mmc: sdio: fix sdio_reset_comm() to take care of UHS card reset
sdio_reset_comm() function may be invoked by the SDIO card function
driver to execute soft reset of the card but this function currently
fails to reset the UHS SDIO cards.
This change fixes this issue by simply invoking SDIO power restore
function which is capable of resetting both UHS and non-UHS SDIO cards.
CRs-Fixed: 424685
Change-Id: I4f1d76a6bfc4bfec16661aedba85c45b601f24ac
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Masakazu Yamazaki <yamazaki-m@casio.co.jp>
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 7c7e544..1b3c9d0 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -1243,38 +1243,6 @@
int sdio_reset_comm(struct mmc_card *card)
{
- struct mmc_host *host = card->host;
- u32 ocr;
- u32 rocr;
- int err;
-
- printk("%s():\n", __func__);
- mmc_claim_host(host);
-
- mmc_go_idle(host);
-
- mmc_set_clock(host, host->f_min);
-
- err = mmc_send_io_op_cond(host, 0, &ocr);
- if (err)
- goto err;
-
- rocr = mmc_select_voltage(host, ocr);
- if (!rocr) {
- err = -EINVAL;
- goto err;
- }
-
- err = mmc_sdio_init_card(host, rocr, card, 0);
- if (err)
- goto err;
-
- mmc_release_host(host);
- return 0;
-err:
- printk("%s: Error resetting SDIO communications (%d)\n",
- mmc_hostname(host), err);
- mmc_release_host(host);
- return err;
+ return mmc_power_restore_host(card->host);
}
EXPORT_SYMBOL(sdio_reset_comm);
