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authorShinya Kuribayashi <shinya.kuribayashi@necel.com>2009-11-16 20:40:14 +0900
committerBen Dooks <ben-linux@fluff.org>2009-12-09 00:19:13 +0000
commit6d1ea0f6afde6887d6dea2ace1714a23d9b5820d (patch)
tree3acb20e31d87b19cf3c9ffb050ca12b7500ff274 /drivers/i2c
parenta0e06ea64cd2b4b7eee9c196bf623d6c9e44df7c (diff)
downloadblackbird-op-linux-6d1ea0f6afde6887d6dea2ace1714a23d9b5820d.tar.gz
blackbird-op-linux-6d1ea0f6afde6887d6dea2ace1714a23d9b5820d.zip
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.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-designware.c b/drivers/i2c/busses/i2c-designware.c
index 4534d4554ff4..9e18ef97f156 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
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