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Commit e294bc91 authored by Peter Hurley's avatar Peter Hurley Committed by Samuel Ortiz
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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: default avatarAaron Sierra <asierra@xes-inc.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: default avatarPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent d640e757

drivers/mfd/lpc_ich.c

+4 −1
Original line number Diff line number Diff line
@@ -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)) {