11 @@
static int ufshcd_populate_vreg(struct device *dev, const char *name,
struct ufs_vreg **out_vreg)
{
- int ret = 0;
+ int len, ret = 0;
char prop_name[MAX_PROP_SIZE];
struct ufs_vreg *vreg = NULL;
struct device_node *np = dev->of_node;
+ const __be32 *prop;
if (!np) {
dev_err(dev, "%s: non DT initialization\n", __func__);
@@ -186,8 +187,16 @@
vreg->min_uV = UFS_VREG_VCC_1P8_MIN_UV;
vreg->max_uV = UFS_VREG_VCC_1P8_MAX_UV;
} else {
- vreg->min_uV = UFS_VREG_VCC_MIN_UV;
- vreg->max_uV = UFS_VREG_VCC_MAX_UV;
+ prop = of_get_property(np, "vcc-voltage-level", &len);
+ if (!prop || (len != (2 * sizeof(__be32)))) {
+ dev_warn(dev, "%s vcc-voltage-level property.\n",
+ prop ? "invalid format" : "no");
+ vreg->min_uV = UFS_VREG_VCC_MIN_UV;
+ vreg->max_uV = UFS_VREG_VCC_MAX_UV;
+ } else {
+ vreg->min_uV = be32_to_cpup(&prop[0]);
+ vreg->max_uV = be32_to_cpup(&prop[1]);
+ }
}
} else if (!strcmp(name, "vccq")) {
vreg->min_uV = UFS_VREG_VCCQ_MIN_UV;