On Aug 03 2015 or thereabouts, Jason Gerecke wrote:
> WACOM_QUIRK_NO_INPUT is a signal to the driver that input devices
> should not be created for a particular device. This quirk was used by
> the wireless receiver to prevent any devices from being created during
> the initial probe (defering it instead until we got a tablet connection
> event in 'wacom_wireless_work').
>
> This quirk is not necessary now that a device_type is associated with each
> device. Any input device allocated by 'wacom_allocate_inputs' which is
> not necessary for a particular device is freed in 'wacom_register_inputs'.
> In particular, none of the wireless receivers devices have the pen, pad,
> or touch device types set so the same effect is achieved without the need
> to be explicit.
>
> We now return early in wacom_retrieve_hid_descriptor for wireless devices
> (to prevent the device_type from being overridden) but since we ignore the
> HID descriptor for the wireless reciever anyway, this is not an issue.
>
> Signed-off-by: Jason Gerecke <jason.gere...@wacom.com>
> ---
This series is a nice cleanup.
For the 3 in this series:
Reviewed-by: Benjamin Tissoires <benjamin.tissoi...@redhat.com>
Cheers,
Benjamin
> drivers/hid/wacom_sys.c | 24 ++++++++++--------------
> drivers/hid/wacom_wac.c | 4 ----
> drivers/hid/wacom_wac.h | 1 -
> 3 files changed, 10 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
> index 13834ba..20d15c5 100644
> --- a/drivers/hid/wacom_sys.c
> +++ b/drivers/hid/wacom_sys.c
> @@ -453,11 +453,11 @@ static void wacom_retrieve_hid_descriptor(struct
> hid_device *hdev,
> * interface number.
> */
> if (features->type == WIRELESS) {
> - if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
> + if (intf->cur_altsetting->desc.bInterfaceNumber == 0)
> features->device_type = WACOM_DEVICETYPE_WL_MONITOR;
> - } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) {
> - features->device_type |= WACOM_DEVICETYPE_TOUCH;
> - }
> + else
> + features->device_type = WACOM_DEVICETYPE_NONE;
> + return;
> }
>
> wacom_parse_hid(hdev, features);
> @@ -1531,11 +1531,9 @@ static int wacom_probe(struct hid_device *hdev,
> mutex_init(&wacom->lock);
> INIT_WORK(&wacom->work, wacom_wireless_work);
>
> - if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
> - error = wacom_allocate_inputs(wacom);
> - if (error)
> - goto fail_allocate_inputs;
> - }
> + error = wacom_allocate_inputs(wacom);
> + if (error)
> + goto fail_allocate_inputs;
>
> /*
> * Bamboo Pad has a generic hid handling for the Pen, and we switch it
> @@ -1588,11 +1586,9 @@ static int wacom_probe(struct hid_device *hdev,
> goto fail_battery;
> }
>
> - if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
> - error = wacom_register_inputs(wacom);
> - if (error)
> - goto fail_register_inputs;
> - }
> + error = wacom_register_inputs(wacom);
> + if (error)
> + goto fail_register_inputs;
>
> if (hdev->bus == BUS_BLUETOOTH) {
> error = device_create_file(&hdev->dev, &dev_attr_speed);
> diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
> index 82bb0d3..4d11c78 100644
> --- a/drivers/hid/wacom_wac.c
> +++ b/drivers/hid/wacom_wac.c
> @@ -2326,10 +2326,6 @@ void wacom_setup_device_quirks(struct wacom *wacom)
> }
>
> if (features->type == WIRELESS) {
> -
> - /* monitor never has input and pen/touch have delayed create */
> - features->quirks |= WACOM_QUIRK_NO_INPUT;
> -
> if (features->device_type == WACOM_DEVICETYPE_WL_MONITOR) {
> features->quirks |= WACOM_QUIRK_BATTERY;
> }
> diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
> index 87df674..6233eea 100644
> --- a/drivers/hid/wacom_wac.h
> +++ b/drivers/hid/wacom_wac.h
> @@ -68,7 +68,6 @@
>
> /* device quirks */
> #define WACOM_QUIRK_BBTOUCH_LOWRES 0x0001
> -#define WACOM_QUIRK_NO_INPUT 0x0002
> #define WACOM_QUIRK_BATTERY 0x0008
>
> /* device types */
> --
> 2.4.6
>
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