This is a note to let you know that I've just added the patch titled

HID: sony: Use LED_CORE_SUSPENDRESUME

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: hid-sony-use-led_core_suspendresume.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 765a1077c85e5f2efcc43582f80caf43a052e903 Mon Sep 17 00:00:00 2001

From: Frank Praznik frank.praznik@gmail.com Date: Wed, 8 Feb 2017 13:58:43 -0500 Subject: HID: sony: Use LED_CORE_SUSPENDRESUME

From: Frank Praznik frank.praznik@gmail.com

commit 765a1077c85e5f2efcc43582f80caf43a052e903 upstream.

The LED subsystem provides the LED_CORE_SUSPENDRESUME flag to handle automatically turning off and restoring the state of device LEDs during suspend/resume. Use this flag instead of saving and restoring the state locally.

Signed-off-by: Frank Praznik frank.praznik@gmail.com Signed-off-by: Jiri Kosina jkosina@suse.cz Cc: Nathan Chancellor natechancellor@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/hid/hid-sony.c | 45 +++++++++++++++------------------------------ 1 file changed, 15 insertions(+), 30 deletions(-)

--- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -1056,7 +1056,6 @@ struct sony_sc { u8 battery_charging; u8 battery_capacity; u8 led_state[MAX_LEDS]; - u8 resume_led_state[MAX_LEDS]; u8 led_delay_on[MAX_LEDS]; u8 led_delay_off[MAX_LEDS]; u8 led_count; @@ -1793,6 +1792,7 @@ static int sony_leds_init(struct sony_sc led->name = name; led->brightness = sc->led_state[n]; led->max_brightness = max_brightness[n]; + led->flags = LED_CORE_SUSPENDRESUME; led->brightness_get = sony_led_get_brightness; led->brightness_set = sony_led_set_brightness;

@@ -2509,47 +2509,32 @@ static void sony_remove(struct hid_devic

static int sony_suspend(struct hid_device *hdev, pm_message_t message) { - /* - * On suspend save the current LED state, - * stop running force-feedback and blank the LEDS. - */ - if (SONY_LED_SUPPORT || SONY_FF_SUPPORT) { - struct sony_sc *sc = hid_get_drvdata(hdev); - #ifdef CONFIG_SONY_FF - sc->left = sc->right = 0; -#endif

- memcpy(sc->resume_led_state, sc->led_state, - sizeof(sc->resume_led_state)); - memset(sc->led_state, 0, sizeof(sc->led_state)); + /* On suspend stop any running force-feedback events */ + if (SONY_FF_SUPPORT) { + struct sony_sc *sc = hid_get_drvdata(hdev);

+ sc->left = sc->right = 0; sony_send_output_report(sc); }

+#endif return 0; }

static int sony_resume(struct hid_device *hdev) { - /* Restore the state of controller LEDs on resume */ - if (SONY_LED_SUPPORT) { - struct sony_sc *sc = hid_get_drvdata(hdev); - - memcpy(sc->led_state, sc->resume_led_state, - sizeof(sc->led_state)); - - /* - * The Sixaxis and navigation controllers on USB need to be - * reinitialized on resume or they won't behave properly. - */ - if ((sc->quirks & SIXAXIS_CONTROLLER_USB) || - (sc->quirks & NAVIGATION_CONTROLLER_USB)) { - sixaxis_set_operational_usb(sc->hdev); - sc->defer_initialization = 1; - } + struct sony_sc *sc = hid_get_drvdata(hdev);

- sony_set_leds(sc); + /* + * The Sixaxis and navigation controllers on USB need to be + * reinitialized on resume or they won't behave properly. + */ + if ((sc->quirks & SIXAXIS_CONTROLLER_USB) || + (sc->quirks & NAVIGATION_CONTROLLER_USB)) { + sixaxis_set_operational_usb(sc->hdev); + sc->defer_initialization = 1; }

return 0;

Patches currently in stable-queue which might be from frank.praznik@gmail.com are

queue-4.9/hid-sony-use-led_core_suspendresume.patch