linux-kernel - [PATCH v1 3/3] x86/platform/intel-mid: Add special handling of ACPI HW reduced platforms

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Date:   Wed, 17 Jan 2018 19:34:09 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 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 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 | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 2c67bae6bb53..51bf2f6c9e97 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -13,6 +13,7 @@
 
 #define pr_fmt(fmt) "intel_mid: " fmt
 
+#include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
@@ -172,6 +173,14 @@ static unsigned char intel_mid_get_nmi_reason(void)
 	return 0;
 }
 
+void __init acpi_reduced_hw_init(void)
+{
+	/*
+	 * Do nothing for now as everything needed done in
+	 * x86_intel_mid_early_setup() below.
+	 */
+}
+
 /*
  * Moorestown specific x86_init function overrides and early setup
  * calls.
-- 
2.15.1