On Mon, Jan 28, 2019 at 04:09:08PM +0100, Thierry Reding wrote: ... > > Up to here this is a duplicate of timer-tegra20.c. And a lot of > tegra210_timer_init() is the same as tegra20_timer_init() as well. Can't > we unify the two drivers instead? > > The power cycle restrictions of the architected timer, do they not apply > to chips earlier than Tegra210 either? So don't we need all of these > additional features on the timer-tegra20.c driver as well? If so that No. Chips prior to Tegra114 do not have an arch timer and the arch timer does work correctly on Cortex-A15 so Tegra114 and Tegra124 can use it. It's broken on Cortex-A57 though, so we can't use it as a wakeup source on Tegra210. Peter.
