[PATCH v2 22/30] HID: wacom: EKR: attach the power_supply on first connection
From: Benjamin Tissoires <hidden>
Date: 2016-07-13 16:11:04
Also in:
lkml
Subsystem:
hid core layer, hid wacom driver, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Ping Cheng, Jason Gerecke, Linus Torvalds
Or Gnome complains about an empty battery. Signed-off-by: Benjamin Tissoires <redacted> --- No changes in v2 --- 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 04f5c75..1d79215 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);
--
2.5.5