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From: Alain Volmat <alain.volmat@foss.st.com>
To: <wsa@kernel.org>, <robh+dt@kernel.org>
Cc: <mark.rutland@arm.com>, <pierre-yves.mordret@foss.st.com>,
	<mcoquelin.stm32@gmail.com>, <alexandre.torgue@foss.st.com>,
	<linux-i2c@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <fabrice.gasnier@foss.st.com>,
	<alain.volmat@foss.st.com>
Subject: [PATCH 5/5] i2c: stm32f7: indicate the address being accessed on errors
Date: Fri, 5 Feb 2021 09:51:44 +0100	[thread overview]
Message-ID: <1612515104-838-6-git-send-email-alain.volmat@foss.st.com> (raw)
In-Reply-To: <1612515104-838-1-git-send-email-alain.volmat@foss.st.com>

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>
---
 drivers/i2c/busses/i2c-stm32f7.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index f77cd6512a86..ef642fe1eb2c 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;
 	}
-- 
2.17.1


  parent reply	other threads:[~2021-02-05  8:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-05  8:51 [PATCH 0/5] i2c: stm32: filter binding support & debug info Alain Volmat
2021-02-05  8:51 ` [PATCH 1/5] i2c: stm32f7: fix configuration of the digital filter Alain Volmat
2021-02-05 14:58   ` Pierre Yves MORDRET
2021-02-12 10:36   ` Wolfram Sang
2021-02-05  8:51 ` [PATCH 2/5] i2c: stm32f7: support DT binding i2c-analog-filter Alain Volmat
2021-02-05 14:58   ` Pierre Yves MORDRET
2021-03-18 10:51     ` Wolfram Sang
2021-03-18 10:54   ` Wolfram Sang
2021-02-05  8:51 ` [PATCH 3/5] i2c: stm32f7: add support for DNF i2c-digital-filter binding Alain Volmat
2021-02-05 14:59   ` Pierre Yves MORDRET
2021-03-18 10:54   ` Wolfram Sang
2021-02-05  8:51 ` [PATCH 4/5] ARM: dts: stm32: enable the analog filter for all I2C nodes in stm32mp151 Alain Volmat
2021-02-10  8:39   ` Pierre Yves MORDRET
2021-03-29  9:16     ` Alexandre TORGUE
2021-03-18 10:55   ` Wolfram Sang
2021-03-18 13:16     ` Alexandre TORGUE
2021-02-05  8:51 ` Alain Volmat [this message]
2021-02-05 14:59   ` [PATCH 5/5] i2c: stm32f7: indicate the address being accessed on errors Pierre Yves MORDRET
2021-03-18 10:58   ` Wolfram Sang
2021-02-05 14:57 ` [PATCH 0/5] i2c: stm32: filter binding support & debug info Pierre Yves MORDRET

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