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ARM: OMAP: Add function to request timer by node

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Add a function so that OMAP dmtimers can be requested by device-tree
node. This allows for devices, such as the internal DSP, or drivers,
such as PWM, to reference a specific dmtimer node via the device-tree.

Given that there are several APIs available for requesting dmtimers
(by ID, by capability or by node) consolidate the code for all these
functions into a single helper function that can be used by these
request functions.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
This commit is contained in:
Jon Hunter
2013-03-19 12:38:17 -05:00
committed by Benoit Cousson
parent 385c4c7b7c
commit 8fc7fcb593
2 changed files with 96 additions and 76 deletions
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1
arch/arm/plat-omap/include/plat/dmtimer.h
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@@ -128,6 +128,7 @@ int omap_dm_timer_reserve_systimer(int id);
struct omap_dm_timer *omap_dm_timer_request(void);
struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
struct omap_dm_timer *omap_dm_timer_request_by_cap(u32 cap);
struct omap_dm_timer *omap_dm_timer_request_by_node(struct device_node *np);
int omap_dm_timer_free(struct omap_dm_timer *timer);
void omap_dm_timer_enable(struct omap_dm_timer *timer);
void omap_dm_timer_disable(struct omap_dm_timer *timer);