mirror/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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

Browse Source 
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
This commit is contained in:
Nikita Travkin
2023-05-15 14:37:41 +05:00
committed by Bjorn Andersson
parent a541667c86
commit 43926a3cb1
2 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
View File

@@ -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";
};

4
arch/arm64/boot/dts/qcom/sc7180.dtsi
View File

@@ -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 */
};
};