diff mbox

[4/4] mmc: host: tmio: fill in response from auto cmd12

Message ID 20170212111227.1550-5-wsa+renesas@sang-engineering.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wolfram Sang Feb. 12, 2017, 11:12 a.m. UTC
After we received the dataend interrupt, R1 response register carries
the value from the automatically generated stop command. Report that
info back to the MMC block layer, so we will be notified in case of e.g.
ECC errors which happened during the last transfer.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/mmc/host/tmio_mmc_pio.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Simon Horman Feb. 13, 2017, 12:58 p.m. UTC | #1
On Sun, Feb 12, 2017 at 12:12:27PM +0100, Wolfram Sang wrote:
> After we received the dataend interrupt, R1 response register carries
> the value from the automatically generated stop command. Report that
> info back to the MMC block layer, so we will be notified in case of e.g.
> ECC errors which happened during the last transfer.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

Reviewed-by: Simon Horman <horms+renesas@verge.net.au>

--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index b47dd9195fe3fe..a08db28b0100d6 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -557,6 +557,9 @@  void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)
 			dev_err(&host->pdev->dev, "unsupported stop: CMD%u,0x%x. We did CMD12,0\n",
 				stop->opcode, stop->arg);
 
+		/* fill in response from auto CMD12 */
+		stop->resp[0] = sd_ctrl_read16_and_16_as_32(host, CTL_RESPONSE);
+
 		sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0);
 	}