Commit 90935eb3 authored by Wolfram Sang's avatar Wolfram Sang Committed by Ulf Hansson
Browse files

mmc: tmio: reenable card irqs after the reset callback 



The reset callback may clear the internal card detect interrupts, so
make sure to reenable them if needed.

Fixes: b4d86f37 ("mmc: renesas_sdhi: do hard reset if possible")
Reported-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211028195149.8003-1-wsa+renesas@sang-engineering.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent e8a1ff65

drivers/mmc/host/tmio_mmc_core.c

+12 −5
Original line number Diff line number Diff line
@@ -195,6 +195,10 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host) 
	sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask_all);

	host->sdcard_irq_mask = host->sdcard_irq_mask_all;



	if (host->native_hotplug)

		tmio_mmc_enable_mmc_irqs(host,

				TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);



	tmio_mmc_set_bus_width(host, host->mmc->ios.bus_width);



	if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) {
@@ -956,8 +960,15 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) 
	case MMC_POWER_OFF:

		tmio_mmc_power_off(host);

		/* For R-Car Gen2+, we need to reset SDHI specific SCC */

		if (host->pdata->flags & TMIO_MMC_MIN_RCAR2)

		if (host->pdata->flags & TMIO_MMC_MIN_RCAR2) {

			host->reset(host);



			if (host->native_hotplug)

				tmio_mmc_enable_mmc_irqs(host,

						TMIO_STAT_CARD_REMOVE |

						TMIO_STAT_CARD_INSERT);

		}



		host->set_clock(host, 0);

		break;

	case MMC_POWER_UP:
@@ -1185,10 +1196,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host) 
	_host->set_clock(_host, 0);

	tmio_mmc_reset(_host);



	if (_host->native_hotplug)

		tmio_mmc_enable_mmc_irqs(_host,

				TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);



	spin_lock_init(&_host->lock);

	mutex_init(&_host->ios_lock);