Hi Chris On Wed, 24 Apr 2013, Guennadi Liakhovetski wrote:
> This fixes two reported problems: > 1. after a system resume the controller isn't functioning until a command > runs on a timeout and a controller reset is performed. > 2. if a card is ejected during a running write operation, its re-insertion > isn't detected. > > Reported-by: Nguyen Viet Dung <nv-d...@jinso.co.jp> > Reported-by: Nguyen Hong Ky <nh...@jinso.co.jp> > Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+rene...@gmail.com> Please, add the following tags, when applying: Tested-by: Nguyen Viet Dung <nv-d...@jinso.co.jp> Tested-by: Nguyen Hong Ky <nh...@jinso.co.jp> Thanks Guennadi > --- > > v2: this patch supersedes the earlier "mmc: tmio: postpone controller > reset during resume" in that it extends the number of cases, in which the > reset is applied. It turned out, it is needed not only after a resume, but > also for recovery after an interrupted write. It also now applies on top > of "[PATCH v2] MMC: tmio: fix unbalanced power-on calls with clock-gating > enabled" http://article.gmane.org/gmane.linux.kernel.mmc/20233. Reporters > are cordially invited to add their "Tested-by" tags ;-) > > Chris, both these patches are fixes. Not sure whether it's still a good > idea to push them for 3.9, maybe better get them into 3.10 and then to > stable? > > drivers/mmc/host/tmio_mmc_pio.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > > diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c > index 1d5ef64..fcb9503 100644 > --- a/drivers/mmc/host/tmio_mmc_pio.c > +++ b/drivers/mmc/host/tmio_mmc_pio.c > @@ -863,6 +863,8 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct > mmc_ios *ios) > tmio_mmc_clk_update(mmc); > pm_runtime_get_sync(dev); > } > + if (host->power == TMIO_MMC_OFF_STOP) > + tmio_mmc_reset(host); > tmio_mmc_set_clock(host, ios->clock); > if (host->power == TMIO_MMC_OFF_STOP) > /* power up SD card and the bus */ > @@ -1161,7 +1163,6 @@ int tmio_mmc_host_resume(struct device *dev) > struct mmc_host *mmc = dev_get_drvdata(dev); > struct tmio_mmc_host *host = mmc_priv(mmc); > > - tmio_mmc_reset(host); > tmio_mmc_enable_dma(host, true); > > /* The MMC core will perform the complete set up */ > -- > 1.7.2.5 > > --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
