From 54fb4a05af0a4b814e6716cfdf3fa97fc6be7a32 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 14 Jul 2008 22:38:33 +0200 Subject: i2c: Check for ACPI resource conflicts Check for ACPI resource conflicts in i2c bus drivers. I've included all recent SMBus master drivers for PC hardware. I've voluntarily left out: * Drivers that don't run on PCs: they can't conflict with ACPI. * Bit-banged bus device drivers: it's very unlikely that ACPI would deal with such buses. Signed-off-by: Jean Delvare --- drivers/i2c/busses/i2c-sis5595.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/i2c/busses/i2c-sis5595.c') diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c index f76944b384f5..3c8e0e1bd24f 100644 --- a/drivers/i2c/busses/i2c-sis5595.c +++ b/drivers/i2c/busses/i2c-sis5595.c @@ -62,6 +62,7 @@ #include #include #include +#include #include static int blacklist[] = { @@ -174,6 +175,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev) /* NB: We grab just the two SMBus registers here, but this may still * interfere with ACPI :-( */ + retval = acpi_check_region(sis5595_base + SMB_INDEX, 2, + sis5595_driver.name); + if (retval) + return retval; + if (!request_region(sis5595_base + SMB_INDEX, 2, sis5595_driver.name)) { dev_err(&SIS5595_dev->dev, "SMBus registers 0x%04x-0x%04x already in use!\n", -- cgit v1.2.3