Commit 566c2d83 authored by Francesco Dolcini's avatar Francesco Dolcini Committed by Paolo Abeni
Browse files

net: fec: make PPS channel configurable 



Depending on the SoC where the FEC is integrated into the PPS channel
might be routed to different timer instances. Make this configurable
from the devicetree.

When the related DT property is not present fallback to the previous
default and use channel 0.

Reviewed-by: default avatarFrank Li <Frank.Li@nxp.com>
Tested-by: default avatarRafael Beims <rafael.beims@toradex.com>
Signed-off-by: default avatarFrancesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: default avatarCsókás, Bence <csokas.bence@prolan.hu>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent bf8ca67e

drivers/net/ethernet/freescale/fec_ptp.c

+4 −2
Original line number Diff line number Diff line
@@ -523,8 +523,6 @@ static int fec_ptp_enable(struct ptp_clock_info *ptp, 
	unsigned long flags;

	int ret = 0;



	fep->pps_channel = DEFAULT_PPS_CHANNEL;



	if (rq->type == PTP_CLK_REQ_PPS) {

		fep->reload_period = PPS_OUPUT_RELOAD_PERIOD;
@@ -706,12 +704,16 @@ void fec_ptp_init(struct platform_device *pdev, int irq_idx) 
{

	struct net_device *ndev = platform_get_drvdata(pdev);

	struct fec_enet_private *fep = netdev_priv(ndev);

	struct device_node *np = fep->pdev->dev.of_node;

	int irq;

	int ret;



	fep->ptp_caps.owner = THIS_MODULE;

	strscpy(fep->ptp_caps.name, "fec ptp", sizeof(fep->ptp_caps.name));



	fep->pps_channel = DEFAULT_PPS_CHANNEL;

	of_property_read_u32(np, "fsl,pps-channel", &fep->pps_channel);



	fep->ptp_caps.max_adj = 250000000;

	fep->ptp_caps.n_alarm = 0;

	fep->ptp_caps.n_ext_ts = 0;