Commit 118032be authored by Phil Elwell's avatar Phil Elwell Committed by Ulf Hansson

mmc: bcm2835: Don't overwrite max frequency unconditionally

The optional DT parameter max-frequency could init the max bus frequency.
So take care of this, before setting the max bus frequency.

Fixes: 660fc733 ("mmc: bcm2835: Add new driver for the sdhost controller.")
Signed-off-by: default avatarPhil Elwell <phil@raspberrypi.org>
Signed-off-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent fe0e5804
......@@ -1265,7 +1265,8 @@ static int bcm2835_add_host(struct bcm2835_host *host)
char pio_limit_string[20];
int ret;
mmc->f_max = host->max_clk;
if (!mmc->f_max || mmc->f_max > host->max_clk)
mmc->f_max = host->max_clk;
mmc->f_min = host->max_clk / SDCDIV_MAX_CDIV;
mmc->max_busy_timeout = ~0 / (mmc->f_max / 1000);
......
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