On Thu, Jun 30, 2016 at 11:56:23AM +0100, Jon Hunter wrote: > The Tegra XHCI driver currently assumes the XUSB power partitions have > been enabled by the bootloader. This is not for the Tegra210 Smaug board > and so cause the kernel to hang when enabling XHCI support. Although the > XHCI driver itself needs to manage these partitions, for now enable the > partitions if the XHCI driver is enabled. > > In order to do this I have made a fundamental change to the PMC driver > to initialise the power partitions during early init. A benefit of this > is that if CONFIG_PM_GENERIC_DOMAINS is not enabled, then we can simply > turn on the partitions early before any devices are probed. > > This is based upon the PMC fixes series [0]. > > Changes from initial RFC: > - Added patch to add more detailed error messages when initialising > powergates. > > [0] http://marc.info/?l=linux-tegra&m=146711078013182&w=2 > > Jon Hunter (4): > soc/tegra: pmc: Add specific error messages for initialising a > powergate > soc/tegra: pmc: Initialise power partitions early > soc/tegra: pmc: Enable XUSB partitions on boot > arm64: tegra210: Add XUSB powergates > > arch/arm64/boot/dts/nvidia/tegra210.dtsi | 24 +++++++++++++ > drivers/soc/tegra/pmc.c | 60 +++++++++++++++++++++++--------- > 2 files changed, 67 insertions(+), 17 deletions(-) Applied, thanks. Thierry
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