Commit 94f45085 authored Apr 26, 2016 by Sahitya Tummala Committed by Xiaonian Wang Apr 07, 2017

mmc: sdhci: Handle legacy commands sent in CQ error cases properly



There could be cases where CQE halt might fail and in which
case, CQE gets disabled as part of error handling.
In this case, !mmc_host_halt() will be true and the commands
sent in legacy mode are getting software request timeout errors
as they are getting handled as cmdq irq.
Hence, add !mmc_host_cq_disable() check as well in addition to
!mmc_host_halt() in sdhci_irq() before considering it as a
cmdq irq.

Change-Id: Ic529aae53fdecd6b9ecbb17ba13147964dce55dc
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>

parent 1c73e1c9

drivers/mmc/host/sdhci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3226,7 +3226,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)

		do {
		if (host->mmc->card && mmc_card_cmdq(host->mmc->card) &&
		!mmc_host_halt(host->mmc)) {
		!mmc_host_halt(host->mmc) && !mmc_host_cq_disable(host->mmc)) {
		pr_debug("*** %s: cmdq intr: 0x%08x\n",
		mmc_hostname(host->mmc),
		intmask);