The RPMhPD setup on SA8155P is different compared to SM8150. Correct
it to ensure the platform will not try accessing forbidden/missing
RPMh entries at boot, as a bad vote will hang the machine.
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sa8155p-adp.dts | 2 +-
arch/arm64/boot/dts/qcom/sa8155p.dtsi | 40 ++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
index 339fea522509..15e1ae1c1a97 100644
--- a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
@@ -7,7 +7,7 @@
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
#include <dt-bindings/gpio/gpio.h>
-#include "sm8150.dtsi"
+#include "sa8155p.dtsi"
#include "pmm8155au_1.dtsi"
#include "pmm8155au_2.dtsi"
diff --git a/arch/arm64/boot/dts/qcom/sa8155p.dtsi b/arch/arm64/boot/dts/qcom/sa8155p.dtsi
new file mode 100644
index 000000000000..ffb7ab695213
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sa8155p.dtsi
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2023, Linaro Limited
+ *
+ * SA8155P is an automotive variant of SM8150, with some minor changes.
+ * Most notably, the RPMhPD setup differs: MMCX and LCX/LMX rails are gone,
+ * though the cmd-db doesn't reflect that and access attemps result in a bite.
+ */
+
+#include "sm8150.dtsi"
+
+&dispcc {
+ power-domains = <&rpmhpd SA8155P_CX>;
+};
+
+&mdss_dsi0 {
+ power-domains = <&rpmhpd SA8155P_CX>;
+};
+
+&mdss_dsi1 {
+ power-domains = <&rpmhpd SA8155P_CX>;
+};
+
+&mdss_mdp {
+ power-domains = <&rpmhpd SA8155P_CX>;
+};
+
+&remoteproc_slpi {
+ power-domains = <&rpmhpd SA8155P_CX>,
+ <&rpmhpd SA8155P_MX>;
+};
+
+&rpmhpd {
+ /*
+ * The bindings were crafted such that SA8155P PDs match their
+ * SM8150 counterparts to make it more maintainable and only
+ * necessitate adjusting entries that actually differ
+ */
+ compatible = "qcom,sa8155p-rpmhpd";
+};
--
2.40.0
