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3dae106f4c
Record and report an error code for the events. This allows to report about failed calls without ambiguity and so gives a more complete picture. Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20221130152148.2769768-3-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM pwm
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#if !defined(_TRACE_PWM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_PWM_H
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#include <linux/pwm.h>
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#include <linux/tracepoint.h>
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DECLARE_EVENT_CLASS(pwm,
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TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
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TP_ARGS(pwm, state, err),
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TP_STRUCT__entry(
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__field(struct pwm_device *, pwm)
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__field(u64, period)
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__field(u64, duty_cycle)
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__field(enum pwm_polarity, polarity)
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__field(bool, enabled)
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__field(int, err)
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),
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TP_fast_assign(
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__entry->pwm = pwm;
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__entry->period = state->period;
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__entry->duty_cycle = state->duty_cycle;
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__entry->polarity = state->polarity;
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__entry->enabled = state->enabled;
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__entry->err = err;
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),
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TP_printk("%p: period=%llu duty_cycle=%llu polarity=%d enabled=%d err=%d",
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__entry->pwm, __entry->period, __entry->duty_cycle,
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__entry->polarity, __entry->enabled, __entry->err)
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);
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DEFINE_EVENT(pwm, pwm_apply,
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TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
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TP_ARGS(pwm, state, err)
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);
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DEFINE_EVENT(pwm, pwm_get,
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TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
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TP_ARGS(pwm, state, err)
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);
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#endif /* _TRACE_PWM_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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