[PATCH] i2c: i801: Fix incorrect and needless software PEC disabling

[Jarkko Nikula <jarkko.nikula@linux.intel.com>]

Commit a6b8bb6a813a ("i2c: i801: Fix handling SMBHSTCNT_PEC_EN")
attempts to disable software PEC by clearing the SMBHSTCNT_PEC_EN (bit 7)
in the SMBus Host Control register (I/O SMBHSTCNT) but incorrectly
clears it in the PCI Host Configuration register (PCI SMBHSTCFG).

This clearing is actually needless since after above commit the
SMBHSTCNT_PEC_EN is never set and the register is initialized with known
values.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
---
I didn't add Fixes tag and Cc stable@vger.kernel.org since I don't see
this causes any real issues. A few platforms I checked the PCI Host
Configuration register bit 7 was reserved 0.
---
 drivers/i2c/busses/i2c-i801.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 115660dce722..b6048a571543 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1657,7 +1657,6 @@ static void i801_setup_hstcfg(struct i801_priv *priv)
 	unsigned char hstcfg = priv->original_hstcfg;
 
 	hstcfg &= ~SMBHSTCFG_I2C_EN;	/* SMBus timing */
-	hstcfg &= ~SMBHSTCNT_PEC_EN;	/* Disable software PEC */
 	hstcfg |= SMBHSTCFG_HST_EN;
 	pci_write_config_byte(priv->pci_dev, SMBHSTCFG, hstcfg);
 }
-- 
2.33.0