[PATCH v2 02/10] i2c: i801: make FEATURE_HOST_NOTIFY dependent on FEATURE_IRQ

[Heiner Kallweit <hkallweit1@gmail.com>]

Host notification uses an interrupt, therefore it makes sense only if
interrupts are enabled. Make this dependency explicit by removing
FEATURE_HOST_NOTIFY if FEATURE_IRQ isn't set.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
v2:
- add a commit message part as comment to the code
- make changed code cleaner
---
 drivers/i2c/busses/i2c-i801.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index da773c563..45c2ebe40 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1705,11 +1705,6 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		outb_p(inb_p(SMBAUXCTL(priv)) &
 		       ~(SMBAUXCTL_CRC | SMBAUXCTL_E32B), SMBAUXCTL(priv));
 
-	/* Remember original Interrupt and Host Notify settings */
-	priv->original_hstcnt = inb_p(SMBHSTCNT(priv)) & ~SMBHSTCNT_KILL;
-	if (priv->features & FEATURE_HOST_NOTIFY)
-		priv->original_slvcmd = inb_p(SMBSLVCMD(priv));
-
 	/* Default timeout in interrupt mode: 200 ms */
 	priv->adapter.timeout = HZ / 5;
 
@@ -1739,6 +1734,15 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	dev_info(&dev->dev, "SMBus using %s\n",
 		 priv->features & FEATURE_IRQ ? "PCI interrupt" : "polling");
 
+	/* Host notification uses an interrupt */
+	if (!(priv->features & FEATURE_IRQ))
+		priv->features &= ~FEATURE_HOST_NOTIFY;
+
+	/* Remember original Interrupt and Host Notify settings */
+	priv->original_hstcnt = inb_p(SMBHSTCNT(priv)) & ~SMBHSTCNT_KILL;
+	if (priv->features & FEATURE_HOST_NOTIFY)
+		priv->original_slvcmd = inb_p(SMBSLVCMD(priv));
+
 	i801_add_tco(priv);
 
 	snprintf(priv->adapter.name, sizeof(priv->adapter.name),
-- 
2.39.0