From 9f1015d45f62d3b1c6719a1ccffaded89b157e10 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 13 Jul 2016 18:06:09 +0200 Subject: [PATCH] HID: wacom: EKR: attach the power_supply on first connection Or Gnome complains about an empty battery. Signed-off-by: Benjamin Tissoires Acked-by: Ping Cheng Signed-off-by: Jiri Kosina --- drivers/hid/wacom_sys.c | 36 ++++++++++++++++++++++++++++++------ 1 file changed, 30 insertions(+), 6 deletions(-) diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 04f5c753c868..1d79215a7968 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -1917,6 +1917,10 @@ static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index) remote->remotes[index].registered = false; spin_unlock_irqrestore(&remote->remote_lock, flags); + if (remote->remotes[index].battery.battery) + devres_release_group(&wacom->hdev->dev, + &remote->remotes[index].battery.bat_desc); + if (remote->remotes[index].group.name) devres_release_group(&wacom->hdev->dev, &remote->remotes[index]); @@ -1926,6 +1930,7 @@ static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index) remote->remotes[i].serial = 0; remote->remotes[i].group.name = NULL; remote->remotes[i].registered = false; + remote->remotes[i].battery.battery = NULL; wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; } } @@ -1982,11 +1987,6 @@ static int wacom_remote_create_one(struct wacom *wacom, u32 serial, if (error) goto fail; - error = __wacom_initialize_battery(wacom, - &remote->remotes[index].battery); - if (error) - goto fail; - remote->remotes[index].registered = true; devres_close_group(dev, &remote->remotes[index]); @@ -1998,6 +1998,28 @@ fail: return error; } +static int wacom_remote_attach_battery(struct wacom *wacom, int index) +{ + struct wacom_remote *remote = wacom->remote; + int error; + + if (!remote->remotes[index].registered) + return 0; + + if (remote->remotes[index].battery.battery) + return 0; + + if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN) + return 0; + + error = __wacom_initialize_battery(wacom, + &wacom->remote->remotes[index].battery); + if (error) + return error; + + return 0; +} + static void wacom_remote_work(struct work_struct *work) { struct wacom *wacom = container_of(work, struct wacom, remote_work); @@ -2028,8 +2050,10 @@ static void wacom_remote_work(struct work_struct *work) serial = data.remote[i].serial; if (data.remote[i].connected) { - if (remote->remotes[i].serial == serial) + if (remote->remotes[i].serial == serial) { + wacom_remote_attach_battery(wacom, i); continue; + } if (remote->remotes[i].serial) wacom_remote_destroy_one(wacom, i); -- 2.20.1