diff mbox series

[net-next,v4,3/3] net: fec: make PPS channel configurable

Message ID 20241004152419.79465-4-francesco@dolcini.it (mailing list archive)
State New, archived
Headers show
Series net: fec: add PPS channel configuration | expand

Commit Message

Francesco Dolcini Oct. 4, 2024, 3:24 p.m. UTC 
From: Francesco Dolcini <francesco.dolcini@toradex.com>

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: Frank Li <Frank.Li@nxp.com>
Tested-by: Rafael Beims <rafael.beims@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
v4: no changes
v3: no changes
v2: add Reviewed|Tested-by
---
 drivers/net/ethernet/freescale/fec_ptp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Bence Csókás Oct. 4, 2024, 4:06 p.m. UTC | #1 
On 2024. 10. 04. 17:24, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@toradex.com>
> 
> 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: Frank Li <Frank.Li@nxp.com>
> Tested-by: Rafael Beims <rafael.beims@toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>

Reviewed-by: Csókás, Bence <csokas.bence@prolan.hu>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index ce7aa2c38c7f..aea24575e840 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -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;