diff options
| author | Teppei Kamijou <teppei.kamijou.yb@renesas.com> | 2012-12-12 15:38:10 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-02-11 12:51:25 -0500 |
| commit | a812ba0fd031c14c7680c94a1a22d5c60c7b6e2b (patch) | |
| tree | 7cf6ea6cb8f1e4d3324871b211c4d551b49c1768 /drivers/mmc/host/sh_mmcif.c | |
| parent | f9fd54f22e79046208ff1656afff7b5f9b7433cb (diff) | |
| download | linux-a812ba0fd031c14c7680c94a1a22d5c60c7b6e2b.tar.gz | |
mmc: sh_mmcif: Avoid unnecessary mmc_delay() at mmc_card_sleepawake()
SH/R-Mobile MMCIF host controller can wait while the card signals busy. Set MMC_CAP_WAIT_WHILE_BUSY to inform an upper layer (core/mmc_ops.c) not to insert unnecessary mmc_delay(). Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/sh_mmcif.c')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 6d3644430877..663b92b364bb 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -758,6 +758,7 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host, } switch (opc) { /* RBSY */ + case MMC_SLEEP_AWAKE: case MMC_SWITCH: case MMC_STOP_TRANSMISSION: case MMC_SET_WRITE_PROT: @@ -851,6 +852,7 @@ static void sh_mmcif_start_cmd(struct sh_mmcif_host *host, switch (opc) { /* response busy check */ + case MMC_SLEEP_AWAKE: case MMC_SWITCH: case MMC_STOP_TRANSMISSION: case MMC_SET_WRITE_PROT: @@ -1357,7 +1359,7 @@ static int sh_mmcif_probe(struct platform_device *pdev) mmc->ops = &sh_mmcif_ops; sh_mmcif_init_ocr(host); - mmc->caps = MMC_CAP_MMC_HIGHSPEED; + mmc->caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_WAIT_WHILE_BUSY; if (pd && pd->caps) mmc->caps |= pd->caps; mmc->max_segs = 32; |