On Fri, May 22, 2020 at 05:44:55PM +0200, Daniel Lezcano wrote: > On 22/05/2020 17:41, Serge Semin wrote: > > On Fri, May 22, 2020 at 05:28:42PM +0200, Daniel Lezcano wrote: > >> On 21/05/2020 22:48, Serge Semin wrote: > >>> As for all Baikal-T1 SoC related patchsets, which need this, we replaced > >>> the DW APB Timer legacy plain text-based dt-binding file with DT schema. > >>> Similarly the MIPS GIC bindings file is also converted to DT schema seeing > >>> it also defines the MIPS GIC Timer binding. > >>> > >>> Aside from MIPS-specific r4k timer Baikal-T1 chip also provides a > >>> functionality of two another timers: embedded into the MIPS GIC timer and > >>> three external DW timers available over APB bus. But we can't use them > >>> before the corresponding drivers are properly fixed. First of all DW APB > >>> Timer shouldn't be bound to a single CPU, since as being accessible over > >>> APB they are external with respect to all possible CPUs. Secondly there > >>> might be more than just two DW APB Timers in the system (Baikal-T1 has > >>> three of them), so permit the driver to use one of them as a clocksource > >>> and the rest - for clockevents. Thirdly it's possible to use MIPS GIC > >>> timer as a clocksource so register it in the corresponding subsystem > >>> (the patch has been found in the Paul Burton MIPS repo so I left the > >>> original Signed-off-by attribute). Finally in the same way as r4k timer > >>> the MIPS GIC timer should be used with care when CPUFREQ config is enabled > >>> since in case of CM2 the timer counting depends on the CPU reference clock > >>> frequency while the clocksource subsystem currently doesn't support the > >>> timers with non-stable clock. > >>> > >>> This patchset is rebased and tested on the mainline Linux kernel 5.7-rc4: > >>> base-commit: 0e698dfa2822 ("Linux 5.7-rc4") > >>> tag: v5.7-rc4 > >> > >> Applied patch 1,2,4,5,6,7,8 > >> > >> Thanks! > > > > Great! Thanks. Am I right to expect the series in: > > git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git > > at the branch timers/core? > > The series first goes to: > > https://git.linaro.org/people/daniel.lezcano/linux.git/log/?h=timers/drivers/next > > , then I send the PR to Thomas, who send in turn a PR at the merge > windows to Linus for the entire tip tree.
Ok. Thanks for clarification. -Sergey > > > -- > <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs > > Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | > <http://twitter.com/#!/linaroorg> Twitter | > <http://www.linaro.org/linaro-blog/> Blog