From 904cc1e637a00dba1b58e7752f485f90ebf2a568 Mon Sep 17 00:00:00 2001 From: Naga Chumbalkar Date: Tue, 26 Apr 2011 17:05:18 +0000 Subject: [PATCH] [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 Signed-off-by: Dave Jones Cc: stable@kernel.org --- arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c index 755a31e0f5b0..907c8e637ef5 100644 --- a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c @@ -39,7 +39,7 @@ #include -#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 { -- GitLab