diff mbox series

[v5,12/15] media: i2c: rdacm20: Embed 'serializer' field

Message ID 20210616124616.49249-13-jacopo+renesas@jmondi.org
State Accepted
Commit 1524bb765d33a5b999b7af361e1e0fc9068b79d5
Headers show
Series media: gmsl: Reliability improvements | expand

Commit Message

Jacopo Mondi June 16, 2021, 12:46 p.m. UTC
There's no reason to allocate dynamically the 'serializer' field in
the driver structure.

Embed the field and adjust all its users in the driver.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/i2c/rdacm20.c | 36 +++++++++++++++---------------------
 1 file changed, 15 insertions(+), 21 deletions(-)

Comments

Laurent Pinchart June 17, 2021, 12:14 a.m. UTC | #1
Hi Jacopo,

Thank you for the patch.

This should be moved before 11/15 to avoid a bisection breakage (or
11/15 should be fixed, and this patch updated accordingly).

On Wed, Jun 16, 2021 at 02:46:13PM +0200, Jacopo Mondi wrote:
> There's no reason to allocate dynamically the 'serializer' field in

> the driver structure.

> 

> Embed the field and adjust all its users in the driver.

> 

> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---

>  drivers/media/i2c/rdacm20.c | 36 +++++++++++++++---------------------

>  1 file changed, 15 insertions(+), 21 deletions(-)

> 

> diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c

> index 5e0314a2b1ca..029af8fd7485 100644

> --- a/drivers/media/i2c/rdacm20.c

> +++ b/drivers/media/i2c/rdacm20.c

> @@ -312,7 +312,7 @@ static const struct ov10635_reg {

>  

>  struct rdacm20_device {

>  	struct device			*dev;

> -	struct max9271_device		*serializer;

> +	struct max9271_device		serializer;

>  	struct i2c_client		*sensor;

>  	struct v4l2_subdev		sd;

>  	struct media_pad		pad;

> @@ -399,7 +399,7 @@ static int rdacm20_s_stream(struct v4l2_subdev *sd, int enable)

>  {

>  	struct rdacm20_device *dev = sd_to_rdacm20(sd);

>  

> -	return max9271_set_serial_link(dev->serializer, enable);

> +	return max9271_set_serial_link(&dev->serializer, enable);

>  }

>  

>  static int rdacm20_enum_mbus_code(struct v4l2_subdev *sd,

> @@ -455,10 +455,10 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

>  	unsigned int retry = 3;

>  	int ret;

>  

> -	max9271_wake_up(dev->serializer);

> +	max9271_wake_up(&dev->serializer);

>  

>  	/* Serial link disabled during config as it needs a valid pixel clock. */

> -	ret = max9271_set_serial_link(dev->serializer, false);

> +	ret = max9271_set_serial_link(&dev->serializer, false);

>  	if (ret)

>  		return ret;

>  

> @@ -466,35 +466,35 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

>  	 *  Ensure that we have a good link configuration before attempting to

>  	 *  identify the device.

>  	 */

> -	max9271_configure_i2c(dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

> -					       MAX9271_I2CSLVTO_1024US |

> -					       MAX9271_I2CMSTBT_105KBPS);

> +	max9271_configure_i2c(&dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

> +						MAX9271_I2CSLVTO_1024US |

> +						MAX9271_I2CMSTBT_105KBPS);

>  

> -	max9271_configure_gmsl_link(dev->serializer);

> +	max9271_configure_gmsl_link(&dev->serializer);

>  

> -	ret = max9271_verify_id(dev->serializer);

> +	ret = max9271_verify_id(&dev->serializer);

>  	if (ret < 0)

>  		return ret;

>  

> -	ret = max9271_set_address(dev->serializer, dev->addrs[0]);

> +	ret = max9271_set_address(&dev->serializer, dev->addrs[0]);

>  	if (ret < 0)

>  		return ret;

> -	dev->serializer->client->addr = dev->addrs[0];

> +	dev->serializer.client->addr = dev->addrs[0];

>  

>  	/*

>  	 * Reset the sensor by cycling the OV10635 reset signal connected to the

>  	 * MAX9271 GPIO1 and verify communication with the OV10635.

>  	 */

> -	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);

> +	ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>  	if (ret)

>  		return ret;

>  

> -	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);

> +	ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>  	if (ret)

>  		return ret;

>  	usleep_range(10000, 15000);

>  

> -	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);

> +	ret = max9271_set_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>  	if (ret)

>  		return ret;

>  	usleep_range(10000, 15000);

> @@ -564,13 +564,7 @@ static int rdacm20_probe(struct i2c_client *client)

>  	if (!dev)

>  		return -ENOMEM;

>  	dev->dev = &client->dev;

> -

> -	dev->serializer = devm_kzalloc(&client->dev, sizeof(*dev->serializer),

> -				       GFP_KERNEL);

> -	if (!dev->serializer)

> -		return -ENOMEM;

> -

> -	dev->serializer->client = client;

> +	dev->serializer.client = client;

>  

>  	ret = of_property_read_u32_array(client->dev.of_node, "reg",

>  					 dev->addrs, 2);


-- 
Regards,

Laurent Pinchart
Hans Verkuil June 17, 2021, 6:18 a.m. UTC | #2
On 17/06/2021 02:14, Laurent Pinchart wrote:
> Hi Jacopo,

> 

> Thank you for the patch.

> 

> This should be moved before 11/15 to avoid a bisection breakage (or

> 11/15 should be fixed, and this patch updated accordingly).


Good catch!

Jacopo, I dropped the PR I made. It you just want to swap patch 11 and 12,
then I can do that, if you want more extensive changes, then I need a v6.

Let me know what you want.

	Hans

> 

> On Wed, Jun 16, 2021 at 02:46:13PM +0200, Jacopo Mondi wrote:

>> There's no reason to allocate dynamically the 'serializer' field in

>> the driver structure.

>>

>> Embed the field and adjust all its users in the driver.

>>

>> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

>> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

>> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

>> ---

>>  drivers/media/i2c/rdacm20.c | 36 +++++++++++++++---------------------

>>  1 file changed, 15 insertions(+), 21 deletions(-)

>>

>> diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c

>> index 5e0314a2b1ca..029af8fd7485 100644

>> --- a/drivers/media/i2c/rdacm20.c

>> +++ b/drivers/media/i2c/rdacm20.c

>> @@ -312,7 +312,7 @@ static const struct ov10635_reg {

>>  

>>  struct rdacm20_device {

>>  	struct device			*dev;

>> -	struct max9271_device		*serializer;

>> +	struct max9271_device		serializer;

>>  	struct i2c_client		*sensor;

>>  	struct v4l2_subdev		sd;

>>  	struct media_pad		pad;

>> @@ -399,7 +399,7 @@ static int rdacm20_s_stream(struct v4l2_subdev *sd, int enable)

>>  {

>>  	struct rdacm20_device *dev = sd_to_rdacm20(sd);

>>  

>> -	return max9271_set_serial_link(dev->serializer, enable);

>> +	return max9271_set_serial_link(&dev->serializer, enable);

>>  }

>>  

>>  static int rdacm20_enum_mbus_code(struct v4l2_subdev *sd,

>> @@ -455,10 +455,10 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

>>  	unsigned int retry = 3;

>>  	int ret;

>>  

>> -	max9271_wake_up(dev->serializer);

>> +	max9271_wake_up(&dev->serializer);

>>  

>>  	/* Serial link disabled during config as it needs a valid pixel clock. */

>> -	ret = max9271_set_serial_link(dev->serializer, false);

>> +	ret = max9271_set_serial_link(&dev->serializer, false);

>>  	if (ret)

>>  		return ret;

>>  

>> @@ -466,35 +466,35 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

>>  	 *  Ensure that we have a good link configuration before attempting to

>>  	 *  identify the device.

>>  	 */

>> -	max9271_configure_i2c(dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

>> -					       MAX9271_I2CSLVTO_1024US |

>> -					       MAX9271_I2CMSTBT_105KBPS);

>> +	max9271_configure_i2c(&dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

>> +						MAX9271_I2CSLVTO_1024US |

>> +						MAX9271_I2CMSTBT_105KBPS);

>>  

>> -	max9271_configure_gmsl_link(dev->serializer);

>> +	max9271_configure_gmsl_link(&dev->serializer);

>>  

>> -	ret = max9271_verify_id(dev->serializer);

>> +	ret = max9271_verify_id(&dev->serializer);

>>  	if (ret < 0)

>>  		return ret;

>>  

>> -	ret = max9271_set_address(dev->serializer, dev->addrs[0]);

>> +	ret = max9271_set_address(&dev->serializer, dev->addrs[0]);

>>  	if (ret < 0)

>>  		return ret;

>> -	dev->serializer->client->addr = dev->addrs[0];

>> +	dev->serializer.client->addr = dev->addrs[0];

>>  

>>  	/*

>>  	 * Reset the sensor by cycling the OV10635 reset signal connected to the

>>  	 * MAX9271 GPIO1 and verify communication with the OV10635.

>>  	 */

>> -	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);

>> +	ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>>  	if (ret)

>>  		return ret;

>>  

>> -	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);

>> +	ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>>  	if (ret)

>>  		return ret;

>>  	usleep_range(10000, 15000);

>>  

>> -	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);

>> +	ret = max9271_set_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>>  	if (ret)

>>  		return ret;

>>  	usleep_range(10000, 15000);

>> @@ -564,13 +564,7 @@ static int rdacm20_probe(struct i2c_client *client)

>>  	if (!dev)

>>  		return -ENOMEM;

>>  	dev->dev = &client->dev;

>> -

>> -	dev->serializer = devm_kzalloc(&client->dev, sizeof(*dev->serializer),

>> -				       GFP_KERNEL);

>> -	if (!dev->serializer)

>> -		return -ENOMEM;

>> -

>> -	dev->serializer->client = client;

>> +	dev->serializer.client = client;

>>  

>>  	ret = of_property_read_u32_array(client->dev.of_node, "reg",

>>  					 dev->addrs, 2);

>
Jacopo Mondi June 17, 2021, 7:42 a.m. UTC | #3
Hello,

On Thu, Jun 17, 2021 at 08:18:42AM +0200, Hans Verkuil wrote:
> On 17/06/2021 02:14, Laurent Pinchart wrote:

> > Hi Jacopo,

> >

> > Thank you for the patch.

> >

> > This should be moved before 11/15 to avoid a bisection breakage (or

> > 11/15 should be fixed, and this patch updated accordingly).

>

> Good catch!


Good catch indeed... Sorry about this I shuffled patches around
multiple times and missed this one

>

> Jacopo, I dropped the PR I made. It you just want to swap patch 11 and 12,

> then I can do that, if you want more extensive changes, then I need a v6.

>

> Let me know what you want.


I think swapping 11 and 12 is enough, thanks for handling it.
(BTW there's one additional tag from Kieran to collect which is not in
v5. Would you like a v6 for that ?)

Thanks
  j

>

> 	Hans

>

> >

> > On Wed, Jun 16, 2021 at 02:46:13PM +0200, Jacopo Mondi wrote:

> >> There's no reason to allocate dynamically the 'serializer' field in

> >> the driver structure.

> >>

> >> Embed the field and adjust all its users in the driver.

> >>

> >> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

> >> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

> >> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> >> ---

> >>  drivers/media/i2c/rdacm20.c | 36 +++++++++++++++---------------------

> >>  1 file changed, 15 insertions(+), 21 deletions(-)

> >>

> >> diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c

> >> index 5e0314a2b1ca..029af8fd7485 100644

> >> --- a/drivers/media/i2c/rdacm20.c

> >> +++ b/drivers/media/i2c/rdacm20.c

> >> @@ -312,7 +312,7 @@ static const struct ov10635_reg {

> >>

> >>  struct rdacm20_device {

> >>  	struct device			*dev;

> >> -	struct max9271_device		*serializer;

> >> +	struct max9271_device		serializer;

> >>  	struct i2c_client		*sensor;

> >>  	struct v4l2_subdev		sd;

> >>  	struct media_pad		pad;

> >> @@ -399,7 +399,7 @@ static int rdacm20_s_stream(struct v4l2_subdev *sd, int enable)

> >>  {

> >>  	struct rdacm20_device *dev = sd_to_rdacm20(sd);

> >>

> >> -	return max9271_set_serial_link(dev->serializer, enable);

> >> +	return max9271_set_serial_link(&dev->serializer, enable);

> >>  }

> >>

> >>  static int rdacm20_enum_mbus_code(struct v4l2_subdev *sd,

> >> @@ -455,10 +455,10 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

> >>  	unsigned int retry = 3;

> >>  	int ret;

> >>

> >> -	max9271_wake_up(dev->serializer);

> >> +	max9271_wake_up(&dev->serializer);

> >>

> >>  	/* Serial link disabled during config as it needs a valid pixel clock. */

> >> -	ret = max9271_set_serial_link(dev->serializer, false);

> >> +	ret = max9271_set_serial_link(&dev->serializer, false);

> >>  	if (ret)

> >>  		return ret;

> >>

> >> @@ -466,35 +466,35 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

> >>  	 *  Ensure that we have a good link configuration before attempting to

> >>  	 *  identify the device.

> >>  	 */

> >> -	max9271_configure_i2c(dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

> >> -					       MAX9271_I2CSLVTO_1024US |

> >> -					       MAX9271_I2CMSTBT_105KBPS);

> >> +	max9271_configure_i2c(&dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

> >> +						MAX9271_I2CSLVTO_1024US |

> >> +						MAX9271_I2CMSTBT_105KBPS);

> >>

> >> -	max9271_configure_gmsl_link(dev->serializer);

> >> +	max9271_configure_gmsl_link(&dev->serializer);

> >>

> >> -	ret = max9271_verify_id(dev->serializer);

> >> +	ret = max9271_verify_id(&dev->serializer);

> >>  	if (ret < 0)

> >>  		return ret;

> >>

> >> -	ret = max9271_set_address(dev->serializer, dev->addrs[0]);

> >> +	ret = max9271_set_address(&dev->serializer, dev->addrs[0]);

> >>  	if (ret < 0)

> >>  		return ret;

> >> -	dev->serializer->client->addr = dev->addrs[0];

> >> +	dev->serializer.client->addr = dev->addrs[0];

> >>

> >>  	/*

> >>  	 * Reset the sensor by cycling the OV10635 reset signal connected to the

> >>  	 * MAX9271 GPIO1 and verify communication with the OV10635.

> >>  	 */

> >> -	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);

> >> +	ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT);

> >>  	if (ret)

> >>  		return ret;

> >>

> >> -	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);

> >> +	ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT);

> >>  	if (ret)

> >>  		return ret;

> >>  	usleep_range(10000, 15000);

> >>

> >> -	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);

> >> +	ret = max9271_set_gpios(&dev->serializer, MAX9271_GPIO1OUT);

> >>  	if (ret)

> >>  		return ret;

> >>  	usleep_range(10000, 15000);

> >> @@ -564,13 +564,7 @@ static int rdacm20_probe(struct i2c_client *client)

> >>  	if (!dev)

> >>  		return -ENOMEM;

> >>  	dev->dev = &client->dev;

> >> -

> >> -	dev->serializer = devm_kzalloc(&client->dev, sizeof(*dev->serializer),

> >> -				       GFP_KERNEL);

> >> -	if (!dev->serializer)

> >> -		return -ENOMEM;

> >> -

> >> -	dev->serializer->client = client;

> >> +	dev->serializer.client = client;

> >>

> >>  	ret = of_property_read_u32_array(client->dev.of_node, "reg",

> >>  					 dev->addrs, 2);

> >

>
Hans Verkuil June 17, 2021, 8:12 a.m. UTC | #4
On 17/06/2021 09:42, Jacopo Mondi wrote:
> Hello,

> 

> On Thu, Jun 17, 2021 at 08:18:42AM +0200, Hans Verkuil wrote:

>> On 17/06/2021 02:14, Laurent Pinchart wrote:

>>> Hi Jacopo,

>>>

>>> Thank you for the patch.

>>>

>>> This should be moved before 11/15 to avoid a bisection breakage (or

>>> 11/15 should be fixed, and this patch updated accordingly).

>>

>> Good catch!

> 

> Good catch indeed... Sorry about this I shuffled patches around

> multiple times and missed this one

> 

>>

>> Jacopo, I dropped the PR I made. It you just want to swap patch 11 and 12,

>> then I can do that, if you want more extensive changes, then I need a v6.

>>

>> Let me know what you want.

> 

> I think swapping 11 and 12 is enough, thanks for handling it.

> (BTW there's one additional tag from Kieran to collect which is not in

> v5. Would you like a v6 for that ?)


Updated the PR and added Kieran's tag. So no need for you to do anything.

Regards,

	Hans

> 

> Thanks

>   j

> 

>>

>> 	Hans

>>

>>>

>>> On Wed, Jun 16, 2021 at 02:46:13PM +0200, Jacopo Mondi wrote:

>>>> There's no reason to allocate dynamically the 'serializer' field in

>>>> the driver structure.

>>>>

>>>> Embed the field and adjust all its users in the driver.

>>>>

>>>> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

>>>> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

>>>> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

>>>> ---

>>>>  drivers/media/i2c/rdacm20.c | 36 +++++++++++++++---------------------

>>>>  1 file changed, 15 insertions(+), 21 deletions(-)

>>>>

>>>> diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c

>>>> index 5e0314a2b1ca..029af8fd7485 100644

>>>> --- a/drivers/media/i2c/rdacm20.c

>>>> +++ b/drivers/media/i2c/rdacm20.c

>>>> @@ -312,7 +312,7 @@ static const struct ov10635_reg {

>>>>

>>>>  struct rdacm20_device {

>>>>  	struct device			*dev;

>>>> -	struct max9271_device		*serializer;

>>>> +	struct max9271_device		serializer;

>>>>  	struct i2c_client		*sensor;

>>>>  	struct v4l2_subdev		sd;

>>>>  	struct media_pad		pad;

>>>> @@ -399,7 +399,7 @@ static int rdacm20_s_stream(struct v4l2_subdev *sd, int enable)

>>>>  {

>>>>  	struct rdacm20_device *dev = sd_to_rdacm20(sd);

>>>>

>>>> -	return max9271_set_serial_link(dev->serializer, enable);

>>>> +	return max9271_set_serial_link(&dev->serializer, enable);

>>>>  }

>>>>

>>>>  static int rdacm20_enum_mbus_code(struct v4l2_subdev *sd,

>>>> @@ -455,10 +455,10 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

>>>>  	unsigned int retry = 3;

>>>>  	int ret;

>>>>

>>>> -	max9271_wake_up(dev->serializer);

>>>> +	max9271_wake_up(&dev->serializer);

>>>>

>>>>  	/* Serial link disabled during config as it needs a valid pixel clock. */

>>>> -	ret = max9271_set_serial_link(dev->serializer, false);

>>>> +	ret = max9271_set_serial_link(&dev->serializer, false);

>>>>  	if (ret)

>>>>  		return ret;

>>>>

>>>> @@ -466,35 +466,35 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

>>>>  	 *  Ensure that we have a good link configuration before attempting to

>>>>  	 *  identify the device.

>>>>  	 */

>>>> -	max9271_configure_i2c(dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

>>>> -					       MAX9271_I2CSLVTO_1024US |

>>>> -					       MAX9271_I2CMSTBT_105KBPS);

>>>> +	max9271_configure_i2c(&dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

>>>> +						MAX9271_I2CSLVTO_1024US |

>>>> +						MAX9271_I2CMSTBT_105KBPS);

>>>>

>>>> -	max9271_configure_gmsl_link(dev->serializer);

>>>> +	max9271_configure_gmsl_link(&dev->serializer);

>>>>

>>>> -	ret = max9271_verify_id(dev->serializer);

>>>> +	ret = max9271_verify_id(&dev->serializer);

>>>>  	if (ret < 0)

>>>>  		return ret;

>>>>

>>>> -	ret = max9271_set_address(dev->serializer, dev->addrs[0]);

>>>> +	ret = max9271_set_address(&dev->serializer, dev->addrs[0]);

>>>>  	if (ret < 0)

>>>>  		return ret;

>>>> -	dev->serializer->client->addr = dev->addrs[0];

>>>> +	dev->serializer.client->addr = dev->addrs[0];

>>>>

>>>>  	/*

>>>>  	 * Reset the sensor by cycling the OV10635 reset signal connected to the

>>>>  	 * MAX9271 GPIO1 and verify communication with the OV10635.

>>>>  	 */

>>>> -	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);

>>>> +	ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>>>>  	if (ret)

>>>>  		return ret;

>>>>

>>>> -	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);

>>>> +	ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>>>>  	if (ret)

>>>>  		return ret;

>>>>  	usleep_range(10000, 15000);

>>>>

>>>> -	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);

>>>> +	ret = max9271_set_gpios(&dev->serializer, MAX9271_GPIO1OUT);

>>>>  	if (ret)

>>>>  		return ret;

>>>>  	usleep_range(10000, 15000);

>>>> @@ -564,13 +564,7 @@ static int rdacm20_probe(struct i2c_client *client)

>>>>  	if (!dev)

>>>>  		return -ENOMEM;

>>>>  	dev->dev = &client->dev;

>>>> -

>>>> -	dev->serializer = devm_kzalloc(&client->dev, sizeof(*dev->serializer),

>>>> -				       GFP_KERNEL);

>>>> -	if (!dev->serializer)

>>>> -		return -ENOMEM;

>>>> -

>>>> -	dev->serializer->client = client;

>>>> +	dev->serializer.client = client;

>>>>

>>>>  	ret = of_property_read_u32_array(client->dev.of_node, "reg",

>>>>  					 dev->addrs, 2);

>>>

>>
Jacopo Mondi June 17, 2021, 8:20 a.m. UTC | #5
On Thu, Jun 17, 2021 at 10:12:26AM +0200, Hans Verkuil wrote:
> On 17/06/2021 09:42, Jacopo Mondi wrote:

> > Hello,

> >

> > On Thu, Jun 17, 2021 at 08:18:42AM +0200, Hans Verkuil wrote:

> >> On 17/06/2021 02:14, Laurent Pinchart wrote:

> >>> Hi Jacopo,

> >>>

> >>> Thank you for the patch.

> >>>

> >>> This should be moved before 11/15 to avoid a bisection breakage (or

> >>> 11/15 should be fixed, and this patch updated accordingly).

> >>

> >> Good catch!

> >

> > Good catch indeed... Sorry about this I shuffled patches around

> > multiple times and missed this one

> >

> >>

> >> Jacopo, I dropped the PR I made. It you just want to swap patch 11 and 12,

> >> then I can do that, if you want more extensive changes, then I need a v6.

> >>

> >> Let me know what you want.

> >

> > I think swapping 11 and 12 is enough, thanks for handling it.

> > (BTW there's one additional tag from Kieran to collect which is not in

> > v5. Would you like a v6 for that ?)

>

> Updated the PR and added Kieran's tag. So no need for you to do anything.


Thanks a lot then and sorry for hiccup

>

> Regards,

>

> 	Hans

>

> >

> > Thanks

> >   j

> >

> >>

> >> 	Hans

> >>

> >>>

> >>> On Wed, Jun 16, 2021 at 02:46:13PM +0200, Jacopo Mondi wrote:

> >>>> There's no reason to allocate dynamically the 'serializer' field in

> >>>> the driver structure.

> >>>>

> >>>> Embed the field and adjust all its users in the driver.

> >>>>

> >>>> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

> >>>> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

> >>>> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> >>>> ---

> >>>>  drivers/media/i2c/rdacm20.c | 36 +++++++++++++++---------------------

> >>>>  1 file changed, 15 insertions(+), 21 deletions(-)

> >>>>

> >>>> diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c

> >>>> index 5e0314a2b1ca..029af8fd7485 100644

> >>>> --- a/drivers/media/i2c/rdacm20.c

> >>>> +++ b/drivers/media/i2c/rdacm20.c

> >>>> @@ -312,7 +312,7 @@ static const struct ov10635_reg {

> >>>>

> >>>>  struct rdacm20_device {

> >>>>  	struct device			*dev;

> >>>> -	struct max9271_device		*serializer;

> >>>> +	struct max9271_device		serializer;

> >>>>  	struct i2c_client		*sensor;

> >>>>  	struct v4l2_subdev		sd;

> >>>>  	struct media_pad		pad;

> >>>> @@ -399,7 +399,7 @@ static int rdacm20_s_stream(struct v4l2_subdev *sd, int enable)

> >>>>  {

> >>>>  	struct rdacm20_device *dev = sd_to_rdacm20(sd);

> >>>>

> >>>> -	return max9271_set_serial_link(dev->serializer, enable);

> >>>> +	return max9271_set_serial_link(&dev->serializer, enable);

> >>>>  }

> >>>>

> >>>>  static int rdacm20_enum_mbus_code(struct v4l2_subdev *sd,

> >>>> @@ -455,10 +455,10 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

> >>>>  	unsigned int retry = 3;

> >>>>  	int ret;

> >>>>

> >>>> -	max9271_wake_up(dev->serializer);

> >>>> +	max9271_wake_up(&dev->serializer);

> >>>>

> >>>>  	/* Serial link disabled during config as it needs a valid pixel clock. */

> >>>> -	ret = max9271_set_serial_link(dev->serializer, false);

> >>>> +	ret = max9271_set_serial_link(&dev->serializer, false);

> >>>>  	if (ret)

> >>>>  		return ret;

> >>>>

> >>>> @@ -466,35 +466,35 @@ static int rdacm20_initialize(struct rdacm20_device *dev)

> >>>>  	 *  Ensure that we have a good link configuration before attempting to

> >>>>  	 *  identify the device.

> >>>>  	 */

> >>>> -	max9271_configure_i2c(dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

> >>>> -					       MAX9271_I2CSLVTO_1024US |

> >>>> -					       MAX9271_I2CMSTBT_105KBPS);

> >>>> +	max9271_configure_i2c(&dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |

> >>>> +						MAX9271_I2CSLVTO_1024US |

> >>>> +						MAX9271_I2CMSTBT_105KBPS);

> >>>>

> >>>> -	max9271_configure_gmsl_link(dev->serializer);

> >>>> +	max9271_configure_gmsl_link(&dev->serializer);

> >>>>

> >>>> -	ret = max9271_verify_id(dev->serializer);

> >>>> +	ret = max9271_verify_id(&dev->serializer);

> >>>>  	if (ret < 0)

> >>>>  		return ret;

> >>>>

> >>>> -	ret = max9271_set_address(dev->serializer, dev->addrs[0]);

> >>>> +	ret = max9271_set_address(&dev->serializer, dev->addrs[0]);

> >>>>  	if (ret < 0)

> >>>>  		return ret;

> >>>> -	dev->serializer->client->addr = dev->addrs[0];

> >>>> +	dev->serializer.client->addr = dev->addrs[0];

> >>>>

> >>>>  	/*

> >>>>  	 * Reset the sensor by cycling the OV10635 reset signal connected to the

> >>>>  	 * MAX9271 GPIO1 and verify communication with the OV10635.

> >>>>  	 */

> >>>> -	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);

> >>>> +	ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT);

> >>>>  	if (ret)

> >>>>  		return ret;

> >>>>

> >>>> -	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);

> >>>> +	ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT);

> >>>>  	if (ret)

> >>>>  		return ret;

> >>>>  	usleep_range(10000, 15000);

> >>>>

> >>>> -	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);

> >>>> +	ret = max9271_set_gpios(&dev->serializer, MAX9271_GPIO1OUT);

> >>>>  	if (ret)

> >>>>  		return ret;

> >>>>  	usleep_range(10000, 15000);

> >>>> @@ -564,13 +564,7 @@ static int rdacm20_probe(struct i2c_client *client)

> >>>>  	if (!dev)

> >>>>  		return -ENOMEM;

> >>>>  	dev->dev = &client->dev;

> >>>> -

> >>>> -	dev->serializer = devm_kzalloc(&client->dev, sizeof(*dev->serializer),

> >>>> -				       GFP_KERNEL);

> >>>> -	if (!dev->serializer)

> >>>> -		return -ENOMEM;

> >>>> -

> >>>> -	dev->serializer->client = client;

> >>>> +	dev->serializer.client = client;

> >>>>

> >>>>  	ret = of_property_read_u32_array(client->dev.of_node, "reg",

> >>>>  					 dev->addrs, 2);

> >>>

> >>

>
diff mbox series

Patch

diff --git a/drivers/media/i2c/rdacm20.c b/drivers/media/i2c/rdacm20.c
index 5e0314a2b1ca..029af8fd7485 100644
--- a/drivers/media/i2c/rdacm20.c
+++ b/drivers/media/i2c/rdacm20.c
@@ -312,7 +312,7 @@  static const struct ov10635_reg {
 
 struct rdacm20_device {
 	struct device			*dev;
-	struct max9271_device		*serializer;
+	struct max9271_device		serializer;
 	struct i2c_client		*sensor;
 	struct v4l2_subdev		sd;
 	struct media_pad		pad;
@@ -399,7 +399,7 @@  static int rdacm20_s_stream(struct v4l2_subdev *sd, int enable)
 {
 	struct rdacm20_device *dev = sd_to_rdacm20(sd);
 
-	return max9271_set_serial_link(dev->serializer, enable);
+	return max9271_set_serial_link(&dev->serializer, enable);
 }
 
 static int rdacm20_enum_mbus_code(struct v4l2_subdev *sd,
@@ -455,10 +455,10 @@  static int rdacm20_initialize(struct rdacm20_device *dev)
 	unsigned int retry = 3;
 	int ret;
 
-	max9271_wake_up(dev->serializer);
+	max9271_wake_up(&dev->serializer);
 
 	/* Serial link disabled during config as it needs a valid pixel clock. */
-	ret = max9271_set_serial_link(dev->serializer, false);
+	ret = max9271_set_serial_link(&dev->serializer, false);
 	if (ret)
 		return ret;
 
@@ -466,35 +466,35 @@  static int rdacm20_initialize(struct rdacm20_device *dev)
 	 *  Ensure that we have a good link configuration before attempting to
 	 *  identify the device.
 	 */
-	max9271_configure_i2c(dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |
-					       MAX9271_I2CSLVTO_1024US |
-					       MAX9271_I2CMSTBT_105KBPS);
+	max9271_configure_i2c(&dev->serializer, MAX9271_I2CSLVSH_469NS_234NS |
+						MAX9271_I2CSLVTO_1024US |
+						MAX9271_I2CMSTBT_105KBPS);
 
-	max9271_configure_gmsl_link(dev->serializer);
+	max9271_configure_gmsl_link(&dev->serializer);
 
-	ret = max9271_verify_id(dev->serializer);
+	ret = max9271_verify_id(&dev->serializer);
 	if (ret < 0)
 		return ret;
 
-	ret = max9271_set_address(dev->serializer, dev->addrs[0]);
+	ret = max9271_set_address(&dev->serializer, dev->addrs[0]);
 	if (ret < 0)
 		return ret;
-	dev->serializer->client->addr = dev->addrs[0];
+	dev->serializer.client->addr = dev->addrs[0];
 
 	/*
 	 * Reset the sensor by cycling the OV10635 reset signal connected to the
 	 * MAX9271 GPIO1 and verify communication with the OV10635.
 	 */
-	ret = max9271_enable_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT);
 	if (ret)
 		return ret;
 
-	ret = max9271_clear_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT);
 	if (ret)
 		return ret;
 	usleep_range(10000, 15000);
 
-	ret = max9271_set_gpios(dev->serializer, MAX9271_GPIO1OUT);
+	ret = max9271_set_gpios(&dev->serializer, MAX9271_GPIO1OUT);
 	if (ret)
 		return ret;
 	usleep_range(10000, 15000);
@@ -564,13 +564,7 @@  static int rdacm20_probe(struct i2c_client *client)
 	if (!dev)
 		return -ENOMEM;
 	dev->dev = &client->dev;
-
-	dev->serializer = devm_kzalloc(&client->dev, sizeof(*dev->serializer),
-				       GFP_KERNEL);
-	if (!dev->serializer)
-		return -ENOMEM;
-
-	dev->serializer->client = client;
+	dev->serializer.client = client;
 
 	ret = of_property_read_u32_array(client->dev.of_node, "reg",
 					 dev->addrs, 2);