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soc: renesas: rcar-sysc: Make rcar_sysc_init() init the PM domains

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Let rcar_sysc_init() trigger initialization of the SYSC PM domains from
DT if called before the early_initcall.
On failure, it falls back to mapping the passed register block, as
before.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Geert Uytterhoeven 2016-06-28 16:10:32 +02:00 committed by Simon Horman
parent 1023578ec3
commit b1e52287a2
1 changed files with 11 additions and 9 deletions
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20
drivers/soc/renesas/rcar-sysc.c
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@ -164,15 +164,6 @@ static bool rcar_sysc_power_is_off(const struct rcar_sysc_ch *sysc_ch)
return false;
}
void __iomem *rcar_sysc_init(phys_addr_t base)
{
rcar_sysc_base = ioremap_nocache(base, PAGE_SIZE);
if (!rcar_sysc_base)
panic("unable to ioremap R-Car SYSC hardware block\n");
return rcar_sysc_base;
}
struct rcar_sysc_pd {
struct generic_pm_domain genpd;
struct rcar_sysc_ch ch;
@ -328,6 +319,9 @@ static int __init rcar_sysc_pd_init(void)
unsigned int i;
int error;
if (rcar_sysc_base)
return 0;
np = of_find_matching_node_and_match(NULL, rcar_sysc_matches, &match);
if (!np)
return -ENODEV;
@ -405,3 +399,11 @@ out_put:
return error;
}
early_initcall(rcar_sysc_pd_init);
void __iomem * __init rcar_sysc_init(phys_addr_t base)
{
if (rcar_sysc_pd_init())
rcar_sysc_base = ioremap_nocache(base, PAGE_SIZE);
return rcar_sysc_base;
}