diff mbox

[v2,15/16] fpga: region: add fpga_region_class_find

Message ID 1492697401-11211-16-git-send-email-atull@kernel.org (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Alan Tull April 20, 2017, 2:10 p.m. UTC
Add a function for searching the fpga-region class.  This
will be useful when device tree code is no longer in the
same file that declares the fpga-region class.  Another
step in separating common FPGA region code from device
tree support.

Signed-off-by: Alan Tull <atull@kernel.org>
---
v2: split out from another patch
---
 drivers/fpga/fpga-region.c       | 23 +++++++++++++++--------
 include/linux/fpga/fpga-region.h |  4 ++++
 2 files changed, 19 insertions(+), 8 deletions(-)

Comments

Moritz Fischer May 3, 2017, 3:44 p.m. UTC | #1
On Thu, Apr 20, 2017 at 7:10 AM, Alan Tull <atull@kernel.org> wrote:
> Add a function for searching the fpga-region class.  This
> will be useful when device tree code is no longer in the
> same file that declares the fpga-region class.  Another
> step in separating common FPGA region code from device
> tree support.
>
> Signed-off-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
> ---
> v2: split out from another patch
> ---
>  drivers/fpga/fpga-region.c       | 23 +++++++++++++++--------
>  include/linux/fpga/fpga-region.h |  4 ++++
>  2 files changed, 19 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
> index e2a3fe6..7ffb8c1 100644
> --- a/drivers/fpga/fpga-region.c
> +++ b/drivers/fpga/fpga-region.c
> @@ -30,6 +30,20 @@
>  static DEFINE_IDA(fpga_region_ida);
>  static struct class *fpga_region_class;
>
> +struct fpga_region *fpga_region_class_find(
> +       struct device *start, const void *data,
> +       int (*match)(struct device *, const void *))
> +{
> +       struct device *dev;
> +
> +       dev = class_find_device(fpga_region_class, start, data, match);
> +       if (!dev)
> +               return NULL;
> +
> +       return to_fpga_region(dev);
> +}
> +EXPORT_SYMBOL_GPL(fpga_region_class_find);
> +
>  static const struct of_device_id fpga_region_of_match[] = {
>         { .compatible = "fpga-region", },
>         {},
> @@ -51,14 +65,7 @@ static int fpga_region_of_node_match(struct device *dev, const void *data)
>   */
>  static struct fpga_region *of_fpga_region_find(struct device_node *np)
>  {
> -       struct device *dev;
> -
> -       dev = class_find_device(fpga_region_class, NULL, np,
> -                               fpga_region_of_node_match);
> -       if (!dev)
> -               return NULL;
> -
> -       return to_fpga_region(dev);
> +       return fpga_region_class_find(NULL, np, fpga_region_of_node_match);
>  }
>
>  /**
> diff --git a/include/linux/fpga/fpga-region.h b/include/linux/fpga/fpga-region.h
> index 35e7e09..4966bb2 100644
> --- a/include/linux/fpga/fpga-region.h
> +++ b/include/linux/fpga/fpga-region.h
> @@ -28,6 +28,10 @@ struct fpga_region {
>
>  #define to_fpga_region(d) container_of(d, struct fpga_region, dev)
>
> +struct fpga_region *fpga_region_class_find(
> +       struct device *start, const void *data,
> +       int (*match)(struct device *, const void *));
> +
>  int fpga_region_program_fpga(struct fpga_region *region,
>                              struct fpga_image_info *image_info);
>
> --
> 2.7.4
>
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Alan Tull May 3, 2017, 8:08 p.m. UTC | #2
On Wed, May 3, 2017 at 10:44 AM, Moritz Fischer <mdf@kernel.org> wrote:
> On Thu, Apr 20, 2017 at 7:10 AM, Alan Tull <atull@kernel.org> wrote:
>> Add a function for searching the fpga-region class.  This
>> will be useful when device tree code is no longer in the
>> same file that declares the fpga-region class.  Another
>> step in separating common FPGA region code from device
>> tree support.
>>
>> Signed-off-by: Alan Tull <atull@kernel.org>
> Acked-by: Moritz Fischer <mdf@kernel.org>

Hi Moritz,

Thanks!

Alan

>> ---
>> v2: split out from another patch
>> ---
>>  drivers/fpga/fpga-region.c       | 23 +++++++++++++++--------
>>  include/linux/fpga/fpga-region.h |  4 ++++
>>  2 files changed, 19 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
>> index e2a3fe6..7ffb8c1 100644
>> --- a/drivers/fpga/fpga-region.c
>> +++ b/drivers/fpga/fpga-region.c
>> @@ -30,6 +30,20 @@
>>  static DEFINE_IDA(fpga_region_ida);
>>  static struct class *fpga_region_class;
>>
>> +struct fpga_region *fpga_region_class_find(
>> +       struct device *start, const void *data,
>> +       int (*match)(struct device *, const void *))
>> +{
>> +       struct device *dev;
>> +
>> +       dev = class_find_device(fpga_region_class, start, data, match);
>> +       if (!dev)
>> +               return NULL;
>> +
>> +       return to_fpga_region(dev);
>> +}
>> +EXPORT_SYMBOL_GPL(fpga_region_class_find);
>> +
>>  static const struct of_device_id fpga_region_of_match[] = {
>>         { .compatible = "fpga-region", },
>>         {},
>> @@ -51,14 +65,7 @@ static int fpga_region_of_node_match(struct device *dev, const void *data)
>>   */
>>  static struct fpga_region *of_fpga_region_find(struct device_node *np)
>>  {
>> -       struct device *dev;
>> -
>> -       dev = class_find_device(fpga_region_class, NULL, np,
>> -                               fpga_region_of_node_match);
>> -       if (!dev)
>> -               return NULL;
>> -
>> -       return to_fpga_region(dev);
>> +       return fpga_region_class_find(NULL, np, fpga_region_of_node_match);
>>  }
>>
>>  /**
>> diff --git a/include/linux/fpga/fpga-region.h b/include/linux/fpga/fpga-region.h
>> index 35e7e09..4966bb2 100644
>> --- a/include/linux/fpga/fpga-region.h
>> +++ b/include/linux/fpga/fpga-region.h
>> @@ -28,6 +28,10 @@ struct fpga_region {
>>
>>  #define to_fpga_region(d) container_of(d, struct fpga_region, dev)
>>
>> +struct fpga_region *fpga_region_class_find(
>> +       struct device *start, const void *data,
>> +       int (*match)(struct device *, const void *));
>> +
>>  int fpga_region_program_fpga(struct fpga_region *region,
>>                              struct fpga_image_info *image_info);
>>
>> --
>> 2.7.4
>>
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diff mbox

Patch

diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
index e2a3fe6..7ffb8c1 100644
--- a/drivers/fpga/fpga-region.c
+++ b/drivers/fpga/fpga-region.c
@@ -30,6 +30,20 @@ 
 static DEFINE_IDA(fpga_region_ida);
 static struct class *fpga_region_class;
 
+struct fpga_region *fpga_region_class_find(
+	struct device *start, const void *data,
+	int (*match)(struct device *, const void *))
+{
+	struct device *dev;
+
+	dev = class_find_device(fpga_region_class, start, data, match);
+	if (!dev)
+		return NULL;
+
+	return to_fpga_region(dev);
+}
+EXPORT_SYMBOL_GPL(fpga_region_class_find);
+
 static const struct of_device_id fpga_region_of_match[] = {
 	{ .compatible = "fpga-region", },
 	{},
@@ -51,14 +65,7 @@  static int fpga_region_of_node_match(struct device *dev, const void *data)
  */
 static struct fpga_region *of_fpga_region_find(struct device_node *np)
 {
-	struct device *dev;
-
-	dev = class_find_device(fpga_region_class, NULL, np,
-				fpga_region_of_node_match);
-	if (!dev)
-		return NULL;
-
-	return to_fpga_region(dev);
+	return fpga_region_class_find(NULL, np, fpga_region_of_node_match);
 }
 
 /**
diff --git a/include/linux/fpga/fpga-region.h b/include/linux/fpga/fpga-region.h
index 35e7e09..4966bb2 100644
--- a/include/linux/fpga/fpga-region.h
+++ b/include/linux/fpga/fpga-region.h
@@ -28,6 +28,10 @@  struct fpga_region {
 
 #define to_fpga_region(d) container_of(d, struct fpga_region, dev)
 
+struct fpga_region *fpga_region_class_find(
+	struct device *start, const void *data,
+	int (*match)(struct device *, const void *));
+
 int fpga_region_program_fpga(struct fpga_region *region,
 			     struct fpga_image_info *image_info);