diff mbox series

[5.9,68/75] i2c: qcom: Fix IRQ error misassignement

Message ID 20201210142609.374492033@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Dec. 10, 2020, 2:27 p.m. UTC 
From: Robert Foss <robert.foss@linaro.org>


commit 14718b3e129b058cb716a60c6faf40ef68661c54 upstream.

During cci_isr() errors read from register fields belonging to
i2c master1 are currently assigned to the status field belonging to
i2c master0. This patch corrects this error, and always assigns
master1 errors to the status field of master1.

Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver")
Reported-by: Loic Poulain <loic.poulain@linaro.org>
Suggested-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Signed-off-by: Wolfram Sang <wsa@kernel.org>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 drivers/i2c/busses/i2c-qcom-cci.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -194,9 +194,9 @@  static irqreturn_t cci_isr(int irq, void
 	if (unlikely(val & CCI_IRQ_STATUS_0_I2C_M1_ERROR)) {
 		if (val & CCI_IRQ_STATUS_0_I2C_M1_Q0_NACK_ERR ||
 			val & CCI_IRQ_STATUS_0_I2C_M1_Q1_NACK_ERR)
-			cci->master[0].status = -ENXIO;
+			cci->master[1].status = -ENXIO;
 		else
-			cci->master[0].status = -EIO;
+			cci->master[1].status = -EIO;
 
 		writel(CCI_HALT_REQ_I2C_M1_Q0Q1, cci->base + CCI_HALT_REQ);
 		ret = IRQ_HANDLED;