Add tracepoints to the Qualcomm GENI (Generic Interface) SPI driver. These trace events enable runtime debugging and performance analysis of SPI operations.
The trace events capture SPI clock configuration, FIFO parameters, transfer details, interrupt status, and actual transmitted/received data in hexadecimal format. Usage examples: Enable all SPI traces: echo 1 > /sys/kernel/debug/tracing/events/qcom_geni_spi/enable cat /sys/kernel/debug/tracing/trace_pipe Example trace output: 71.364028: geni_spi_fifo_params: 888000.spi: cs=0 mode=0x00000020 mode_changed=0x00000020 cs_changed=0 71.364054: geni_spi_clk_cfg: 888000.spi: req_hz=10000000 sclk_hz=100000000 clk_idx=5 clk_div=10 bpw=8 71.364095: geni_spi_transfer: 888000.spi: len=16 m_cmd=0x00000003 71.364096: geni_spi_tx_data: 888000.spi: tx_len=16 tx_rem=0 data=56 f1 0d 95 c1 09 33 d2 27 e7 ec 9d 9c e2 11 ff 71.364121: geni_spi_irq: 888000.spi: m_irq=0x08000081 dma_tx=0x00000000 dma_rx=0x00000000 71.364126: geni_spi_rx_data: 888000.spi: rx_len=16 rx_rem=0 data=56 f1 0d 95 c1 09 33 d2 27 e7 ec 9d 9c e2 11 ff Signed-off-by: Praveen Talari <[email protected]> --- Praveen Talari (2): spi: qcom-geni: trace: Add trace events for Qualcomm GENI SPI spi: qcom-geni: Add trace events for Qualcomm GENI SPI driver drivers/spi/spi-geni-qcom.c | 17 ++++ include/trace/events/qcom_geni_spi.h | 147 +++++++++++++++++++++++++++++++++++ 2 files changed, 164 insertions(+) --- base-commit: 1f5ffc672165ff851063a5fd044b727ab2517ae3 change-id: 20260506-add-tracepoints-for-qcom-geni-spi-e31457c2267c Best regards, -- Praveen Talari <[email protected]>
