From: Felipe Balbi <felipe.balbi@linux.intel.com>
Date: Wed, 11 Sep 2019 09:16:22 +0300
Subject: PTP: add support for one-shot output
Patch-mainline: v5.4-rc1
Git-commit: 823eb2a3c4c7f1b3e749f0dddb70bf8b09a76a10
References: bsc#1176447
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
include/uapi/linux/ptp_clock.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/include/uapi/linux/ptp_clock.h
+++ b/include/uapi/linux/ptp_clock.h
@@ -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. */
};