[PATCH 1/8] ARM: OMAP2+: timer: Add a powerup function

Joel Fernandes
2014-04-23T01:28:07Z

In an effort to isolate the time power initialization for future purposes, add
a function to do the same. This primarily involves a hwmod lookup, setup and
enable.

Signed-off-by: Joel Fernandes <joelf@ti.com>
---
arch/arm/mach-omap2/timer.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index dfb19df..ec427e6 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -210,6 +210,31 @@ static void __init omap_dmtimer_init(void)
}
}

+int __init omap_dmtimer_powerup(struct device_node *np)
+{
+ struct omap_hwmod *oh;
+ const char *oh_name = NULL;
+ int ret;
+
+ of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
+ if (!oh_name)
+ return -ENODEV;
+
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh)
+ return -ENODEV;
+
+ ret = omap_hwmod_setup_one(oh_name);
+ if (ret)
+ return ret;
+
+ ret = omap_hwmod_enable(oh);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
/**
* omap_dm_timer_get_errata - get errata flags for a timer
*
--
1.7.9.5