On SM8350 platform the DSI internally is using the refgen regulator. Add
corresponding device node and link it as a supply to the DSI node.

Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8350.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi 
b/arch/arm64/boot/dts/qcom/sm8350.dtsi
index 27f36e6366df..37a2aba0d4ca 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -2251,6 +2251,12 @@ usb_2_hsphy: phy@88e4000 {
                        resets = <&gcc GCC_QUSB2PHY_SEC_BCR>;
                };
 
+               refgen: regulator@88e7000 {
+                       compatible = "qcom,sm8350-refgen-regulator",
+                                    "qcom,sm8250-refgen-regulator";
+                       reg = <0x0 0x088e7000 0x0 0x84>;
+               };
+
                usb_1_qmpphy: phy@88e8000 {
                        compatible = "qcom,sm8350-qmp-usb3-dp-phy";
                        reg = <0 0x088e8000 0 0x3000>;
@@ -2710,6 +2716,7 @@ mdss_dsi0: dsi@ae94000 {
 
                                operating-points-v2 = <&dsi0_opp_table>;
                                power-domains = <&rpmhpd RPMHPD_MMCX>;
+                               refgen-supply = <&refgen>;
 
                                phys = <&mdss_dsi0_phy>;
 
@@ -2808,6 +2815,7 @@ mdss_dsi1: dsi@ae96000 {
 
                                operating-points-v2 = <&dsi1_opp_table>;
                                power-domains = <&rpmhpd RPMHPD_MMCX>;
+                               refgen-supply = <&refgen>;
 
                                phys = <&mdss_dsi1_phy>;
 

-- 
2.39.2

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