Hi Arnaud, Would you please give a test on the series, as it fixed the issue you reported? TIA. -- Regards, Shawn On Mon, Jun 20, 2011 at 06:38:41PM +0800, Shawn Guo wrote: > The card-present polling for 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. > > Changes since v2: > * Fix the issue reported by Arnaud Patard: > http://article.gmane.org/gmane.linux.ports.arm.kernel/120790 > > Changes since v1: > * Rebase on today's linux-next > * Take the suggestion from Arnaud Patard to add default pdata in > imx_add_sdhci_esdhc_imx(), to avoid touching every single board > file for the platform_data changes > * Add comment for sdhci.c change > * Change ESDHC_CD(WP)_SIGNAL to ESDHC_CD(WP)_CONTROLLER for a more > descriptive name > * Add missing NONE case handling in esdhc_pltfm_get_ro > * Improve a couple comment wording per suggestion from Wolfram Sang > > 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 for mx5 > > arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c | 3 +- > arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c | 3 +- > arch/arm/mach-imx/mach-mx25_3ds.c | 2 + > arch/arm/mach-imx/mach-pcm043.c | 2 + > arch/arm/mach-mx5/board-mx51_babbage.c | 14 +- > arch/arm/mach-mx5/board-mx53_loco.c | 4 + > .../plat-mxc/devices/platform-sdhci-esdhc-imx.c | 12 ++ > arch/arm/plat-mxc/include/mach/esdhc.h | 25 +++- > drivers/mmc/host/sdhci-esdhc-imx.c | 136 ++++++++++++-------- > drivers/mmc/host/sdhci.c | 27 ++++- > 10 files changed, 161 insertions(+), 67 deletions(-) > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
