i2c: qcom: Fix IRQ error misassignement
authorRobert Foss <robert.foss@linaro.org>
Mon, 30 Nov 2020 10:04:45 +0000 (11:04 +0100)
committerWolfram Sang <wsa@kernel.org>
Wed, 2 Dec 2020 16:05:42 +0000 (17:05 +0100)
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>
drivers/i2c/busses/i2c-qcom-cci.c

index f13735b..1c259b5 100644 (file)
@@ -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;