From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751280AbdKLN0X (ORCPT ); Sun, 12 Nov 2017 08:26:23 -0500 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:59246 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750994AbdKLN0V (ORCPT ); Sun, 12 Nov 2017 08:26:21 -0500 From: Mark Brown To: "Rafael J . Wysocki" Cc: linux-pm@vger.kernel.org, Kevin Hilman , linux-kernel@vger.kernel.org, Mark Brown Subject: [PATCH] PM: Provide a config snippet for disabling PM Date: Sun, 12 Nov 2017 13:26:06 +0000 Message-Id: <20171112132606.29910-1-broonie@kernel.org> X-Mailer: git-send-email 2.14.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A frequent source of build problems is poor handling of optional PM support, almost all development is done with the PM options enabled but they can be turned off. Currently few if any of the build test services do this as standard as there is no standard config for it and the use of selects and def_bool means that simply setting CONFIG_PM=n doesn't do what is expected. To make this easier provide a fragement that can be used with KCONFIG_ALLCONFIG to force PM off. CONFIG_XEN is disabled as Xen uses hibernation callbacks which end up turning on power management on architectures with Xen. Some cpuidle implementations on ARM select PM so CONFIG_CPU_IDLE is disabled, and some ARM architectures unconditionally enable PM so they are also disabled. Signed-off-by: Mark Brown --- MAINTAINERS | 1 + kernel/configs/nopm.config | 15 +++++++++++++++ 2 files changed, 16 insertions(+) create mode 100644 kernel/configs/nopm.config diff --git a/MAINTAINERS b/MAINTAINERS index 0630482e701b..81851e3d6cbe 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10805,6 +10805,7 @@ F: include/linux/pm.h F: include/linux/pm_* F: include/linux/powercap.h F: drivers/powercap/ +F: kernel/configs/nopm.config POWER STATE COORDINATION INTERFACE (PSCI) M: Mark Rutland diff --git a/kernel/configs/nopm.config b/kernel/configs/nopm.config new file mode 100644 index 000000000000..81ff07863576 --- /dev/null +++ b/kernel/configs/nopm.config @@ -0,0 +1,15 @@ +CONFIG_PM=n +CONFIG_SUSPEND=n +CONFIG_HIBERNATION=n + +# Triggers PM on OMAP +CONFIG_CPU_IDLE=n + +# Triggers enablement via hibernate callbacks +CONFIG_XEN=n + +# ARM/ARM64 architectures that select PM unconditionally +CONFIG_ARCH_OMAP2PLUS_TYPICAL=n +CONFIG_ARCH_RENESAS=n +CONFIG_ARCH_TEGRA=n +CONFIG_ARCH_VEXPRESS=n -- 2.14.1