From: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>
To: Shawn Guo <shawn.guo@freescale.com>
Cc: Wolfram Sang <w.sang@pengutronix.de>,
Eric Benard <eric@eukrea.com>,
patches@linaro.org, linux-mmc@vger.kernel.org,
kernel@pengutronix.de, Chris Ball <cjb@laptop.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5
Date: Tue, 14 Jun 2011 13:13:29 +0200 [thread overview]
Message-ID: <87ei2wk6na.fsf@lebrac.rtp-net.org> (raw)
In-Reply-To: <20110614064841.GB30295@S2100-06.ap.freescale.net> (Shawn Guo's message of "Tue, 14 Jun 2011 14:48:42 +0800")
Shawn Guo <shawn.guo@freescale.com> writes:
Hi,
> On Fri, Jun 10, 2011 at 06:42:48PM +0800, Shawn Guo wrote:
>> The card-present polling within sdhci based driver is very expensive
>> in terms of the impact to system performance. We observe a few
>> system performance issues from Freescale and Linaro on mx5 platforms,
>> which have been proved card polling related.
>>
>> The patch set extends the current sdhci-esdhc-imx card_detect and
>> write_protect support to cover mx5 platforms, and solves above
>> performance issues.
>>
>> Shawn Guo (4):
>> mmc: sdhci: fix interrupt storm from card detection
>> mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared
>> mmc: sdhci-esdhc-imx: remove "WP" from flag ESDHC_FLAG_GPIO_FOR_CD_WP
>> mmc: sdhci-esdhc-imx: extend card_detect and write_protect support
>>
> Hi Arnaud,
>
> Any chance to play with it yet?
I tried applying the patch 4 (v2) on mmc git and Sascha Hauer's for-next
branch and failed. Can you please tell me on which tree should I apply
it ?
Thanks,
Arnaud
WARNING: multiple messages have this Message-ID (diff)
From: arnaud.patard@rtp-net.org (Arnaud Patard (Rtp))
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5
Date: Tue, 14 Jun 2011 13:13:29 +0200 [thread overview]
Message-ID: <87ei2wk6na.fsf@lebrac.rtp-net.org> (raw)
In-Reply-To: <20110614064841.GB30295@S2100-06.ap.freescale.net> (Shawn Guo's message of "Tue, 14 Jun 2011 14:48:42 +0800")
Shawn Guo <shawn.guo@freescale.com> writes:
Hi,
> On Fri, Jun 10, 2011 at 06:42:48PM +0800, Shawn Guo wrote:
>> The card-present polling within sdhci based driver is very expensive
>> in terms of the impact to system performance. We observe a few
>> system performance issues from Freescale and Linaro on mx5 platforms,
>> which have been proved card polling related.
>>
>> The patch set extends the current sdhci-esdhc-imx card_detect and
>> write_protect support to cover mx5 platforms, and solves above
>> performance issues.
>>
>> Shawn Guo (4):
>> mmc: sdhci: fix interrupt storm from card detection
>> mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared
>> mmc: sdhci-esdhc-imx: remove "WP" from flag ESDHC_FLAG_GPIO_FOR_CD_WP
>> mmc: sdhci-esdhc-imx: extend card_detect and write_protect support
>>
> Hi Arnaud,
>
> Any chance to play with it yet?
I tried applying the patch 4 (v2) on mmc git and Sascha Hauer's for-next
branch and failed. Can you please tell me on which tree should I apply
it ?
Thanks,
Arnaud
next prev parent reply other threads:[~2011-06-14 11:13 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-10 10:42 [PATCH 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5 Shawn Guo
2011-06-10 10:42 ` Shawn Guo
2011-06-10 10:42 ` [PATCH 1/4] mmc: sdhci: fix interrupt storm from card detection Shawn Guo
2011-06-10 10:42 ` Shawn Guo
2011-06-14 9:24 ` Wolfram Sang
2011-06-14 9:24 ` Wolfram Sang
2011-06-14 11:55 ` Shawn Guo
2011-06-14 11:55 ` Shawn Guo
2011-06-14 12:02 ` Wolfram Sang
2011-06-14 12:02 ` Wolfram Sang
2011-06-14 12:24 ` Shawn Guo
2011-06-14 12:24 ` Shawn Guo
2011-06-10 10:42 ` [PATCH 2/4] mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared Shawn Guo
2011-06-10 10:42 ` Shawn Guo
2011-06-14 9:22 ` Wolfram Sang
2011-06-14 9:22 ` Wolfram Sang
2011-06-10 10:42 ` [PATCH 3/4] mmc: sdhci-esdhc-imx: remove "WP" from flag ESDHC_FLAG_GPIO_FOR_CD_WP Shawn Guo
2011-06-10 10:42 ` Shawn Guo
2011-06-14 9:28 ` Wolfram Sang
2011-06-14 9:28 ` Wolfram Sang
2011-06-14 11:51 ` Shawn Guo
2011-06-14 11:51 ` Shawn Guo
2011-06-10 10:42 ` [PATCH 4/4] mmc: sdhci-esdhc-imx: extend card_detect and write_protect support Shawn Guo
2011-06-10 10:42 ` Shawn Guo
2011-06-11 9:30 ` Arnaud Patard
2011-06-11 9:30 ` Arnaud Patard (Rtp)
2011-06-11 11:50 ` Shawn Guo
2011-06-11 11:50 ` Shawn Guo
2011-06-11 11:59 ` Arnaud Patard
2011-06-11 11:59 ` Arnaud Patard (Rtp)
2011-06-11 13:16 ` Shawn Guo
2011-06-11 13:16 ` Shawn Guo
2011-06-11 19:21 ` Arnaud Patard
2011-06-11 19:21 ` Arnaud Patard (Rtp)
2011-06-14 6:47 ` [PATCH v2 4/4] mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5 Shawn Guo
2011-06-14 6:47 ` Shawn Guo
2011-06-14 9:51 ` Wolfram Sang
2011-06-14 9:51 ` Wolfram Sang
2011-06-14 13:06 ` Shawn Guo
2011-06-14 13:06 ` Shawn Guo
2011-06-14 13:55 ` Wolfram Sang
2011-06-14 13:55 ` Wolfram Sang
2011-06-15 3:10 ` Shawn Guo
2011-06-15 3:10 ` Shawn Guo
2011-06-15 10:33 ` Shawn Guo
2011-06-15 10:33 ` Shawn Guo
2011-06-15 10:44 ` Wolfram Sang
2011-06-15 10:44 ` Wolfram Sang
2011-06-14 6:48 ` [PATCH 0/4] Extend sdhci-esdhc-imx " Shawn Guo
2011-06-14 6:48 ` Shawn Guo
2011-06-14 11:13 ` Arnaud Patard [this message]
2011-06-14 11:13 ` Arnaud Patard (Rtp)
2011-06-14 11:39 ` Shawn Guo
2011-06-14 11:39 ` Shawn Guo
2011-06-14 13:12 ` Shawn Guo
2011-06-14 13:12 ` Shawn Guo
2011-06-14 14:29 ` Arnaud Patard
2011-06-14 14:29 ` Arnaud Patard (Rtp)
2011-06-15 3:13 ` Shawn Guo
2011-06-15 3:13 ` Shawn Guo
2011-06-16 18:32 ` Arnaud Patard
2011-06-16 18:32 ` Arnaud Patard (Rtp)
2011-06-20 10:41 ` Shawn Guo
2011-06-20 10:41 ` Shawn Guo
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