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PTP: add support for one-shot output

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Some controllers allow for a one-shot output pulse, in contrast to
periodic output. Now that we have extensible versions of our IOCTLs, we
can finally make use of the 'flags' field to pass a bit telling driver
that if we want one-shot pulse output.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Felipe Balbi 2019-09-11 09:16:22 +03:00 committed by David S. Miller
parent 415606588c
commit 823eb2a3c4
1 changed files with 3 additions and 3 deletions
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6
include/uapi/linux/ptp_clock.h
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@ -38,8 +38,8 @@
/*
* Bits of the ptp_perout_request.flags field:
*/
#define PTP_PEROUT_VALID_FLAGS (0)
#define PTP_PEROUT_ONE_SHOT (1<<0)
#define PTP_PEROUT_VALID_FLAGS (PTP_PEROUT_ONE_SHOT)
/*
* struct ptp_clock_time - represents a time value
*
@ -77,7 +77,7 @@ struct ptp_perout_request {
struct ptp_clock_time start; /* Absolute start time. */
struct ptp_clock_time period; /* Desired period, zero means disable. */
unsigned int index; /* Which channel to configure. */
unsigned int flags; /* Reserved for future use. */
unsigned int flags;
unsigned int rsv[4]; /* Reserved for future use. */
};