x86: GEODE fix MFGPT input clock value (36445cf3) · Commits · 戴 / test

arch/x86/kernel/mfgpt_32.c

+13 −14

Original line number	Diff line number	Diff line
		@@ -12,21 +12,20 @@
		*/

		/*
		* We are using the 32Khz input clock - its the only one that has the
		* We are using the 32.768kHz input clock - it's the only one that has the
		* ranges we find desirable. The following table lists the suitable
		* divisors and the associated hz, minimum interval
		* and the maximum interval:
		* divisors and the associated Hz, minimum interval and the maximum interval:
		*
		* Divisor Hz Min Delta (S) Max Delta (S)
		* 1 32000 .0005 2.048
		* 2 16000 .001 4.096
		* 4 8000 .002 8.192
		* 8 4000 .004 16.384
		* 16 2000 .008 32.768
		* 32 1000 .016 65.536
		* 64 500 .032 131.072
		* 128 250 .064 262.144
		* 256 125 .128 524.288
		* Divisor Hz Min Delta (s) Max Delta (s)
		* 1 32768 .00048828125 2.000
		* 2 16384 .0009765625 4.000
		* 4 8192 .001953125 8.000
		* 8 4096 .00390625 16.000
		* 16 2048 .0078125 32.000
		* 32 1024 .015625 64.000
		* 64 512 .03125 128.000
		* 128 256 .0625 256.000
		* 256 128 .125 512.000
		*/

		#include <linux/kernel.h>
		@@ -45,7 +44,7 @@ static struct mfgpt_timer_t {

		#define MFGPT_DIVISOR 16
		#define MFGPT_SCALE 4 /* divisor = 2^(scale) */
		#define MFGPT_HZ (32000 / MFGPT_DIVISOR)
		#define MFGPT_HZ (32768 / MFGPT_DIVISOR)
		#define MFGPT_PERIODIC (MFGPT_HZ / HZ)

		#ifdef CONFIG_GEODE_MFGPT_TIMER