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arm64: dts: qcom: msm8998-clamshell: Remove retention idle state 

commit b40dd23f9a upstream.

The retention idle state does not appear to be supported by the firmware
present on the msm8998 laptops since the state is advertised as disabled
in ACPI, and attempting to enable the state in DT is observed to result
in boot hangs.  Therefore, remove the state from use to address the
observed issues.

Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Fixes: 2c6d2d3a58 (arm64: dts: qcom: Add Lenovo Miix 630)
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jeffrey Hugo 2019-10-02 12:07:56 -07:00 committed by Greg Kroah-Hartman
parent 9d4a0a31ce
commit c87a84c5eb
1 changed files with 37 additions and 0 deletions
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37
arch/arm64/boot/dts/qcom/msm8998-clamshell.dtsi
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@ -23,6 +23,43 @@
};
};
/*
* The laptop FW does not appear to support the retention state as it is
* not advertised as enabled in ACPI, and enabling it in DT can cause boot
* hangs.
*/
&CPU0 {
cpu-idle-states = <&LITTLE_CPU_SLEEP_1>;
};
&CPU1 {
cpu-idle-states = <&LITTLE_CPU_SLEEP_1>;
};
&CPU2 {
cpu-idle-states = <&LITTLE_CPU_SLEEP_1>;
};
&CPU3 {
cpu-idle-states = <&LITTLE_CPU_SLEEP_1>;
};
&CPU4 {
cpu-idle-states = <&BIG_CPU_SLEEP_1>;
};
&CPU5 {
cpu-idle-states = <&BIG_CPU_SLEEP_1>;
};
&CPU6 {
cpu-idle-states = <&BIG_CPU_SLEEP_1>;
};
&CPU7 {
cpu-idle-states = <&BIG_CPU_SLEEP_1>;
};
&qusb2phy {
status = "okay";