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>

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 6d36444..663b92b 100644 (file)
--- 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;