xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge branch 'linux-2.6'

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This commit is contained in:
Paul Mackerras
2008-09-10 11:36:13 +10:00
parent 7713fef065 93811d94f7
commit 7e392f8c29
1325 changed files with 38184 additions and 14629 deletions
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38
drivers/pci/hotplug/acpi_pcihp.c
View File

@@ -382,7 +382,7 @@ EXPORT_SYMBOL_GPL(acpi_get_hp_params_from_firmware);
int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags)
{
acpi_status status;
acpi_handle chandle, handle = DEVICE_ACPI_HANDLE(&(dev->dev));
acpi_handle chandle, handle;
struct pci_dev *pdev = dev;
struct pci_bus *parent;
struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -399,10 +399,25 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags)
* Per PCI firmware specification, we should run the ACPI _OSC
* method to get control of hotplug hardware before using it. If
* an _OSC is missing, we look for an OSHP to do the same thing.
* To handle different BIOS behavior, we look for _OSC and OSHP
* within the scope of the hotplug controller and its parents,
* To handle different BIOS behavior, we look for _OSC on a root
* bridge preferentially (according to PCI fw spec). Later for
* OSHP within the scope of the hotplug controller and its parents,
* upto the host bridge under which this controller exists.
*/
handle = acpi_find_root_bridge_handle(pdev);
if (handle) {
acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
dbg("Trying to get hotplug control for %s\n",
(char *)string.pointer);
status = pci_osc_control_set(handle, flags);
if (ACPI_SUCCESS(status))
goto got_one;
kfree(string.pointer);
string = (struct acpi_buffer){ ACPI_ALLOCATE_BUFFER, NULL };
}
pdev = dev;
handle = DEVICE_ACPI_HANDLE(&dev->dev);
while (!handle) {
/*
* This hotplug controller was not listed in the ACPI name
@@ -427,15 +442,9 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags)
acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
dbg("Trying to get hotplug control for %s \n",
(char *)string.pointer);
status = pci_osc_control_set(handle, flags);
if (status == AE_NOT_FOUND)
status = acpi_run_oshp(handle);
if (ACPI_SUCCESS(status)) {
dbg("Gained control for hotplug HW for pci %s (%s)\n",
pci_name(dev), (char *)string.pointer);
kfree(string.pointer);
return 0;
}
status = acpi_run_oshp(handle);
if (ACPI_SUCCESS(status))
goto got_one;
if (acpi_root_bridge(handle))
break;
chandle = handle;
@@ -449,6 +458,11 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags)
kfree(string.pointer);
return -ENODEV;
got_one:
dbg("Gained control for hotplug HW for pci %s (%s)\n", pci_name(dev),
(char *)string.pointer);
kfree(string.pointer);
return 0;
}
EXPORT_SYMBOL(acpi_get_hp_hw_control_from_firmware);

1
drivers/pci/hotplug/pciehp.h
View File

@@ -43,7 +43,6 @@ extern int pciehp_poll_mode;
extern int pciehp_poll_time;
extern int pciehp_debug;
extern int pciehp_force;
extern int pciehp_slot_with_bus;
extern struct workqueue_struct *pciehp_wq;
#define dbg(format, arg...) \

21
drivers/pci/hotplug/pciehp_core.c
View File

@@ -41,7 +41,6 @@ int pciehp_debug;
int pciehp_poll_mode;
int pciehp_poll_time;
int pciehp_force;
int pciehp_slot_with_bus;
struct workqueue_struct *pciehp_wq;
#define DRIVER_VERSION "0.4"
@@ -56,12 +55,10 @@ module_param(pciehp_debug, bool, 0644);
module_param(pciehp_poll_mode, bool, 0644);
module_param(pciehp_poll_time, int, 0644);
module_param(pciehp_force, bool, 0644);
module_param(pciehp_slot_with_bus, bool, 0644);
MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not");
MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not");
MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds");
MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing");
MODULE_PARM_DESC(pciehp_slot_with_bus, "Use bus number in the slot name");
#define PCIE_MODULE_NAME "pciehp"
@@ -194,6 +191,7 @@ static int init_slots(struct controller *ctrl)
struct slot *slot;
struct hotplug_slot *hotplug_slot;
struct hotplug_slot_info *info;
int len, dup = 1;
int retval = -ENOMEM;
list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
@@ -220,15 +218,24 @@ static int init_slots(struct controller *ctrl)
dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
"slot_device_offset=%x\n", slot->bus, slot->device,
slot->hp_slot, slot->number, ctrl->slot_device_offset);
duplicate_name:
retval = pci_hp_register(hotplug_slot,
ctrl->pci_dev->subordinate,
slot->device);
if (retval) {
/*
* If slot N already exists, we'll try to create
* slot N-1, N-2 ... N-M, until we overflow.
*/
if (retval == -EEXIST) {
len = snprintf(slot->name, SLOT_NAME_SIZE,
"%d-%d", slot->number, dup++);
if (len < SLOT_NAME_SIZE)
goto duplicate_name;
else
err("duplicate slot name overflow\n");
}
err("pci_hp_register failed with error %d\n", retval);
if (retval == -EEXIST)
err("Failed to register slot because of name "
"collision. Try \'pciehp_slot_with_bus\' "
"module option.\n");
goto error_info;
}
/* create additional sysfs entries */

11
drivers/pci/hotplug/pciehp_hpc.c
View File

@@ -1030,15 +1030,6 @@ static void pcie_shutdown_notification(struct controller *ctrl)
pciehp_free_irq(ctrl);
}
static void make_slot_name(struct slot *slot)
{
if (pciehp_slot_with_bus)
snprintf(slot->name, SLOT_NAME_SIZE, "%04d_%04d",
slot->bus, slot->number);
else
snprintf(slot->name, SLOT_NAME_SIZE, "%d", slot->number);
}
static int pcie_init_slot(struct controller *ctrl)
{
struct slot *slot;
@@ -1053,7 +1044,7 @@ static int pcie_init_slot(struct controller *ctrl)
slot->device = ctrl->slot_device_offset + slot->hp_slot;
slot->hpc_ops = ctrl->hpc_ops;
slot->number = ctrl->first_slot;
make_slot_name(slot);
snprintf(slot->name, SLOT_NAME_SIZE, "%d", slot->number);
mutex_init(&slot->lock);
INIT_DELAYED_WORK(&slot->work, pciehp_queue_pushbutton_work);
list_add(&slot->slot_list, &ctrl->slot_list);

34
drivers/pci/hotplug/shpchp_core.c
View File

@@ -39,7 +39,6 @@
int shpchp_debug;
int shpchp_poll_mode;
int shpchp_poll_time;
static int shpchp_slot_with_bus;
struct workqueue_struct *shpchp_wq;
#define DRIVER_VERSION "0.4"
@@ -53,11 +52,9 @@ MODULE_LICENSE("GPL");
module_param(shpchp_debug, bool, 0644);
module_param(shpchp_poll_mode, bool, 0644);
module_param(shpchp_poll_time, int, 0644);
module_param(shpchp_slot_with_bus, bool, 0644);
MODULE_PARM_DESC(shpchp_debug, "Debugging mode enabled or not");
MODULE_PARM_DESC(shpchp_poll_mode, "Using polling mechanism for hot-plug events or not");
MODULE_PARM_DESC(shpchp_poll_time, "Polling mechanism frequency, in seconds");
MODULE_PARM_DESC(shpchp_slot_with_bus, "Use bus number in the slot name");
#define SHPC_MODULE_NAME "shpchp"
@@ -99,23 +96,13 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
kfree(slot);
}
static void make_slot_name(struct slot *slot)
{
if (shpchp_slot_with_bus)
snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d",
slot->bus, slot->number);
else
snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%d",
slot->number);
}
static int init_slots(struct controller *ctrl)
{
struct slot *slot;
struct hotplug_slot *hotplug_slot;
struct hotplug_slot_info *info;
int retval = -ENOMEM;
int i;
int i, len, dup = 1;
for (i = 0; i < ctrl->num_slots; i++) {
slot = kzalloc(sizeof(*slot), GFP_KERNEL);
@@ -146,7 +133,7 @@ static int init_slots(struct controller *ctrl)
/* register this slot with the hotplug pci core */
hotplug_slot->private = slot;
hotplug_slot->release = &release_slot;
make_slot_name(slot);
snprintf(slot->name, SLOT_NAME_SIZE, "%d", slot->number);
hotplug_slot->ops = &shpchp_hotplug_slot_ops;
get_power_status(hotplug_slot, &info->power_status);
@@ -157,14 +144,23 @@ static int init_slots(struct controller *ctrl)
dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
"slot_device_offset=%x\n", slot->bus, slot->device,
slot->hp_slot, slot->number, ctrl->slot_device_offset);
duplicate_name:
retval = pci_hp_register(slot->hotplug_slot,
ctrl->pci_dev->subordinate, slot->device);
if (retval) {
/*
* If slot N already exists, we'll try to create
* slot N-1, N-2 ... N-M, until we overflow.
*/
if (retval == -EEXIST) {
len = snprintf(slot->name, SLOT_NAME_SIZE,
"%d-%d", slot->number, dup++);
if (len < SLOT_NAME_SIZE)
goto duplicate_name;
else
err("duplicate slot name overflow\n");
}
err("pci_hp_register failed with error %d\n", retval);
if (retval == -EEXIST)
err("Failed to register slot because of name "
"collision. Try \'shpchp_slot_with_bus\' "
"module option.\n");
goto error_info;
}