diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-tegra.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 25cd44fdf2ee..6c820ebf1530 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -629,7 +629,7 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) status = i2c_readl(i2c_dev, I2C_INT_STATUS); if (status == 0) { - dev_warn(i2c_dev->dev, "unknown interrupt Add 0x%02x\n", + dev_dbg(i2c_dev->dev, "unknown interrupt Add 0x%02x\n", i2c_dev->msg_add); i2c_dev->msg_err |= I2C_ERR_UNKNOWN_INTERRUPT; @@ -644,7 +644,7 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) dev_dbg(i2c_dev->dev, "I2c error status 0x%08x\n", status); if (status & I2C_INT_NO_ACK) { i2c_dev->msg_err |= I2C_ERR_NO_ACK; - dev_warn(i2c_dev->dev, "no acknowledge from address" + dev_dbg(i2c_dev->dev, "no acknowledge from address" " 0x%x\n", i2c_dev->msg_add); dev_dbg(i2c_dev->dev, "Packet status 0x%08x\n", i2c_readl(i2c_dev, I2C_PACKET_TRANSFER_STATUS)); @@ -652,7 +652,7 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) if (status & I2C_INT_ARBITRATION_LOST) { i2c_dev->msg_err |= I2C_ERR_ARBITRATION_LOST; - dev_warn(i2c_dev->dev, "arbitration lost during " + dev_dbg(i2c_dev->dev, "arbitration lost during " " communicate to add 0x%x\n", i2c_dev->msg_add); dev_dbg(i2c_dev->dev, "Packet status 0x%08x\n", i2c_readl(i2c_dev, I2C_PACKET_TRANSFER_STATUS)); @@ -660,7 +660,7 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) if (status & I2C_INT_TX_FIFO_OVERFLOW) { i2c_dev->msg_err |= I2C_INT_TX_FIFO_OVERFLOW; - dev_warn(i2c_dev->dev, "Tx fifo overflow during " + dev_dbg(i2c_dev->dev, "Tx fifo overflow during " " communicate to add 0x%x\n", i2c_dev->msg_add); dev_dbg(i2c_dev->dev, "Packet status 0x%08x\n", i2c_readl(i2c_dev, I2C_PACKET_TRANSFER_STATUS)); @@ -676,7 +676,7 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) && (status == I2C_INT_TX_FIFO_DATA_REQ) && i2c_dev->msg_read && i2c_dev->msg_buf_remaining)) { - dev_warn(i2c_dev->dev, "unexpected status\n"); + dev_dbg(i2c_dev->dev, "unexpected status\n"); i2c_dev->msg_err |= I2C_ERR_UNEXPECTED_STATUS; if (!i2c_dev->irq_disabled) { @@ -937,6 +937,23 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, if (likely(i2c_dev->msg_err == I2C_ERR_NONE)) return 0; + /* Prints errors */ + if (i2c_dev->msg_err & I2C_ERR_UNKNOWN_INTERRUPT) + dev_warn(i2c_dev->dev, "unknown interrupt Add 0x%02x\n", + i2c_dev->msg_add); + if (i2c_dev->msg_err & I2C_ERR_NO_ACK) + dev_warn(i2c_dev->dev, "no acknowledge from address 0x%x\n", + i2c_dev->msg_add); + if (i2c_dev->msg_err & I2C_ERR_ARBITRATION_LOST) + dev_warn(i2c_dev->dev, "arb lost in communicate to add 0x%x\n", + i2c_dev->msg_add); + if (i2c_dev->msg_err & I2C_INT_TX_FIFO_OVERFLOW) + dev_warn(i2c_dev->dev, "Tx fifo overflow to add 0x%x\n", + i2c_dev->msg_add); + if (i2c_dev->msg_err & I2C_ERR_UNEXPECTED_STATUS) + dev_warn(i2c_dev->dev, "unexpected status to add 0x%x\n", + i2c_dev->msg_add); + if ((i2c_dev->chipdata->timeout_irq_occurs_before_bus_inactive) && (i2c_dev->msg_err == I2C_ERR_NO_ACK)) { /* |