From: Bjorn Andersson <andersson@kernel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>,
Srinivas Kandagatla <srini@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Vinod Koul <vkoul@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH 6/7] slimbus: qcom-ngd-ctrl: Balance pm_runtime enablement for NGD
Date: Tue, 31 Mar 2026 17:54:02 -0500 [thread overview]
Message-ID: <acxPWJY-C1DUviT6@baldur> (raw)
In-Reply-To: <fusum3ildpm2epfipamzlttb7oyopua6bt2rl2kfh6jjtl52oc@mcy5rcbpim7i>
On Wed, Mar 11, 2026 at 03:34:40AM +0200, Dmitry Baryshkov wrote:
> On Mon, Mar 09, 2026 at 11:09:07PM -0500, Bjorn Andersson wrote:
> > The pm_runtime_enable() and pm_runtime_use_autosuspend() calls are
> > supposed to be balanced on exit, add these calls.
>
> Use devm_pm_runtime_enable()?
>
That would extend the pm_runtime_enabled() time until after
qcom_slim_ngd_remove() returns. I think that might be okay...
But I think we should continue this cleanup and try to clean up the dual
platform_drivers in the single driver. Also the PM runtime callbacks are
attached to the NGD, but the callbacks are exclusively operating on the
NGD ctrl (i.e. parent) state.
Regards,
Bjorn
> >
> > Fixes: 917809e2280b ("slimbus: ngd: Add qcom SLIMBus NGD driver")
> > Cc: stable@vger.kernel.org
> > Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
> > ---
> > drivers/slimbus/qcom-ngd-ctrl.c | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
>
> --
> With best wishes
> Dmitry
next prev parent reply other threads:[~2026-03-31 22:54 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-10 4:09 [PATCH 0/7] slimbus: qcom-ngd-ctrl: Fix some race conditions and deadlocks Bjorn Andersson
2026-03-10 4:09 ` [PATCH 1/7] slimbus: qcom-ngd-ctrl: Fix up platform_driver registration Bjorn Andersson
2026-03-10 7:33 ` Mukesh Ojha
2026-04-01 3:06 ` Bjorn Andersson
2026-03-11 1:30 ` Dmitry Baryshkov
2026-03-10 4:09 ` [PATCH 2/7] slimbus: qcom-ngd-ctrl: Fix probe error path ordering Bjorn Andersson
2026-03-10 7:36 ` Mukesh Ojha
2026-03-11 1:30 ` Dmitry Baryshkov
2026-03-10 4:09 ` [PATCH 3/7] slimbus: qcom-ngd-ctrl: Correct PDR and SSR cleanup ownership Bjorn Andersson
2026-03-10 7:39 ` Mukesh Ojha
2026-03-24 2:36 ` Bjorn Andersson
2026-03-24 6:32 ` Mukesh Ojha
2026-03-11 1:32 ` Dmitry Baryshkov
2026-03-10 4:09 ` [PATCH 4/7] slimbus: qcom-ngd-ctrl: Register callbacks after creating the ngd Bjorn Andersson
2026-03-10 7:49 ` Mukesh Ojha
2026-03-11 1:45 ` Dmitry Baryshkov
2026-03-10 4:09 ` [PATCH 5/7] slimbus: qcom-ngd-ctrl: Initialize controller resources in controller Bjorn Andersson
2026-03-10 7:54 ` Mukesh Ojha
2026-03-11 1:34 ` Dmitry Baryshkov
2026-03-10 4:09 ` [PATCH 6/7] slimbus: qcom-ngd-ctrl: Balance pm_runtime enablement for NGD Bjorn Andersson
2026-03-10 8:00 ` Mukesh Ojha
2026-03-31 22:59 ` Bjorn Andersson
2026-03-11 1:34 ` Dmitry Baryshkov
2026-03-31 22:54 ` Bjorn Andersson [this message]
2026-03-10 4:09 ` [PATCH 7/7] slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock Bjorn Andersson
2026-03-10 10:03 ` Mukesh Ojha
2026-03-11 0:06 ` Bjorn Andersson
2026-03-11 1:37 ` Dmitry Baryshkov
2026-03-31 22:45 ` Bjorn Andersson
2026-03-11 1:40 ` [PATCH 0/7] slimbus: qcom-ngd-ctrl: Fix some race conditions and deadlocks Dmitry Baryshkov
2026-04-01 2:54 ` Bjorn Andersson
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