diff options
| author | Bin Liu | 2016-06-30 19:12:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2016-07-17 01:23:57 +0200 |
| commit | cfb9a1bc6e65c6093ed5ac4f1c0cc20a9f25d597 (patch) | |
| tree | a7545ead6d68ced863051ef70a95c8ad95a60b65 | |
| parent | usb: musb: add tracepoints for register access (diff) | |
| download | kernel-qcow2-linux-cfb9a1bc6e65c6093ed5ac4f1c0cc20a9f25d597.tar.gz kernel-qcow2-linux-cfb9a1bc6e65c6093ed5ac4f1c0cc20a9f25d597.tar.xz kernel-qcow2-linux-cfb9a1bc6e65c6093ed5ac4f1c0cc20a9f25d597.zip | |
usb: musb: add tracepoints to dump interrupt events
This adds tracepoints to dump musb interrupt events.
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 4 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_trace.h | 21 |
2 files changed, 22 insertions, 3 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index c0c81ae6e6ed..74fc3069cb42 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1588,9 +1588,7 @@ irqreturn_t musb_interrupt(struct musb *musb) devctl = musb_readb(musb->mregs, MUSB_DEVCTL); - dev_dbg(musb->controller, "** IRQ %s usb%04x tx%04x rx%04x\n", - is_host_active(musb) ? "host" : "peripheral", - musb->int_usb, musb->int_tx, musb->int_rx); + trace_musb_isr(musb); /** * According to Mentor Graphics' documentation, flowchart on page 98, diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h index c974f48ee5d8..98acc1e0a7a0 100644 --- a/drivers/usb/musb/musb_trace.h +++ b/drivers/usb/musb/musb_trace.h @@ -128,6 +128,27 @@ DEFINE_EVENT(musb_regl, musb_writel, TP_ARGS(caller, addr, offset, data) ); +TRACE_EVENT(musb_isr, + TP_PROTO(struct musb *musb), + TP_ARGS(musb), + TP_STRUCT__entry( + __string(name, dev_name(musb->controller)) + __field(u8, int_usb) + __field(u16, int_tx) + __field(u16, int_rx) + ), + TP_fast_assign( + __assign_str(name, dev_name(musb->controller)); + __entry->int_usb = musb->int_usb; + __entry->int_tx = musb->int_tx; + __entry->int_rx = musb->int_rx; + ), + TP_printk("%s: usb %02x, tx %04x, rx %04x", + __get_str(name), __entry->int_usb, + __entry->int_tx, __entry->int_rx + ) +); + #endif /* __MUSB_TRACE_H */ /* this part has to be here */ |