net: mscc: ocelot: move ocelot ptp clock code out of ocelot.c

The Ocelot PTP clock driver had been embedded into ocelot.c driver.
It had supported basic gettime64/settime64/adjtime/adjfine functions
by now which were used by both Ocelot switch and Felix switch.

This patch is to move current ptp clock code out of ocelot.c driver
maintaining as a single ocelot_ptp.c.
For futher new features implementation, the common code could be put
in ocelot_ptp.c and the switch specific code should be in specific
switch driver. The interrupt implementation in SoC is different
between Ocelot and Felix.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mscc/ocelot_board.c b/drivers/net/ethernet/mscc/ocelot_board.c
index 0ac9fbf77a01..ee016f7ed934 100644
--- a/drivers/net/ethernet/mscc/ocelot_board.c
+++ b/drivers/net/ethernet/mscc/ocelot_board.c
@@ -366,6 +366,21 @@ static const struct vcap_props vsc7514_vcap_props[] = {
 	},
 };
 
+static struct ptp_clock_info ocelot_ptp_clock_info = {
+	.owner		= THIS_MODULE,
+	.name		= "ocelot ptp",
+	.max_adj	= 0x7fffffff,
+	.n_alarm	= 0,
+	.n_ext_ts	= 0,
+	.n_per_out	= 0,
+	.n_pins		= 0,
+	.pps		= 0,
+	.gettime64	= ocelot_ptp_gettime64,
+	.settime64	= ocelot_ptp_settime64,
+	.adjtime	= ocelot_ptp_adjtime,
+	.adjfine	= ocelot_ptp_adjfine,
+};
+
 static int mscc_ocelot_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -469,6 +484,15 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
 	ocelot->vcap = vsc7514_vcap_props;
 
 	ocelot_init(ocelot);
+	if (ocelot->ptp) {
+		err = ocelot_init_timestamp(ocelot, &ocelot_ptp_clock_info);
+		if (err) {
+			dev_err(ocelot->dev,
+				"Timestamp initialization failed\n");
+			ocelot->ptp = 0;
+		}
+	}
+
 	/* No NPI port */
 	ocelot_configure_cpu(ocelot, -1, OCELOT_TAG_PREFIX_NONE,
 			     OCELOT_TAG_PREFIX_NONE);
@@ -574,6 +598,7 @@ static int mscc_ocelot_remove(struct platform_device *pdev)
 {
 	struct ocelot *ocelot = platform_get_drvdata(pdev);
 
+	ocelot_deinit_timestamp(ocelot);
 	ocelot_deinit(ocelot);
 	unregister_switchdev_blocking_notifier(&ocelot_switchdev_blocking_nb);
 	unregister_switchdev_notifier(&ocelot_switchdev_nb);