diff options
| author | Alain Volmat <alain.volmat@foss.st.com> | 2021-02-05 09:51:44 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-03-18 11:58:33 +0100 |
| commit | b87752528fe562f01034168b7e4c476b200bc456 (patch) | |
| tree | 6ff503bcbee976cf10e78d3b4deec0ebf981a158 | |
| parent | 9449a558549978c1fe9af340164b17fa7d12af16 (diff) | |
| download | linux-b87752528fe562f01034168b7e4c476b200bc456.tar.bz2 | |
i2c: stm32f7: indicate the address being accessed on errors
To help debugging issues, add the address of the slave being
accessed when getting an error.
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-stm32f7.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index c019548e9ded..162a3b069261 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -1602,7 +1602,8 @@ static irqreturn_t stm32f7_i2c_isr_error(int irq, void *data) /* Bus error */ if (status & STM32F7_I2C_ISR_BERR) { - dev_err(dev, "<%s>: Bus error\n", __func__); + dev_err(dev, "<%s>: Bus error accessing addr 0x%x\n", + __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_BERRCF, base + STM32F7_I2C_ICR); stm32f7_i2c_release_bus(&i2c_dev->adap); f7_msg->result = -EIO; @@ -1610,13 +1611,15 @@ static irqreturn_t stm32f7_i2c_isr_error(int irq, void *data) /* Arbitration loss */ if (status & STM32F7_I2C_ISR_ARLO) { - dev_dbg(dev, "<%s>: Arbitration loss\n", __func__); + dev_dbg(dev, "<%s>: Arbitration loss accessing addr 0x%x\n", + __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_ARLOCF, base + STM32F7_I2C_ICR); f7_msg->result = -EAGAIN; } if (status & STM32F7_I2C_ISR_PECERR) { - dev_err(dev, "<%s>: PEC error in reception\n", __func__); + dev_err(dev, "<%s>: PEC error in reception accessing addr 0x%x\n", + __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_PECCF, base + STM32F7_I2C_ICR); f7_msg->result = -EINVAL; } |