diff options
Diffstat (limited to 'drivers/platform/surface')
| -rw-r--r-- | drivers/platform/surface/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/platform/surface/aggregator/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/platform/surface/aggregator/bus.c | 24 | ||||
| -rw-r--r-- | drivers/platform/surface/aggregator/bus.h | 3 | ||||
| -rw-r--r-- | drivers/platform/surface/aggregator/core.c | 3 | ||||
| -rw-r--r-- | drivers/platform/surface/surface_aggregator_registry.c | 32 |
6 files changed, 26 insertions, 44 deletions
diff --git a/drivers/platform/surface/Kconfig b/drivers/platform/surface/Kconfig index 3105f651614f..5f0578e25f71 100644 --- a/drivers/platform/surface/Kconfig +++ b/drivers/platform/surface/Kconfig @@ -5,7 +5,6 @@ menuconfig SURFACE_PLATFORMS bool "Microsoft Surface Platform-Specific Device Drivers" - depends on ACPI default y help Say Y here to get to see options for platform-specific device drivers @@ -30,12 +29,14 @@ config SURFACE3_WMI config SURFACE_3_BUTTON tristate "Power/home/volume buttons driver for Microsoft Surface 3 tablet" + depends on ACPI depends on KEYBOARD_GPIO && I2C help This driver handles the power/home/volume buttons on the Microsoft Surface 3 tablet. config SURFACE_3_POWER_OPREGION tristate "Surface 3 battery platform operation region support" + depends on ACPI depends on I2C help This driver provides support for ACPI operation @@ -126,6 +127,7 @@ config SURFACE_DTX config SURFACE_GPE tristate "Surface GPE/Lid Support Driver" + depends on ACPI depends on DMI help This driver marks the GPEs related to the ACPI lid device found on @@ -135,6 +137,7 @@ config SURFACE_GPE config SURFACE_HOTPLUG tristate "Surface Hot-Plug Driver" + depends on ACPI depends on GPIOLIB help Driver for out-of-band hot-plug event signaling on Microsoft Surface @@ -154,6 +157,7 @@ config SURFACE_HOTPLUG config SURFACE_PLATFORM_PROFILE tristate "Surface Platform Profile Driver" + depends on ACPI depends on SURFACE_AGGREGATOR_REGISTRY select ACPI_PLATFORM_PROFILE help @@ -176,6 +180,7 @@ config SURFACE_PLATFORM_PROFILE config SURFACE_PRO3_BUTTON tristate "Power/home/volume buttons driver for Microsoft Surface Pro 3/4 tablet" + depends on ACPI depends on INPUT help This driver handles the power/home/volume buttons on the Microsoft Surface Pro 3/4 tablet. diff --git a/drivers/platform/surface/aggregator/Kconfig b/drivers/platform/surface/aggregator/Kconfig index fd6dc452f3e8..cab020324256 100644 --- a/drivers/platform/surface/aggregator/Kconfig +++ b/drivers/platform/surface/aggregator/Kconfig @@ -4,6 +4,7 @@ menuconfig SURFACE_AGGREGATOR tristate "Microsoft Surface System Aggregator Module Subsystem and Drivers" depends on SERIAL_DEV_BUS + depends on ACPI select CRC_CCITT help The Surface System Aggregator Module (Surface SAM or SSAM) is an diff --git a/drivers/platform/surface/aggregator/bus.c b/drivers/platform/surface/aggregator/bus.c index 0a40dd9c94ed..abbbb5b08b07 100644 --- a/drivers/platform/surface/aggregator/bus.c +++ b/drivers/platform/surface/aggregator/bus.c @@ -374,27 +374,19 @@ static int ssam_remove_device(struct device *dev, void *_data) } /** - * ssam_controller_remove_clients() - Remove SSAM client devices registered as - * direct children under the given controller. - * @ctrl: The controller to remove all direct clients for. + * ssam_remove_clients() - Remove SSAM client devices registered as direct + * children under the given parent device. + * @dev: The (parent) device to remove all direct clients for. * - * Remove all SSAM client devices registered as direct children under the - * given controller. Note that this only accounts for direct children of the - * controller device. This does not take care of any client devices where the - * parent device has been manually set before calling ssam_device_add. Refer - * to ssam_device_add()/ssam_device_remove() for more details on those cases. - * - * To avoid new devices being added in parallel to this call, the main - * controller lock (not statelock) must be held during this (and if - * necessary, any subsequent deinitialization) call. + * Remove all SSAM client devices registered as direct children under the given + * device. Note that this only accounts for direct children of the device. + * Refer to ssam_device_add()/ssam_device_remove() for more details. */ -void ssam_controller_remove_clients(struct ssam_controller *ctrl) +void ssam_remove_clients(struct device *dev) { - struct device *dev; - - dev = ssam_controller_device(ctrl); device_for_each_child_reverse(dev, NULL, ssam_remove_device); } +EXPORT_SYMBOL_GPL(ssam_remove_clients); /** * ssam_bus_register() - Register and set-up the SSAM client device bus. diff --git a/drivers/platform/surface/aggregator/bus.h b/drivers/platform/surface/aggregator/bus.h index ed032c2cbdb2..6964ee84e79c 100644 --- a/drivers/platform/surface/aggregator/bus.h +++ b/drivers/platform/surface/aggregator/bus.h @@ -12,14 +12,11 @@ #ifdef CONFIG_SURFACE_AGGREGATOR_BUS -void ssam_controller_remove_clients(struct ssam_controller *ctrl); - int ssam_bus_register(void); void ssam_bus_unregister(void); #else /* CONFIG_SURFACE_AGGREGATOR_BUS */ -static inline void ssam_controller_remove_clients(struct ssam_controller *ctrl) {} static inline int ssam_bus_register(void) { return 0; } static inline void ssam_bus_unregister(void) {} diff --git a/drivers/platform/surface/aggregator/core.c b/drivers/platform/surface/aggregator/core.c index c61bbeeec2df..d384d36098c2 100644 --- a/drivers/platform/surface/aggregator/core.c +++ b/drivers/platform/surface/aggregator/core.c @@ -22,6 +22,7 @@ #include <linux/sysfs.h> #include <linux/surface_aggregator/controller.h> +#include <linux/surface_aggregator/device.h> #include "bus.h" #include "controller.h" @@ -735,7 +736,7 @@ static void ssam_serial_hub_remove(struct serdev_device *serdev) ssam_controller_lock(ctrl); /* Remove all client devices. */ - ssam_controller_remove_clients(ctrl); + ssam_remove_clients(&serdev->dev); /* Act as if suspending to silence events. */ status = ssam_ctrl_notif_display_off(ctrl); diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c index e70f4c63554e..ce2bd88feeaa 100644 --- a/drivers/platform/surface/surface_aggregator_registry.c +++ b/drivers/platform/surface/surface_aggregator_registry.c @@ -258,20 +258,6 @@ static int ssam_uid_from_string(const char *str, struct ssam_device_uid *uid) return 0; } -static int ssam_hub_remove_devices_fn(struct device *dev, void *data) -{ - if (!is_ssam_device(dev)) - return 0; - - ssam_device_remove(to_ssam_device(dev)); - return 0; -} - -static void ssam_hub_remove_devices(struct device *parent) -{ - device_for_each_child_reverse(parent, NULL, ssam_hub_remove_devices_fn); -} - static int ssam_hub_add_device(struct device *parent, struct ssam_controller *ctrl, struct fwnode_handle *node) { @@ -297,8 +283,8 @@ static int ssam_hub_add_device(struct device *parent, struct ssam_controller *ct return status; } -static int ssam_hub_add_devices(struct device *parent, struct ssam_controller *ctrl, - struct fwnode_handle *node) +static int ssam_hub_register_clients(struct device *parent, struct ssam_controller *ctrl, + struct fwnode_handle *node) { struct fwnode_handle *child; int status; @@ -317,7 +303,7 @@ static int ssam_hub_add_devices(struct device *parent, struct ssam_controller *c return 0; err: - ssam_hub_remove_devices(parent); + ssam_remove_clients(parent); return status; } @@ -412,9 +398,9 @@ static void ssam_base_hub_update_workfn(struct work_struct *work) hub->state = state; if (hub->state == SSAM_BASE_HUB_CONNECTED) - status = ssam_hub_add_devices(&hub->sdev->dev, hub->sdev->ctrl, node); + status = ssam_hub_register_clients(&hub->sdev->dev, hub->sdev->ctrl, node); else - ssam_hub_remove_devices(&hub->sdev->dev); + ssam_remove_clients(&hub->sdev->dev); if (status) dev_err(&hub->sdev->dev, "failed to update base-hub devices: %d\n", status); @@ -496,7 +482,7 @@ static int ssam_base_hub_probe(struct ssam_device *sdev) err: ssam_notifier_unregister(sdev->ctrl, &hub->notif); cancel_delayed_work_sync(&hub->update_work); - ssam_hub_remove_devices(&sdev->dev); + ssam_remove_clients(&sdev->dev); return status; } @@ -508,7 +494,7 @@ static void ssam_base_hub_remove(struct ssam_device *sdev) ssam_notifier_unregister(sdev->ctrl, &hub->notif); cancel_delayed_work_sync(&hub->update_work); - ssam_hub_remove_devices(&sdev->dev); + ssam_remove_clients(&sdev->dev); } static const struct ssam_device_id ssam_base_hub_match[] = { @@ -611,7 +597,7 @@ static int ssam_platform_hub_probe(struct platform_device *pdev) set_secondary_fwnode(&pdev->dev, root); - status = ssam_hub_add_devices(&pdev->dev, ctrl, root); + status = ssam_hub_register_clients(&pdev->dev, ctrl, root); if (status) { set_secondary_fwnode(&pdev->dev, NULL); software_node_unregister_node_group(nodes); @@ -625,7 +611,7 @@ static int ssam_platform_hub_remove(struct platform_device *pdev) { const struct software_node **nodes = platform_get_drvdata(pdev); - ssam_hub_remove_devices(&pdev->dev); + ssam_remove_clients(&pdev->dev); set_secondary_fwnode(&pdev->dev, NULL); software_node_unregister_node_group(nodes); return 0; |