From 251b427566e2cf6ec87dd479e2d3062fdbd41732 Mon Sep 17 00:00:00 2001 From: Nikolai Kondrashov Date: Sun, 10 Feb 2019 12:13:52 +0200 Subject: [PATCH] HID: uclogic: Re-initialize tablets on resume Re-initialize UC-Logic tablets on resume. UC-Logic tablet initialization and parameter retrieval cannot be separated for the large part, so simply discard the retrieved parameters after initialization. Signed-off-by: Nikolai Kondrashov Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-uclogic-core.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c index 72a3a43..8f8e445 100644 --- a/drivers/hid/hid-uclogic-core.c +++ b/drivers/hid/hid-uclogic-core.c @@ -178,6 +178,23 @@ failure: return rc; } +#ifdef CONFIG_PM +static int uclogic_resume(struct hid_device *hdev) +{ + int rc; + struct uclogic_params params; + + /* Re-initialize the device, but discard parameters */ + rc = uclogic_params_init(¶ms, hdev); + if (rc != 0) + hid_err(hdev, "failed to re-initialize the device\n"); + else + uclogic_params_cleanup(¶ms); + + return rc; +} +#endif + static int uclogic_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) @@ -261,6 +278,10 @@ static struct hid_driver uclogic_driver = { .raw_event = uclogic_raw_event, .input_mapping = uclogic_input_mapping, .input_configured = uclogic_input_configured, +#ifdef CONFIG_PM + .resume = uclogic_resume, + .reset_resume = uclogic_resume, +#endif }; module_hid_driver(uclogic_driver); -- 2.7.4