From: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Enabling the Display panel for beryllium requires DSI
labibb regulators and panel dts nodes to be added.
It is also required to keep some of the regulators as
always-on.
Signed-off-by: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
---
v4: Added Konrad's reviewed-by from v3. Added over current
protection, pull-down and soft-start properties. Couldn't
boot with downstream max-microamp values, so skipped it.
Smoke tested on v5.12-rc5.
v3: Addressed Konrad's concerns. Configured labibb regulators
explicitly based on downstream microvolt values. Display
comes up fine with default discharge-resistor-kohms and
soft-start-us properties, so didn't touch them.
Smoke tested on next-20210209.
v2: Rebased to mainline (v5.11-rc6) and fixed build warnings.
.../boot/dts/qcom/sdm845-xiaomi-beryllium.dts | 71 +++++++++++++++++++
1 file changed, 71 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts
index 86cbae63eaf7..7d029425336e 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium.dts
@@ -157,6 +157,14 @@ vreg_l13a_2p95: ldo13 {
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
+ vreg_l14a_1p8: ldo14 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
vreg_l17a_1p3: ldo17 {
regulator-min-microvolt = <1304000>;
regulator-max-microvolt = <1304000>;
@@ -191,6 +199,7 @@ vreg_l26a_1p2: ldo26 {
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ regulator-boot-on;
};
};
};
@@ -200,6 +209,43 @@ &cdsp_pas {
firmware-name = "qcom/sdm845/cdsp.mdt";
};
+&dsi0 {
+ status = "okay";
+ vdda-supply = <&vreg_l26a_1p2>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "tianma,fhd-video";
+ reg = <0>;
+ vddi0-supply = <&vreg_l14a_1p8>;
+ vddpos-supply = <&lab>;
+ vddneg-supply = <&ibb>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
+
+ port {
+ tianma_nt36672a_in_0: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+};
+
+&dsi0_out {
+ remote-endpoint = <&tianma_nt36672a_in_0>;
+ data-lanes = <0 1 2 3>;
+};
+
+&dsi0_phy {
+ status = "okay";
+ vdds-supply = <&vreg_l1a_0p875>;
+};
+
&gcc {
protected-clocks = <GCC_QSPI_CORE_CLK>,
<GCC_QSPI_CORE_CLK_SRC>,
@@ -215,6 +261,31 @@ zap-shader {
};
};
+&ibb {
+ regulator-min-microvolt = <4600000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-over-current-protection;
+ regulator-pull-down;
+ regulator-soft-start;
+ qcom,discharge-resistor-kohms = <300>;
+};
+
+&lab {
+ regulator-min-microvolt = <4600000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-over-current-protection;
+ regulator-pull-down;
+ regulator-soft-start;
+};
+
+&mdss {
+ status = "okay";
+};
+
+&mdss_mdp {
+ status = "okay";
+};
+
&mss_pil {
status = "okay";
firmware-name = "qcom/sdm845/mba.mbn", "qcom/sdm845/modem.mdt";
--
2.25.1
