On Wed, Sep 14, 2016 at 04:02:30PM +0300, Grygorii Strashko wrote:
> @@ -427,9 +427,6 @@ static void cpts_calc_mult_shift(struct cpts *cpts)
> u64 ns;
> u64 frac;
>
> - if (cpts->cc_mult || cpts->cc.shift)
> - return;
> -
> freq = clk_get_rate(cpts->refclk);
>
> /* Calc the maximum number of seconds which we can run before
This hunk has nothing to do with $subject.
> @@ -442,11 +439,20 @@ static void cpts_calc_mult_shift(struct cpts *cpts)
> else if (maxsec > 600 && cpts->cc.mask > UINT_MAX)
> maxsec = 600;
>
> + /* Calc overflow check period (maxsec / 2) */
> + cpts->ov_check_period = (HZ * maxsec) / 2;
> + dev_info(cpts->dev, "cpts: overflow check period %lu\n",
> + cpts->ov_check_period);
> +
> + if (cpts->cc_mult || cpts->cc.shift)
> + return;
> +
> clocks_calc_mult_shift(&mult, &shift, freq, NSEC_PER_SEC, maxsec);
>
> cpts->cc_mult = mult;
> cpts->cc.mult = mult;
> cpts->cc.shift = shift;
> +
Nor does this.
Thanks,
Richard
> /* Check calculations and inform if not precise */
> frac = 0;
> ns = cyclecounter_cyc2ns(&cpts->cc, freq, cpts->cc.mask, &frac);
> diff --git a/drivers/net/ethernet/ti/cpts.h b/drivers/net/ethernet/ti/cpts.h
> index 47026ec..e0e4a62b 100644
> --- a/drivers/net/ethernet/ti/cpts.h
> +++ b/drivers/net/ethernet/ti/cpts.h
> @@ -97,9 +97,6 @@ enum {
> CPTS_EV_TX, /* Ethernet Transmit Event */
> };
>
> -/* This covers any input clock up to about 500 MHz. */
> -#define CPTS_OVERFLOW_PERIOD (HZ * 8)
> -
> #define CPTS_FIFO_DEPTH 16
> #define CPTS_MAX_EVENTS 32
>
> @@ -127,6 +124,7 @@ struct cpts {
> struct list_head events;
> struct list_head pool;
> struct cpts_event pool_data[CPTS_MAX_EVENTS];
> + unsigned long ov_check_period;
> };
>
> int cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb);
> --
> 2.9.3
>
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