aboutsummaryrefslogtreecommitdiff
path: root/drivers/ptp/ptp_qoriq.c
diff options
context:
space:
mode:
authorYangbo Lu <yangbo.lu@nxp.com>2019-01-21 18:41:42 +0800
committerDavid S. Miller <davem@davemloft.net>2019-01-22 20:21:57 -0800
commit19df7510d5cf077c2e88a7690fb7617e6d341beb (patch)
tree8f1c49592e7b63d60ff65a299078a6192005f8af /drivers/ptp/ptp_qoriq.c
parent47205e2985d9338ccdb5ffc84147260ed7864015 (diff)
downloadlinux-19df7510d5cf077c2e88a7690fb7617e6d341beb.tar.gz
ptp: add debugfs support for ptp_qoriq
This patch is to add debugfs support for ptp_qoriq. Current debugfs supports to control fiper1/fiper2 loopback mode. If the loopback mode is enabled, the fiper1/fiper2 pulse is looped back into trigger1/ trigger2 input. This is very useful for validating hardware and driver without external hardware. Below is an example to enable fiper1 loopback. echo 1 > /sys/kernel/debug/2d10e00.ptp_clock/fiper1-loopback Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp/ptp_qoriq.c')
-rw-r--r--drivers/ptp/ptp_qoriq.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_qoriq.c b/drivers/ptp/ptp_qoriq.c
index a2e7702db3a4..43416b2e8a13 100644
--- a/drivers/ptp/ptp_qoriq.c
+++ b/drivers/ptp/ptp_qoriq.c
@@ -471,6 +471,7 @@ static int qoriq_ptp_probe(struct platform_device *dev)
err = -EINVAL;
+ qoriq_ptp->dev = &dev->dev;
qoriq_ptp->caps = ptp_qoriq_caps;
if (of_property_read_u32(node, "fsl,cksel", &qoriq_ptp->cksel))
@@ -572,6 +573,7 @@ static int qoriq_ptp_probe(struct platform_device *dev)
}
qoriq_ptp->phc_index = ptp_clock_index(qoriq_ptp->clock);
+ ptp_qoriq_create_debugfs(qoriq_ptp);
platform_set_drvdata(dev, qoriq_ptp);
return 0;
@@ -597,6 +599,7 @@ static int qoriq_ptp_remove(struct platform_device *dev)
qoriq_write(&regs->ctrl_regs->tmr_temask, 0);
qoriq_write(&regs->ctrl_regs->tmr_ctrl, 0);
+ ptp_qoriq_remove_debugfs(qoriq_ptp);
ptp_clock_unregister(qoriq_ptp->clock);
iounmap(qoriq_ptp->base);
release_resource(qoriq_ptp->rsrc);