[PATCH v2] i2c: qcom: Fix IRQ error misassignement

From: Robert Foss
Date: Fri Nov 27 2020 - 08:39:58 EST


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@xxxxxxxxxx>
Suggested-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-qcom-cci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
index f13735beca58..1c259b5188de 100644
--- 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 *dev)
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;
--
2.27.0