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i2c: qcom-geni: trace: Add trace events for Qualcomm GENI I2C

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Add trace event support to the Qualcomm GENI I2C driver to enable
detailed runtime debugging and analysis.

The trace events capture I2C clock configuration, interrupt status
and error code and message.

Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260703-add-tracepoints-for-qcom-geni-i2c-v2-1-e8bf8b178290@oss.qualcomm.com
This commit is contained in:
Praveen Talari
2026-07-28 23:49:43 +02:00
committed by Andi Shyti
parent a477626332
commit d3de2edd75
1 changed files with 82 additions and 0 deletions
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include/trace/events/qcom_geni_i2c.h
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/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM qcom_geni_i2c
#if !defined(_TRACE_QCOM_GENI_I2C_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_QCOM_GENI_I2C_H
#include <linux/tracepoint.h>
TRACE_EVENT(geni_i2c_bus_setup,
TP_PROTO(struct device *dev, u32 clk_freq, u8 clk_div,
u8 t_high_cnt, u8 t_low_cnt, u8 t_cycle_cnt),
TP_ARGS(dev, clk_freq, clk_div, t_high_cnt, t_low_cnt, t_cycle_cnt),
TP_STRUCT__entry(__string(name, dev_name(dev))
__field(u32, clk_freq)
__field(u8, clk_div)
__field(u8, t_high_cnt)
__field(u8, t_low_cnt)
__field(u8, t_cycle_cnt)
),
TP_fast_assign(__assign_str(name);
__entry->clk_freq = clk_freq;
__entry->clk_div = clk_div;
__entry->t_high_cnt = t_high_cnt;
__entry->t_low_cnt = t_low_cnt;
__entry->t_cycle_cnt = t_cycle_cnt;
),
TP_printk("%s: clk_freq=%u clk_div=%u t_high=%u t_low=%u t_cycle=%u",
__get_str(name), __entry->clk_freq, __entry->clk_div,
__entry->t_high_cnt, __entry->t_low_cnt,
__entry->t_cycle_cnt)
);
TRACE_EVENT(geni_i2c_irq,
TP_PROTO(struct device *dev, u32 m_stat, u32 rx_st,
u32 dm_tx_st, u32 dm_rx_st),
TP_ARGS(dev, m_stat, rx_st, dm_tx_st, dm_rx_st),
TP_STRUCT__entry(__string(name, dev_name(dev))
__field(u32, m_stat)
__field(u32, rx_st)
__field(u32, dm_tx_st)
__field(u32, dm_rx_st)
),
TP_fast_assign(__assign_str(name);
__entry->m_stat = m_stat;
__entry->rx_st = rx_st;
__entry->dm_tx_st = dm_tx_st;
__entry->dm_rx_st = dm_rx_st;
),
TP_printk("%s: m_stat=0x%08x rx_st=0x%08x dm_tx=0x%08x dm_rx=0x%08x",
__get_str(name), __entry->m_stat, __entry->rx_st,
__entry->dm_tx_st, __entry->dm_rx_st)
);
TRACE_EVENT(geni_i2c_err,
TP_PROTO(struct device *dev, int err, const char *msg),
TP_ARGS(dev, err, msg),
TP_STRUCT__entry(__string(name, dev_name(dev))
__field(int, err)
__string(msg, msg)
),
TP_fast_assign(__assign_str(name);
__entry->err = err;
__assign_str(msg);
),
TP_printk("%s: err=%d msg=%s",
__get_str(name), __entry->err, __get_str(msg))
);
#endif /* _TRACE_QCOM_GENI_I2C_H */
/* This part must be outside protection */
#include <trace/define_trace.h>