On Fri, Sep 21, 2012 at 8:51 PM, Balaji T K <balajitk@xxxxxx> wrote:
> clock divisor can take a max value of 1023
> update code as per TRM so that card init can be handled with
> higher IP clock frequencies from which clock to the card is
> derived.
>
This is difficult to read without some punctuation / capitalization.
> Signed-off-by: Balaji T K <balajitk@xxxxxx>
> ---
> drivers/mmc/host/omap_hsmmc.c | 5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> index d9af5f1..073b9ff 100644
> --- a/drivers/mmc/host/omap_hsmmc.c
> +++ b/drivers/mmc/host/omap_hsmmc.c
> @@ -75,6 +75,7 @@
> #define ICE 0x1
> #define ICS 0x2
> #define CEN (1 << 2)
> +#define CLKD_MAX 0x3FF
It'd be nice to have a comment on what 3FF stands for and it's
relation to clock in MHz.
> #define CLKD_MASK 0x0000FFC0
> #define CLKD_SHIFT 6
> #define DTO_MASK 0x000F0000
> @@ -478,8 +479,8 @@ static u16 calc_divisor(struct omap_hsmmc_host *host, struct mmc_ios *ios)
>
> if (ios->clock) {
> dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock);
> - if (dsor > 250)
> - dsor = 250;
> + if (dsor > CLKD_MAX)
> + dsor = CLKD_MAX;
Can these two lines be written in one line as
"dsor &= CLKD_MAX; " ?
> }
>
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