Re: [PATCH] macintosh/ams-input: switch to using input device polling mode

From: Dmitry Torokhov
Date: Mon Nov 11 2019 - 19:41:50 EST


On Wed, Oct 02, 2019 at 02:48:54PM -0700, Dmitry Torokhov wrote:
> Now that instances of input_dev support polling mode natively,
> we no longer need to create input_polled_dev instance.

Michael, could you please take this? Or I could push through my tree...

Thanks!

>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
> ---
> drivers/macintosh/Kconfig | 1 -
> drivers/macintosh/ams/ams-input.c | 37 +++++++++++++++----------------
> drivers/macintosh/ams/ams.h | 4 ++--
> 3 files changed, 20 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
> index 574e122ae105..da6a943ad746 100644
> --- a/drivers/macintosh/Kconfig
> +++ b/drivers/macintosh/Kconfig
> @@ -247,7 +247,6 @@ config PMAC_RACKMETER
> config SENSORS_AMS
> tristate "Apple Motion Sensor driver"
> depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C)
> - select INPUT_POLLDEV
> help
> Support for the motion sensor included in PowerBooks. Includes
> implementations for PMU and I2C.
> diff --git a/drivers/macintosh/ams/ams-input.c b/drivers/macintosh/ams/ams-input.c
> index 06a96b3f11de..0da493d449b2 100644
> --- a/drivers/macintosh/ams/ams-input.c
> +++ b/drivers/macintosh/ams/ams-input.c
> @@ -25,9 +25,8 @@ MODULE_PARM_DESC(invert, "Invert input data on X and Y axis");
>
> static DEFINE_MUTEX(ams_input_mutex);
>
> -static void ams_idev_poll(struct input_polled_dev *dev)
> +static void ams_idev_poll(struct input_dev *idev)
> {
> - struct input_dev *idev = dev->input;
> s8 x, y, z;
>
> mutex_lock(&ams_info.lock);
> @@ -59,14 +58,10 @@ static int ams_input_enable(void)
> ams_info.ycalib = y;
> ams_info.zcalib = z;
>
> - ams_info.idev = input_allocate_polled_device();
> - if (!ams_info.idev)
> + input = input_allocate_device();
> + if (!input)
> return -ENOMEM;
>
> - ams_info.idev->poll = ams_idev_poll;
> - ams_info.idev->poll_interval = 25;
> -
> - input = ams_info.idev->input;
> input->name = "Apple Motion Sensor";
> input->id.bustype = ams_info.bustype;
> input->id.vendor = 0;
> @@ -75,28 +70,32 @@ static int ams_input_enable(void)
> input_set_abs_params(input, ABS_X, -50, 50, 3, 0);
> input_set_abs_params(input, ABS_Y, -50, 50, 3, 0);
> input_set_abs_params(input, ABS_Z, -50, 50, 3, 0);
> + input_set_capability(input, EV_KEY, BTN_TOUCH);
>
> - set_bit(EV_ABS, input->evbit);
> - set_bit(EV_KEY, input->evbit);
> - set_bit(BTN_TOUCH, input->keybit);
> + error = input_setup_polling(input, ams_idev_poll);
> + if (error)
> + goto err_free_input;
>
> - error = input_register_polled_device(ams_info.idev);
> - if (error) {
> - input_free_polled_device(ams_info.idev);
> - ams_info.idev = NULL;
> - return error;
> - }
> + input_set_poll_interval(input, 25);
>
> + error = input_register_device(input);
> + if (error)
> + goto err_free_input;
> +
> + ams_info.idev = input;
> joystick = true;
>
> return 0;
> +
> +err_free_input:
> + input_free_device(input);
> + return error;
> }
>
> static void ams_input_disable(void)
> {
> if (ams_info.idev) {
> - input_unregister_polled_device(ams_info.idev);
> - input_free_polled_device(ams_info.idev);
> + input_unregister_device(ams_info.idev);
> ams_info.idev = NULL;
> }
>
> diff --git a/drivers/macintosh/ams/ams.h b/drivers/macintosh/ams/ams.h
> index fe8d596f9845..935bdd9cd9a6 100644
> --- a/drivers/macintosh/ams/ams.h
> +++ b/drivers/macintosh/ams/ams.h
> @@ -1,6 +1,6 @@
> /* SPDX-License-Identifier: GPL-2.0 */
> #include <linux/i2c.h>
> -#include <linux/input-polldev.h>
> +#include <linux/input.h>
> #include <linux/kthread.h>
> #include <linux/mutex.h>
> #include <linux/spinlock.h>
> @@ -51,7 +51,7 @@ struct ams {
> #endif
>
> /* Joystick emulation */
> - struct input_polled_dev *idev;
> + struct input_dev *idev;
> __u16 bustype;
>
> /* calibrated null values */
> --
> 2.23.0.444.g18eeb5a265-goog
>
>
> --
> Dmitry

--
Dmitry