From: Geert Uytterhoeven Date: Fri, 9 Aug 2019 13:38:34 +0000 (+0200) Subject: clk: renesas: mstp: Set GENPD_FLAG_ALWAYS_ON for clock domain X-Git-Tag: v5.4-rc1~97^2~2^2^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a459a184c978ca9ad538aab93aafdde873953f30;p=thirdparty%2Flinux.git clk: renesas: mstp: Set GENPD_FLAG_ALWAYS_ON for clock domain The CPG/MSTP 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. This also gets rid of a boot warning when the Clock Domain contains an IRQ-safe device, e.g. on RZ/A1: sh_mtu2 fcff0000.timer: PM domain cpg_clocks will not be powered off Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman Reviewed-by: Ulf Hansson --- diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c index 2db9093546c60..e326e6dc09fce 100644 --- a/drivers/clk/renesas/clk-mstp.c +++ b/drivers/clk/renesas/clk-mstp.c @@ -334,7 +334,8 @@ void __init cpg_mstp_add_clk_domain(struct device_node *np) return; pd->name = np->name; - pd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP; + pd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ALWAYS_ON | + GENPD_FLAG_ACTIVE_WAKEUP; pd->attach_dev = cpg_mstp_attach_dev; pd->detach_dev = cpg_mstp_detach_dev; pm_genpd_init(pd, &pm_domain_always_on_gov, false);