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mmc: core: Turn off CQE before sending commands 

CQE needs to be off for the host controller to accept non-CQ commands. Turn
off the CQE before sending commands, and ensure it is off in any reset or
power management paths, or re-tuning.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Adrian Hunter 2017-08-10 15:08:09 +03:00 committed by Ulf Hansson
parent d3bf68ae04
commit 3e207c8cfa
1 changed files with 9 additions and 0 deletions
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9
drivers/mmc/core/core.c
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@ -260,6 +260,9 @@ static void __mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
trace_mmc_request_start(host, mrq);
if (host->cqe_on)
host->cqe_ops->cqe_off(host);
host->ops->request(host, mrq);
}
@ -979,6 +982,9 @@ int mmc_execute_tuning(struct mmc_card *card)
if (!host->ops->execute_tuning)
return 0;
if (host->cqe_on)
host->cqe_ops->cqe_off(host);
if (mmc_card_mmc(card))
opcode = MMC_SEND_TUNING_BLOCK_HS200;
else
@ -1018,6 +1024,9 @@ void mmc_set_bus_width(struct mmc_host *host, unsigned int width)
*/
void mmc_set_initial_state(struct mmc_host *host)
{
if (host->cqe_on)
host->cqe_ops->cqe_off(host);
mmc_retune_disable(host);
if (mmc_host_is_spi(host))