[Linux-stm32] [PATCH] i2c: i2c-stm32f7: improve nack debug message

Alain Volmat alain.volmat at st.com
Thu Mar 19 18:21:55 UTC 2020


From: Fabrice Gasnier <fabrice.gasnier at st.com>

Add information on slave addr in the nack debug message.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier at st.com>
Signed-off-by: Alain Volmat <alain.volmat at st.com>
---
 drivers/i2c/busses/i2c-stm32f7.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 378956ac6d1d..78d40a4cc282 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -1431,7 +1431,8 @@ static irqreturn_t stm32f7_i2c_isr_event(int irq, void *data)
 
 	/* NACK received */
 	if (status & STM32F7_I2C_ISR_NACKF) {
-		dev_dbg(i2c_dev->dev, "<%s>: Receive NACK\n", __func__);
+		dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n",
+			__func__, f7_msg->addr);
 		writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR);
 		f7_msg->result = -ENXIO;
 	}
-- 
2.7.4




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