[PATCH v1 1/4] media: ipu3-cio2: Don't dereference fwnode handle

[PATCH v1 1/4] media: ipu3-cio2: Don't dereference fwnode handle

[Andy Shevchenko]

Use acpi_fwnode_handle() instead of dereferencing an fwnode handle directly,
which is a better coding practice.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/media/pci/intel/ipu3/cio2-bridge.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
index df6c94da2f6a..18974a72e94a 100644
--- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
+++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
@@ -263,7 +263,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 				      struct cio2_bridge *bridge,
 				      struct pci_dev *cio2)
 {
-	struct fwnode_handle *fwnode;
+	struct fwnode_handle *fwnode, *primary;
 	struct cio2_sensor *sensor;
 	struct acpi_device *adev;
 	acpi_status status;
@@ -322,7 +322,9 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 		}
 
 		sensor->adev = acpi_dev_get(adev);
-		adev->fwnode.secondary = fwnode;
+
+		primary = acpi_fwnode_handle(adev);
+		primary->secondary = fwnode;
 
 		cio2_bridge_instantiate_vcm_i2c_client(sensor);
 
-- 
2.35.1

[PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Andy Shevchenko]

The currently used software_node_register_nodes() is going to
be removed. Prepare driver by switchich to new API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/media/pci/intel/ipu3/cio2-bridge.c | 21 ++++++++++++++++++---
 drivers/media/pci/intel/ipu3/cio2-bridge.h |  5 +++--
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
index 18974a72e94a..dfefe0d8aa95 100644
--- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
+++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
@@ -195,6 +195,19 @@ static void cio2_bridge_init_swnode_names(struct cio2_sensor *sensor)
 		 SWNODE_GRAPH_ENDPOINT_NAME_FMT, 0); /* And endpoint 0 */
 }
 
+static void cio2_bridge_init_swnode_group(struct cio2_sensor *sensor)
+{
+	struct software_node *nodes = sensor->swnodes;
+
+	sensor->group[SWNODE_SENSOR_HID] = &nodes[SWNODE_SENSOR_HID];
+	sensor->group[SWNODE_SENSOR_PORT] = &nodes[SWNODE_SENSOR_PORT];
+	sensor->group[SWNODE_SENSOR_ENDPOINT] = &nodes[SWNODE_SENSOR_ENDPOINT];
+	sensor->group[SWNODE_CIO2_PORT] = &nodes[SWNODE_CIO2_PORT];
+	sensor->group[SWNODE_CIO2_ENDPOINT] = &nodes[SWNODE_CIO2_ENDPOINT];
+	if (sensor->ssdb.vcmtype)
+		sensor->group[SWNODE_VCM] =  &nodes[SWNODE_VCM];
+}
+
 static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
 						  struct cio2_sensor *sensor)
 {
@@ -219,6 +232,8 @@ static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
 	if (sensor->ssdb.vcmtype)
 		nodes[SWNODE_VCM] =
 			NODE_VCM(cio2_vcm_types[sensor->ssdb.vcmtype - 1]);
+
+	cio2_bridge_init_swnode_group(sensor);
 }
 
 static void cio2_bridge_instantiate_vcm_i2c_client(struct cio2_sensor *sensor)
@@ -252,7 +267,7 @@ static void cio2_bridge_unregister_sensors(struct cio2_bridge *bridge)
 
 	for (i = 0; i < bridge->n_sensors; i++) {
 		sensor = &bridge->sensors[i];
-		software_node_unregister_nodes(sensor->swnodes);
+		software_node_unregister_node_group(sensor->group);
 		ACPI_FREE(sensor->pld);
 		acpi_dev_put(sensor->adev);
 		i2c_unregister_device(sensor->vcm_i2c_client);
@@ -310,7 +325,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 		cio2_bridge_create_fwnode_properties(sensor, bridge, cfg);
 		cio2_bridge_create_connection_swnodes(bridge, sensor);
 
-		ret = software_node_register_nodes(sensor->swnodes);
+		ret = software_node_register_node_group(sensor->group);
 		if (ret)
 			goto err_free_pld;
 
@@ -337,7 +352,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 	return 0;
 
 err_free_swnodes:
-	software_node_unregister_nodes(sensor->swnodes);
+	software_node_unregister_node_group(sensor->group);
 err_free_pld:
 	ACPI_FREE(sensor->pld);
 err_put_adev:
diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.h b/drivers/media/pci/intel/ipu3/cio2-bridge.h
index 4418cbd08208..b93b749c65bd 100644
--- a/drivers/media/pci/intel/ipu3/cio2-bridge.h
+++ b/drivers/media/pci/intel/ipu3/cio2-bridge.h
@@ -117,8 +117,9 @@ struct cio2_sensor {
 	struct acpi_device *adev;
 	struct i2c_client *vcm_i2c_client;
 
-	/* SWNODE_COUNT + 1 for terminating empty node */
-	struct software_node swnodes[SWNODE_COUNT + 1];
+	/* SWNODE_COUNT + 1 for terminating NULL */
+	const struct software_node *group[SWNODE_COUNT + 1];
+	struct software_node swnodes[SWNODE_COUNT];
 	struct cio2_node_names node_names;
 
 	struct cio2_sensor_ssdb ssdb;
-- 
2.35.1

Re: [PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Dan Scally]

Hi Andy

On 18/11/2022 18:56, Andy Shevchenko wrote:
> The currently used software_node_register_nodes() is going to
> be removed. Prepare driver by switchich to new API.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---


Also looks good to me:

Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>

>   drivers/media/pci/intel/ipu3/cio2-bridge.c | 21 ++++++++++++++++++---
>   drivers/media/pci/intel/ipu3/cio2-bridge.h |  5 +++--
>   2 files changed, 21 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> index 18974a72e94a..dfefe0d8aa95 100644
> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> @@ -195,6 +195,19 @@ static void cio2_bridge_init_swnode_names(struct cio2_sensor *sensor)
>   		 SWNODE_GRAPH_ENDPOINT_NAME_FMT, 0); /* And endpoint 0 */
>   }
>   
> +static void cio2_bridge_init_swnode_group(struct cio2_sensor *sensor)
> +{
> +	struct software_node *nodes = sensor->swnodes;
> +
> +	sensor->group[SWNODE_SENSOR_HID] = &nodes[SWNODE_SENSOR_HID];
> +	sensor->group[SWNODE_SENSOR_PORT] = &nodes[SWNODE_SENSOR_PORT];
> +	sensor->group[SWNODE_SENSOR_ENDPOINT] = &nodes[SWNODE_SENSOR_ENDPOINT];
> +	sensor->group[SWNODE_CIO2_PORT] = &nodes[SWNODE_CIO2_PORT];
> +	sensor->group[SWNODE_CIO2_ENDPOINT] = &nodes[SWNODE_CIO2_ENDPOINT];
> +	if (sensor->ssdb.vcmtype)
> +		sensor->group[SWNODE_VCM] =  &nodes[SWNODE_VCM];
> +}
> +
>   static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
>   						  struct cio2_sensor *sensor)
>   {
> @@ -219,6 +232,8 @@ static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
>   	if (sensor->ssdb.vcmtype)
>   		nodes[SWNODE_VCM] =
>   			NODE_VCM(cio2_vcm_types[sensor->ssdb.vcmtype - 1]);
> +
> +	cio2_bridge_init_swnode_group(sensor);
>   }
>   
>   static void cio2_bridge_instantiate_vcm_i2c_client(struct cio2_sensor *sensor)
> @@ -252,7 +267,7 @@ static void cio2_bridge_unregister_sensors(struct cio2_bridge *bridge)
>   
>   	for (i = 0; i < bridge->n_sensors; i++) {
>   		sensor = &bridge->sensors[i];
> -		software_node_unregister_nodes(sensor->swnodes);
> +		software_node_unregister_node_group(sensor->group);
>   		ACPI_FREE(sensor->pld);
>   		acpi_dev_put(sensor->adev);
>   		i2c_unregister_device(sensor->vcm_i2c_client);
> @@ -310,7 +325,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>   		cio2_bridge_create_fwnode_properties(sensor, bridge, cfg);
>   		cio2_bridge_create_connection_swnodes(bridge, sensor);
>   
> -		ret = software_node_register_nodes(sensor->swnodes);
> +		ret = software_node_register_node_group(sensor->group);
>   		if (ret)
>   			goto err_free_pld;
>   
> @@ -337,7 +352,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>   	return 0;
>   
>   err_free_swnodes:
> -	software_node_unregister_nodes(sensor->swnodes);
> +	software_node_unregister_node_group(sensor->group);
>   err_free_pld:
>   	ACPI_FREE(sensor->pld);
>   err_put_adev:
> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.h b/drivers/media/pci/intel/ipu3/cio2-bridge.h
> index 4418cbd08208..b93b749c65bd 100644
> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.h
> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.h
> @@ -117,8 +117,9 @@ struct cio2_sensor {
>   	struct acpi_device *adev;
>   	struct i2c_client *vcm_i2c_client;
>   
> -	/* SWNODE_COUNT + 1 for terminating empty node */
> -	struct software_node swnodes[SWNODE_COUNT + 1];
> +	/* SWNODE_COUNT + 1 for terminating NULL */
> +	const struct software_node *group[SWNODE_COUNT + 1];
> +	struct software_node swnodes[SWNODE_COUNT];
>   	struct cio2_node_names node_names;
>   
>   	struct cio2_sensor_ssdb ssdb;

Re: [PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Hans de Goede]

Hi Dan,

On 11/21/22 11:19, Dan Scally wrote:
> Hi Andy
> 
> On 18/11/2022 18:56, Andy Shevchenko wrote:
>> The currently used software_node_register_nodes() is going to
>> be removed. Prepare driver by switchich to new API.
>>
>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>> ---
> 
> 
> Also looks good to me:
> 
> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>

Any chance you can also give this series a test run on an IPU3 device to
ensure that it does not cause regressions ?

Regards,

Hans



> 
>>   drivers/media/pci/intel/ipu3/cio2-bridge.c | 21 ++++++++++++++++++---
>>   drivers/media/pci/intel/ipu3/cio2-bridge.h |  5 +++--
>>   2 files changed, 21 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
>> index 18974a72e94a..dfefe0d8aa95 100644
>> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
>> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
>> @@ -195,6 +195,19 @@ static void cio2_bridge_init_swnode_names(struct cio2_sensor *sensor)
>>            SWNODE_GRAPH_ENDPOINT_NAME_FMT, 0); /* And endpoint 0 */
>>   }
>>   +static void cio2_bridge_init_swnode_group(struct cio2_sensor *sensor)
>> +{
>> +    struct software_node *nodes = sensor->swnodes;
>> +
>> +    sensor->group[SWNODE_SENSOR_HID] = &nodes[SWNODE_SENSOR_HID];
>> +    sensor->group[SWNODE_SENSOR_PORT] = &nodes[SWNODE_SENSOR_PORT];
>> +    sensor->group[SWNODE_SENSOR_ENDPOINT] = &nodes[SWNODE_SENSOR_ENDPOINT];
>> +    sensor->group[SWNODE_CIO2_PORT] = &nodes[SWNODE_CIO2_PORT];
>> +    sensor->group[SWNODE_CIO2_ENDPOINT] = &nodes[SWNODE_CIO2_ENDPOINT];
>> +    if (sensor->ssdb.vcmtype)
>> +        sensor->group[SWNODE_VCM] =  &nodes[SWNODE_VCM];
>> +}
>> +
>>   static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
>>                             struct cio2_sensor *sensor)
>>   {
>> @@ -219,6 +232,8 @@ static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
>>       if (sensor->ssdb.vcmtype)
>>           nodes[SWNODE_VCM] =
>>               NODE_VCM(cio2_vcm_types[sensor->ssdb.vcmtype - 1]);
>> +
>> +    cio2_bridge_init_swnode_group(sensor);
>>   }
>>     static void cio2_bridge_instantiate_vcm_i2c_client(struct cio2_sensor *sensor)
>> @@ -252,7 +267,7 @@ static void cio2_bridge_unregister_sensors(struct cio2_bridge *bridge)
>>         for (i = 0; i < bridge->n_sensors; i++) {
>>           sensor = &bridge->sensors[i];
>> -        software_node_unregister_nodes(sensor->swnodes);
>> +        software_node_unregister_node_group(sensor->group);
>>           ACPI_FREE(sensor->pld);
>>           acpi_dev_put(sensor->adev);
>>           i2c_unregister_device(sensor->vcm_i2c_client);
>> @@ -310,7 +325,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>>           cio2_bridge_create_fwnode_properties(sensor, bridge, cfg);
>>           cio2_bridge_create_connection_swnodes(bridge, sensor);
>>   -        ret = software_node_register_nodes(sensor->swnodes);
>> +        ret = software_node_register_node_group(sensor->group);
>>           if (ret)
>>               goto err_free_pld;
>>   @@ -337,7 +352,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>>       return 0;
>>     err_free_swnodes:
>> -    software_node_unregister_nodes(sensor->swnodes);
>> +    software_node_unregister_node_group(sensor->group);
>>   err_free_pld:
>>       ACPI_FREE(sensor->pld);
>>   err_put_adev:
>> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.h b/drivers/media/pci/intel/ipu3/cio2-bridge.h
>> index 4418cbd08208..b93b749c65bd 100644
>> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.h
>> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.h
>> @@ -117,8 +117,9 @@ struct cio2_sensor {
>>       struct acpi_device *adev;
>>       struct i2c_client *vcm_i2c_client;
>>   -    /* SWNODE_COUNT + 1 for terminating empty node */
>> -    struct software_node swnodes[SWNODE_COUNT + 1];
>> +    /* SWNODE_COUNT + 1 for terminating NULL */
>> +    const struct software_node *group[SWNODE_COUNT + 1];
>> +    struct software_node swnodes[SWNODE_COUNT];
>>       struct cio2_node_names node_names;
>>         struct cio2_sensor_ssdb ssdb;
> 

Re: [PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Daniel Scally]

Morning

On 21/11/2022 10:22, Hans de Goede wrote:
> Hi Dan,
>
> On 11/21/22 11:19, Dan Scally wrote:
>> Hi Andy
>>
>> On 18/11/2022 18:56, Andy Shevchenko wrote:
>>> The currently used software_node_register_nodes() is going to
>>> be removed. Prepare driver by switchich to new API.
>>>
>>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>>> ---
>>
>> Also looks good to me:
>>
>> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
> Any chance you can also give this series a test run on an IPU3 device to
> ensure that it does not cause regressions ?


Sure, wait please...

>
> Regards,
>
> Hans
>
>
>
>>>   drivers/media/pci/intel/ipu3/cio2-bridge.c | 21 ++++++++++++++++++---
>>>   drivers/media/pci/intel/ipu3/cio2-bridge.h |  5 +++--
>>>   2 files changed, 21 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
>>> index 18974a72e94a..dfefe0d8aa95 100644
>>> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
>>> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
>>> @@ -195,6 +195,19 @@ static void cio2_bridge_init_swnode_names(struct cio2_sensor *sensor)
>>>            SWNODE_GRAPH_ENDPOINT_NAME_FMT, 0); /* And endpoint 0 */
>>>   }
>>>   +static void cio2_bridge_init_swnode_group(struct cio2_sensor *sensor)
>>> +{
>>> +    struct software_node *nodes = sensor->swnodes;
>>> +
>>> +    sensor->group[SWNODE_SENSOR_HID] = &nodes[SWNODE_SENSOR_HID];
>>> +    sensor->group[SWNODE_SENSOR_PORT] = &nodes[SWNODE_SENSOR_PORT];
>>> +    sensor->group[SWNODE_SENSOR_ENDPOINT] = &nodes[SWNODE_SENSOR_ENDPOINT];
>>> +    sensor->group[SWNODE_CIO2_PORT] = &nodes[SWNODE_CIO2_PORT];
>>> +    sensor->group[SWNODE_CIO2_ENDPOINT] = &nodes[SWNODE_CIO2_ENDPOINT];
>>> +    if (sensor->ssdb.vcmtype)
>>> +        sensor->group[SWNODE_VCM] =  &nodes[SWNODE_VCM];
>>> +}
>>> +
>>>   static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
>>>                             struct cio2_sensor *sensor)
>>>   {
>>> @@ -219,6 +232,8 @@ static void cio2_bridge_create_connection_swnodes(struct cio2_bridge *bridge,
>>>       if (sensor->ssdb.vcmtype)
>>>           nodes[SWNODE_VCM] =
>>>               NODE_VCM(cio2_vcm_types[sensor->ssdb.vcmtype - 1]);
>>> +
>>> +    cio2_bridge_init_swnode_group(sensor);
>>>   }
>>>     static void cio2_bridge_instantiate_vcm_i2c_client(struct cio2_sensor *sensor)
>>> @@ -252,7 +267,7 @@ static void cio2_bridge_unregister_sensors(struct cio2_bridge *bridge)
>>>         for (i = 0; i < bridge->n_sensors; i++) {
>>>           sensor = &bridge->sensors[i];
>>> -        software_node_unregister_nodes(sensor->swnodes);
>>> +        software_node_unregister_node_group(sensor->group);
>>>           ACPI_FREE(sensor->pld);
>>>           acpi_dev_put(sensor->adev);
>>>           i2c_unregister_device(sensor->vcm_i2c_client);
>>> @@ -310,7 +325,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>>>           cio2_bridge_create_fwnode_properties(sensor, bridge, cfg);
>>>           cio2_bridge_create_connection_swnodes(bridge, sensor);
>>>   -        ret = software_node_register_nodes(sensor->swnodes);
>>> +        ret = software_node_register_node_group(sensor->group);
>>>           if (ret)
>>>               goto err_free_pld;
>>>   @@ -337,7 +352,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>>>       return 0;
>>>     err_free_swnodes:
>>> -    software_node_unregister_nodes(sensor->swnodes);
>>> +    software_node_unregister_node_group(sensor->group);
>>>   err_free_pld:
>>>       ACPI_FREE(sensor->pld);
>>>   err_put_adev:
>>> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.h b/drivers/media/pci/intel/ipu3/cio2-bridge.h
>>> index 4418cbd08208..b93b749c65bd 100644
>>> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.h
>>> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.h
>>> @@ -117,8 +117,9 @@ struct cio2_sensor {
>>>       struct acpi_device *adev;
>>>       struct i2c_client *vcm_i2c_client;
>>>   -    /* SWNODE_COUNT + 1 for terminating empty node */
>>> -    struct software_node swnodes[SWNODE_COUNT + 1];
>>> +    /* SWNODE_COUNT + 1 for terminating NULL */
>>> +    const struct software_node *group[SWNODE_COUNT + 1];
>>> +    struct software_node swnodes[SWNODE_COUNT];
>>>       struct cio2_node_names node_names;
>>>         struct cio2_sensor_ssdb ssdb;

Re: [PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Andy Shevchenko]

On Mon, Nov 21, 2022 at 11:22:17AM +0100, Hans de Goede wrote:
> On 11/21/22 11:19, Dan Scally wrote:
> > On 18/11/2022 18:56, Andy Shevchenko wrote:
> >> The currently used software_node_register_nodes() is going to
> >> be removed. Prepare driver by switchich to new API.

> > Also looks good to me:
> > 
> > Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>

Thank you!

> Any chance you can also give this series a test run on an IPU3 device to
> ensure that it does not cause regressions ?

Yes, it would be really appreciated!

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Dan Scally]

Hi Andy and Hans

On 21/11/2022 10:27, Andy Shevchenko wrote:
> On Mon, Nov 21, 2022 at 11:22:17AM +0100, Hans de Goede wrote:
>> On 11/21/22 11:19, Dan Scally wrote:
>>> On 18/11/2022 18:56, Andy Shevchenko wrote:
>>>> The currently used software_node_register_nodes() is going to
>>>> be removed. Prepare driver by switchich to new API.
>>> Also looks good to me:
>>>
>>> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
> Thank you!
>
>> Any chance you can also give this series a test run on an IPU3 device to
>> ensure that it does not cause regressions ?
> Yes, it would be really appreciated!

All seems fine (including the kunit test) - you can add


Tested-by: Daniel Scally <dan.scally@ideasonboard.com>


to the series

Re: [PATCH v1 2/4] media: ipu3-cio2: Convert to use software_node_register_node_group()

[Hans de Goede]

Hi,

On 11/21/22 15:32, Dan Scally wrote:
> Hi Andy and Hans
> 
> On 21/11/2022 10:27, Andy Shevchenko wrote:
>> On Mon, Nov 21, 2022 at 11:22:17AM +0100, Hans de Goede wrote:
>>> On 11/21/22 11:19, Dan Scally wrote:
>>>> On 18/11/2022 18:56, Andy Shevchenko wrote:
>>>>> The currently used software_node_register_nodes() is going to
>>>>> be removed. Prepare driver by switchich to new API.
>>>> Also looks good to me:
>>>>
>>>> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
>> Thank you!
>>
>>> Any chance you can also give this series a test run on an IPU3 device to
>>> ensure that it does not cause regressions ?
>> Yes, it would be really appreciated!
> 
> All seems fine (including the kunit test) - you can add
> 
> 
> Tested-by: Daniel Scally <dan.scally@ideasonboard.com>

Great, thank you!

Regards,

Hans

[PATCH v1 3/4] software node: Switch property entry test to new API

[Andy Shevchenko]

Switch property entry test to use software_node_register_node_group() API.
The current one is going to be removed soon.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/base/test/property-entry-test.c | 30 ++++++++++++-------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/drivers/base/test/property-entry-test.c b/drivers/base/test/property-entry-test.c
index 6071d5bc128c..dd2b606d76a3 100644
--- a/drivers/base/test/property-entry-test.c
+++ b/drivers/base/test/property-entry-test.c
@@ -405,20 +405,18 @@ static void pe_test_move_inline_str(struct kunit *test)
 /* Handling of reference properties */
 static void pe_test_reference(struct kunit *test)
 {
-	static const struct software_node nodes[] = {
-		{ .name = "1", },
-		{ .name = "2", },
-		{ }
-	};
+	static const struct software_node node1 = { .name = "1" };
+	static const struct software_node node2 = { .name = "2" };
+	static const struct software_node *group[] = { &node1, &node2, NULL };
 
 	static const struct software_node_ref_args refs[] = {
-		SOFTWARE_NODE_REFERENCE(&nodes[0]),
-		SOFTWARE_NODE_REFERENCE(&nodes[1], 3, 4),
+		SOFTWARE_NODE_REFERENCE(&node1),
+		SOFTWARE_NODE_REFERENCE(&node2, 3, 4),
 	};
 
 	const struct property_entry entries[] = {
-		PROPERTY_ENTRY_REF("ref-1", &nodes[0]),
-		PROPERTY_ENTRY_REF("ref-2", &nodes[1], 1, 2),
+		PROPERTY_ENTRY_REF("ref-1", &node1),
+		PROPERTY_ENTRY_REF("ref-2", &node2, 1, 2),
 		PROPERTY_ENTRY_REF_ARRAY("ref-3", refs),
 		{ }
 	};
@@ -427,7 +425,7 @@ static void pe_test_reference(struct kunit *test)
 	struct fwnode_reference_args ref;
 	int error;
 
-	error = software_node_register_nodes(nodes);
+	error = software_node_register_node_group(group);
 	KUNIT_ASSERT_EQ(test, error, 0);
 
 	node = fwnode_create_software_node(entries, NULL);
@@ -436,7 +434,7 @@ static void pe_test_reference(struct kunit *test)
 	error = fwnode_property_get_reference_args(node, "ref-1", NULL,
 						   0, 0, &ref);
 	KUNIT_ASSERT_EQ(test, error, 0);
-	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[0]);
+	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &node1);
 	KUNIT_EXPECT_EQ(test, ref.nargs, 0U);
 
 	/* wrong index */
@@ -447,7 +445,7 @@ static void pe_test_reference(struct kunit *test)
 	error = fwnode_property_get_reference_args(node, "ref-2", NULL,
 						   1, 0, &ref);
 	KUNIT_ASSERT_EQ(test, error, 0);
-	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]);
+	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &node2);
 	KUNIT_EXPECT_EQ(test, ref.nargs, 1U);
 	KUNIT_EXPECT_EQ(test, ref.args[0], 1LLU);
 
@@ -455,7 +453,7 @@ static void pe_test_reference(struct kunit *test)
 	error = fwnode_property_get_reference_args(node, "ref-2", NULL,
 						   3, 0, &ref);
 	KUNIT_ASSERT_EQ(test, error, 0);
-	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]);
+	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &node2);
 	KUNIT_EXPECT_EQ(test, ref.nargs, 3U);
 	KUNIT_EXPECT_EQ(test, ref.args[0], 1LLU);
 	KUNIT_EXPECT_EQ(test, ref.args[1], 2LLU);
@@ -470,14 +468,14 @@ static void pe_test_reference(struct kunit *test)
 	error = fwnode_property_get_reference_args(node, "ref-3", NULL,
 						   0, 0, &ref);
 	KUNIT_ASSERT_EQ(test, error, 0);
-	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[0]);
+	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &node1);
 	KUNIT_EXPECT_EQ(test, ref.nargs, 0U);
 
 	/* second reference in the array */
 	error = fwnode_property_get_reference_args(node, "ref-3", NULL,
 						   2, 1, &ref);
 	KUNIT_ASSERT_EQ(test, error, 0);
-	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]);
+	KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &node2);
 	KUNIT_EXPECT_EQ(test, ref.nargs, 2U);
 	KUNIT_EXPECT_EQ(test, ref.args[0], 3LLU);
 	KUNIT_EXPECT_EQ(test, ref.args[1], 4LLU);
@@ -488,7 +486,7 @@ static void pe_test_reference(struct kunit *test)
 	KUNIT_EXPECT_NE(test, error, 0);
 
 	fwnode_remove_software_node(node);
-	software_node_unregister_nodes(nodes);
+	software_node_unregister_node_group(group);
 }
 
 static struct kunit_case property_entry_test_cases[] = {
-- 
2.35.1

Re: [PATCH v1 3/4] software node: Switch property entry test to new API

[Greg Kroah-Hartman]

On Fri, Nov 18, 2022 at 08:56:16PM +0200, Andy Shevchenko wrote:
> Switch property entry test to use software_node_register_node_group() API.
> The current one is going to be removed soon.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/base/test/property-entry-test.c | 30 ++++++++++++-------------
>  1 file changed, 14 insertions(+), 16 deletions(-)

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [PATCH v1 3/4] software node: Switch property entry test to new API

[Andy Shevchenko]

On Wed, Nov 23, 2022 at 08:01:56PM +0100, Greg Kroah-Hartman wrote:
> On Fri, Nov 18, 2022 at 08:56:16PM +0200, Andy Shevchenko wrote:
> > Switch property entry test to use software_node_register_node_group() API.
> > The current one is going to be removed soon.

> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thank you! I hope this stays for v2 (which had been on mailing lists for
a few days).

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v1 3/4] software node: Switch property entry test to new API

[Greg Kroah-Hartman]

On Wed, Nov 23, 2022 at 09:07:05PM +0200, Andy Shevchenko wrote:
> On Wed, Nov 23, 2022 at 08:01:56PM +0100, Greg Kroah-Hartman wrote:
> > On Fri, Nov 18, 2022 at 08:56:16PM +0200, Andy Shevchenko wrote:
> > > Switch property entry test to use software_node_register_node_group() API.
> > > The current one is going to be removed soon.
> 
> > Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> 
> Thank you! I hope this stays for v2 (which had been on mailing lists for
> a few days).

Yes, sorry, that's the same there, so it holds for there too.

[PATCH v1 4/4] software node: Remove unused APIs

[Andy Shevchenko]

There are no more users of software_node_register_nodes() and
software_node_unregister_nodes(). Remove them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/base/swnode.c    | 61 ----------------------------------------
 include/linux/property.h |  3 --
 2 files changed, 64 deletions(-)

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 0a482212c7e8..da3c1c2cb9a8 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -819,67 +819,6 @@ swnode_register(const struct software_node *node, struct swnode *parent,
 	return &swnode->fwnode;
 }
 
-/**
- * software_node_register_nodes - Register an array of software nodes
- * @nodes: Zero terminated array of software nodes to be registered
- *
- * Register multiple software nodes at once. If any node in the array
- * has its .parent pointer set (which can only be to another software_node),
- * then its parent **must** have been registered before it is; either outside
- * of this function or by ordering the array such that parent comes before
- * child.
- */
-int software_node_register_nodes(const struct software_node *nodes)
-{
-	int ret;
-	int i;
-
-	for (i = 0; nodes[i].name; i++) {
-		const struct software_node *parent = nodes[i].parent;
-
-		if (parent && !software_node_to_swnode(parent)) {
-			ret = -EINVAL;
-			goto err_unregister_nodes;
-		}
-
-		ret = software_node_register(&nodes[i]);
-		if (ret)
-			goto err_unregister_nodes;
-	}
-
-	return 0;
-
-err_unregister_nodes:
-	software_node_unregister_nodes(nodes);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(software_node_register_nodes);
-
-/**
- * software_node_unregister_nodes - Unregister an array of software nodes
- * @nodes: Zero terminated array of software nodes to be unregistered
- *
- * Unregister multiple software nodes at once. If parent pointers are set up
- * in any of the software nodes then the array **must** be ordered such that
- * parents come before their children.
- *
- * NOTE: If you are uncertain whether the array is ordered such that
- * parents will be unregistered before their children, it is wiser to
- * remove the nodes individually, in the correct order (child before
- * parent).
- */
-void software_node_unregister_nodes(const struct software_node *nodes)
-{
-	unsigned int i = 0;
-
-	while (nodes[i].name)
-		i++;
-
-	while (i--)
-		software_node_unregister(&nodes[i]);
-}
-EXPORT_SYMBOL_GPL(software_node_unregister_nodes);
-
 /**
  * software_node_register_node_group - Register a group of software nodes
  * @node_group: NULL terminated array of software node pointers to be registered
diff --git a/include/linux/property.h b/include/linux/property.h
index 5d840299146d..6870abe12dc5 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -492,9 +492,6 @@ const struct software_node *
 software_node_find_by_name(const struct software_node *parent,
 			   const char *name);
 
-int software_node_register_nodes(const struct software_node *nodes);
-void software_node_unregister_nodes(const struct software_node *nodes);
-
 int software_node_register_node_group(const struct software_node **node_group);
 void software_node_unregister_node_group(const struct software_node **node_group);
 
-- 
2.35.1

Re: [PATCH v1 4/4] software node: Remove unused APIs

[Greg Kroah-Hartman]

On Fri, Nov 18, 2022 at 08:56:17PM +0200, Andy Shevchenko wrote:
> There are no more users of software_node_register_nodes() and
> software_node_unregister_nodes(). Remove them.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Re: [PATCH v1 1/4] media: ipu3-cio2: Don't dereference fwnode handle

[Heikki Krogerus]

On Fri, Nov 18, 2022 at 08:56:14PM +0200, Andy Shevchenko wrote:
> Use acpi_fwnode_handle() instead of dereferencing an fwnode handle directly,
> which is a better coding practice.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/media/pci/intel/ipu3/cio2-bridge.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> index df6c94da2f6a..18974a72e94a 100644
> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> @@ -263,7 +263,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>  				      struct cio2_bridge *bridge,
>  				      struct pci_dev *cio2)
>  {
> -	struct fwnode_handle *fwnode;
> +	struct fwnode_handle *fwnode, *primary;
>  	struct cio2_sensor *sensor;
>  	struct acpi_device *adev;
>  	acpi_status status;
> @@ -322,7 +322,9 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>  		}
>  
>  		sensor->adev = acpi_dev_get(adev);
> -		adev->fwnode.secondary = fwnode;
> +
> +		primary = acpi_fwnode_handle(adev);
> +		primary->secondary = fwnode;
>  
>  		cio2_bridge_instantiate_vcm_i2c_client(sensor);
>  

This and also the others look good to me. FWIW, for the series:

Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>

thanks,

-- 
heikki

Re: [PATCH v1 1/4] media: ipu3-cio2: Don't dereference fwnode handle

[Dan Scally]

Hi Andy, sorry for the delay

On 18/11/2022 18:56, Andy Shevchenko wrote:
> Use acpi_fwnode_handle() instead of dereferencing an fwnode handle directly,
> which is a better coding practice.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>   drivers/media/pci/intel/ipu3/cio2-bridge.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> index df6c94da2f6a..18974a72e94a 100644
> --- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
> +++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
> @@ -263,7 +263,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>   				      struct cio2_bridge *bridge,
>   				      struct pci_dev *cio2)
>   {
> -	struct fwnode_handle *fwnode;
> +	struct fwnode_handle *fwnode, *primary;
>   	struct cio2_sensor *sensor;
>   	struct acpi_device *adev;
>   	acpi_status status;
> @@ -322,7 +322,9 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
>   		}
>   
>   		sensor->adev = acpi_dev_get(adev);
> -		adev->fwnode.secondary = fwnode;
> +
> +		primary = acpi_fwnode_handle(adev);
> +		primary->secondary = fwnode;
>   
>   		cio2_bridge_instantiate_vcm_i2c_client(sensor);
>   


LGTM: Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>