From: Geert Uytterhoeven Date: Tue, 24 Aug 2021 15:23:38 +0000 (+0200) Subject: PM: domains: Fix domain attach for CONFIG_PM_OPP=n X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=656164181eece68a2f99f0b8a1c5558184b67d7b;p=linux.git PM: domains: Fix domain attach for CONFIG_PM_OPP=n If CONFIG_PM_OPP=n, of_get_required_opp_performance_state() always returns -EOPNOTSUPP, and all drivers for devices that are part of a PM Domain fail to probe with: failed to set required performance state for power-domain foo: -95 probe of bar failed with error -95 Fix this by treating -EOPNOTSUPP the same as -ENODEV. Fixes: c016baf7dc58e77a ("PM: domains: Add support for 'required-opps' to set default perf state") Signed-off-by: Geert Uytterhoeven Reviewed-by: Niklas Söderlund Reviewed-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index e1c8994ae225e..adb41de68e0aa 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2689,7 +2689,7 @@ static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev, /* Set the default performance state */ pstate = of_get_required_opp_performance_state(dev->of_node, index); - if (pstate < 0 && pstate != -ENODEV) { + if (pstate < 0 && pstate != -ENODEV && pstate != -EOPNOTSUPP) { ret = pstate; goto err; } else if (pstate > 0) {