diff options
Diffstat (limited to 'drivers/spmi/spmi.c')
| -rw-r--r-- | drivers/spmi/spmi.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c index 9493843..11467e1 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; } /** |