linux-kernel - [PATCH] PCI: Unhide the SMBus on the Compaq Evo D510

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Message-ID: <20080417164733.3ff83371@hyperion.delvare>
Date:	Thu, 17 Apr 2008 16:47:33 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz
Cc:	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH] PCI: Unhide the SMBus on the Compaq Evo D510

One more machine with a hidden Intel SMBus. Unhiding it reveals a SMSC
EMC6D100 hardware monitoring chip. I have checked that this machine
has no ACPI magic touching the SMBus nor the hardware monitoring chip,
so this should be safe.

Signed-off-by: Jean Delvare <khali@...ux-fr.org>
---
 drivers/pci/quirks.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- linux-2.6.25.orig/drivers/pci/quirks.c	2008-04-17 16:39:59.000000000 +0200
+++ linux-2.6.25/drivers/pci/quirks.c	2008-04-17 16:40:29.000000000 +0200
@@ -1054,6 +1054,12 @@ static void __init asus_hides_smbus_host
 				 * its on-board VGA controller */
 				asus_hides_smbus = 1;
 			}
+		else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_IG)
+			switch(dev->subsystem_device) {
+			case 0x00b8: /* Compaq Evo D510 CMT */
+			case 0x00b9: /* Compaq Evo D510 SFF */
+				asus_hides_smbus = 1;
+			}
 	}
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82845_HB,	asus_hides_smbus_hostbridge);
@@ -1068,6 +1074,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82810_IG3,	asus_hides_smbus_hostbridge);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82845G_IG,	asus_hides_smbus_hostbridge);
 
 static void asus_hides_smbus_lpc(struct pci_dev *dev)
 {


-- 
Jean Delvare
--
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