From f787216f33ce5b5a2567766398f44ab62157114c Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 9 Aug 2019 15:44:51 +0200 Subject: clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain The CPG/MSSR Clock Domain driver does not implement the generic_pm_domain.power_{on,off}() callbacks, as the domain itself cannot be powered down. Hence the domain should be marked as always-on by setting the GENPD_FLAG_ALWAYS_ON flag, to prevent the core PM Domain code from considering it for power-off, and doing unnessary processing. Note that this only affects RZ/A2 SoCs. On R-Car Gen2 and Gen3 SoCs, the R-Car SYSC driver handles Clock Domain creation, and offloads only device attachment/detachment to the CPG/MSSR driver. Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman Reviewed-by: Ulf Hansson --- drivers/clk/renesas/renesas-cpg-mssr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/clk/renesas/renesas-cpg-mssr.c') diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index 52bbb9ce3807..cc39c8fff8a1 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -551,7 +551,8 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev, genpd = &pd->genpd; genpd->name = np->name; - genpd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP; + genpd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ALWAYS_ON | + GENPD_FLAG_ACTIVE_WAKEUP; genpd->attach_dev = cpg_mssr_attach_dev; genpd->detach_dev = cpg_mssr_detach_dev; pm_genpd_init(genpd, &pm_domain_always_on_gov, false); -- cgit v1.2.3