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67 lines
1.9 KiB
Diff
67 lines
1.9 KiB
Diff
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From 5c47a46d5e942ea6b041c8b7727b201817c1ff76 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Thu, 7 Jul 2022 03:09:37 +0200
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Subject: [PATCH 3/8] ARM: dts: qcom: ipq8064: add specific dtsi with smb208
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rpm regulators
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Add specific ipq8064 dtsi with smb208 rpm regulators.
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Qcom advise to use this configuration but it's not mandatory and OEM
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can decide to implement their own regulators.
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smb208 regulators are used to scale CPU voltage, L2 cache voltage and
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Ubi32 cores.
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There regulators are controlled by rpm and to correctly works gsbi4-i2c
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require to be NEVER disabled or rpm will reject any regulator change
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request.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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Tested-by: Jonathan McDowell <noodles@earth.li>
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Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Link: https://lore.kernel.org/r/20220707010943.20857-4-ansuelsmth@gmail.com
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---
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arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi | 37 ++++++++++++++++++++++
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1 file changed, 37 insertions(+)
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create mode 100644 arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi
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--- /dev/null
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+++ b/arch/arm/boot/dts/qcom-ipq8064-smb208.dtsi
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@@ -0,0 +1,37 @@
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+// SPDX-License-Identifier: GPL-2.0
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+
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+#include "qcom-ipq8064.dtsi"
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+
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+&rpm {
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+ smb208_regulators: regulators {
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+ compatible = "qcom,rpm-smb208-regulators";
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+
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+ smb208_s1a: s1a {
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+ regulator-min-microvolt = <1050000>;
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+ regulator-max-microvolt = <1150000>;
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+
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+ qcom,switch-mode-frequency = <1200000>;
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+ };
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+
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+ smb208_s1b: s1b {
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+ regulator-min-microvolt = <1050000>;
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+ regulator-max-microvolt = <1150000>;
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+
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+ qcom,switch-mode-frequency = <1200000>;
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+ };
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+
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+ smb208_s2a: s2a {
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+ regulator-min-microvolt = < 800000>;
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+ regulator-max-microvolt = <1250000>;
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+
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+ qcom,switch-mode-frequency = <1200000>;
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+ };
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+
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+ smb208_s2b: s2b {
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+ regulator-min-microvolt = < 800000>;
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+ regulator-max-microvolt = <1250000>;
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+
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+ qcom,switch-mode-frequency = <1200000>;
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+ };
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+ };
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+};
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