On Tue, Feb 20, 2018 at 10:31:51AM +0100, Rafael J. Wysocki wrote: > On Tue, Feb 20, 2018 at 12:14 AM, Bjorn Helgaas <[email protected]> wrote: > > From: Bjorn Helgaas <[email protected]> > > > > Add details about how we decide whether we can put a PCI bridge in D3. > > 9d26d3a8f1b0 ("PCI: Put PCIe ports into D3 during suspend") added this > > support to reduce power consumption on Intel Sunrise Point and Broxton > > platforms. > > > > In some cases we don't use D3 for bridges even when it should work, simply > > because it's impractical to test the configuration, or we tripped over some > > possible hardware issue on older platforms. Links to discussion of the > > PCIe port runtime power management patches, which includes mention of these > > issues, are below. > > > > No functional change. > > > > Link: v1: > > https://lkml.kernel.org/r/1456750566-116248-1-git-send-email-mika.westerb...@linux.intel.com > > Link: v2: > > https://lkml.kernel.org/r/1460111790-92836-1-git-send-email-mika.westerb...@linux.intel.com > > Link: v3: > > https://lkml.kernel.org/r/1460628268-16204-1-git-send-email-mika.westerb...@linux.intel.com > > Link: v4: > > https://lkml.kernel.org/r/1461578004-129094-1-git-send-email-mika.westerb...@linux.intel.com > > Link: v5: > > https://lkml.kernel.org/r/1461919919-120102-1-git-send-email-mika.westerb...@linux.intel.com > > Link: v6: > > https://lkml.kernel.org/r/1464855435-32960-1-git-send-email-mika.westerb...@linux.intel.com > > Link: https://lkml.kernel.org/r/[email protected] > > Signed-off-by: Bjorn Helgaas <[email protected]> > > Reviewed-by: Rafael J. Wysocki <[email protected]>
Also Reviewed-by: Mika Westerberg <[email protected]>
