diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 39 | ||||
| -rw-r--r-- | drivers/serial/8250_pnp.c | 3 | ||||
| -rw-r--r-- | drivers/video/riva/fbdev.c | 4 |
3 files changed, 14 insertions, 32 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 562124ed785..cdf78943af4 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -89,12 +89,6 @@ module_param(nocst, uint, 0000); static unsigned int bm_history __read_mostly = (HZ >= 800 ? 0xFFFFFFFF : ((1U << (HZ / 25)) - 1)); module_param(bm_history, uint, 0644); - -static unsigned use_ipi = 2; -module_param(use_ipi, uint, 0644); -MODULE_PARM_DESC(use_ipi, "IPI (vs. LAPIC) irqs for not waking up from C2/C3" - " machines. 0=apic, 1=ipi, 2=auto\n"); - /* -------------------------------------------------------------------------- Power Management -------------------------------------------------------------------------- */ @@ -266,13 +260,15 @@ static void acpi_cstate_enter(struct acpi_processor_cx *cstate) /* * Some BIOS implementations switch to C3 in the published C2 state. - * This seems to be a common problem on AMD boxen and Intel Dothan/Banias - * Pentium M machines. + * This seems to be a common problem on AMD boxen, but other vendors + * are affected too. We pick the most conservative approach: we assume + * that the local APIC stops in both C2 and C3. */ static void acpi_timer_check_state(int state, struct acpi_processor *pr, struct acpi_processor_cx *cx) { struct acpi_processor_power *pwr = &pr->power; + u8 type = local_apic_timer_c2_ok ? ACPI_STATE_C3 : ACPI_STATE_C2; /* * Check, if one of the previous states already marked the lapic @@ -281,17 +277,8 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr, if (pwr->timer_broadcast_on_state < state) return; - if (cx->type >= ACPI_STATE_C2) { - if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) - pr->power.timer_broadcast_on_state = state; - else if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && - boot_cpu_data.x86 == 6) && - (boot_cpu_data.x86_model == 13 || - boot_cpu_data.x86_model == 9)) - { - pr->power.timer_broadcast_on_state = state; - } - } + if (cx->type >= type) + pr->power.timer_broadcast_on_state = state; } static void acpi_propagate_timer_broadcast(struct acpi_processor *pr) @@ -306,16 +293,10 @@ static void acpi_propagate_timer_broadcast(struct acpi_processor *pr) #else cpumask_t mask = cpumask_of_cpu(pr->id); - if (use_ipi == 0) + if (pr->power.timer_broadcast_on_state < INT_MAX) on_each_cpu(switch_APIC_timer_to_ipi, &mask, 1, 1); - else if (use_ipi == 1) + else on_each_cpu(switch_ipi_to_APIC_timer, &mask, 1, 1); - else { - if (pr->power.timer_broadcast_on_state < INT_MAX) - on_each_cpu(switch_APIC_timer_to_ipi, &mask, 1, 1); - else - on_each_cpu(switch_ipi_to_APIC_timer, &mask, 1, 1); - } #endif } @@ -1033,13 +1014,13 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) case ACPI_STATE_C2: acpi_processor_power_verify_c2(cx); - if (cx->valid && use_ipi != 0 && use_ipi != 1) + if (cx->valid) acpi_timer_check_state(i, pr, cx); break; case ACPI_STATE_C3: acpi_processor_power_verify_c3(pr, cx); - if (cx->valid && use_ipi != 0 && use_ipi != 1) + if (cx->valid) acpi_timer_check_state(i, pr, cx); break; } diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c index cde5db44abf..301c8c0be9d 100644 --- a/drivers/serial/8250_pnp.c +++ b/drivers/serial/8250_pnp.c @@ -340,6 +340,9 @@ static const struct pnp_device_id pnp_dev_table[] = { { "FUJ02B8", 0 }, { "FUJ02B9", 0 }, { "FUJ02BC", 0 }, + /* Fujitsu Wacom Tablet PC devices */ + { "FUJ02E5", 0 }, + { "FUJ02E6", 0 }, /* Rockwell's (PORALiNK) 33600 INT PNP */ { "WCI0003", 0 }, /* Unkown PnP modems */ diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c index 1d1c7c624d7..d7ece8d17a2 100644 --- a/drivers/video/riva/fbdev.c +++ b/drivers/video/riva/fbdev.c @@ -285,8 +285,6 @@ static const struct riva_regs reg_template = { #define MAX_LEVEL 0x534 #define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX) -static struct backlight_properties riva_bl_data; - static int riva_bl_get_level_brightness(struct riva_par *par, int level) { @@ -372,7 +370,7 @@ static void riva_bl_init(struct riva_par *par) FB_BACKLIGHT_MAX); bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1; - bd->props.brightness = riva_bl_data.max_brightness; + bd->props.brightness = bd->props.max_brightness; bd->props.power = FB_BLANK_UNBLANK; backlight_update_status(bd); |