On Mon, Oct 09, 2017 at 04:08:50PM -0600, Levi Pearson wrote:
> Another issue related to this is that while the free-running counter
> in the hardware can't be easily adjusted, the periodic event generator
> *can* be finely adjusted (via picosecond and sub-picosecond
> accumulators) to correct for
On Sun, Oct 8, 2017 at 9:06 AM, Richard Cochran
wrote:
>> +static int mv88e6xxx_ptp_enable_perout(struct mv88e6xxx_chip *chip,
>> +struct ptp_clock_request *rq, int on)
>> +{
>> + struct timespec ts;
>> + u64 ns;
>> + int pin;
>> + int err;
>> +
There are some issues here.
On Thu, Sep 28, 2017 at 10:25:36AM -0500, Brandon Streiff wrote:
> +static int mv88e6xxx_config_periodic_trig(struct mv88e6xxx_chip *chip,
> + u32 ns, u16 picos)
> +{
> + int err;
> + u16 global_config;
> +
> + if (pico
This patch adds support for configuring mv88e6xxx GPIO lines as PTP
pins, so that they may be used for time stamping external events or for
periodic output.
Signed-off-by: Brandon Streiff
---
drivers/net/dsa/mv88e6xxx/chip.h | 4 +
drivers/net/dsa/mv88e6xxx/ptp.c | 317 +++
