[PATCH 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5

Shawn Guo shawn.guo at freescale.com
Tue Jun 14 02:48:42 EDT 2011

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?

Hi Wolfram,

Any comment?


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