From: Kevin Hilman <khilman@kernel.org>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Krzysztof Kozlowski <k.kozlowski@samsung.com>,
Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
Jonathan Corbet <corbet@lwn.net>,
Dan Williams <dan.j.williams@intel.com>,
Vinod Koul <vinod.koul@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Alan Stern <stern@rowland.harvard.edu>,
linux-pm@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Lars-Peter Clausen <lars@metafoo.de>,
Michal Simek <michal.simek@xilinx.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: Re: [PATCH v8 3/5] amba: Don't unprepare the clocks if device driver wants IRQ safe runtime PM
Date: Mon, 03 Nov 2014 09:17:08 -0800 [thread overview]
Message-ID: <7hoasoi4q3.fsf@deeprootsystems.com> (raw)
In-Reply-To: <20141101010113.GA3831@n2100.arm.linux.org.uk> (Russell King's message of "Sat, 1 Nov 2014 01:01:13 +0000")
Russell King - ARM Linux <linux@arm.linux.org.uk> writes:
[...]
> Would another possible solution be to remember the irq-safeness in the
> suspend handler, and use that in the resume handler? Resume should
> /always/ undo what the suspend handler previously did wrt clk API stuff.
This seems more reasonable to me.
Currently, the setting of irq_safe-ness is permanent (there's no exposed
API to unset it after you set it.) so assuming it to be the same across
suspend resume is a safe assumption.
Kevin
next prev parent reply other threads:[~2014-11-03 17:17 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-20 9:04 [PATCH v8 0/5] amba/dma: pl330: add Power Management support Krzysztof Kozlowski
2014-10-20 9:04 ` [PATCH v8 1/5] PM / Runtime: Add getter for querying the IRQ safe option Krzysztof Kozlowski
2014-10-31 9:14 ` Krzysztof Kozlowski
2014-10-31 9:29 ` Ulf Hansson
2014-10-31 9:33 ` Russell King - ARM Linux
2014-10-31 9:54 ` Ulf Hansson
2014-10-31 9:33 ` Krzysztof Kozlowski
2014-10-31 14:22 ` Pavel Machek
2014-10-31 14:40 ` Krzysztof Kozlowski
2014-11-01 0:29 ` Laurent Pinchart
2014-11-03 9:36 ` Krzysztof Kozlowski
2014-11-03 16:27 ` Vinod Koul
2014-11-03 16:59 ` Laurent Pinchart
2014-11-05 14:09 ` Vinod Koul
2014-11-03 17:04 ` Russell King - ARM Linux
2014-11-05 14:04 ` Vinod Koul
2014-11-05 14:54 ` Laurent Pinchart
2014-10-31 23:11 ` Rafael J. Wysocki
2014-10-31 23:04 ` Russell King - ARM Linux
2014-11-01 0:42 ` Rafael J. Wysocki
2014-11-03 8:51 ` Krzysztof Kozlowski
2014-10-20 9:04 ` [PATCH v8 2/5] amba: Add helpers for (un)preparing AMBA clock Krzysztof Kozlowski
2014-10-21 8:05 ` Ulf Hansson
2014-10-20 9:04 ` [PATCH v8 3/5] amba: Don't unprepare the clocks if device driver wants IRQ safe runtime PM Krzysztof Kozlowski
2014-11-01 0:45 ` Rafael J. Wysocki
2014-11-01 0:55 ` Russell King - ARM Linux
2014-11-01 1:01 ` Russell King - ARM Linux
2014-11-03 8:36 ` Krzysztof Kozlowski
2014-11-03 10:04 ` Russell King - ARM Linux
2014-11-03 15:41 ` Alan Stern
2014-11-03 15:44 ` Russell King - ARM Linux
2014-11-04 7:59 ` Krzysztof Kozlowski
2014-11-04 1:57 ` Rafael J. Wysocki
2014-11-04 8:01 ` Krzysztof Kozlowski
2014-11-04 9:11 ` Ulf Hansson
2014-11-04 13:59 ` Rafael J. Wysocki
2014-11-04 16:19 ` Ulf Hansson
2014-11-03 17:17 ` Kevin Hilman [this message]
2014-10-20 9:04 ` [PATCH v8 4/5] dma: pl330: add Power Management support Krzysztof Kozlowski
2014-10-20 9:04 ` [PATCH v8 5/5] amba: Remove unused amba_pclk_enable/disable macros Krzysztof Kozlowski
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