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Date: Tue, 31 Jan 2017 18:11:30 -0800 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com> Cc: linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Mika Westerberg <mika.westerberg@...ux.intel.com>, Hans de Goede <hdegoede@...hat.com>, Wolfram Sang <wsa@...-dreams.de> Subject: [PATCH v2 4/4] i2c: allow specify device properties in i2c_board_info With many drivers converting to using generic device properties, it is useful to provide array of device properties when instantiating new i2c client via i2c_board_info and have them automatically added to the device in question. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com> --- drivers/i2c/i2c-core.c | 16 +++++++++++++++- include/linux/i2c.h | 3 +++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index f009549f86a5..3897e78e5e9a 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1335,15 +1335,29 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) client->dev.fwnode = info->fwnode; i2c_dev_set_name(adap, client); + + if (info->properties) { + status = device_add_properties(&client->dev, info->properties); + if (status) { + dev_err(&adap->dev, + "Failed to add properties to client %s: %d\n", + client->name, status); + goto out_err; + } + } + status = device_register(&client->dev); if (status) - goto out_err; + goto out_free_props; dev_dbg(&adap->dev, "client [%s] registered with bus id %s\n", client->name, dev_name(&client->dev)); return client; +out_free_props: + if (info->properties) + device_remove_properties(&client->dev); out_err: dev_err(&adap->dev, "Failed to register i2c client %s at 0x%02x (%d)\n", diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 4aa7d244b38a..ec8f866a5656 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -51,6 +51,7 @@ enum i2c_slave_event; typedef int (*i2c_slave_cb_t)(struct i2c_client *, enum i2c_slave_event, u8 *); struct module; +struct property_entry; #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) /* @@ -310,6 +311,7 @@ static inline int i2c_slave_event(struct i2c_client *client, * @archdata: copied into i2c_client.dev.archdata * @of_node: pointer to OpenFirmware device node * @fwnode: device node supplied by the platform firmware + * @properties: additional device properties for the device * @irq: stored in i2c_client.irq * * I2C doesn't actually support hardware probing, although controllers and @@ -331,6 +333,7 @@ struct i2c_board_info { struct dev_archdata *archdata; struct device_node *of_node; struct fwnode_handle *fwnode; + const struct property_entry *properties; int irq; }; -- 2.11.0.483.g087da7b7c-goog
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