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| author |   Yangbo Lu <yangbo.lu@nxp.com> | 2019-01-21 18:41:42 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-01-22 20:21:57 -0800 |
| commit | 19df7510d5cf077c2e88a7690fb7617e6d341beb (patch) | |
| tree | 8f1c49592e7b63d60ff65a299078a6192005f8af /include/linux/fsl | |
| parent | ARM: dts: ls1021a: add 1588 external trigger stamp fifo support (diff) | |
| download | wireguard-linux-19df7510d5cf077c2e88a7690fb7617e6d341beb.tar.xz wireguard-linux-19df7510d5cf077c2e88a7690fb7617e6d341beb.zip | |
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 'include/linux/fsl')
| -rw-r--r-- | include/linux/fsl/ptp_qoriq.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/fsl/ptp_qoriq.h b/include/linux/fsl/ptp_qoriq.h index 43b4b442f6a4..94e9797e434c 100644 --- a/include/linux/fsl/ptp_qoriq.h +++ b/include/linux/fsl/ptp_qoriq.h @@ -143,6 +143,8 @@ struct qoriq_ptp { struct ptp_clock *clock; struct ptp_clock_info caps; struct resource *rsrc; + struct dentry *debugfs_root; + struct device *dev; bool extts_fifo_support; int irq; int phc_index; @@ -169,4 +171,14 @@ static inline void qoriq_write(unsigned __iomem *addr, u32 val) iowrite32be(val, addr); } +#ifdef CONFIG_DEBUG_FS +void ptp_qoriq_create_debugfs(struct qoriq_ptp *qoriq_ptp); +void ptp_qoriq_remove_debugfs(struct qoriq_ptp *qoriq_ptp); +#else +static inline void ptp_qoriq_create_debugfs(struct qoriq_ptp *qoriq_ptp) +{ } +static inline void ptp_qoriq_remove_debugfs(struct qoriq_ptp *qoriq_ptp) +{ } +#endif + #endif |