linux-kernel - [PATCH v5 3/3] x86/platform/intel-mid: Add special handling of ACPI HW reduced platforms

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Date:   Tue, 20 Feb 2018 20:05:06 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
        x86@...nel.org, Eric Biederman <ebiederm@...ssion.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        linux-acpi@...r.kernel.org, Juergen Gross <jgross@...e.com>,
        linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v5 3/3] x86/platform/intel-mid: Add special handling of ACPI HW reduced platforms

When switching to ACPI HW reduced platforms we still want to initialize timers.
Override x86_init.acpi.reduced_hw_init to achieve that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 arch/x86/platform/intel-mid/intel-mid.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 2c67bae6bb53..c556f1e8936e 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -199,6 +199,12 @@ void __init x86_intel_mid_early_setup(void)
 
 	legacy_pic = &null_legacy_pic;
 
+	/*
+	 * Do nothing for now as everything needed done in
+	 * x86_intel_mid_early_setup() below.
+	 */
+	x86_init.acpi.reduced_hw_early_init = x86_init_noop;
+
 	pm_power_off = intel_mid_power_off;
 	machine_ops.emergency_restart  = intel_mid_reboot;
 
-- 
2.15.1