On 12 February 2018 at 21:13, Stefan Wahren <stefan.wahren@xxxxxxxx> wrote:
> From: Phil Elwell <phil@xxxxxxxxxxxxxxx>
>
> The optional DT parameter max-frequency could init the max bus frequency.
> So take care of this, before setting the max bus frequency.
>
> Fixes: 660fc733bd74 ("mmc: bcm2835: Add new driver for the sdhost controller.")
> Signed-off-by: Phil Elwell <phil@xxxxxxxxxxxxxxx>
> Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Thanks, applied for fixes and by adding a stable tag.
Kind regards
Uffe
> ---
> drivers/mmc/host/bcm2835.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
> index 229dc18..768972a 100644
> --- a/drivers/mmc/host/bcm2835.c
> +++ b/drivers/mmc/host/bcm2835.c
> @@ -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);
> --
> 2.7.4
>
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