linux-kernel - Re: [PATCH] arm64: defconfig: Enable Qualcomm LMH driver

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Date:   Mon, 18 Oct 2021 11:37:06 -0500
From:   Steev Klimaszewski <steev@...i.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Thara Gopinath <thara.gopinath@...aro.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] arm64: defconfig: Enable Qualcomm LMH driver


On 10/17/21 3:40 PM, Bjorn Andersson wrote:
> With the introduction of LMH in '36c6581214c4 ("arm64: dts: qcom:
> sdm845: Add support for LMh node")' the CPUfreq gained a reference for
> the two interrupts from the LMh. This means that if the LMh driver isn't
> enabled CPUfreq will not probe and there's no frequency scaling.
>
> Enable LMh to make CPUfreq functional again on SDM845.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>   arch/arm64/configs/defconfig | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 86224aa3a74b..0ae6cd2748d2 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -577,6 +577,7 @@ CONFIG_TEGRA_BPMP_THERMAL=m
>   CONFIG_TEGRA_SOCTHERM=m
>   CONFIG_QCOM_TSENS=y
>   CONFIG_QCOM_SPMI_TEMP_ALARM=m
> +CONFIG_QCOM_LMH=m
>   CONFIG_UNIPHIER_THERMAL=y
>   CONFIG_WATCHDOG=y
>   CONFIG_SL28CPLD_WATCHDOG=m

Tested on the Lenovo Yoga C630

Tested-By: Steev Klimaszewski <steev@...i.org>