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[CPUFREQ] Fix _OSC UUID in pcc-cpufreq 

UUID needs to be written out the way it is described in
Sec 18.5.124 of ACPI 4.0a Specification.

Platform firmware's use of this UUID/_OSC is optional, which is
why we didn't notice this bug earlier.

Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Cc: stable@kernel.org
hifive-unleashed-5.1
Naga Chumbalkar 2011-04-26 17:05:18 +00:00 committed by Dave Jones
parent 5dd12af05c
commit 904cc1e637
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
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@ -39,7 +39,7 @@
#include <acpi/processor.h>
#define PCC_VERSION "1.00.00"
#define PCC_VERSION "1.10.00"
#define POLL_LOOPS 300
#define CMD_COMPLETE 0x1
@ -102,7 +102,7 @@ static struct acpi_generic_address doorbell;
static u64 doorbell_preserve;
static u64 doorbell_write;
static u8 OSC_UUID[16] = {0x63, 0x9B, 0x2C, 0x9F, 0x70, 0x91, 0x49, 0x1f,
static u8 OSC_UUID[16] = {0x9F, 0x2C, 0x9B, 0x63, 0x91, 0x70, 0x1f, 0x49,
0xBB, 0x4F, 0xA5, 0x98, 0x2F, 0xA1, 0xB5, 0x46};
struct pcc_cpu {