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| author | Shinya Kuribayashi <shinya.kuribayashi@necel.com> | 2009-11-16 20:40:14 +0900 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2009-12-09 00:19:13 +0000 |
| commit | 6d1ea0f6afde6887d6dea2ace1714a23d9b5820d (patch) | |
| tree | 3acb20e31d87b19cf3c9ffb050ca12b7500ff274 /drivers/i2c | |
| parent | a0e06ea64cd2b4b7eee9c196bf623d6c9e44df7c (diff) | |
| download | kernel_samsung_smdk4412-6d1ea0f6afde6887d6dea2ace1714a23d9b5820d.zip kernel_samsung_smdk4412-6d1ea0f6afde6887d6dea2ace1714a23d9b5820d.tar.gz kernel_samsung_smdk4412-6d1ea0f6afde6887d6dea2ace1714a23d9b5820d.tar.bz2 | |
i2c-designware: i2c_dw_handle_tx_abort: Use dev_dbg() for NOACK cases
In the case of no-ACKs, we don't want to see dev_err() messages in the
console, because some utilities like i2c-tools are capable of printing
decorated console output. This patch will ease such situations.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-designware.c b/drivers/i2c/busses/i2c-designware.c index 4534d45..9e18ef9 100644 --- a/drivers/i2c/busses/i2c-designware.c +++ b/drivers/i2c/busses/i2c-designware.c @@ -496,13 +496,18 @@ static int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev) unsigned long abort_source = dev->abort_source; int i; + if (abort_source & DW_IC_TX_ABRT_NOACK) { + for_each_bit(i, &abort_source, ARRAY_SIZE(abort_sources)) + dev_dbg(dev->dev, + "%s: %s\n", __func__, abort_sources[i]); + return -EREMOTEIO; + } + for_each_bit(i, &abort_source, ARRAY_SIZE(abort_sources)) dev_err(dev->dev, "%s: %s\n", __func__, abort_sources[i]); if (abort_source & DW_IC_TX_ARB_LOST) return -EAGAIN; - else if (abort_source & DW_IC_TX_ABRT_NOACK) - return -EREMOTEIO; else if (abort_source & DW_IC_TX_ABRT_GCALL_READ) return -EINVAL; /* wrong msgs[] data */ else |