diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2016-06-28 16:10:32 +0200 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2016-06-29 14:36:51 +0200 |
| commit | b1e52287a29cf0673e1a60210d55edccc756e44a (patch) | |
| tree | 461157b638d65542db6ce5f95003e159eeddf1db /drivers/soc/renesas | |
| parent | soc: renesas: rcar-sysc: Fix uninitialized error code in rcar_sysc_pd_init() (diff) | |
| download | linux-b1e52287a29cf0673e1a60210d55edccc756e44a.tar.xz linux-b1e52287a29cf0673e1a60210d55edccc756e44a.zip | |
soc: renesas: rcar-sysc: Make rcar_sysc_init() init the PM domains
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>
Diffstat (limited to 'drivers/soc/renesas')
| -rw-r--r-- | drivers/soc/renesas/rcar-sysc.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index 59a8152681a5..68d6856c9d3c 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -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; +} |