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pmdomain: renesas: rcar-sysc: Add genpd OF provider at postcore_initcall 

Subsequent changes to genpd adds a limitation that registering a genpd OF
providers must be done after its bus registration, which is at
core_initcall.

To adopt to this, let's split the initialization into two steps. The first
part keep registering the PM domains with genpd at early_initcall, as this
is needed to bringup the CPUs for R-Car H1, by calling
rcar_sysc_power_up_cpu(). The second and new part, moves the registration
of the genpd OF provider to a postcore_initcall().

Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-2-ulf.hansson@linaro.org
This commit is contained in:
Ulf Hansson 2025-07-01 13:47:03 +02:00
parent 9f2cbfcda5
commit c5ae5a0c61
1 changed files with 18 additions and 1 deletions
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19
drivers/pmdomain/renesas/rcar-sysc.c
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@ -342,6 +342,7 @@ struct rcar_pm_domains {
}; };
static struct genpd_onecell_data *rcar_sysc_onecell_data; static struct genpd_onecell_data *rcar_sysc_onecell_data;
static struct device_node *rcar_sysc_onecell_np;
static int __init rcar_sysc_pd_init(void) static int __init rcar_sysc_pd_init(void)
{ {
@ -428,7 +429,8 @@ static int __init rcar_sysc_pd_init(void)
} }
} }
error = of_genpd_add_provider_onecell(np, &domains->onecell_data); rcar_sysc_onecell_np = np;
return 0;
out_put: out_put:
of_node_put(np); of_node_put(np);
@ -436,6 +438,21 @@ static int __init rcar_sysc_pd_init(void)
} }
early_initcall(rcar_sysc_pd_init); early_initcall(rcar_sysc_pd_init);
static int __init rcar_sysc_pd_init_provider(void)
{
int error;
if (!rcar_sysc_onecell_np)
return -ENODEV;
error = of_genpd_add_provider_onecell(rcar_sysc_onecell_np,
rcar_sysc_onecell_data);
of_node_put(rcar_sysc_onecell_np);
return error;
}
postcore_initcall(rcar_sysc_pd_init_provider);
#ifdef CONFIG_ARCH_R8A7779 #ifdef CONFIG_ARCH_R8A7779
static int rcar_sysc_power_cpu(unsigned int idx, bool on) static int rcar_sysc_power_cpu(unsigned int idx, bool on)
{ {