On Mon, Jul 27, 2020 at 10:21:42AM -0600, Rob Herring wrote: > On Tue, Jun 23, 2020 at 8:55 AM Thierry Reding <thierry.reding@xxxxxxxxx> wrote: > > > > From: Thierry Reding <treding@xxxxxxxxxx> > > > > The Tegra PCI controller driver doesn't need to control the PLL power > > supplies directly, but rather uses the pads provided by the XUSB pad > > controller, which in turn is responsible for supplying power to the > > PLLs. > > > > Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> > > --- > > drivers/pci/controller/pci-tegra.c | 10 ++-------- > > 1 file changed, 2 insertions(+), 8 deletions(-) > > What's going to happen here with a new dtb and an old kernel? Is it > going to error out due to missing supplies? It's not going to error out but fallback to the "dummy" regulator, so this should be fine from a forwards-compatibility point of view. Though I didn't think we technically cared about that direction very much. Thierry
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