This patch uses the previously introduced macro called
request_declared_muxed_region() to synchronize access to
the I/O port pair 0xcd6 / 0xcd7 on SB800.
These I/O ports are also used by i2c-piix4 and sp5100_tco,
the next two patches port these drivers to use the new macro.
Signed-off-by: Zoltán Böszörményi <zboszor@xxxxx>
---
drivers/usb/host/pci-quirks.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index a9a1e4c..703eb65 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -314,11 +314,14 @@ static void usb_amd_quirk_pll(int disable)
if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB800 ||
amd_chipset.sb_type.gen == AMD_CHIPSET_HUDSON2 ||
amd_chipset.sb_type.gen == AMD_CHIPSET_BOLTON) {
+ struct resource res = DEFINE_RES_IO_NAMED(0xcd6, 2, "USB host SB800/HUDSON2/BOLTON");
+ request_declared_muxed_region(&res);
outb_p(AB_REG_BAR_LOW, 0xcd6);
addr_low = inb_p(0xcd7);
outb_p(AB_REG_BAR_HIGH, 0xcd6);
addr_high = inb_p(0xcd7);
addr = addr_high << 8 | addr_low;
+ release_region(0xcd6, 2);
outl_p(0x30, AB_INDX(addr));
outl_p(0x40, AB_DATA(addr));
--
2.9.4
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