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| author | Daniel Kurtz <djkurtz@chromium.org> | 2012-07-24 16:13:57 +0400 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2012-07-24 16:13:57 +0400 |
| commit | 0ba8b8bfd56533f0b9af7513c6ebbc10c79ae052 (patch) | |
| tree | 2ebbc15a16f19a8e3c3d0f883bd66e97891fa786 | |
| parent | efa3cb15ad8ba40bd08b05df87ef0ca6680ef762 (diff) | |
| download | linux-0ba8b8bfd56533f0b9af7513c6ebbc10c79ae052.tar.xz | |
i2c-i801: Clear only status bits in HST_STS
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>
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 51e11eb64abc..05f394938b82 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -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, |