From: Stephen Boyd <swboyd@chromium.org>
To: Abhinav Kumar <quic_abhinavk@quicinc.com>,
freedreno@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org, quic_khsieh@quicinc.com,
seanpaul@chromium.org, dmitry.baryshkov@linaro.org,
quic_jesszhan@quicinc.com, quic_aravindh@quicinc.com
Subject: Re: [PATCH v2] drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
Date: Wed, 18 May 2022 17:40:03 -0700 [thread overview]
Message-ID: <CAE-0n53Cffs82nQC3_2QADbvQm0f_7tX+NPac8rvJULYE10GvA@mail.gmail.com> (raw)
In-Reply-To: <20220518223407.26147-1-quic_abhinavk@quicinc.com>
Quoting Abhinav Kumar (2022-05-18 15:34:07)
> If there are errors while trying to enable the pm in the
> bind path, it will lead to unclocked access of hw revision
> register thereby crashing the device.
>
> This will not address why the pm_runtime_get_sync() fails
> but at the very least we should be able to prevent the
> crash by handling the error and bailing out earlier.
>
> changes in v2:
> - use pm_runtime_resume_and_get() instead of
> pm_runtime_get_sync()
>
> Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
> ---
Any Fixes tag? When did pm errors start happening in the bind path?
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
next prev parent reply other threads:[~2022-05-19 0:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-18 22:34 [PATCH v2] drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path Abhinav Kumar
2022-05-19 0:31 ` Rob Clark
2022-05-19 0:40 ` Stephen Boyd [this message]
2022-05-19 1:26 ` [Freedreno] " Abhinav Kumar
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