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i2c: stm32f7: indicate the address being accessed on errors

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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>
This commit is contained in:
Alain Volmat 2021-02-05 09:51:44 +01:00 committed by Wolfram Sang
parent 9449a55854
commit b87752528f
1 changed files with 6 additions and 3 deletions
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9
drivers/i2c/busses/i2c-stm32f7.c
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@ -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;
}