diff mbox series

[v2,3/8] ARM: dts: qcom: add specific ipq8064 dtsi with smb208 rpm regulators

Message ID 20220707010943.20857-4-ansuelsmth@gmail.com (mailing list archive)
State Accepted
Commit 5c47a46d5e942ea6b041c8b7727b201817c1ff76
Headers show
Series Add ipq806x missing bindings | expand

Commit Message

Christian Marangi July 7, 2022, 1:09 a.m. UTC 
Add specific ipq8064 dtsi with smb208 rpm regulators.

Qcom advise to use this configuration but it's not mandatory and OEM
can decide to implement their own regulators.
smb208 regulators are used to scale CPU voltage, L2 cache voltage and
Ubi32 cores.

There regulators are controlled by rpm and to correctly works gsbi4-i2c
require to be NEVER disabled or rpm will reject any regulator change
request.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Tested-by: Jonathan McDowell <noodles@earth.li>
---
 arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi b/arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi
new file mode 100644
index 000000000000..ac9c44f0c164
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi
@@ -0,0 +1,37 @@ 
+// SPDX-License-Identifier: GPL-2.0
+
+#include "qcom-ipq8064.dtsi"
+
+&rpm {
+	smb208_regulators: regulators {
+		compatible = "qcom,rpm-smb208-regulators";
+
+		smb208_s1a: s1a {
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1150000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+
+		smb208_s1b: s1b {
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1150000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+
+		smb208_s2a: s2a {
+			regulator-min-microvolt = < 800000>;
+			regulator-max-microvolt = <1250000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+
+		smb208_s2b: s2b {
+			regulator-min-microvolt = < 800000>;
+			regulator-max-microvolt = <1250000>;
+
+			qcom,switch-mode-frequency = <1200000>;
+		};
+	};
+};