From: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
Add the SPMI regulator node in the PMI8994, use it to give us VDD_GX
at a fixed max nominal voltage for the db820c and specify this as supply
for the MMSS GPU_GX GDSC.
With the introduction of CPR support the range for VDD_GX should be
expanded.
Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
[bjorn: Split between pmi8994 and db820c, changed voltage, rewrote commit message]
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
---
Changes since v1:
- Polished commit message
- vdd_gfx -> vdd-gfx
arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 14 ++++++++++++++
arch/arm64/boot/dts/qcom/pmi8994.dtsi | 6 ++++++
2 files changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 4692b7ad16b7..fc23b381c5e4 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -251,6 +251,10 @@ &mdss {
status = "okay";
};
+&mmcc {
+ vdd-gfx-supply = <&vdd_gfx>;
+};
+
&msmgpio {
gpio-line-names =
"[SPI0_DOUT]", /* GPIO_0, BLSP1_SPI_MOSI, LSEC pin 14 */
@@ -688,6 +692,16 @@ pinconf {
};
};
+
+&pmi8994_spmi_regulators {
+ vdd_gfx: s2@1700 {
+ reg = <0x1700 0x100>;
+ regulator-name = "VDD_GFX";
+ regulator-min-microvolt = <980000>;
+ regulator-max-microvolt = <980000>;
+ };
+};
+
&rpm_requests {
pm8994-regulators {
compatible = "qcom,rpm-pm8994-regulators";
diff --git a/arch/arm64/boot/dts/qcom/pmi8994.dtsi b/arch/arm64/boot/dts/qcom/pmi8994.dtsi
index 21e05215abe4..e5ed28ab9b2d 100644
--- a/arch/arm64/boot/dts/qcom/pmi8994.dtsi
+++ b/arch/arm64/boot/dts/qcom/pmi8994.dtsi
@@ -26,5 +26,11 @@ pmic@3 {
reg = <0x3 SPMI_USID>;
#address-cells = <1>;
#size-cells = <0>;
+
+ pmi8994_spmi_regulators: regulators {
+ compatible = "qcom,pmi8994-regulators";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
};
};
--
2.24.0
