[v6,1/4] arm64: dts: qcom: sc7180: Don't enable lpass clocks by default
Commit Message
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>
---
v5: minor style changes (Konrad)
v6: Extend the commit message (Doug)
---
arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 8 ++++++++
arch/arm64/boot/dts/qcom/sc7180.dtsi | 4 ++++
2 files changed, 12 insertions(+)
@@ -785,6 +785,10 @@ alc5682: codec@1a {
};
};
+&lpasscc {
+ status = "okay";
+};
+
&lpass_cpu {
status = "okay";
@@ -810,6 +814,10 @@ dai-link@5 {
};
};
+&lpass_hm {
+ status = "okay";
+};
+
&mdp {
status = "okay";
};
@@ -3621,6 +3621,8 @@ lpasscc: clock-controller@62d00000 {
power-domains = <&lpass_hm LPASS_CORE_HM_GDSCR>;
#clock-cells = <1>;
#power-domain-cells = <1>;
+
+ status = "reserved"; /* Controlled by ADSP */
};
lpass_cpu: lpass@62d87000 {
@@ -3669,6 +3671,8 @@ lpass_hm: clock-controller@63000000 {
#clock-cells = <1>;
#power-domain-cells = <1>;
+
+ status = "reserved"; /* Controlled by ADSP */
};
};