diff options
| -rw-r--r-- | drivers/spmi/spmi.c | 22 | ||||
| -rw-r--r-- | include/trace/events/spmi.h | 135 |
2 files changed, 154 insertions, 3 deletions
diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c index 94938436aef9..11467e17bdd8 100644 --- a/drivers/spmi/spmi.c +++ b/drivers/spmi/spmi.c @@ -22,6 +22,8 @@ #include <linux/pm_runtime.h> #include <dt-bindings/spmi/spmi.h> +#define CREATE_TRACE_POINTS +#include <trace/events/spmi.h> static DEFINE_IDA(ctrl_ida); @@ -96,28 +98,42 @@ EXPORT_SYMBOL_GPL(spmi_device_remove); static inline int spmi_cmd(struct spmi_controller *ctrl, u8 opcode, u8 sid) { + int ret; + if (!ctrl || !ctrl->cmd || ctrl->dev.type != &spmi_ctrl_type) return -EINVAL; - return ctrl->cmd(ctrl, opcode, sid); + ret = ctrl->cmd(ctrl, opcode, sid); + trace_spmi_cmd(opcode, sid, ret); + return ret; } static inline int spmi_read_cmd(struct spmi_controller *ctrl, u8 opcode, u8 sid, u16 addr, u8 *buf, size_t len) { + int ret; + if (!ctrl || !ctrl->read_cmd || ctrl->dev.type != &spmi_ctrl_type) return -EINVAL; - return ctrl->read_cmd(ctrl, opcode, sid, addr, buf, len); + trace_spmi_read_begin(opcode, sid, addr); + ret = ctrl->read_cmd(ctrl, opcode, sid, addr, buf, len); + trace_spmi_read_end(opcode, sid, addr, ret, len, buf); + return ret; } static inline int spmi_write_cmd(struct spmi_controller *ctrl, u8 opcode, u8 sid, u16 addr, const u8 *buf, size_t len) { + int ret; + if (!ctrl || !ctrl->write_cmd || ctrl->dev.type != &spmi_ctrl_type) return -EINVAL; - return ctrl->write_cmd(ctrl, opcode, sid, addr, buf, len); + trace_spmi_write_begin(opcode, sid, addr, len, buf); + ret = ctrl->write_cmd(ctrl, opcode, sid, addr, buf, len); + trace_spmi_write_end(opcode, sid, addr, ret); + return ret; } /** diff --git a/include/trace/events/spmi.h b/include/trace/events/spmi.h new file mode 100644 index 000000000000..62f005ef4c7e --- /dev/null +++ b/include/trace/events/spmi.h @@ -0,0 +1,135 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM spmi + +#if !defined(_TRACE_SPMI_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_SPMI_H + +#include <linux/spmi.h> +#include <linux/tracepoint.h> + +/* + * drivers/spmi/spmi.c + */ + +TRACE_EVENT(spmi_write_begin, + TP_PROTO(u8 opcode, u8 sid, u16 addr, u8 len, const u8 *buf), + TP_ARGS(opcode, sid, addr, len, buf), + + TP_STRUCT__entry( + __field ( u8, opcode ) + __field ( u8, sid ) + __field ( u16, addr ) + __field ( u8, len ) + __dynamic_array ( u8, buf, len + 1 ) + ), + + TP_fast_assign( + __entry->opcode = opcode; + __entry->sid = sid; + __entry->addr = addr; + __entry->len = len + 1; + memcpy(__get_dynamic_array(buf), buf, len + 1); + ), + + TP_printk("opc=%d sid=%02d addr=0x%04x len=%d buf=0x[%*phD]", + (int)__entry->opcode, (int)__entry->sid, + (int)__entry->addr, (int)__entry->len, + (int)__entry->len, __get_dynamic_array(buf)) +); + +TRACE_EVENT(spmi_write_end, + TP_PROTO(u8 opcode, u8 sid, u16 addr, int ret), + TP_ARGS(opcode, sid, addr, ret), + + TP_STRUCT__entry( + __field ( u8, opcode ) + __field ( u8, sid ) + __field ( u16, addr ) + __field ( int, ret ) + ), + + TP_fast_assign( + __entry->opcode = opcode; + __entry->sid = sid; + __entry->addr = addr; + __entry->ret = ret; + ), + + TP_printk("opc=%d sid=%02d addr=0x%04x ret=%d", + (int)__entry->opcode, (int)__entry->sid, + (int)__entry->addr, __entry->ret) +); + +TRACE_EVENT(spmi_read_begin, + TP_PROTO(u8 opcode, u8 sid, u16 addr), + TP_ARGS(opcode, sid, addr), + + TP_STRUCT__entry( + __field ( u8, opcode ) + __field ( u8, sid ) + __field ( u16, addr ) + ), + + TP_fast_assign( + __entry->opcode = opcode; + __entry->sid = sid; + __entry->addr = addr; + ), + + TP_printk("opc=%d sid=%02d addr=0x%04x", + (int)__entry->opcode, (int)__entry->sid, + (int)__entry->addr) +); + +TRACE_EVENT(spmi_read_end, + TP_PROTO(u8 opcode, u8 sid, u16 addr, int ret, u8 len, const u8 *buf), + TP_ARGS(opcode, sid, addr, ret, len, buf), + + TP_STRUCT__entry( + __field ( u8, opcode ) + __field ( u8, sid ) + __field ( u16, addr ) + __field ( int, ret ) + __field ( u8, len ) + __dynamic_array ( u8, buf, len + 1 ) + ), + + TP_fast_assign( + __entry->opcode = opcode; + __entry->sid = sid; + __entry->addr = addr; + __entry->ret = ret; + __entry->len = len + 1; + memcpy(__get_dynamic_array(buf), buf, len + 1); + ), + + TP_printk("opc=%d sid=%02d addr=0x%04x ret=%d len=%02d buf=0x[%*phD]", + (int)__entry->opcode, (int)__entry->sid, + (int)__entry->addr, __entry->ret, (int)__entry->len, + (int)__entry->len, __get_dynamic_array(buf)) +); + +TRACE_EVENT(spmi_cmd, + TP_PROTO(u8 opcode, u8 sid, int ret), + TP_ARGS(opcode, sid, ret), + + TP_STRUCT__entry( + __field ( u8, opcode ) + __field ( u8, sid ) + __field ( int, ret ) + ), + + TP_fast_assign( + __entry->opcode = opcode; + __entry->sid = sid; + __entry->ret = ret; + ), + + TP_printk("opc=%d sid=%02d ret=%d", (int)__entry->opcode, + (int)__entry->sid, ret) +); + +#endif /* _TRACE_SPMI_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |