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Commit 1e037794 authored by Nishanth Menon's avatar Nishanth Menon
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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: default avatarNishanth Menon <nm@ti.com>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
parent 2aba071c

arch/arm/mach-omap2/prm3xxx.c

+18 −0
Original line number Diff line number Diff line
@@ -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)