From aec809fc63f61a85e4300bb70081fbe6b492171c Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Fri, 12 Aug 2016 17:02:52 +0300 Subject: [PATCH] i2c: core: Cleanup I2C ACPI namespace, take 2 I2C ACPI enumeration was originally implemented in another module under drivers/acpi/ but was later moved into i2c-core with added support for I2C ACPI operation region. Rename these acpi_i2c_ prefixed functions, structures and defines in i2c-core to i2c_acpi_ in order to have more consistent name space. This is updated version from commit a7003b65801e ("i2c: core: Cleanup I2C ACPI namespace") that got reverted due merge conflicts from commit 525e6fabeae2 ("i2c / ACPI: add support for ACPI reconfigure notifications"). Signed-off-by: Jarkko Nikula Reviewed-by: Andy Shevchenko Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core.c | 86 +++++++++++++++++++++--------------------- 1 file changed, 43 insertions(+), 43 deletions(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 56e50ca905ba..d4b2f66d8994 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -88,7 +88,7 @@ void i2c_transfer_trace_unreg(void) } #if defined(CONFIG_ACPI) -struct acpi_i2c_handler_data { +struct i2c_acpi_handler_data { struct acpi_connection_info info; struct i2c_adapter *adapter; }; @@ -103,15 +103,15 @@ struct gsb_buffer { }; } __packed; -struct acpi_i2c_lookup { +struct i2c_acpi_lookup { struct i2c_board_info *info; acpi_handle adapter_handle; acpi_handle device_handle; }; -static int acpi_i2c_fill_info(struct acpi_resource *ares, void *data) +static int i2c_acpi_fill_info(struct acpi_resource *ares, void *data) { - struct acpi_i2c_lookup *lookup = data; + struct i2c_acpi_lookup *lookup = data; struct i2c_board_info *info = lookup->info; struct acpi_resource_i2c_serialbus *sb; acpi_status status; @@ -136,13 +136,13 @@ static int acpi_i2c_fill_info(struct acpi_resource *ares, void *data) return 1; } -static int acpi_i2c_get_info(struct acpi_device *adev, +static int i2c_acpi_get_info(struct acpi_device *adev, struct i2c_board_info *info, acpi_handle *adapter_handle) { struct list_head resource_list; struct resource_entry *entry; - struct acpi_i2c_lookup lookup; + struct i2c_acpi_lookup lookup; int ret; if (acpi_bus_get_status(adev) || !adev->status.present || @@ -159,7 +159,7 @@ static int acpi_i2c_get_info(struct acpi_device *adev, /* Look up for I2cSerialBus resource */ INIT_LIST_HEAD(&resource_list); ret = acpi_dev_get_resources(adev, &resource_list, - acpi_i2c_fill_info, &lookup); + i2c_acpi_fill_info, &lookup); acpi_dev_free_resource_list(&resource_list); if (ret < 0 || !info->addr) @@ -186,7 +186,7 @@ static int acpi_i2c_get_info(struct acpi_device *adev, return 0; } -static void acpi_i2c_register_device(struct i2c_adapter *adapter, +static void i2c_acpi_register_device(struct i2c_adapter *adapter, struct acpi_device *adev, struct i2c_board_info *info) { @@ -201,7 +201,7 @@ static void acpi_i2c_register_device(struct i2c_adapter *adapter, } } -static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level, +static acpi_status i2c_acpi_add_device(acpi_handle handle, u32 level, void *data, void **return_value) { struct i2c_adapter *adapter = data; @@ -212,28 +212,28 @@ static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level, if (acpi_bus_get_device(handle, &adev)) return AE_OK; - if (acpi_i2c_get_info(adev, &info, &adapter_handle)) + if (i2c_acpi_get_info(adev, &info, &adapter_handle)) return AE_OK; if (adapter_handle != ACPI_HANDLE(&adapter->dev)) return AE_OK; - acpi_i2c_register_device(adapter, adev, &info); + i2c_acpi_register_device(adapter, adev, &info); return AE_OK; } -#define ACPI_I2C_MAX_SCAN_DEPTH 32 +#define I2C_ACPI_MAX_SCAN_DEPTH 32 /** - * acpi_i2c_register_devices - enumerate I2C slave devices behind adapter + * i2c_acpi_register_devices - enumerate I2C slave devices behind adapter * @adap: pointer to adapter * * Enumerate all I2C slave devices behind this adapter by walking the ACPI * namespace. When a device is found it will be added to the Linux device * model and bound to the corresponding ACPI handle. */ -static void acpi_i2c_register_devices(struct i2c_adapter *adap) +static void i2c_acpi_register_devices(struct i2c_adapter *adap) { acpi_status status; @@ -241,14 +241,14 @@ static void acpi_i2c_register_devices(struct i2c_adapter *adap) return; status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_I2C_MAX_SCAN_DEPTH, - acpi_i2c_add_device, NULL, + I2C_ACPI_MAX_SCAN_DEPTH, + i2c_acpi_add_device, NULL, adap, NULL); if (ACPI_FAILURE(status)) dev_warn(&adap->dev, "failed to enumerate I2C slaves\n"); } -static int acpi_i2c_match_adapter(struct device *dev, void *data) +static int i2c_acpi_match_adapter(struct device *dev, void *data) { struct i2c_adapter *adapter = i2c_verify_adapter(dev); @@ -258,29 +258,29 @@ static int acpi_i2c_match_adapter(struct device *dev, void *data) return ACPI_HANDLE(dev) == (acpi_handle)data; } -static int acpi_i2c_match_device(struct device *dev, void *data) +static int i2c_acpi_match_device(struct device *dev, void *data) { return ACPI_COMPANION(dev) == data; } -static struct i2c_adapter *acpi_i2c_find_adapter_by_handle(acpi_handle handle) +static struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle) { struct device *dev; dev = bus_find_device(&i2c_bus_type, NULL, handle, - acpi_i2c_match_adapter); + i2c_acpi_match_adapter); return dev ? i2c_verify_adapter(dev) : NULL; } -static struct i2c_client *acpi_i2c_find_client_by_adev(struct acpi_device *adev) +static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev) { struct device *dev; - dev = bus_find_device(&i2c_bus_type, NULL, adev, acpi_i2c_match_device); + dev = bus_find_device(&i2c_bus_type, NULL, adev, i2c_acpi_match_device); return dev ? i2c_verify_client(dev) : NULL; } -static int acpi_i2c_notify(struct notifier_block *nb, unsigned long value, +static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value, void *arg) { struct acpi_device *adev = arg; @@ -291,20 +291,20 @@ static int acpi_i2c_notify(struct notifier_block *nb, unsigned long value, switch (value) { case ACPI_RECONFIG_DEVICE_ADD: - if (acpi_i2c_get_info(adev, &info, &adapter_handle)) + if (i2c_acpi_get_info(adev, &info, &adapter_handle)) break; - adapter = acpi_i2c_find_adapter_by_handle(adapter_handle); + adapter = i2c_acpi_find_adapter_by_handle(adapter_handle); if (!adapter) break; - acpi_i2c_register_device(adapter, adev, &info); + i2c_acpi_register_device(adapter, adev, &info); break; case ACPI_RECONFIG_DEVICE_REMOVE: if (!acpi_device_enumerated(adev)) break; - client = acpi_i2c_find_client_by_adev(adev); + client = i2c_acpi_find_client_by_adev(adev); if (!client) break; @@ -317,10 +317,10 @@ static int acpi_i2c_notify(struct notifier_block *nb, unsigned long value, } static struct notifier_block i2c_acpi_notifier = { - .notifier_call = acpi_i2c_notify, + .notifier_call = i2c_acpi_notify, }; #else /* CONFIG_ACPI */ -static inline void acpi_i2c_register_devices(struct i2c_adapter *adap) { } +static inline void i2c_acpi_register_devices(struct i2c_adapter *adap) { } extern struct notifier_block i2c_acpi_notifier; #endif /* CONFIG_ACPI */ @@ -386,12 +386,12 @@ static int acpi_gsb_i2c_write_bytes(struct i2c_client *client, } static acpi_status -acpi_i2c_space_handler(u32 function, acpi_physical_address command, +i2c_acpi_space_handler(u32 function, acpi_physical_address command, u32 bits, u64 *value64, void *handler_context, void *region_context) { struct gsb_buffer *gsb = (struct gsb_buffer *)value64; - struct acpi_i2c_handler_data *data = handler_context; + struct i2c_acpi_handler_data *data = handler_context; struct acpi_connection_info *info = &data->info; struct acpi_resource_i2c_serialbus *sb; struct i2c_adapter *adapter = data->adapter; @@ -510,10 +510,10 @@ acpi_i2c_space_handler(u32 function, acpi_physical_address command, } -static int acpi_i2c_install_space_handler(struct i2c_adapter *adapter) +static int i2c_acpi_install_space_handler(struct i2c_adapter *adapter) { acpi_handle handle; - struct acpi_i2c_handler_data *data; + struct i2c_acpi_handler_data *data; acpi_status status; if (!adapter->dev.parent) @@ -524,7 +524,7 @@ static int acpi_i2c_install_space_handler(struct i2c_adapter *adapter) if (!handle) return -ENODEV; - data = kzalloc(sizeof(struct acpi_i2c_handler_data), + data = kzalloc(sizeof(struct i2c_acpi_handler_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -538,7 +538,7 @@ static int acpi_i2c_install_space_handler(struct i2c_adapter *adapter) status = acpi_install_address_space_handler(handle, ACPI_ADR_SPACE_GSBUS, - &acpi_i2c_space_handler, + &i2c_acpi_space_handler, NULL, data); if (ACPI_FAILURE(status)) { @@ -552,10 +552,10 @@ static int acpi_i2c_install_space_handler(struct i2c_adapter *adapter) return 0; } -static void acpi_i2c_remove_space_handler(struct i2c_adapter *adapter) +static void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter) { acpi_handle handle; - struct acpi_i2c_handler_data *data; + struct i2c_acpi_handler_data *data; acpi_status status; if (!adapter->dev.parent) @@ -568,7 +568,7 @@ static void acpi_i2c_remove_space_handler(struct i2c_adapter *adapter) acpi_remove_address_space_handler(handle, ACPI_ADR_SPACE_GSBUS, - &acpi_i2c_space_handler); + &i2c_acpi_space_handler); status = acpi_bus_get_private_data(handle, (void **)&data); if (ACPI_SUCCESS(status)) @@ -577,10 +577,10 @@ static void acpi_i2c_remove_space_handler(struct i2c_adapter *adapter) acpi_bus_detach_private_data(handle); } #else /* CONFIG_ACPI_I2C_OPREGION */ -static inline void acpi_i2c_remove_space_handler(struct i2c_adapter *adapter) +static inline void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter) { } -static inline int acpi_i2c_install_space_handler(struct i2c_adapter *adapter) +static inline int i2c_acpi_install_space_handler(struct i2c_adapter *adapter) { return 0; } #endif /* CONFIG_ACPI_I2C_OPREGION */ @@ -1752,8 +1752,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap) /* create pre-declared device nodes */ of_i2c_register_devices(adap); - acpi_i2c_register_devices(adap); - acpi_i2c_install_space_handler(adap); + i2c_acpi_register_devices(adap); + i2c_acpi_install_space_handler(adap); if (adap->nr < __i2c_first_dynamic_bus_num) i2c_scan_static_board_info(adap); @@ -1925,7 +1925,7 @@ void i2c_del_adapter(struct i2c_adapter *adap) return; } - acpi_i2c_remove_space_handler(adap); + i2c_acpi_remove_space_handler(adap); /* Tell drivers about this removal */ mutex_lock(&core_lock); bus_for_each_drv(&i2c_bus_type, NULL, adap, -- 2.39.5