Commit 575cf104 authored by Linus Walleij's avatar Linus Walleij Committed by Ulf Hansson
Browse files

mmc: mmci: De-assert reset on probe 



If we find a reset handle when probing the MMCI block,
make sure the reset is de-asserted. It could happen that
a hardware has reset asserted at boot.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Yann Gautier <yann.gautier@foss.st.com>
Cc: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Tested-by: default avatarYann Gautier <yann.gautier@foss.st.com>
Link: https://lore.kernel.org/r/20210630102408.3543024-1-linus.walleij@linaro.org


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 29cef6d4

drivers/mmc/host/mmci.c

+3 −0
Original line number Diff line number Diff line
@@ -2126,6 +2126,9 @@ static int mmci_probe(struct amba_device *dev, 
		ret = PTR_ERR(host->rst);

		goto clk_disable;

	}

	ret = reset_control_deassert(host->rst);

	if (ret)

		dev_err(mmc_dev(mmc), "failed to de-assert reset\n");



	/* Get regulators and the supported OCR mask */

	ret = mmc_regulator_get_supply(mmc);