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authorLee Jones <lee.jones@linaro.org>2016-11-07 15:47:41 +0300
committerWolfram Sang <wsa@the-dreams.de>2016-11-17 18:10:23 +0300
commitb8a1a4cd5a98a2adf8dfd6902cd98e57d910ee12 (patch)
tree04583b1307471c580849c19d339440c2dc2e8479 /include/linux/i2c.h
parent5f441fcaa3ce54681923475cf0040216d190e646 (diff)
downloadlinux-b8a1a4cd5a98a2adf8dfd6902cd98e57d910ee12.tar.xz
i2c: Provide a temporary .probe_new() call-back type
This will aid the seamless removal of the current probe()'s, more commonly unused than used second parameter. Most I2C drivers can simply switch over to the new interface, others which have DT support can use its own matching instead and others can call i2c_match_id() themselves. This brings I2C's device probe method into line with other similar interfaces in the kernel and prevents the requirement to pass an i2c_device_id table. Suggested-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> [Kieran: fix rebase conflicts and adapt for dev_pm_domain_{attach,detach}] Tested-by: Kieran Bingham <kieran@bingham.xyz> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'include/linux/i2c.h')
-rw-r--r--include/linux/i2c.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 7e00efd6a62f..82cf90945bb8 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -135,7 +135,8 @@ enum i2c_alert_protocol {
* struct i2c_driver - represent an I2C device driver
* @class: What kind of i2c device we instantiate (for detect)
* @attach_adapter: Callback for bus addition (deprecated)
- * @probe: Callback for device binding
+ * @probe: Callback for device binding - soon to be deprecated
+ * @probe_new: New callback for device binding
* @remove: Callback for device unbinding
* @shutdown: Callback for device shutdown
* @alert: Alert callback, for example for the SMBus alert protocol
@@ -178,6 +179,11 @@ struct i2c_driver {
int (*probe)(struct i2c_client *, const struct i2c_device_id *);
int (*remove)(struct i2c_client *);
+ /* New driver model interface to aid the seamless removal of the
+ * current probe()'s, more commonly unused than used second parameter.
+ */
+ int (*probe_new)(struct i2c_client *);
+
/* driver model interfaces that don't relate to enumeration */
void (*shutdown)(struct i2c_client *);