[PATCH v2 3/3] gpio: zynq: Simplify with of_device_get_match_data()

Krzysztof Kozlowski posted 3 patches 7 hours ago
[PATCH v2 3/3] gpio: zynq: Simplify with of_device_get_match_data()
Posted by Krzysztof Kozlowski 7 hours ago
Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with of_device_get_match_data().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 drivers/gpio/gpio-zynq.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 97780c57ab56..d69773318888 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -903,18 +903,16 @@ static int zynq_gpio_probe(struct platform_device *pdev)
 	struct zynq_gpio *gpio;
 	struct gpio_chip *chip;
 	struct gpio_irq_chip *girq;
-	const struct of_device_id *match;
 
 	gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
 	if (!gpio)
 		return -ENOMEM;
 
-	match = of_match_node(zynq_gpio_of_match, pdev->dev.of_node);
-	if (!match) {
-		dev_err(&pdev->dev, "of_match_node() failed\n");
+	gpio->p_data = device_get_match_data(&pdev->dev);
+	if (!gpio->p_data) {
+		dev_err(&pdev->dev, "of_device_get_match_data() failed\n");
 		return -EINVAL;
 	}
-	gpio->p_data = match->data;
 	platform_set_drvdata(pdev, gpio);
 
 	gpio->base_addr = devm_platform_ioremap_resource(pdev, 0);

-- 
2.51.0
Re: [PATCH v2 3/3] gpio: zynq: Simplify with of_device_get_match_data()
Posted by Bartosz Golaszewski 7 hours ago
On Fri, Dec 19, 2025 at 11:12 AM Krzysztof Kozlowski
<krzysztof.kozlowski@oss.qualcomm.com> wrote:
>
> Driver's probe function matches against driver's of_device_id table,
> where each entry has non-NULL match data, so of_match_node() can be
> simplified with of_device_get_match_data().
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---

I think there are some copy-paste leftovers in your commit messages.
You're saying you're using of_ functions but you're really going for
the device_ ones. Also update error messages. And possibly use
dev_err_probe() too while at it?

Same elsewhere.

Bart
Re: [PATCH v2 3/3] gpio: zynq: Simplify with of_device_get_match_data()
Posted by Krzysztof Kozlowski 5 hours ago
On 19/12/2025 11:15, Bartosz Golaszewski wrote:
> On Fri, Dec 19, 2025 at 11:12 AM Krzysztof Kozlowski
> <krzysztof.kozlowski@oss.qualcomm.com> wrote:
>>
>> Driver's probe function matches against driver's of_device_id table,
>> where each entry has non-NULL match data, so of_match_node() can be
>> simplified with of_device_get_match_data().
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
>> ---
> 
> I think there are some copy-paste leftovers in your commit messages.

I just did not update the commit msg.

> You're saying you're using of_ functions but you're really going for
> the device_ ones. Also update error messages. And possibly use
> dev_err_probe() too while at it?

Sure

> 
> Same elsewhere.
> 
> Bart


Best regards,
Krzysztof
Re: [PATCH v2 3/3] gpio: zynq: Simplify with of_device_get_match_data()
Posted by Michal Simek 7 hours ago

On 12/19/25 11:11, Krzysztof Kozlowski wrote:
> Driver's probe function matches against driver's of_device_id table,
> where each entry has non-NULL match data, so of_match_node() can be
> simplified with of_device_get_match_data().

device_get_match_data() right?

> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---
>   drivers/gpio/gpio-zynq.c | 8 +++-----
>   1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
> index 97780c57ab56..d69773318888 100644
> --- a/drivers/gpio/gpio-zynq.c
> +++ b/drivers/gpio/gpio-zynq.c
> @@ -903,18 +903,16 @@ static int zynq_gpio_probe(struct platform_device *pdev)
>   	struct zynq_gpio *gpio;
>   	struct gpio_chip *chip;
>   	struct gpio_irq_chip *girq;
> -	const struct of_device_id *match;
>   
>   	gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
>   	if (!gpio)
>   		return -ENOMEM;
>   
> -	match = of_match_node(zynq_gpio_of_match, pdev->dev.of_node);
> -	if (!match) {
> -		dev_err(&pdev->dev, "of_match_node() failed\n");
> +	gpio->p_data = device_get_match_data(&pdev->dev);
> +	if (!gpio->p_data) {
> +		dev_err(&pdev->dev, "of_device_get_match_data() failed\n");

device_get_match_data() ?




>   		return -EINVAL;
>   	}
> -	gpio->p_data = match->data;
>   	platform_set_drvdata(pdev, gpio);
>   
>   	gpio->base_addr = devm_platform_ioremap_resource(pdev, 0);
> 

M