arm64: dts: qcom: sc7180: Don't enable lpass clocks by default

lpass clocks are usually blocked from HLOS by the firmware and
instead are managed by the ADSP. Mark them as reserved and explicitly
enable in the CrOS boards that have special, cooperative firmware.

The IDP board gets lpass clocks disabled as it doesn't make use of sound
anyway and might use Qualcomm firmware that blocks those clocks. [1]

[1] https://lore.kernel.org/all/ZBJhmDd3zK%2FAiwBD@google.com/

Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230515093744.289045-2-nikita@trvn.ru

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index ca6920de7ea879bbcdf302b51c76909aab7e092b..6cf09152fdfd339cb72145f0b370bd47cc08a4c4 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -788,6 +788,10 @@ hp_i2c: &i2c9 {
        };
 };
 
+&lpasscc {
+       status = "okay";
+};
+
 &lpass_cpu {
        status = "okay";
 
@@ -813,6 +817,10 @@ hp_i2c: &i2c9 {
        };
 };
 
+&lpass_hm {
+       status = "okay";
+};
+
 &mdp {
        status = "okay";
 };

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index ea1ffade1aa194ba5896680ac13083b7fd3cf24e..39130596dc7d3c58bac033fb809897a7f797c05c 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -3627,6 +3627,8 @@
                        power-domains = <&lpass_hm LPASS_CORE_HM_GDSCR>;
                        #clock-cells = <1>;
                        #power-domain-cells = <1>;
+
+                       status = "reserved"; /* Controlled by ADSP */
                };
 
                lpass_cpu: lpass@62d87000 {
@@ -3675,6 +3677,8 @@
 
                        #clock-cells = <1>;
                        #power-domain-cells = <1>;
+
+                       status = "reserved"; /* Controlled by ADSP */
                };
        };