In order to support commands during data transfer, it will be possible to
need to reset the command circuit while the data circuit is in use, and
vice versa. It is now easy to determine whether the command or data circuit
is in use, and so just skip the corresponding reset if it is.
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/mmc/host/sdhci.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 690bffa24e93..e9eb71861764 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1022,7 +1022,8 @@ static void sdhci_finish_data(struct sdhci_host *host)
* upon error conditions.
*/
if (data->error) {
- sdhci_do_reset(host, SDHCI_RESET_CMD);
+ if (!host->cmd)
+ sdhci_do_reset(host, SDHCI_RESET_CMD);
sdhci_do_reset(host, SDHCI_RESET_DATA);
}
@@ -2299,8 +2300,10 @@ static bool sdhci_request_done(struct sdhci_host *host)
/* Spec says we should do both at the same time, but Ricoh
controllers do not like that. */
- sdhci_do_reset(host, SDHCI_RESET_CMD);
- sdhci_do_reset(host, SDHCI_RESET_DATA);
+ if (!host->cmd)
+ sdhci_do_reset(host, SDHCI_RESET_CMD);
+ if (!host->data_cmd)
+ sdhci_do_reset(host, SDHCI_RESET_DATA);
host->pending_reset = false;
}
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
