diff options
Diffstat (limited to 'arch/arm64/boot/dts/qcom/msm8998.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/msm8998.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi index 2fda21e810c9..4a84de6cee1e 100644 --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi @@ -815,6 +815,21 @@ clock-names = "xo", "sleep_clk"; clocks = <&xo>, <&sleep_clk>; + + /* + * The hypervisor typically configures the memory region where these clocks + * reside as read-only for the HLOS. If the HLOS tried to enable or disable + * these clocks on a device with such configuration (e.g. because they are + * enabled but unused during boot-up), the device will most likely decide + * to reboot. + * In light of that, we are conservative here and we list all such clocks + * as protected. The board dts (or a user-supplied dts) can override the + * list of protected clocks if it differs from the norm, and it is in fact + * desired for the HLOS to manage these clocks + */ + protected-clocks = <AGGRE2_SNOC_NORTH_AXI>, + <SSC_XO>, + <SSC_CNOC_AHBS_CLK>; }; rpm_msg_ram: sram@778000 { |