| Message ID | 20200429215402.18125-3-tony@atomide.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Update omaps to use drivers/clocksource timers | expand |
On Wed, 29 Apr 2020 14:53:49 -0700, Tony Lindgren wrote: > The TI dual-mode timer can be used for both clocksource and clockevent > system timers. We need a way to specify which dual-mode timers are > reserved for system timers as there are multiple instances available > that may require a board specific configuration. > > Let's add a generic compatible "ti,dmtimer" that TIMER_OF_DECLARE can > use as suggested by Daniel Lezcano <daniel.lezcano@linaro.org>. > > Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org> > Signed-off-by: Tony Lindgren <tony@atomide.com> > --- > Documentation/devicetree/bindings/timer/ti,timer.txt | 1 + > 1 file changed, 1 insertion(+) > Acked-by: Rob Herring <robh@kernel.org>
* Rob Herring <robh@kernel.org> [200512 14:53]: > On Wed, 29 Apr 2020 14:53:49 -0700, Tony Lindgren wrote: > > The TI dual-mode timer can be used for both clocksource and clockevent > > system timers. We need a way to specify which dual-mode timers are > > reserved for system timers as there are multiple instances available > > that may require a board specific configuration. > > > > Let's add a generic compatible "ti,dmtimer" that TIMER_OF_DECLARE can > > use as suggested by Daniel Lezcano <daniel.lezcano@linaro.org>. > > > > Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org> > > Signed-off-by: Tony Lindgren <tony@atomide.com> > > --- > > Documentation/devicetree/bindings/timer/ti,timer.txt | 1 + > > 1 file changed, 1 insertion(+) > > > > Acked-by: Rob Herring <robh@kernel.org> Looks like this is no longer needed with v3 set in the repost thread: "[PATCHv3 00/14] Update omaps to use drivers/clocksource timers" It now does detection for the preferred system timers based on the various timer features like you suggested. Regards, Tony
diff --git a/Documentation/devicetree/bindings/timer/ti,timer.txt b/Documentation/devicetree/bindings/timer/ti,timer.txt --- a/Documentation/devicetree/bindings/timer/ti,timer.txt +++ b/Documentation/devicetree/bindings/timer/ti,timer.txt @@ -14,6 +14,7 @@ Required properties: ti,omap5430-timer (applicable to OMAP543x devices) ti,am335x-timer (applicable to AM335x devices) ti,am335x-timer-1ms (applicable to AM335x devices) + ti,dmtimer (applicable to system timers) - reg: Contains timer register address range (base address and length).
The TI dual-mode timer can be used for both clocksource and clockevent system timers. We need a way to specify which dual-mode timers are reserved for system timers as there are multiple instances available that may require a board specific configuration. Let's add a generic compatible "ti,dmtimer" that TIMER_OF_DECLARE can use as suggested by Daniel Lezcano <daniel.lezcano@linaro.org>. Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Tony Lindgren <tony@atomide.com> --- Documentation/devicetree/bindings/timer/ti,timer.txt | 1 + 1 file changed, 1 insertion(+)