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Commit a812ba0f authored by Teppei Kamijou's avatar Teppei Kamijou Committed by Chris Ball
Browse files

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: default avatarTeppei Kamijou <teppei.kamijou.yb@renesas.com>
Signed-off-by: default avatarShinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent f9fd54f2

drivers/mmc/host/sh_mmcif.c

+3 −1
Original line number Diff line number Diff line
@@ -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;