Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1645680 > unrolled thread

[PATCH] input: move gpio mouse to managed api

Started byBram Vlerick <vlerickb@gmail.com>
First post2017-05-19 17:40 +0200
Last post2017-05-19 22:30 +0200
Articles 3 — 3 participants

Back to article view | Back to linux.kernel

Contents

  [PATCH] input: move gpio mouse to managed api Bram Vlerick <vlerickb@gmail.com> - 2017-05-19 17:40 +0200
    Re: [PATCH] input: move gpio mouse to managed api Michael Opdenacker <michael.opdenacker@free-electrons.com> - 2017-05-19 17:50 +0200
    Re: [PATCH] input: move gpio mouse to managed api Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2017-05-19 22:30 +0200

#1645680 — [PATCH] input: move gpio mouse to managed api

FromBram Vlerick <vlerickb@gmail.com>
Date2017-05-19 17:40 +0200
Subject[PATCH] input: move gpio mouse to managed api
Message-ID<tISat-47F-1@gated-at.bofh.it>
Signed-off-by: Bram Vlerick <vlerickb@gmail.com>
---
 drivers/input/mouse/gpio_mouse.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
index ced07391304b..7d56fd5173bc 100644
--- a/drivers/input/mouse/gpio_mouse.c
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -93,7 +93,7 @@ static int gpio_mouse_probe(struct platform_device *pdev)
 		}
 	}
 
-	input_poll = input_allocate_polled_device();
+	input_poll = devm_input_allocate_polled_device(&pdev->dev);
 	if (!input_poll) {
 		dev_err(&pdev->dev, "not enough memory for input device\n");
 		error = -ENOMEM;
@@ -124,7 +124,7 @@ static int gpio_mouse_probe(struct platform_device *pdev)
 	error = input_register_polled_device(input_poll);
 	if (error) {
 		dev_err(&pdev->dev, "could not register input device\n");
-		goto out_free_polldev;
+		goto out_free_gpios;
 	}
 
 	dev_dbg(&pdev->dev, "%d ms scan time, buttons: %s%s%s\n",
@@ -135,9 +135,6 @@ static int gpio_mouse_probe(struct platform_device *pdev)
 
 	return 0;
 
- out_free_polldev:
-	input_free_polled_device(input_poll);
-
  out_free_gpios:
 	while (--i >= 0) {
 		pin = pdata->pins[i];
@@ -154,9 +151,6 @@ static int gpio_mouse_remove(struct platform_device *pdev)
 	struct gpio_mouse_platform_data *pdata = input->private;
 	int pin, i;
 
-	input_unregister_polled_device(input);
-	input_free_polled_device(input);
-
 	for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) {
 		pin = pdata->pins[i];
 		if (pin >= 0)
-- 
2.12.2

[toc] | [next] | [standalone]

#1645684

FromMichael Opdenacker <michael.opdenacker@free-electrons.com>
Date2017-05-19 17:50 +0200
Message-ID<tISk9-4bg-5@gated-at.bofh.it>
In reply to#1645680
On 19/05/2017 17:35, Bram Vlerick wrote:
> Signed-off-by: Bram Vlerick <vlerickb@gmail.com>
> ---
>  drivers/input/mouse/gpio_mouse.c | 10 ++--------
>  1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
> index ced07391304b..7d56fd5173bc 100644
> --- a/drivers/input/mouse/gpio_mouse.c
> +++ b/drivers/input/mouse/gpio_mouse.c
> @@ -93,7 +93,7 @@ static int gpio_mouse_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	input_poll = input_allocate_polled_device();
> +	input_poll = devm_input_allocate_polled_device(&pdev->dev);
>  	if (!input_poll) {
>  		dev_err(&pdev->dev, "not enough memory for input device\n");
>  		error = -ENOMEM;
> @@ -124,7 +124,7 @@ static int gpio_mouse_probe(struct platform_device *pdev)
>  	error = input_register_polled_device(input_poll);
>  	if (error) {
>  		dev_err(&pdev->dev, "could not register input device\n");
> -		goto out_free_polldev;
> +		goto out_free_gpios;
>  	}
>  
>  	dev_dbg(&pdev->dev, "%d ms scan time, buttons: %s%s%s\n",
> @@ -135,9 +135,6 @@ static int gpio_mouse_probe(struct platform_device *pdev)
>  
>  	return 0;
>  
> - out_free_polldev:
> -	input_free_polled_device(input_poll);
> -
>   out_free_gpios:
>  	while (--i >= 0) {
>  		pin = pdata->pins[i];
> @@ -154,9 +151,6 @@ static int gpio_mouse_remove(struct platform_device *pdev)
>  	struct gpio_mouse_platform_data *pdata = input->private;
>  	int pin, i;
>  
> -	input_unregister_polled_device(input);
> -	input_free_polled_device(input);
> -
>  	for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) {
>  		pin = pdata->pins[i];
>  		if (pin >= 0)

Reviewed-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>

-- 
Michael Opdenacker, CEO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[toc] | [prev] | [next] | [standalone]

#1645894

FromDmitry Torokhov <dmitry.torokhov@gmail.com>
Date2017-05-19 22:30 +0200
Message-ID<tIWH7-7pL-3@gated-at.bofh.it>
In reply to#1645680
Hi Bram,

On Fri, May 19, 2017 at 05:35:02PM +0200, Bram Vlerick wrote:
> Signed-off-by: Bram Vlerick <vlerickb@gmail.com>
> ---
>  drivers/input/mouse/gpio_mouse.c | 10 ++--------
>  1 file changed, 2 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
> index ced07391304b..7d56fd5173bc 100644
> --- a/drivers/input/mouse/gpio_mouse.c
> +++ b/drivers/input/mouse/gpio_mouse.c
> @@ -93,7 +93,7 @@ static int gpio_mouse_probe(struct platform_device *pdev)
>  		}
>  	}
>  
> -	input_poll = input_allocate_polled_device();
> +	input_poll = devm_input_allocate_polled_device(&pdev->dev);
>  	if (!input_poll) {
>  		dev_err(&pdev->dev, "not enough memory for input device\n");
>  		error = -ENOMEM;
> @@ -124,7 +124,7 @@ static int gpio_mouse_probe(struct platform_device *pdev)
>  	error = input_register_polled_device(input_poll);
>  	if (error) {
>  		dev_err(&pdev->dev, "could not register input device\n");
> -		goto out_free_polldev;
> +		goto out_free_gpios;
>  	}
>  
>  	dev_dbg(&pdev->dev, "%d ms scan time, buttons: %s%s%s\n",
> @@ -135,9 +135,6 @@ static int gpio_mouse_probe(struct platform_device *pdev)
>  
>  	return 0;
>  
> - out_free_polldev:
> -	input_free_polled_device(input_poll);
> -
>   out_free_gpios:
>  	while (--i >= 0) {
>  		pin = pdata->pins[i];
> @@ -154,9 +151,6 @@ static int gpio_mouse_remove(struct platform_device *pdev)
>  	struct gpio_mouse_platform_data *pdata = input->private;
>  	int pin, i;
>  
> -	input_unregister_polled_device(input);
> -	input_free_polled_device(input);
> -

This is wrong, as you now letting input device be active while gpios
are free.

Frankly, I wonder if we could not retire this driver by making gpio-keys
be more flexible... I think we discussed options to allow mode where
gpio-keys-polled "sums" the gpios for the same axis and report the
value.

>  	for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) {
>  		pin = pdata->pins[i];
>  		if (pin >= 0)
> -- 
> 2.12.2
> 

Thanks.

-- 
Dmitry

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web