* [PATCH] HID: hidraw: fix power sequence when closing device
@ 2017-09-20 1:37 Dmitry Torokhov
2017-09-20 1:45 ` Guenter Roeck
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Dmitry Torokhov @ 2017-09-20 1:37 UTC (permalink / raw)
To: Jiri Kosina
Cc: Benjamin Tissoires, Benson Leung, Oliver Neukum, Guenter Roeck,
linux-input, linux-kernel
We should not try to bring HID device out of full power state before
calling hid_hw_close(), so that transport driver operates on powered up
device (making this inverse of the opening sequence).
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/hid/hidraw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index ec530454e6f6..5fbe0f81ab2e 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -337,8 +337,8 @@ static void drop_ref(struct hidraw *hidraw, int exists_bit)
kfree(hidraw);
} else {
/* close device for last reader */
- hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
hid_hw_close(hidraw->hid);
+ hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
}
}
}
--
2.14.1.821.g8fa685d3b7-goog
--
Dmitry
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] HID: hidraw: fix power sequence when closing device
2017-09-20 1:37 [PATCH] HID: hidraw: fix power sequence when closing device Dmitry Torokhov
@ 2017-09-20 1:45 ` Guenter Roeck
2017-09-20 6:37 ` Benson Leung
2017-10-02 9:46 ` Jiri Kosina
2 siblings, 0 replies; 4+ messages in thread
From: Guenter Roeck @ 2017-09-20 1:45 UTC (permalink / raw)
To: Dmitry Torokhov
Cc: Jiri Kosina, Benjamin Tissoires, Benson Leung, Oliver Neukum,
Guenter Roeck, linux-input, linux-kernel
On Tue, Sep 19, 2017 at 6:37 PM, Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> We should not try to bring HID device out of full power state before
> calling hid_hw_close(), so that transport driver operates on powered up
> device (making this inverse of the opening sequence).
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
> ---
> drivers/hid/hidraw.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
> index ec530454e6f6..5fbe0f81ab2e 100644
> --- a/drivers/hid/hidraw.c
> +++ b/drivers/hid/hidraw.c
> @@ -337,8 +337,8 @@ static void drop_ref(struct hidraw *hidraw, int exists_bit)
> kfree(hidraw);
> } else {
> /* close device for last reader */
> - hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
> hid_hw_close(hidraw->hid);
> + hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
> }
> }
> }
> --
> 2.14.1.821.g8fa685d3b7-goog
>
>
> --
> Dmitry
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] HID: hidraw: fix power sequence when closing device
2017-09-20 1:37 [PATCH] HID: hidraw: fix power sequence when closing device Dmitry Torokhov
2017-09-20 1:45 ` Guenter Roeck
@ 2017-09-20 6:37 ` Benson Leung
2017-10-02 9:46 ` Jiri Kosina
2 siblings, 0 replies; 4+ messages in thread
From: Benson Leung @ 2017-09-20 6:37 UTC (permalink / raw)
To: Dmitry Torokhov
Cc: Jiri Kosina, Benjamin Tissoires, Benson Leung, Oliver Neukum,
Guenter Roeck, linux-input, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 539 bytes --]
Hi Dmitry,
On Tue, Sep 19, 2017 at 06:37:46PM -0700, Dmitry Torokhov wrote:
> We should not try to bring HID device out of full power state before
> calling hid_hw_close(), so that transport driver operates on powered up
> device (making this inverse of the opening sequence).
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
--
Benson Leung
Staff Software Engineer
Chrome OS Kernel
Google Inc.
bleung@google.com
Chromium OS Project
bleung@chromium.org
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] HID: hidraw: fix power sequence when closing device
2017-09-20 1:37 [PATCH] HID: hidraw: fix power sequence when closing device Dmitry Torokhov
2017-09-20 1:45 ` Guenter Roeck
2017-09-20 6:37 ` Benson Leung
@ 2017-10-02 9:46 ` Jiri Kosina
2 siblings, 0 replies; 4+ messages in thread
From: Jiri Kosina @ 2017-10-02 9:46 UTC (permalink / raw)
To: Dmitry Torokhov
Cc: Benjamin Tissoires, Benson Leung, Oliver Neukum, Guenter Roeck,
linux-input, linux-kernel
On Tue, 19 Sep 2017, Dmitry Torokhov wrote:
> We should not try to bring HID device out of full power state before
> calling hid_hw_close(), so that transport driver operates on powered up
> device (making this inverse of the opening sequence).
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Applied to for-4.14/upstream-fixes. Thanks,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 4+ messages in thread
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2017-09-20 1:37 [PATCH] HID: hidraw: fix power sequence when closing device Dmitry Torokhov
2017-09-20 1:45 ` Guenter Roeck
2017-09-20 6:37 ` Benson Leung
2017-10-02 9:46 ` Jiri Kosina
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