[PATCH 4/6] i2c: designware-amdisp: use i2c_adapter_dev()

Bartosz Golaszewski posted 6 patches 1 month, 2 weeks ago
[PATCH 4/6] i2c: designware-amdisp: use i2c_adapter_dev()
Posted by Bartosz Golaszewski 1 month, 2 weeks ago
Use i2c_adapter_dev() where applicable in order to avoid direct
dereferencing of struct device embedded within struct i2c_adapter.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
---
 drivers/i2c/busses/i2c-designware-amdisp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-designware-amdisp.c b/drivers/i2c/busses/i2c-designware-amdisp.c
index 450793d5f83921ac9a8c6d00414890779da49c07..67772bccb71927e870c11fa88340caabcb07f264 100644
--- a/drivers/i2c/busses/i2c-designware-amdisp.c
+++ b/drivers/i2c/busses/i2c-designware-amdisp.c
@@ -64,7 +64,7 @@ static int amd_isp_dw_i2c_plat_probe(struct platform_device *pdev)
 	adap = &isp_i2c_dev->adapter;
 	adap->owner = THIS_MODULE;
 	scnprintf(adap->name, sizeof(adap->name), AMDISP_I2C_ADAP_NAME);
-	ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));
+	ACPI_COMPANION_SET(i2c_adapter_dev(adap), ACPI_COMPANION(&pdev->dev));
 	adap->dev.of_node = pdev->dev.of_node;
 	/* use dynamically allocated adapter id */
 	adap->nr = -1;

-- 
2.47.3
Re: [PATCH 4/6] i2c: designware-amdisp: use i2c_adapter_dev()
Posted by Nirujogi, Pratap 1 month ago
On 12/23/2025 5:08 AM, Bartosz Golaszewski wrote:
> Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.
>
>
> Use i2c_adapter_dev() where applicable in order to avoid direct
> dereferencing of struct device embedded within struct i2c_adapter.
>
> Signed-off-by: Bartosz Golaszewski<bartosz.golaszewski@oss.qualcomm.com>

Acked-by: Pratap Nirujogi<pratap.nirujogi@amd.com>

(I'm assuming Andy's suggestion to use i2c_adapter_set_node() will be covered in the other patch series)

Thanks,
Pratap

> ---
>   drivers/i2c/busses/i2c-designware-amdisp.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/i2c/busses/i2c-designware-amdisp.c b/drivers/i2c/busses/i2c-designware-amdisp.c
> index 450793d5f83921ac9a8c6d00414890779da49c07..67772bccb71927e870c11fa88340caabcb07f264 100644
> --- a/drivers/i2c/busses/i2c-designware-amdisp.c
> +++ b/drivers/i2c/busses/i2c-designware-amdisp.c
> @@ -64,7 +64,7 @@ static int amd_isp_dw_i2c_plat_probe(struct platform_device *pdev)
>          adap = &isp_i2c_dev->adapter;
>          adap->owner = THIS_MODULE;
>          scnprintf(adap->name, sizeof(adap->name), AMDISP_I2C_ADAP_NAME);
> -       ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));
> +       ACPI_COMPANION_SET(i2c_adapter_dev(adap), ACPI_COMPANION(&pdev->dev));
>          adap->dev.of_node = pdev->dev.of_node;
>          /* use dynamically allocated adapter id */
>          adap->nr = -1;
>
> --
> 2.47.3
>
Re: [PATCH 4/6] i2c: designware-amdisp: use i2c_adapter_dev()
Posted by Andy Shevchenko 1 month ago
On Mon, Jan 05, 2026 at 02:26:06PM -0500, Nirujogi, Pratap wrote:
> On 12/23/2025 5:08 AM, Bartosz Golaszewski wrote:

> > Use i2c_adapter_dev() where applicable in order to avoid direct
> > dereferencing of struct device embedded within struct i2c_adapter.
> > 
> > Signed-off-by: Bartosz Golaszewski<bartosz.golaszewski@oss.qualcomm.com>
> 
> Acked-by: Pratap Nirujogi<pratap.nirujogi@amd.com>
> 
> (I'm assuming Andy's suggestion to use i2c_adapter_set_node() will be covered
> in the other patch series)

With that done, this patch won't be needed at all.

-- 
With Best Regards,
Andy Shevchenko
Re: [PATCH 4/6] i2c: designware-amdisp: use i2c_adapter_dev()
Posted by Andy Shevchenko 1 month, 1 week ago
On Tue, Dec 23, 2025 at 11:08:21AM +0100, Bartosz Golaszewski wrote:
> Use i2c_adapter_dev() where applicable in order to avoid direct
> dereferencing of struct device embedded within struct i2c_adapter.

...

> -	ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));
> +	ACPI_COMPANION_SET(i2c_adapter_dev(adap), ACPI_COMPANION(&pdev->dev));
>  	adap->dev.of_node = pdev->dev.of_node;

Why not just replace these with i2c_dev_set_node()?


-- 
With Best Regards,
Andy Shevchenko
Re: [PATCH 4/6] i2c: designware-amdisp: use i2c_adapter_dev()
Posted by Andy Shevchenko 1 month, 1 week ago
On Sat, Dec 27, 2025 at 04:29:43PM +0200, Andy Shevchenko wrote:
> On Tue, Dec 23, 2025 at 11:08:21AM +0100, Bartosz Golaszewski wrote:

...

> > -	ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));
> > +	ACPI_COMPANION_SET(i2c_adapter_dev(adap), ACPI_COMPANION(&pdev->dev));
> >  	adap->dev.of_node = pdev->dev.of_node;
> 
> Why not just replace these with i2c_dev_set_node()?

Oh, I meant the i2c_adapter_set_node() that you just introduced in the previous
series. Effectively this makes a patch of that series.

-- 
With Best Regards,
Andy Shevchenko