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ARM: OMAP3+: PRM: register interrupt information from DT 

Allow the PRM interrupt information to be picked up from device tree.
OMAP3 may use legacy boot and needs to be compatible with old dtbs
(without interrupt populated), for these, we use the value which is
pre-populated.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
hifive-unleashed-5.1
Nishanth Menon 2014-08-12 07:05:19 -05:00
parent 2aba071c50
commit 1e037794f7
1 changed files with 18 additions and 0 deletions
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18
arch/arm/mach-omap2/prm3xxx.c
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@ -17,6 +17,7 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/of_irq.h>
#include "soc.h"
#include "common.h"
@ -649,6 +650,11 @@ int __init omap3xxx_prm_init(void)
return prm_register(&omap3xxx_prm_ll_data);
}
static struct of_device_id omap3_prm_dt_match_table[] = {
{ .compatible = "ti,omap3-prm" },
{ }
};
static int omap3xxx_prm_late_init(void)
{
int ret;
@ -656,6 +662,18 @@ static int omap3xxx_prm_late_init(void)
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
if (of_have_populated_dt()) {
struct device_node *np;
int irq_num;
np = of_find_matching_node(NULL, omap3_prm_dt_match_table);
if (np) {
irq_num = of_irq_get(np, 0);
if (irq_num >= 0)
omap3_prcm_irq_setup.irq = irq_num;
}
}
omap3xxx_prm_enable_io_wakeup();
ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
if (!ret)