leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: sh_mmcif: Support MMC_SLEEP_AWAKE command

Browse Source 
The MMC_SLEEP_AWAKE and SD_IO_SEND_OP_COND commands share the same
opcode. SD_IO_SEND_OP_COND isn't supported by the SH MMCIF, but
MMC_SLEEP_AWAKE is. Discriminate between the two commands using the
command flags, and reject SD_IO_SEND_OP_COND only.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Laurent Pinchart 2012-06-12 22:56:09 +02:00 committed by Chris Ball
parent 94c6cee91b
commit 7541ca9847
1 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/mmc/host/sh_mmcif.c
View File

@ -892,21 +892,15 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
switch (mrq->cmd->opcode) {
/* MMCIF does not support SD/SDIO command */
case SD_IO_SEND_OP_COND:
case MMC_SLEEP_AWAKE: /* = SD_IO_SEND_OP_COND (5) */
case MMC_SEND_EXT_CSD: /* = SD_SEND_IF_COND (8) */
if ((mrq->cmd->flags & MMC_CMD_MASK) != MMC_CMD_BCR)
break;
case MMC_APP_CMD:
host->state = STATE_IDLE;
mrq->cmd->error = -ETIMEDOUT;
mmc_request_done(mmc, mrq);
return;
case MMC_SEND_EXT_CSD: /* = SD_SEND_IF_COND (8) */
if (!mrq->data) {
/* send_if_cond cmd (not support) */
host->state = STATE_IDLE;
mrq->cmd->error = -ETIMEDOUT;
mmc_request_done(mmc, mrq);
return;
}
break;
default:
break;
}