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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-07 15:56:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-07 15:56:04 -0800
commit6dc3eb5c1f96641cda7056aa34393e317076d6cf (patch)
tree9a615b884d7ff5375382b5a3f020f518f618c589 /drivers/i2c
parent8fe900b8c7aa6a307e552ff776e0c04c28dcf9c8 (diff)
parent2c08583c6a6b4c5f5dea4cb0931eca82af7db6fe (diff)
downloadtalos-op-linux-6dc3eb5c1f96641cda7056aa34393e317076d6cf.tar.gz
talos-op-linux-6dc3eb5c1f96641cda7056aa34393e317076d6cf.zip
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (66 commits) mfd: Fix ucb1x00 build failure for collie_defconfig mfd: Fix lpc_sch related depends/selects, fix build error gpio: Fix sch_gpio warning gpio: add Intel SCH GPIO controller driver i2c: convert i2c-isch to platform_device mfd: Use completion interrupt for WM831x AUXADC mfd: Use completion interrupt for WM835x AUXADC mfd: Introduce remove_script function for twl4030 mfd/mmc: SDHI Kconfig update mfd: sh_mobile_sdhi MMC_CAP_MMC_HIGHSPEED support gpiolib: Force wm831x GPIOs into GPIO mode when requested mfd: Add WM831x revision B support gpiolib: Correct debugfs display of WM831x GPIO inversion gpiolib: Actually set output state in wm831x_gpio_direction_output() tmio_mmc: Balance cell enable()/disable() calls tmio_mmc: Remove const from platform data V3 tmio_mmc: Use 100ms mmc_detect_change() delay tmio_mmc: Add MMC_CAP_MMC_HIGHSPEED support V2 tmio_mmc: Keep card-detect interrupts enabled mfd: Add twl6030 base addr for ID0, ID1, ID2 ...
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/Kconfig2
-rw-r--r--drivers/i2c/busses/i2c-isch.c68
2 files changed, 29 insertions, 41 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 4cc3807bd31c..4cd1ff77ceda 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -106,6 +106,8 @@ config I2C_I801
config I2C_ISCH
tristate "Intel SCH SMBus 1.0"
depends on PCI
+ select MFD_CORE
+ select LPC_SCH
help
Say Y here if you want to use SMBus controller on the Intel SCH
based systems.
diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c
index 69c22f79f231..ddc258edb34f 100644
--- a/drivers/i2c/busses/i2c-isch.c
+++ b/drivers/i2c/busses/i2c-isch.c
@@ -27,7 +27,7 @@
*/
#include <linux/module.h>
-#include <linux/pci.h>
+#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/stddef.h>
@@ -46,12 +46,6 @@
#define SMBHSTDAT1 (7 + sch_smba)
#define SMBBLKDAT (0x20 + sch_smba)
-/* count for request_region */
-#define SMBIOSIZE 64
-
-/* PCI Address Constants */
-#define SMBBA_SCH 0x40
-
/* Other settings */
#define MAX_TIMEOUT 500
@@ -63,7 +57,6 @@
#define SCH_BLOCK_DATA 0x05
static unsigned short sch_smba;
-static struct pci_driver sch_driver;
static struct i2c_adapter sch_adapter;
/*
@@ -256,37 +249,23 @@ static struct i2c_adapter sch_adapter = {
.algo = &smbus_algorithm,
};
-static const struct pci_device_id sch_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, sch_ids);
-
-static int __devinit sch_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
+static int __devinit smbus_sch_probe(struct platform_device *dev)
{
+ struct resource *res;
int retval;
- unsigned int smba;
- pci_read_config_dword(dev, SMBBA_SCH, &smba);
- if (!(smba & (1 << 31))) {
- dev_err(&dev->dev, "SMBus I/O space disabled!\n");
- return -ENODEV;
- }
+ res = platform_get_resource(dev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EBUSY;
- sch_smba = (unsigned short)smba;
- if (sch_smba == 0) {
- dev_err(&dev->dev, "SMBus base address uninitialized!\n");
- return -ENODEV;
- }
- if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name))
- return -ENODEV;
- if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) {
+ if (!request_region(res->start, resource_size(res), dev->name)) {
dev_err(&dev->dev, "SMBus region 0x%x already in use!\n",
sch_smba);
return -EBUSY;
}
+
+ sch_smba = res->start;
+
dev_dbg(&dev->dev, "SMBA = 0x%X\n", sch_smba);
/* set up the sysfs linkage to our parent device */
@@ -298,37 +277,43 @@ static int __devinit sch_probe(struct pci_dev *dev,
retval = i2c_add_adapter(&sch_adapter);
if (retval) {
dev_err(&dev->dev, "Couldn't register adapter!\n");
- release_region(sch_smba, SMBIOSIZE);
+ release_region(res->start, resource_size(res));
sch_smba = 0;
}
return retval;
}
-static void __devexit sch_remove(struct pci_dev *dev)
+static int __devexit smbus_sch_remove(struct platform_device *pdev)
{
+ struct resource *res;
if (sch_smba) {
i2c_del_adapter(&sch_adapter);
- release_region(sch_smba, SMBIOSIZE);
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ release_region(res->start, resource_size(res));
sch_smba = 0;
}
+
+ return 0;
}
-static struct pci_driver sch_driver = {
- .name = "isch_smbus",
- .id_table = sch_ids,
- .probe = sch_probe,
- .remove = __devexit_p(sch_remove),
+static struct platform_driver smbus_sch_driver = {
+ .driver = {
+ .name = "isch_smbus",
+ .owner = THIS_MODULE,
+ },
+ .probe = smbus_sch_probe,
+ .remove = __devexit_p(smbus_sch_remove),
};
static int __init i2c_sch_init(void)
{
- return pci_register_driver(&sch_driver);
+ return platform_driver_register(&smbus_sch_driver);
}
static void __exit i2c_sch_exit(void)
{
- pci_unregister_driver(&sch_driver);
+ platform_driver_unregister(&smbus_sch_driver);
}
MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>");
@@ -337,3 +322,4 @@ MODULE_LICENSE("GPL");
module_init(i2c_sch_init);
module_exit(i2c_sch_exit);
+MODULE_ALIAS("platform:isch_smbus");
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