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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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bf62d130b1
Add tracepoint support to the Qualcomm GENI SPI driver to provide runtime visibility into driver behavior without requiring invasive debug patches. The trace events cover clock and setup parameter configuration, transfer metadata, interrupt status to be making it easier to diagnose communication issues in the field.. Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com> Link: https://patch.msgid.link/20260518-add-tracepoints-for-qcom-geni-spi-v3-1-7928f6810a79@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM qcom_geni_spi
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#if !defined(_TRACE_QCOM_GENI_SPI_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_QCOM_GENI_SPI_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(geni_spi_setup_params,
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TP_PROTO(struct device *dev, u8 cs, u32 mode,
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u32 mode_changed, bool cs_changed),
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TP_ARGS(dev, cs, mode, mode_changed, cs_changed),
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TP_STRUCT__entry(__string(name, dev_name(dev))
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__field(u8, cs)
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__field(u32, mode)
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__field(u32, mode_changed)
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__field(bool, cs_changed)
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),
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TP_fast_assign(__assign_str(name);
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__entry->cs = cs;
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__entry->mode = mode;
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__entry->mode_changed = mode_changed;
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__entry->cs_changed = cs_changed;
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),
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TP_printk("%s: cs=%u mode=0x%08x mode_changed=0x%08x cs_changed=%d",
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__get_str(name), __entry->cs, __entry->mode,
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__entry->mode_changed, __entry->cs_changed)
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);
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TRACE_EVENT(geni_spi_clk_cfg,
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TP_PROTO(struct device *dev, unsigned long req_hz,
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unsigned long sclk_hz, unsigned int clk_idx,
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unsigned int clk_div, unsigned int bpw),
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TP_ARGS(dev, req_hz, sclk_hz, clk_idx, clk_div, bpw),
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TP_STRUCT__entry(__string(name, dev_name(dev))
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__field(unsigned long, req_hz)
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__field(unsigned long, sclk_hz)
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__field(unsigned int, clk_idx)
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__field(unsigned int, clk_div)
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__field(unsigned int, bpw)
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),
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TP_fast_assign(__assign_str(name);
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__entry->req_hz = req_hz;
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__entry->sclk_hz = sclk_hz;
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__entry->clk_idx = clk_idx;
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__entry->clk_div = clk_div;
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__entry->bpw = bpw;
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),
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TP_printk("%s: req_hz=%lu sclk_hz=%lu clk_idx=%u clk_div=%u bpw=%u",
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__get_str(name), __entry->req_hz, __entry->sclk_hz,
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__entry->clk_idx, __entry->clk_div, __entry->bpw)
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);
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TRACE_EVENT(geni_spi_transfer,
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TP_PROTO(struct device *dev, unsigned int len, u32 m_cmd),
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TP_ARGS(dev, len, m_cmd),
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TP_STRUCT__entry(__string(name, dev_name(dev))
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__field(unsigned int, len)
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__field(u32, m_cmd)
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),
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TP_fast_assign(__assign_str(name);
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__entry->len = len;
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__entry->m_cmd = m_cmd;
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),
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TP_printk("%s: len=%u m_cmd=0x%08x",
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__get_str(name), __entry->len, __entry->m_cmd)
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);
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TRACE_EVENT(geni_spi_irq,
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TP_PROTO(struct device *dev, u32 m_irq, u32 dma_tx, u32 dma_rx),
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TP_ARGS(dev, m_irq, dma_tx, dma_rx),
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TP_STRUCT__entry(__string(name, dev_name(dev))
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__field(u32, m_irq)
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__field(u32, dma_tx)
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__field(u32, dma_rx)
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),
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TP_fast_assign(__assign_str(name);
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__entry->m_irq = m_irq;
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__entry->dma_tx = dma_tx;
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__entry->dma_rx = dma_rx;
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),
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TP_printk("%s: m_irq=0x%08x dma_tx=0x%08x dma_rx=0x%08x",
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__get_str(name), __entry->m_irq, __entry->dma_tx,
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__entry->dma_rx)
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);
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#endif /* _TRACE_QCOM_GENI_SPI_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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