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i2c-i801: Clear only status bits in HST_STS

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Writing back the whole status register could clear unwanted bits.
In particular, it could clear the "INUSE_STS" bit, which is a
'hardware semaphore', that might be useful to use some day.
To prepare for this, let's ban writing back the whole status to register
HST_STS, of which this is the only instance.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Daniel Kurtz 2012-07-24 14:13:57 +02:00 committed by Jean Delvare
parent efa3cb15ad
commit 0ba8b8bfd5
1 changed files with 1 additions and 1 deletions
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drivers/i2c/busses/i2c-i801.c
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@ -300,7 +300,7 @@ static void i801_wait_hwpec(struct i801_priv *priv)
if (timeout > MAX_RETRIES)
dev_dbg(&priv->pci_dev->dev, "PEC Timeout!\n");
outb_p(status, SMBHSTSTS(priv));
outb_p(status & STATUS_FLAGS, SMBHSTSTS(priv));
}
static int i801_block_transaction_by_block(struct i801_priv *priv,