diff mbox series

[RESEND,5.10.y-cip,25/40] mmc: tmio: reenable card irqs after the reset callback

Message ID 20220401194234.14057-26-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Accepted
Delegated to: Pavel Machek
Headers show
Series Add SD/eMMC support for Renesas RZ/G2L SoC | expand

Commit Message

Lad Prabhakar April 1, 2022, 7:42 p.m. UTC 
From: Wolfram Sang <wsa+renesas@sang-engineering.com>

commit 90935eb303e0d12f3d3d0383262e65290321f5f6 upstream.

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

Fixes: b4d86f37eacb ("mmc: renesas_sdhi: do hard reset if possible")
Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Wolfram 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: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/mmc/host/tmio_mmc_core.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index bb5eb478b6cf..690094b0b6a8 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -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) {
@@ -954,8 +958,15 @@  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:
@@ -1192,10 +1203,6 @@  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);