Hi,
On 16-02-18 12:00, Andy Shevchenko wrote:
On Fri, Feb 16, 2018 at 12:47 PM, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
From: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Several frameworks - clk, gpio, phy, pmw, etc. - maintain
lookup tables for describing connections and provide custom
API for handling them. This introduces a single generic
lookup table and API for the connections.
The motivation for this commit is centralizing the
connection lookup, but the goal is to ultimately extract the
connection descriptions also from firmware by using the
fwnode_graph_* functions and other mechanisms that are
available.
+void *__device_find_connection(struct device *dev, const char *con_id,
+ void *data,
+ void *(*match)(struct devcon *con, int ep,
+ void *data))
Perhaps swap them, since data is dependent parameter to match.
The pattern of having the data before the callback function is not
unheard of in the kernel. Changing this now feels like needless
churn, but if there is a strong preference for this then we can
fix this for v2.
Heikki, do you want me to take care of minor changes like this for v2?
And put match function on one line disregard 80 character limit?
I think that breaking the 80 chars limit here would make sense, yes.
Any other opinions on this?
+/**
+ * struct devcon - Device Connection Descriptor
+ * @endpoint: The names of the two devices connected together
+ * @id: Unique identifier for the connection
+ */
+struct devcon {
+ const char *endpoint[2];
+ const char *id;
+ struct list_head list;
+};
+
+void *__device_find_connection(struct device *dev, const char *con_id,
+ void *data,
+ void *(*match)(struct devcon *con, int ep,
+ void *data));
Ditto.
+
+struct device *device_find_connection(struct device *dev, const char *con_id);
+
+#define DEVCON(_ep0, _ep1, _id) { { _ep0, _ep1 }, _id, }
Please use (struct devcon) here to make it possible to do like
struct devcon foo;
> foo = DEVCON(...);
Good idea, will fix for v2.
Regards,
Hans
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