[PATCH net-next v2 3/5] dp83640: Verify calibration pin assignment
From: Stefan Sørensen <hidden>
Date: 2014-06-27 10:06:05
Subsystem:
ethernet phy library, networking drivers, ptp hardware clock support, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Richard Cochran, Linus Torvalds
This constraints the pin assignment to not allow the calibration function to be reassigned and only allow reassigning the calibratin pin if only one phy is connected. Signed-off-by: Stefan Sørensen <redacted> --- drivers/net/phy/dp83640.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index eabecff..ab48112 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c@@ -510,6 +510,16 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp, static int ptp_dp83640_verify(struct ptp_clock_info *ptp, unsigned int pin, enum ptp_pin_function func, unsigned int chan) { + struct dp83640_clock *clock = + container_of(ptp, struct dp83640_clock, caps); + + if (clock->caps.pin_config[pin].func == PTP_PF_PHYSYNC && + !list_empty(&clock->phylist)) + return 1; + + if (func == PTP_PF_PHYSYNC) + return 1; + return 0; }
--
1.9.3