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| author | Peter Hurley <peter@hurleysoftware.com> | 2012-11-21 17:30:50 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-11-21 17:31:20 +0100 |
| commit | e294bc91760e11d2f1ebbac1d0a979069edf7adb (patch) | |
| tree | 279a8a95fb56cc8f230ebab079c1e7a07dba23ab /drivers/mfd/lpc_ich.c | |
| parent | d640e757949e2991215838c0edbfd6afc37e5b06 (diff) | |
| download | linux-e294bc91760e11d2f1ebbac1d0a979069edf7adb.tar.gz linux-e294bc91760e11d2f1ebbac1d0a979069edf7adb.tar.bz2 linux-e294bc91760e11d2f1ebbac1d0a979069edf7adb.zip | |
mfd: lpc_ich: Fix resource request for [mem 0x00000000]
The older southbridges supported by the lpc_ich driver do not
provide memory-mapped space of the root complex. The driver
correctly avoids computing the iomem address in this case, yet
submits a zeroed resource request anyway (via mfd_add_devices()).
Remove the iomem resource from the resource array submitted to the
mfd core for the older southbridges.
Acked-by: Aaron Sierra <asierra@xes-inc.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/lpc_ich.c')
| -rw-r--r-- | drivers/mfd/lpc_ich.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index a22544fe5319..afb2f77a9ae8 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -830,7 +830,10 @@ static int __devinit lpc_ich_init_wdt(struct pci_dev *dev, * we have to read RCBA from PCI Config space 0xf0 and use * it as base. GCS = RCBA + ICH6_GCS(0x3410). */ - if (lpc_chipset_info[id->driver_data].iTCO_version == 2) { + if (lpc_chipset_info[id->driver_data].iTCO_version == 1) { + /* Don't register iomem for TCO ver 1 */ + lpc_ich_cells[LPC_WDT].num_resources--; + } else { pci_read_config_dword(dev, RCBABASE, &base_addr_cfg); base_addr = base_addr_cfg & 0xffffc000; if (!(base_addr_cfg & 1)) { |