lkml.org 
[lkml]   [2013]   [Oct]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] x86: honor ACPI FADT flag indicating absence of a CMOS RTC
We shouldn't be creating a corresponding platform device in that case.

Signed-off-by: Jan Beulich <jbeulich@suse.com>

---
arch/x86/kernel/rtc.c | 5 +++++
1 file changed, 5 insertions(+)

--- 3.12-rc5/arch/x86/kernel/rtc.c
+++ 3.12-rc5-x86-ACPI-no-RTC/arch/x86/kernel/rtc.c
@@ -192,6 +192,11 @@ static __init int add_rtc_cmos(void)
if (mrst_identify_cpu())
return -ENODEV;

+#ifdef CONFIG_ACPI
+ if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC)
+ return -ENODEV;
+#endif
+
platform_device_register(&rtc_device);
dev_info(&rtc_device.dev,
"registered platform RTC device (no PNP device found)\n");




\
 
 \ /
  Last update: 2013-10-16 14:01    [W:0.037 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site