From: Guennadi Liakhovetski Date: Thu, 6 Jun 2013 14:35:48 +0000 (+0200) Subject: mmc: tmio: reset the controller after power-up X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b9ec2744128d0940342b236e9018614ba8848118;p=deliverable%2Flinux.git mmc: tmio: reset the controller after power-up 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 Reported-by: Nguyen Hong Ky Signed-off-by: Guennadi Liakhovetski Tested-by: Nguyen Viet Dung Tested-by: Nguyen Hong Ky Signed-off-by: Chris Ball --- diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 67d96428e62a..f29470835a4f 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -867,6 +867,8 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) host->resuming = false; } } + 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 */ @@ -1186,7 +1188,6 @@ int tmio_mmc_host_runtime_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); return 0;