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-rw-r--r--drivers/acpi/acpi_processor.c9
-rw-r--r--drivers/acpi/acpi_video.c9
-rw-r--r--drivers/acpi/acpica/hwregs.c23
-rw-r--r--drivers/acpi/bus.c2
-rw-r--r--drivers/acpi/ec.c29
-rw-r--r--drivers/acpi/internal.h2
-rw-r--r--drivers/acpi/processor_throttling.c9
7 files changed, 48 insertions, 35 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 0d92d0f915e9..c7ba948d253c 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -331,15 +331,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
pr->pblk = object.processor.pblk_address;
-
- /*
- * We don't care about error returns - we just try to mark
- * these reserved so that nobody else is confused into thinking
- * that this region might be unused..
- *
- * (In particular, allocating the IO range for Cardbus)
- */
- request_region(pr->throttling.address, 6, "ACPI CPU throttle");
}
/*
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 3d5b8a099351..c1d138e128cb 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -754,7 +754,8 @@ static int acpi_video_bqc_quirk(struct acpi_video_device *device,
}
int acpi_video_get_levels(struct acpi_device *device,
- struct acpi_video_device_brightness **dev_br)
+ struct acpi_video_device_brightness **dev_br,
+ int *pmax_level)
{
union acpi_object *obj = NULL;
int i, max_level = 0, count = 0, level_ac_battery = 0;
@@ -841,6 +842,8 @@ int acpi_video_get_levels(struct acpi_device *device,
br->count = count;
*dev_br = br;
+ if (pmax_level)
+ *pmax_level = max_level;
out:
kfree(obj);
@@ -869,7 +872,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
struct acpi_video_device_brightness *br = NULL;
int result = -EINVAL;
- result = acpi_video_get_levels(device->dev, &br);
+ result = acpi_video_get_levels(device->dev, &br, &max_level);
if (result)
return result;
device->brightness = br;
@@ -1737,7 +1740,7 @@ static void acpi_video_run_bcl_for_osi(struct acpi_video_bus *video)
mutex_lock(&video->device_list_lock);
list_for_each_entry(dev, &video->video_device_list, entry) {
- if (!acpi_video_device_lcd_query_levels(dev, &levels))
+ if (!acpi_video_device_lcd_query_levels(dev->dev->handle, &levels))
kfree(levels);
}
mutex_unlock(&video->device_list_lock);
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index 0f18dbc9a37f..daceb80022b0 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -83,27 +83,22 @@ acpi_hw_write_multiple(u32 value,
static u8
acpi_hw_get_access_bit_width(struct acpi_generic_address *reg, u8 max_bit_width)
{
- u64 address;
-
if (!reg->access_width) {
+ if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+ max_bit_width = 32;
+ }
+
/*
* Detect old register descriptors where only the bit_width field
- * makes senses. The target address is copied to handle possible
- * alignment issues.
+ * makes senses.
*/
- ACPI_MOVE_64_TO_64(&address, &reg->address);
- if (!reg->bit_offset && reg->bit_width &&
+ if (reg->bit_width < max_bit_width &&
+ !reg->bit_offset && reg->bit_width &&
ACPI_IS_POWER_OF_TWO(reg->bit_width) &&
- ACPI_IS_ALIGNED(reg->bit_width, 8) &&
- ACPI_IS_ALIGNED(address, reg->bit_width)) {
+ ACPI_IS_ALIGNED(reg->bit_width, 8)) {
return (reg->bit_width);
- } else {
- if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
- return (32);
- } else {
- return (max_bit_width);
- }
}
+ return (max_bit_width);
} else {
return (1 << (reg->access_width + 2));
}
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 31e8da648fff..262ca31b86d9 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1051,7 +1051,7 @@ static int __init acpi_bus_init(void)
* Maybe EC region is required at bus_scan/acpi_get_devices. So it
* is necessary to enable it as early as possible.
*/
- acpi_boot_ec_enable();
+ acpi_ec_dsdt_probe();
printk(KERN_INFO PREFIX "Interpreter enabled\n");
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 0e70181f150c..73c76d646064 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1446,10 +1446,30 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
return AE_OK;
}
-int __init acpi_boot_ec_enable(void)
+static const struct acpi_device_id ec_device_ids[] = {
+ {"PNP0C09", 0},
+ {"", 0},
+};
+
+int __init acpi_ec_dsdt_probe(void)
{
- if (!boot_ec)
+ acpi_status status;
+
+ if (boot_ec)
return 0;
+
+ /*
+ * Finding EC from DSDT if there is no ECDT EC available. When this
+ * function is invoked, ACPI tables have been fully loaded, we can
+ * walk namespace now.
+ */
+ boot_ec = make_acpi_ec();
+ if (!boot_ec)
+ return -ENOMEM;
+ status = acpi_get_devices(ec_device_ids[0].id,
+ ec_parse_device, boot_ec, NULL);
+ if (ACPI_FAILURE(status) || !boot_ec->handle)
+ return -ENODEV;
if (!ec_install_handlers(boot_ec)) {
first_ec = boot_ec;
return 0;
@@ -1457,11 +1477,6 @@ int __init acpi_boot_ec_enable(void)
return -EFAULT;
}
-static const struct acpi_device_id ec_device_ids[] = {
- {"PNP0C09", 0},
- {"", 0},
-};
-
#if 0
/*
* Some EC firmware variations refuses to respond QR_EC when SCI_EVT is not
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 9bb0773d39bf..27cc7feabfe4 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -181,7 +181,7 @@ typedef int (*acpi_ec_query_func) (void *data);
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
-int acpi_boot_ec_enable(void);
+int acpi_ec_dsdt_probe(void);
void acpi_ec_block_transactions(void);
void acpi_ec_unblock_transactions(void);
void acpi_ec_unblock_transactions_early(void);
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index f170d746336d..c72e64893d03 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -676,6 +676,15 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
if (!pr->flags.throttling)
return -ENODEV;
+ /*
+ * We don't care about error returns - we just try to mark
+ * these reserved so that nobody else is confused into thinking
+ * that this region might be unused..
+ *
+ * (In particular, allocating the IO range for Cardbus)
+ */
+ request_region(pr->throttling.address, 6, "ACPI CPU throttle");
+
pr->throttling.state = 0;
duty_mask = pr->throttling.state_count - 1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-01 00:44:58 +0000