On Tue, Jan 12, 2021 at 03:27:22PM +0300, Dmitry Osipenko wrote: > The PLLU (USB) consists of the PLL configuration itself and configuration > of the PLLU outputs. The PLLU programming is inconsistent on T30 vs T114, > where T114 immediately bails out if PLLU is enabled and T30 re-enables > a potentially already enabled PLL (left after bootloader) and then fully > reprograms it, which could be unsafe to do. The correct way should be to > skip enabling of the PLL if it's already enabled and then apply > configuration to the outputs. This patch doesn't fix any known problems, > it's a minor improvement. > > Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> > --- > drivers/clk/tegra/clk-pll.c | 9 ++++----- > 1 file changed, 4 insertions(+), 5 deletions(-) Acked-by: Thierry Reding <treding@xxxxxxxxxx>
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