[PATCH 2/5] cpufreq: loongson3: Adjust the width of id and val in smc_message

[Huacai Chen]

The id field of smc_message is usually stand for the CPU ID. In the past
this driver was only tested for desktop and laptop productions so 4-bits
are enough. But now we have servers that can have as many as 256 cores,
so we need 8-bits CPU ID.

On the other hand, the val field is usually stand for CPU frequency so
12-bits are enough to represent 4GHz, and for higher frequencies there
is an extra bit to extend (enough for 8GHz).

In theory, this is a incompatible change, but fortunately the old SMC
firmwares are not widely shipped and can be updated on the air, thus we
can safely adjust the widths.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Hongliang Wang <wanghongliang@xxxxxxxxxxx>
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
---
 drivers/cpufreq/loongson3_cpufreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/loongson3_cpufreq.c b/drivers/cpufreq/loongson3_cpufreq.c
index 1e8715ea1b77..630f679aa739 100644
--- a/drivers/cpufreq/loongson3_cpufreq.c
+++ b/drivers/cpufreq/loongson3_cpufreq.c
@@ -21,9 +21,9 @@
 union smc_message {
 	u32 value;
 	struct {
-		u32 id		: 4;
+		u32 id		: 8;
 		u32 info	: 4;
-		u32 val		: 16;
+		u32 val		: 12;
 		u32 cmd		: 6;
 		u32 extra	: 1;
 		u32 complete	: 1;
-- 
2.52.0