diff options
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/renesas/rcar-sysc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index 4e760d63f2ab..0d49a25de740 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -9,6 +9,7 @@ * for more details. */ +#include <linux/clk/renesas.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/mm.h> @@ -217,6 +218,8 @@ static int rcar_sysc_pd_power_on(struct generic_pm_domain *genpd) return rcar_sysc_power_up(&pd->ch); } +static bool has_cpg_mstp; + static void __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd) { struct generic_pm_domain *genpd = &pd->genpd; @@ -248,6 +251,18 @@ static void __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd) gov = &pm_domain_always_on_gov; } + if (!(pd->flags & (PD_CPU | PD_SCU))) { + /* Enable Clock Domain for I/O devices */ + genpd->flags = GENPD_FLAG_PM_CLK; + if (has_cpg_mstp) { + genpd->attach_dev = cpg_mstp_attach_dev; + genpd->detach_dev = cpg_mstp_detach_dev; + } else { + genpd->attach_dev = cpg_mssr_attach_dev; + genpd->detach_dev = cpg_mssr_detach_dev; + } + } + genpd->power_off = rcar_sysc_pd_power_off; genpd->power_on = rcar_sysc_pd_power_on; @@ -294,6 +309,9 @@ static int __init rcar_sysc_pd_init(void) info = match->data; + has_cpg_mstp = of_find_compatible_node(NULL, NULL, + "renesas,cpg-mstp-clocks"); + base = of_iomap(np, 0); if (!base) { pr_warn("%s: Cannot map regs\n", np->full_name); |