diff options
| author | Horatiu Vultur <horatiu.vultur@microchip.com> | 2022-04-27 08:51:27 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-27 12:03:18 +0100 |
| commit | f3d8e0a9c28ba0bb3716dd5e8697a075ea36fdd8 (patch) | |
| tree | 7b30f621f6a22a45334606aea0365db4105f0bc0 /drivers/net/ethernet/microchip/lan966x/lan966x_main.c | |
| parent | 2b7ff2588ec21dde8a3a66dc927e4e653b175ddb (diff) | |
net: lan966x: Add support for PTP_PF_EXTTS
Extend the PTP programmable pins to implement also PTP_PF_EXTTS
function. The PTP pin can be configured to capture only on the rising
edge of the PPS signal. And once an event is seen then an interrupt is
generated and the local time counter is saved.
The interrupt is shared between all the pins.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_main.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c index afec115e46eb..6579c7062aa5 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c @@ -692,6 +692,9 @@ static void lan966x_cleanup_ports(struct lan966x *lan966x) if (lan966x->ptp_irq) devm_free_irq(lan966x->dev, lan966x->ptp_irq, lan966x); + + if (lan966x->ptp_ext_irq) + devm_free_irq(lan966x->dev, lan966x->ptp_ext_irq, lan966x); } static int lan966x_probe_port(struct lan966x *lan966x, u32 p, @@ -1058,6 +1061,20 @@ static int lan966x_probe(struct platform_device *pdev) lan966x->fdma = true; } + if (lan966x->ptp) { + lan966x->ptp_ext_irq = platform_get_irq_byname(pdev, "ptp-ext"); + if (lan966x->ptp_ext_irq > 0) { + err = devm_request_threaded_irq(&pdev->dev, + lan966x->ptp_ext_irq, NULL, + lan966x_ptp_ext_irq_handler, + IRQF_ONESHOT, + "ptp-ext irq", lan966x); + if (err) + return dev_err_probe(&pdev->dev, err, + "Unable to use ptp-ext irq"); + } + } + /* init switch */ lan966x_init(lan966x); lan966x_stats_init(lan966x); |