From 575cf1046923690c1821cd33c55dc641937404cf Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 30 Jun 2021 12:24:08 +0200 Subject: [PATCH] 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 Cc: Yann Gautier Cc: Ludovic Barre Signed-off-by: Linus Walleij Tested-by: Yann Gautier Link: https://lore.kernel.org/r/20210630102408.3543024-1-linus.walleij@linaro.org Signed-off-by: Ulf Hansson --- drivers/mmc/host/mmci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 984d35055156..3765e2f4ad98 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -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); -- 2.25.1