linux-kernel - [PATCH 3/3] lpc_sch: Add Intel Centerton Multifunction Device support

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Message-Id: <1334696962-3642-1-git-send-email-seth.heasley@intel.com>
Date:	Tue, 17 Apr 2012 14:09:22 -0700
From:	Seth Heasley <seth.heasley@...el.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org,
	James Ralston <james.d.ralston@...el.com>,
	Seth Heasley <seth.heasley@...el.com>
Subject: [PATCH 3/3] lpc_sch: Add Intel Centerton Multifunction Device support

This patch adds the Intel Centerton processor DeviceID for the Integrated Legacy Block.  The ILB provides GPIO, SMBus, and Watchdog functionality. The ILB DeviceID is defined in include/linux/pci_ids.h.

Signed-off-by: Seth Heasley <seth.heasley@...el.com>
---
 drivers/mfd/lpc_sch.c |   13 ++++++++++---
 1 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c
index abc4213..84b7714 100644
--- a/drivers/mfd/lpc_sch.c
+++ b/drivers/mfd/lpc_sch.c
@@ -36,6 +36,7 @@
 
 #define GPIOBASE	0x44
 #define GPIO_IO_SIZE	64
+#define GPIO_IO_SIZE_CENTERTON	128
 
 #define WDTBASE		0x84
 #define WDT_IO_SIZE	64
@@ -68,7 +69,7 @@ static struct resource wdt_sch_resource = {
 
 static struct mfd_cell tunnelcreek_cells[] = {
 	{
-		.name = "tunnelcreek_wdt",
+		.name = "ie6xx_wdt",
 		.num_resources = 1,
 		.resources = &wdt_sch_resource,
 	},
@@ -77,6 +78,7 @@ static struct mfd_cell tunnelcreek_cells[] = {
 static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CENTERTON_ILB) },
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, lpc_sch_ids);
@@ -115,7 +117,11 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev,
 	}
 
 	gpio_sch_resource.start = base_addr;
-	gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
+
+	if (id->device == PCI_DEVICE_ID_INTEL_CENTERTON_ILB)
+		gpio_sch_resource.end = base_addr + GPIO_IO_SIZE_CENTERTON - 1;
+	else
+		gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
 
 	for (i=0; i < ARRAY_SIZE(lpc_sch_cells); i++)
 		lpc_sch_cells[i].id = id->device;
@@ -125,7 +131,8 @@ static int __devinit lpc_sch_probe(struct pci_dev *dev,
 	if (ret)
 		goto out_dev;
 
-	if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC) {
+	if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC
+	 || id->device == PCI_DEVICE_ID_INTEL_CENTERTON_ILB) {
 		pci_read_config_dword(dev, WDTBASE, &base_addr_cfg);
 		if (!(base_addr_cfg & (1 << 31))) {
 			dev_err(&dev->dev, "Decode of the WDT I/O range disabled\n");
-- 
1.7.4.4

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