arm64: dts: qcom: sa8295p-adp: Specify which LDO modes are allowed

This board uses RPMH, specifies "regulator-allow-set-load" for LDOs,
but doesn't specify any modes with "regulator-allowed-modes".

Prior to commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
get_optimum_mode(), not set_load()") the above meant that we were able
to set either LPM or HPM mode. After that commit (and fixes [1]) we'll
be stuck at the initial mode. Discussion of this has resulted in the
decision that the old dts files were wrong and should be fixed to
fully restore old functionality.

Let's re-enable the old functionality by fixing the dts.

[1] https://lore.kernel.org/r/20220824142229.RFT.v2.2.I6f77860e5cd98bf5c67208fa9edda4a08847c304@changeid

Fixes: 519183af39b2 ("arm64: dts: qcom: add SA8540P and ADP")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220829094903.v2.2.I430a56702ab0af65244e62667bb7743107de0c96@changeid

diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
index b608b82dff03c177261cb0bc14501bb26aab4d07..2c62ba6a49c5bcd4feb01da64e72d4e840fc5a4f 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
@@ -83,6 +83,9 @@
                        regulator-max-microvolt = <1200000>;
                        regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
                        regulator-allow-set-load;
+                       regulator-allowed-modes =
+                           <RPMH_REGULATOR_MODE_LPM
+                            RPMH_REGULATOR_MODE_HPM>;
                };
 
                vreg_l4c: ldo4 {
@@ -98,6 +101,9 @@
                        regulator-max-microvolt = <1200000>;
                        regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
                        regulator-allow-set-load;
+                       regulator-allowed-modes =
+                           <RPMH_REGULATOR_MODE_LPM
+                            RPMH_REGULATOR_MODE_HPM>;
                };
 
                vreg_l7c: ldo7 {
@@ -113,6 +119,9 @@
                        regulator-max-microvolt = <2504000>;
                        regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
                        regulator-allow-set-load;
+                       regulator-allowed-modes =
+                           <RPMH_REGULATOR_MODE_LPM
+                            RPMH_REGULATOR_MODE_HPM>;
                };
 
                vreg_l17c: ldo17 {
@@ -121,6 +130,9 @@
                        regulator-max-microvolt = <2504000>;
                        regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
                        regulator-allow-set-load;
+                       regulator-allowed-modes =
+                           <RPMH_REGULATOR_MODE_LPM
+                            RPMH_REGULATOR_MODE_HPM>;
                };
        };