redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Teppei Kamijou 2012-12-12 15:38:10 +01:00 committed by Chris Ball
parent f9fd54f22e
commit a812ba0fd0
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/mmc/host/sh_mmcif.c
View File

@ -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;