[PATCH 4/8] ARM: OMAP2+: timer: Remove hwmod look-up dependency for DT-boot

Joel Fernandes
2014-04-23T01:28:08Z

hwmod look ups should no longer directly happen for dmtimer users of
DT-boot platforms. We separate out the code for platforms that are
still non-DT. Ultimately this code should be deleted if all platforms
are converted to DT-boot.

We use omap_dmtimer_powerup introduced earlier in the series to abstract
out the hwmod dependency for the same. This will help us move the generic
DT specific code out into drivers/clocksource/ later.

Signed-off-by: Joel Fernandes <joelf@ti.com>
---
arch/arm/mach-omap2/timer.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 9fdff5b..ea91ef9 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -266,10 +266,6 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
if (!np)
return -ENODEV;

- of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
- if (!oh_name)
- return -ENODEV;
-
timer->irq = irq_of_parse_and_map(np, 0);
if (!timer->irq)
return -ENXIO;
@@ -277,19 +273,24 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
timer->io_base = of_iomap(np, 0);

of_node_put(np);
+
+ if (!timer->io_base)
+ return -ENXIO;
+
+ r = omap_dmtimer_powerup(np);
+ if (r)
+ return r;
} else {
if (omap_dm_timer_reserve_systimer(timer->id))
return -ENODEV;

sprintf(name, "timer%d", timer->id);
oh_name = name;
- }

- oh = omap_hwmod_lookup(oh_name);
- if (!oh)
- return -ENODEV;
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh)
+ return -ENODEV;

- if (!of_have_populated_dt()) {
r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL,
&irq);
if (r)
@@ -303,11 +304,14 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,

/* Static mapping, never released */
timer->io_base = ioremap(mem.start, mem.end - mem.start);
+
+ if (!timer->io_base)
+ return -ENXIO;
+
+
+ omap_hwmod_setup_one(oh_name);
+ omap_hwmod_enable(oh);
}
-
- if (!timer->io_base)
- return -ENXIO;
-
/* After the dmtimer is using hwmod these clocks won't be needed */
timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh));
if (IS_ERR(timer->fclk))
@@ -333,10 +337,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,

clk_put(src);

- omap_hwmod_setup_one(oh_name);
- omap_hwmod_enable(oh);
__omap_dm_timer_init_regs(timer);
-
if (posted)
__omap_dm_timer_enable_posted(timer);

--
1.7.9.5