diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2019-01-21 13:41:42 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-23 07:21:57 +0300 |
| commit | 19df7510d5cf077c2e88a7690fb7617e6d341beb (patch) | |
| tree | 8f1c49592e7b63d60ff65a299078a6192005f8af /drivers/ptp/ptp_qoriq.c | |
| parent | 47205e2985d9338ccdb5ffc84147260ed7864015 (diff) | |
| download | linux-19df7510d5cf077c2e88a7690fb7617e6d341beb.tar.xz | |
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.c | 3 |
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(®s->ctrl_regs->tmr_temask, 0); qoriq_write(®s->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); |