From f957616d55a829b4695e56d179569f38971b35de Mon Sep 17 00:00:00 2001 From: Praveen Talari Date: Fri, 3 Jul 2026 20:38:10 +0530 Subject: [PATCH] i2c: qcom-geni: Add trace events for Qualcomm GENI I2C driver Add trace event definitions for the Qualcomm GENI (Generic Interface) I2C driver. These trace events enable runtime debugging and performance analysis of I2C operations. The trace events capture I2C clock configuration, interrupt status and error code and message. Reviewed-by: Konrad Dybcio Signed-off-by: Praveen Talari Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20260703-add-tracepoints-for-qcom-geni-i2c-v2-2-e8bf8b178290@oss.qualcomm.com --- drivers/i2c/busses/i2c-qcom-geni.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index ec0bd10e6774..dd488df45c4c 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -1,6 +1,9 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. +#define CREATE_TRACE_POINTS +#include + #include #include #include @@ -225,6 +228,9 @@ static int qcom_geni_i2c_conf(struct geni_se *se, unsigned long freq) val |= itr->t_low_cnt << LOW_COUNTER_SHFT; val |= itr->t_cycle_cnt; writel_relaxed(val, gi2c->se.base + SE_I2C_SCL_COUNTERS); + trace_geni_i2c_bus_setup(gi2c->se.dev, gi2c->clk_freq_out, + itr->clk_div, itr->t_high_cnt, + itr->t_low_cnt, itr->t_cycle_cnt); return 0; } @@ -258,6 +264,8 @@ static void geni_i2c_err(struct geni_i2c_dev *gi2c, int err) dev_dbg(gi2c->se.dev, "len:%d, slv-addr:0x%x, RD/WR:%d\n", gi2c->cur->len, gi2c->cur->addr, gi2c->cur->flags); + trace_geni_i2c_err(gi2c->se.dev, gi2c_log[err].err, gi2c_log[err].msg); + switch (err) { case GENI_ABORT_DONE: case ADDR_NACK: @@ -301,6 +309,8 @@ static irqreturn_t geni_i2c_irq(int irq, void *dev) dma = readl_relaxed(base + SE_GENI_DMA_MODE_EN); cur = gi2c->cur; + trace_geni_i2c_irq(gi2c->se.dev, m_stat, rx_st, dm_tx_st, dm_rx_st); + if (!cur || m_stat & (M_CMD_FAILURE_EN | M_CMD_ABORT_EN) || dm_rx_st & (DM_I2C_CB_ERR)) { @@ -820,6 +830,10 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i peripheral.set_config = 1; peripheral.multi_msg = false; + trace_geni_i2c_bus_setup(gi2c->se.dev, gi2c->clk_freq_out, + itr->clk_div, itr->t_high_cnt, + itr->t_low_cnt, itr->t_cycle_cnt); + gi2c->num_msgs = num; gi2c->is_tx_multi_desc_xfer = false;