linux-kernel - Re: [PATCH] Revert "firmware: qcom_scm: Clear download bit during reboot"

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Message-ID: <9bfd0abf-835e-8440-6f66-47385cbba471@gmail.com>
Date:   Thu, 18 May 2023 13:46:22 +0200
From:   Robert Marko <robimarko@...il.com>
To:     Mukesh Ojha <quic_mojha@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org,
        p.zabel@...gutronix.de
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Revert "firmware: qcom_scm: Clear download bit during
 reboot"

> This reverts commit 781d32d1c970 as it causes regression(reboot
> does not work) for target like IPQ4019 that does not support
> download mode scm calls end to end.
>
> Fixes: 781d32d1c970 ("firmware: qcom_scm: Clear download bit during reboot")
> Signed-off-by: Mukesh Ojha <quic_mojha@...cinc.com>
> ---
>   drivers/firmware/qcom_scm.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
> index fde33acd46b7..a4bb9265d9c0 100644
> --- a/drivers/firmware/qcom_scm.c
> +++ b/drivers/firmware/qcom_scm.c
> @@ -1508,7 +1508,8 @@ static int qcom_scm_probe(struct platform_device *pdev)
>   static void qcom_scm_shutdown(struct platform_device *pdev)
>   {
>   	/* Clean shutdown, disable download mode to allow normal restart */
> -	qcom_scm_set_download_mode(false);
> +	if (download_mode)
> +		qcom_scm_set_download_mode(false);
>   }
>   
>   static const struct of_device_id qcom_scm_dt_match[] = {
>
Tested-by: Robert Marko <robimarko@...il.com>