mmc: host: tmio: fill in response from auto cmd12

Wolfram Sang · storulf · commit eb7c00e14611 · 2017-04-24T21:41:16.000+02:00
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.

Reviewed-by: Simon Horman &lt;horms+renesas@verge.net.au&gt;
Tested-by: Yoshihiro Shimoda &lt;yoshihiro.shimoda.uh@renesas.com&gt;
Signed-off-by: Wolfram Sang &lt;wsa+renesas@sang-engineering.com&gt;
Signed-off-by: Ulf Hansson &lt;ulf.hansson@linaro.org&gt;
diff --git 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);
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -557,6 +557,9 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)`
`557`	`557`	`dev_err(&host->pdev->dev, "unsupported stop: CMD%u,0x%x. We did CMD12,0\n",`
`558`	`558`	`stop->opcode, stop->arg);`
`559`	`559`
	`560`	`+ /* fill in response from auto CMD12 */`
	`561`	`+ stop->resp[0] = sd_ctrl_read16_and_16_as_32(host, CTL_RESPONSE);`
	`562`	`+`
`560`	`563`	`sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0);`
`561`	`564`	`}`
`562`	`565`