diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 92a6d94029d0..27d1498b9d40 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -4,7 +4,7 @@ * Copyright (C) 2010 Google, Inc. * Author: Colin Cross <ccross@android.com> * - * Copyright (C) 2010-2013 NVIDIA Corporation + * Copyright (C) 2010-2013 NVIDIA Corporation. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -1026,6 +1026,35 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, ret = wait_for_completion_timeout(&i2c_dev->msg_complete, TEGRA_I2C_TIMEOUT); + if (ret == 0) { + dev_err(i2c_dev->dev, "--- register dump for debugging ----\n"); + dev_err(i2c_dev->dev, "I2C_CNFG - 0x%x\n", + i2c_readl(i2c_dev, I2C_CNFG)); + dev_err(i2c_dev->dev, "I2C_PACKET_TRANSFER_STATUS - 0x%x\n", + i2c_readl(i2c_dev, I2C_PACKET_TRANSFER_STATUS)); + dev_err(i2c_dev->dev, "I2C_FIFO_CONTROL - 0x%x\n", + i2c_readl(i2c_dev, I2C_FIFO_CONTROL)); + dev_err(i2c_dev->dev, "I2C_FIFO_STATUS - 0x%x\n", + i2c_readl(i2c_dev, I2C_FIFO_STATUS)); + dev_err(i2c_dev->dev, "I2C_INT_MASK - 0x%x\n", + i2c_readl(i2c_dev, I2C_INT_MASK)); + dev_err(i2c_dev->dev, "I2C_INT_STATUS - 0x%x\n", + i2c_readl(i2c_dev, I2C_INT_STATUS)); + + dev_err(i2c_dev->dev, "msg->len - %d\n", msg->len); + dev_err(i2c_dev->dev, "is_msg_write - %d\n", + !(msg->flags & I2C_M_RD)); + if (next_msg != NULL) { + dev_err(i2c_dev->dev, "next_msg->len - %d\n", + next_msg->len); + dev_err(i2c_dev->dev, "is_next_msg_write - %d\n", + !(next_msg->flags & I2C_M_RD)); + } + + dev_err(i2c_dev->dev, "buf_remaining - %d\n", + i2c_dev->msg_buf_remaining); + } + tegra_i2c_mask_irq(i2c_dev, int_mask); if (i2c_dev->is_dvc) |