mmc: bcm2835: Don't overwrite max frequency unconditionally
commitpull/10/head118032be38
upstream. The optional DT parameter max-frequency could init the max bus frequency. So take care of this, before setting the max bus frequency. Fixes:660fc733bd
("mmc: bcm2835: Add new driver for the sdhost controller.") Signed-off-by: Phil Elwell <phil@raspberrypi.org> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Cc: <stable@vger.kernel.org> # 4.12+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
a1341cac93
commit
e8012ff877
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@ -1265,7 +1265,8 @@ static int bcm2835_add_host(struct bcm2835_host *host)
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char pio_limit_string[20];
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int ret;
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mmc->f_max = host->max_clk;
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if (!mmc->f_max || mmc->f_max > host->max_clk)
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mmc->f_max = host->max_clk;
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mmc->f_min = host->max_clk / SDCDIV_MAX_CDIV;
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mmc->max_busy_timeout = ~0 / (mmc->f_max / 1000);
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