baytrail: allow function disable on TXE
Previously it was not known how to put the TXE pci device into D3Hot. It's been disseminated that this is not a requirement for disabling the TXE pci device in the function disable register. Therefore, allow this by returning 0 from place_device_in_d3hot(). BUG=chrome-os-partner:22871 BRANCH=None TEST=Temporarily set TXE to be disabled. Noted FUNC_DIS was being set accordingly. Change-Id: Ibf537bf8ba718859591dc89bdf41e57c1ea9d836 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/175490 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/4925 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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@ -322,7 +322,8 @@ static int place_device_in_d3hot(device_t dev)
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offset = 0x50;
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break;
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case PCI_DEVFN(TXE_DEV, TXE_FUNC):
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break;
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/* TXE cannot be placed in D3Hot. */
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return 0;
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case PCI_DEVFN(PCIE_PORT1_DEV, PCIE_PORT1_FUNC):
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offset = 0xa0;
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break;
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