From: Rob Herring <robh@kernel.org>
To: Andrew Murray <andrew.murray@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, Al.Grant@arm.com,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
coresight@lists.linaro.org, Leo Yan <leo.yan@linaro.org>,
Sudeep Holla <sudeep.holla@arm.com>,
linux-arm-kernel@lists.infradead.org,
Mike Leach <mike.leach@linaro.org>
Subject: Re: [PATCH v6 2/3] dt-bindings: arm: coresight: Add support for coresight-loses-context-with-cpu
Date: Tue, 17 Sep 2019 12:44:48 -0500 [thread overview]
Message-ID: <20190917174448.GA22479@bogus> (raw)
In-Reply-To: <20190913115312.12943-3-andrew.murray@arm.com>
On Fri, 13 Sep 2019 12:53:11 +0100, Andrew Murray wrote:
> Some coresight components, because of choices made during hardware
> integration, require their state to be saved and restored across CPU low
> power states.
>
> The software has no reliable method of detecting when save/restore is
> required thus let's add a binding to inform the kernel.
>
> Signed-off-by: Andrew Murray <andrew.murray@arm.com>
> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
> ---
> Documentation/devicetree/bindings/arm/coresight.txt | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
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next prev parent reply other threads:[~2019-09-17 17:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-13 11:53 [PATCH v6 0/3] coresight: etm4x: save/restore ETMv4 context across CPU low power states Andrew Murray
2019-09-13 11:53 ` [PATCH v6 1/3] coresight: etm4x: save/restore state " Andrew Murray
2019-09-13 11:53 ` [PATCH v6 2/3] dt-bindings: arm: coresight: Add support for coresight-loses-context-with-cpu Andrew Murray
2019-09-17 17:44 ` Rob Herring [this message]
2019-09-13 11:53 ` [PATCH v6 3/3] coresight: etm4x: save/restore state for external agents Andrew Murray
2019-09-17 19:37 ` [PATCH v6 0/3] coresight: etm4x: save/restore ETMv4 context across CPU low power states Mathieu Poirier
2019-09-18 8:36 ` Andrew Murray
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