From: Mark Brown Date: Tue, 19 May 2026 13:12:58 +0000 (+0100) Subject: spi: Add trace events for Qualcomm GENI SPI drivers X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=638f5500111c27379e16a7cf5599f23094bfb7ae;p=thirdparty%2Fkernel%2Flinux.git spi: Add trace events for Qualcomm GENI SPI drivers Praveen Talari says: 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, setup parameters, transfer details, interrupt status. Usage examples: Enable all SPI traces: echo 1 > /sys/kernel/tracing/events/spi/enable echo 1 > /sys/kernel/debug/tracing/events/qcom_geni_spi/enable cat /sys/kernel/debug/tracing/trace_pipe Example trace output: 1003.956560: spi_message_submit: spi16.0 000000001b20b93c 1003.956642: spi_controller_busy: spi16 1003.956643: spi_message_start: spi16.0 000000001b20b93c 1003.956646: geni_spi_setup_params: 888000.spi: cs=0 mode=0x00000020 mode_changed=0x00000007 cs_changed=0 1003.956647: spi_set_cs: spi16.0 activate 1003.956648: spi_transfer_start: spi16.0 00000000ea1cf8b6 len=16 tx=[4c-80-e4-ca-68-4d-95-aa-ee-99-ae-d7-69-e9-5f-39] rx=[00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00] 1003.956653: geni_spi_clk_cfg: 888000.spi: req_hz=20000000 sclk_hz=100000000 clk_idx=5 clk_div=5 bpw=8 1003.956691: geni_spi_transfer: 888000.spi: len=16 m_cmd=0x00000003 1003.956708: geni_spi_irq: 888000.spi: m_irq=0x08000081 dma_tx=0x00000000 dma_rx=0x00000000 1003.956717: spi_transfer_stop: spi16.0 00000000ea1cf8b6 len=16 tx=[4c-80-e4-ca-68-4d-95-aa-ee-99-ae-d7-69-e9-5f-39] rx=[4c-80-e4-ca-68-4d-95-aa-ee-99-ae-d7-69-e9-5f-39] 1003.956717: spi_set_cs: spi16.0 deactivate 1003.956718: spi_message_done: spi16.0 000000001b20b93c len=16/16 Link: https://patch.msgid.link/20260518-add-tracepoints-for-qcom-geni-spi-v3-0-7928f6810a79@oss.qualcomm.com --- 638f5500111c27379e16a7cf5599f23094bfb7ae