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mmc: sunxi: Reset the device at probe time 

We might be into some troubles if the bootloader misconfigured the MMC
controller.

We currently only de-assert the reset line at probe time, which means that
if the device was already out of reset, we're going to keep whatever state
was set already.

Switch to a reset instead of the deassert to have a device in a pristine
state when we start operating.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Maxime Ripard 2017-08-25 11:49:53 +02:00 committed by Ulf Hansson
parent 734d21ccdc
commit c34eda69ad
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/sunxi-mmc.c
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@ -1242,7 +1242,7 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
}
if (!IS_ERR(host->reset)) {
ret = reset_control_deassert(host->reset);
ret = reset_control_reset(host->reset);
if (ret) {
dev_err(&pdev->dev, "reset err %d\n", ret);
goto error_disable_clk_sample;