From 373c612d72461ddaea223592df31e62c934aae61 Mon Sep 17 00:00:00 2001 From: "Russell King (Oracle)" Date: Wed, 11 Jan 2023 10:54:21 +0000 Subject: i2c: add fwnode APIs Add fwnode APIs for finding and getting I2C adapters, which will be used by the SFP code. These are passed the fwnode corresponding to the adapter, and return the I2C adapter. It is the responsibility of the caller to find the appropriate fwnode. We keep the DT and ACPI interfaces, but where appropriate, recode them to use the fwnode interfaces internally. Reviewed-by: Mika Westerberg Signed-off-by: Russell King (Oracle) Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-of.c | 66 ----------------------------------------------- 1 file changed, 66 deletions(-) (limited to 'drivers/i2c/i2c-core-of.c') diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index 3ed74aa4b44b..bce6b796e04c 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -113,72 +113,6 @@ void of_i2c_register_devices(struct i2c_adapter *adap) of_node_put(bus); } -static int of_dev_or_parent_node_match(struct device *dev, const void *data) -{ - if (dev->of_node == data) - return 1; - - if (dev->parent) - return dev->parent->of_node == data; - - return 0; -} - -/* must call put_device() when done with returned i2c_client device */ -struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) -{ - struct device *dev; - struct i2c_client *client; - - dev = bus_find_device_by_of_node(&i2c_bus_type, node); - if (!dev) - return NULL; - - client = i2c_verify_client(dev); - if (!client) - put_device(dev); - - return client; -} -EXPORT_SYMBOL(of_find_i2c_device_by_node); - -/* must call put_device() when done with returned i2c_adapter device */ -struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) -{ - struct device *dev; - struct i2c_adapter *adapter; - - dev = bus_find_device(&i2c_bus_type, NULL, node, - of_dev_or_parent_node_match); - if (!dev) - return NULL; - - adapter = i2c_verify_adapter(dev); - if (!adapter) - put_device(dev); - - return adapter; -} -EXPORT_SYMBOL(of_find_i2c_adapter_by_node); - -/* must call i2c_put_adapter() when done with returned i2c_adapter device */ -struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node) -{ - struct i2c_adapter *adapter; - - adapter = of_find_i2c_adapter_by_node(node); - if (!adapter) - return NULL; - - if (!try_module_get(adapter->owner)) { - put_device(&adapter->dev); - adapter = NULL; - } - - return adapter; -} -EXPORT_SYMBOL(of_get_i2c_adapter_by_node); - static const struct of_device_id* i2c_of_match_device_sysfs(const struct of_device_id *matches, struct i2c_client *client) -- cgit v1.2.3