Commit c5ae5a0c authored by Ulf Hansson's avatar Ulf Hansson
Browse files

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: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250701114733.636510-2-ulf.hansson@linaro.org
parent 9f2cbfcd

drivers/pmdomain/renesas/rcar-sysc.c

+18 −1
Original line number Diff line number Diff line
@@ -342,6 +342,7 @@ struct rcar_pm_domains { 
};



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)

{
@@ -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:

	of_node_put(np);
@@ -436,6 +438,21 @@ static int __init rcar_sysc_pd_init(void) 
}

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

static int rcar_sysc_power_cpu(unsigned int idx, bool on)

{