linux-kernel - [PATCH 4.18 13/44] mmc: slot-gpio: Fix debounce time to use miliseconds again

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Message-Id: <20181011152453.074825120@linuxfoundation.org>
Date:   Thu, 11 Oct 2018 17:39:51 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 4.18 13/44] mmc: slot-gpio: Fix debounce time to use miliseconds again

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marek Szyprowski <m.szyprowski@...sung.com>

commit 1b09d9c232cdaea59fb50ac437d3921ed1f1eafb upstream.

The debounce value passed to mmc_gpiod_request_cd() function is in
microseconds, but msecs_to_jiffies() requires the value to be in
miliseconds to properly calculate the delay, so adjust the value stored
in cd_debounce_delay_ms context entry.

Fixes: 1d71926bbd59 ("mmc: core: Fix debounce time to use microseconds")
Fixes: bfd694d5e21c ("mmc: core: Add tunable delay before detecting card
after card is inserted")
Cc: stable@...r.kernel.org # v4.18+
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mmc/core/slot-gpio.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mmc/core/slot-gpio.c
+++ b/drivers/mmc/core/slot-gpio.c
@@ -271,7 +271,7 @@ int mmc_gpiod_request_cd(struct mmc_host
 	if (debounce) {
 		ret = gpiod_set_debounce(desc, debounce);
 		if (ret < 0)
-			ctx->cd_debounce_delay_ms = debounce;
+			ctx->cd_debounce_delay_ms = debounce / 1000;
 	}
 
 	if (gpio_invert)