Merge branch 'misc' into release

Conflicts:
	include/acpi/acpixf.h

Signed-off-by: Len Brown <len.brown@intel.com>

4 files changed, 16 insertions, 6 deletions

diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 3a8d8d2eee92..9684cc827930 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -445,7 +445,8 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 
         /* Differentiate between RSDT and XSDT root tables */
 
-        if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+        if (rsdp->revision > 1 && rsdp->xsdt_physical_address
+                        && !acpi_rsdt_forced) {
                 /*
                  * Root table is an XSDT (64-bit physical addresses). We must use the
                  * XSDT if the revision is > 1 and the XSDT pointer is present, as per
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 4869fa1b7892..1c6e73c7865e 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -796,10 +796,6 @@ static int irqrouter_resume(struct sys_device *dev)
         struct list_head *node = NULL;
         struct acpi_pci_link *link = NULL;
 
-
-        /* Make sure SCI is enabled again (Apple firmware bug?) */
-        acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
-
         list_for_each(node, &acpi_link.entries) {
                 link = list_entry(node, struct acpi_pci_link, node);
                 if (!link) {
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 38bf8b43fd19..f261737636da 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -482,6 +482,7 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
         int status = AE_OK;
         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
         struct acpi_object_list args = { 1, &arg0 };
+        int state;
 
 
         arg0.integer.value = level;
@@ -490,6 +491,10 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
                 status = acpi_evaluate_object(device->dev->handle, "_BCM",
                                               &args, NULL);
         device->brightness->curr = level;
+        for (state = 2; state < device->brightness->count; state++)
+                if (level == device->brightness->levels[state])
+                        device->backlight->props.brightness = state - 2;
+
         return status;
 }
 
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 8d7cf3f31450..f1df59f59a37 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -15,12 +15,14 @@
 #include <linux/tick.h>
 
 #define BREAK_FUZZ      4       /* 4 us */
+#define PRED_HISTORY_PCT        50
 
 struct menu_device {
         int             last_state_idx;
 
         unsigned int    expected_us;
         unsigned int    predicted_us;
+        unsigned int    current_predicted_us;
         unsigned int    last_measured_us;
         unsigned int    elapsed_us;
 };
@@ -47,6 +49,12 @@ static int menu_select(struct cpuidle_device *dev)
         data->expected_us =
                 (u32) ktime_to_ns(tick_nohz_get_sleep_length()) / 1000;
 
+        /* Recalculate predicted_us based on prediction_history_pct */
+        data->predicted_us *= PRED_HISTORY_PCT;
+        data->predicted_us += (100 - PRED_HISTORY_PCT) *
+                                data->current_predicted_us;
+        data->predicted_us /= 100;
+
         /* find the deepest idle state that satisfies our constraints */
         for (i = CPUIDLE_DRIVER_STATE_START + 1; i < dev->state_count; i++) {
                 struct cpuidle_state *s = &dev->states[i];
@@ -97,7 +105,7 @@ static void menu_reflect(struct cpuidle_device *dev)
                 measured_us = -1;
 
         /* Predict time until next break event */
-        data->predicted_us = max(measured_us, data->last_measured_us);
+        data->current_predicted_us = max(measured_us, data->last_measured_us);
 
         if (last_idle_us + BREAK_FUZZ <
             data->expected_us - target->exit_latency) {