From patchwork Thu Jun 18 14:55:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 11612443 X-Patchwork-Delegate: jikos@jikos.cz Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D369192A for ; Thu, 18 Jun 2020 14:55:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB83E20885 for ; Thu, 18 Jun 2020 14:55:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731266AbgFROzg (ORCPT ); Thu, 18 Jun 2020 10:55:36 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:56208 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726927AbgFROzf (ORCPT ); Thu, 18 Jun 2020 10:55:35 -0400 Received: from 61-220-137-37.hinet-ip.hinet.net ([61.220.137.37] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1jlvwq-0003dk-LH; Thu, 18 Jun 2020 14:55:25 +0000 From: Kai-Heng Feng To: jikos@kernel.org, benjamin.tissoires@redhat.com Cc: Kai-Heng Feng , Hans de Goede , You-Sheng Yang , Daniel Playfair Cal , HungNien Chen , Pavel Balan , linux-input@vger.kernel.org (open list:HID CORE LAYER), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v3] HID: i2c-hid: Enable touchpad wakeup from Suspend-to-Idle Date: Thu, 18 Jun 2020 22:55:13 +0800 Message-Id: <20200618145515.5055-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.17.1 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Many laptops can be woken up from Suspend-to-Idle by touchpad. This is also the default behavior on other OSes. So let's enable the wakeup support if the system defaults to Suspend-to-Idle. Signed-off-by: Kai-Heng Feng --- v3: - Use device_init_wakeup(). - Wording change. v2: - Fix compile error when ACPI is not enabled. drivers/hid/i2c-hid/i2c-hid-core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index 294c84e136d7..dae1d072daf6 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -931,6 +931,12 @@ static void i2c_hid_acpi_fix_up_power(struct device *dev) acpi_device_fix_up_power(adev); } +static void i2c_hid_acpi_enable_wakeup(struct device *dev) +{ + if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) + device_init_wakeup(dev, true); +} + static const struct acpi_device_id i2c_hid_acpi_match[] = { {"ACPI0C50", 0 }, {"PNP0C50", 0 }, @@ -945,6 +951,8 @@ static inline int i2c_hid_acpi_pdata(struct i2c_client *client, } static inline void i2c_hid_acpi_fix_up_power(struct device *dev) {} + +static inline void i2c_hid_acpi_enable_wakeup(struct device *dev) {} #endif #ifdef CONFIG_OF @@ -1072,6 +1080,8 @@ static int i2c_hid_probe(struct i2c_client *client, i2c_hid_acpi_fix_up_power(&client->dev); + i2c_hid_acpi_enable_wakeup(&client->dev); + device_enable_async_suspend(&client->dev); /* Make sure there is something at this address */