| Message ID | ae1707aec1f9d647f88a6c5159ed83009289fcc1.1623201082.git.vilhelm.gray@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Introduce the Counter character device interface | expand |
On Wed, 9 Jun 2021 10:31:26 +0900 William Breathitt Gray <vilhelm.gray@gmail.com> wrote: > The Counter subsystem architecture and driver implementations have > changed in order to handle Counter sysfs interactions in a more > consistent way. This patch updates the Generic Counter interface > header file comments to reflect the changes. > > Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> I'd rather see anything in here that isn't just tidy up moved back to the earlier patches. > --- > drivers/counter/counter-core.c | 3 ++ > include/linux/counter.h | 72 +++++++++++++++------------------- > 2 files changed, 35 insertions(+), 40 deletions(-) > > diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c > index e7dd6ea01c8a..407661c6feb0 100644 > --- a/drivers/counter/counter-core.c > +++ b/drivers/counter/counter-core.c > @@ -41,6 +41,9 @@ static struct bus_type counter_bus_type = { > * This function registers a Counter to the system. A sysfs "counter" directory > * will be created and populated with sysfs attributes correlating with the > * Counter Signals, Synapses, and Counts respectively. > + * > + * RETURNS: > + * 0 on success, negative error number on failure. > */ > int counter_register(struct counter_device *const counter) > { > diff --git a/include/linux/counter.h b/include/linux/counter.h > index 567471818ec3..e7fd6d81a929 100644 > --- a/include/linux/counter.h > +++ b/include/linux/counter.h > @@ -188,12 +188,10 @@ struct counter_comp { > > /** > * struct counter_signal - Counter Signal node > - * @id: unique ID used to identify signal > - * @name: device-specific Signal name; ideally, this should match the name > - * as it appears in the datasheet documentation > - * @ext: optional array of Counter Signal extensions > - * @num_ext: number of Counter Signal extensions specified in @ext > - * @priv: optional private data supplied by driver > + * @id: unique ID used to identify the Signal > + * @name: device-specific Signal name > + * @ext: optional array of Signal extensions > + * @num_ext: number of Signal extensions specified in @ext I'm not keen on having a stage between patches where there area things documented that don't exist. (e.g. priv) > */ > struct counter_signal { > int id; > @@ -207,7 +205,7 @@ struct counter_signal { > * struct counter_synapse - Counter Synapse node > * @actions_list: array of available action modes > * @num_actions: number of action modes specified in @actions_list > - * @signal: pointer to associated signal > + * @signal: pointer to the associated Signal > */ > struct counter_synapse { > const enum counter_synapse_action *actions_list; > @@ -218,17 +216,14 @@ struct counter_synapse { > > /** > * struct counter_count - Counter Count node > - * @id: unique ID used to identify Count > - * @name: device-specific Count name; ideally, this should match > - * the name as it appears in the datasheet documentation > - * @function: index of current function mode > - * @functions_list: array available function modes > + * @id: unique ID used to identify the Count > + * @name: device-specific Count name > + * @functions_list: array of available function modes > * @num_functions: number of function modes specified in @functions_list > - * @synapses: array of synapses for initialization > - * @num_synapses: number of synapses specified in @synapses > - * @ext: optional array of Counter Count extensions > - * @num_ext: number of Counter Count extensions specified in @ext > - * @priv: optional private data supplied by driver > + * @synapses: array of Synapses for initialization > + * @num_synapses: number of Synapses specified in @synapses > + * @ext: optional array of Count extensions > + * @num_ext: number of Count extensions specified in @ext > */ > struct counter_count { > int id; > @@ -246,29 +241,26 @@ struct counter_count { > > /** > * struct counter_ops - Callbacks from driver > - * @signal_read: optional read callback for Signal attribute. The read > - * level of the respective Signal should be passed back via > - * the level parameter. > - * @count_read: optional read callback for Count attribute. The read > - * value of the respective Count should be passed back via > - * the val parameter. > - * @count_write: optional write callback for Count attribute. The write > - * value for the respective Count is passed in via the val > + * @signal_read: read callback for Signals. The read level of the > + * respective Signal should be passed back via the level > + * parameter. > + * @count_read: read callback for Counts. The read value of the > + * respective Count should be passed back via the value > * parameter. > - * @function_get: function to get the current count function mode. Returns > - * 0 on success and negative error code on error. The index > - * of the respective Count's returned function mode should > - * be passed back via the function parameter. > - * @function_set: function to set the count function mode. function is the > - * index of the requested function mode from the respective > - * Count's functions_list array. > - * @action_get: function to get the current action mode. Returns 0 on > - * success and negative error code on error. The index of > - * the respective Synapse's returned action mode should be > - * passed back via the action parameter. > - * @action_set: function to set the action mode. action is the index of > - * the requested action mode from the respective Synapse's > - * actions_list array. > + * @count_write: write callback for Counts. The write value for the > + * respective Count is passed in via the value parameter. > + * @function_read: read callback the Count function modes. The read > + * function mode of the respective Count should be passed > + * back via the function parameter. > + * @function_write: write callback for Count function modes. The function > + * mode to write for the respective Count is passed in via > + * the function parameter. > + * @action_read: read callback the Synapse action modes. The read action > + * mode of the respective Synapse should be passed back via > + * the action parameter. > + * @action_write: write callback for Synapse action modes. The action mode > + * to write for the respective Synapse is passed in via the > + * action parameter. > */ > struct counter_ops { > int (*signal_read)(struct counter_device *counter, > @@ -296,7 +288,7 @@ struct counter_ops { > > /** > * struct counter_device - Counter data structure > - * @name: name of the device as it appears in the datasheet > + * @name: name of the device > * @parent: optional parent device providing the counters > * @ops: callbacks from driver > * @signals: array of Signals
diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c index e7dd6ea01c8a..407661c6feb0 100644 --- a/drivers/counter/counter-core.c +++ b/drivers/counter/counter-core.c @@ -41,6 +41,9 @@ static struct bus_type counter_bus_type = { * This function registers a Counter to the system. A sysfs "counter" directory * will be created and populated with sysfs attributes correlating with the * Counter Signals, Synapses, and Counts respectively. + * + * RETURNS: + * 0 on success, negative error number on failure. */ int counter_register(struct counter_device *const counter) { diff --git a/include/linux/counter.h b/include/linux/counter.h index 567471818ec3..e7fd6d81a929 100644 --- a/include/linux/counter.h +++ b/include/linux/counter.h @@ -188,12 +188,10 @@ struct counter_comp { /** * struct counter_signal - Counter Signal node - * @id: unique ID used to identify signal - * @name: device-specific Signal name; ideally, this should match the name - * as it appears in the datasheet documentation - * @ext: optional array of Counter Signal extensions - * @num_ext: number of Counter Signal extensions specified in @ext - * @priv: optional private data supplied by driver + * @id: unique ID used to identify the Signal + * @name: device-specific Signal name + * @ext: optional array of Signal extensions + * @num_ext: number of Signal extensions specified in @ext */ struct counter_signal { int id; @@ -207,7 +205,7 @@ struct counter_signal { * struct counter_synapse - Counter Synapse node * @actions_list: array of available action modes * @num_actions: number of action modes specified in @actions_list - * @signal: pointer to associated signal + * @signal: pointer to the associated Signal */ struct counter_synapse { const enum counter_synapse_action *actions_list; @@ -218,17 +216,14 @@ struct counter_synapse { /** * struct counter_count - Counter Count node - * @id: unique ID used to identify Count - * @name: device-specific Count name; ideally, this should match - * the name as it appears in the datasheet documentation - * @function: index of current function mode - * @functions_list: array available function modes + * @id: unique ID used to identify the Count + * @name: device-specific Count name + * @functions_list: array of available function modes * @num_functions: number of function modes specified in @functions_list - * @synapses: array of synapses for initialization - * @num_synapses: number of synapses specified in @synapses - * @ext: optional array of Counter Count extensions - * @num_ext: number of Counter Count extensions specified in @ext - * @priv: optional private data supplied by driver + * @synapses: array of Synapses for initialization + * @num_synapses: number of Synapses specified in @synapses + * @ext: optional array of Count extensions + * @num_ext: number of Count extensions specified in @ext */ struct counter_count { int id; @@ -246,29 +241,26 @@ struct counter_count { /** * struct counter_ops - Callbacks from driver - * @signal_read: optional read callback for Signal attribute. The read - * level of the respective Signal should be passed back via - * the level parameter. - * @count_read: optional read callback for Count attribute. The read - * value of the respective Count should be passed back via - * the val parameter. - * @count_write: optional write callback for Count attribute. The write - * value for the respective Count is passed in via the val + * @signal_read: read callback for Signals. The read level of the + * respective Signal should be passed back via the level + * parameter. + * @count_read: read callback for Counts. The read value of the + * respective Count should be passed back via the value * parameter. - * @function_get: function to get the current count function mode. Returns - * 0 on success and negative error code on error. The index - * of the respective Count's returned function mode should - * be passed back via the function parameter. - * @function_set: function to set the count function mode. function is the - * index of the requested function mode from the respective - * Count's functions_list array. - * @action_get: function to get the current action mode. Returns 0 on - * success and negative error code on error. The index of - * the respective Synapse's returned action mode should be - * passed back via the action parameter. - * @action_set: function to set the action mode. action is the index of - * the requested action mode from the respective Synapse's - * actions_list array. + * @count_write: write callback for Counts. The write value for the + * respective Count is passed in via the value parameter. + * @function_read: read callback the Count function modes. The read + * function mode of the respective Count should be passed + * back via the function parameter. + * @function_write: write callback for Count function modes. The function + * mode to write for the respective Count is passed in via + * the function parameter. + * @action_read: read callback the Synapse action modes. The read action + * mode of the respective Synapse should be passed back via + * the action parameter. + * @action_write: write callback for Synapse action modes. The action mode + * to write for the respective Synapse is passed in via the + * action parameter. */ struct counter_ops { int (*signal_read)(struct counter_device *counter, @@ -296,7 +288,7 @@ struct counter_ops { /** * struct counter_device - Counter data structure - * @name: name of the device as it appears in the datasheet + * @name: name of the device * @parent: optional parent device providing the counters * @ops: callbacks from driver * @signals: array of Signals
The Counter subsystem architecture and driver implementations have changed in order to handle Counter sysfs interactions in a more consistent way. This patch updates the Generic Counter interface header file comments to reflect the changes. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> --- drivers/counter/counter-core.c | 3 ++ include/linux/counter.h | 72 +++++++++++++++------------------- 2 files changed, 35 insertions(+), 40 deletions(-)