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Commit 689eba77 authored by Rafał Bilski's avatar Rafał Bilski Committed by Dave Jones
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[CPUFREQ] Longhaul - Proper register access 



In previous commit I used u32 for u16 register.
This code will work only when ACPI block address is set.
For now it is only for VT8235 and VT8237.

Signed-off-by: default avatarRafal Bilski <rafalbilski@interia.pl>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent e8666b27

arch/i386/kernel/cpu/cpufreq/longhaul.c

+6 −6
Original line number Diff line number Diff line
@@ -247,7 +247,7 @@ static void longhaul_setstate(unsigned int table_index) 
	struct cpufreq_freqs freqs;

	unsigned long flags;

	unsigned int pic1_mask, pic2_mask;

	u32 bm_status = 0;

	u16 bm_status = 0;

	u32 bm_timeout = 1000;

	unsigned int dir = 0;
@@ -281,14 +281,14 @@ static void longhaul_setstate(unsigned int table_index) 
	outb(0xFE,0x21);	/* TMR0 only */



	/* Wait while PCI bus is busy. */

	if (longhaul_flags & USE_NORTHBRIDGE

	    || ((pr != NULL) && pr->flags.bm_control)) {

		bm_status = inl(acpi_regs_addr);

	if (acpi_regs_addr && (longhaul_flags & USE_NORTHBRIDGE

	    || ((pr != NULL) && pr->flags.bm_control))) {

		bm_status = inw(acpi_regs_addr);

		bm_status &= 1 << 4;

		while (bm_status && bm_timeout) {

			outl(1 << 4, acpi_regs_addr);

			outw(1 << 4, acpi_regs_addr);

			bm_timeout--;

			bm_status = inl(acpi_regs_addr);

			bm_status = inw(acpi_regs_addr);

			bm_status &= 1 << 4;

		}

	}