From nobody Mon Feb 9 22:05:21 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5C91C7EE26 for ; Tue, 23 May 2023 19:32:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238452AbjEWTcP (ORCPT ); Tue, 23 May 2023 15:32:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37688 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238374AbjEWTb6 (ORCPT ); Tue, 23 May 2023 15:31:58 -0400 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 794AE1B1 for ; Tue, 23 May 2023 12:31:27 -0700 (PDT) Received: by mail-pj1-x102a.google.com with SMTP id 98e67ed59e1d1-2533b600d35so81794a91.1 for ; Tue, 23 May 2023 12:31:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1684870283; x=1687462283; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RElRUe6c5U22wJoZKUO9d5F+6/ihbFh+CEUviCApg18=; b=gPO35OoiNWoO7ZysbWi2OUQ4D7TrdGXtwOFaCF4z03gwyCAbErQuja6ebLBdrq5YMZ trWC4RgPiZvyLIRRIoI0qTdQ5sxoQbcnYIUX/gyyxML7n+kFRJ8AIUEJnJEhiIWIR3/K UAl8nRa9bQpsX3bu9TGjp+9r/U7mkUjnFOqFg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684870283; x=1687462283; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RElRUe6c5U22wJoZKUO9d5F+6/ihbFh+CEUviCApg18=; b=Z6oRu0jXb0bFyIWr4Euirbf/2104JdBaBxhKSlALIJwdS4oxQnuC1FRXib2FgZ3FuF Q1+AXEDRRWmA/dCkJFNYt1XO7R7U7i5l9fQv4BEVIQ9qNt7hw88jPYVLugyffJs5LcAX wFy/9g62cHiaXzTcoOZ8HkTeIFALwQXkWNBbBAVjbRaReOfpg+QzQc9tJGX0mCVfGfNy Q/afchUAFpdAVmgDa7TYgd6ZaMA5jR/2d5xJMe6fSvdK+wL3WkMH2aYfXHBQERFsHHAw +7g7Rx9U7aCQbq81EZpQUUUTwUEvCTM795E4vdBuTX3iUkv3tax4vqeyh7CNmbN0FQJo NruA== X-Gm-Message-State: AC+VfDycfD63RFaNlSvGVTUJNyk43kDFLT88bzEF6xGj3Xam019vMZwE w8niwplGu5hs53NZ8A0Ip5031A== X-Google-Smtp-Source: ACHHUZ6DprQ5f/5LNGKHojUT8L9gzkN6Sw082zI2G1Ld/p4fFXuiTtQtkCkJyR4W3CxrNr4idrf96Q== X-Received: by 2002:a17:90a:6ba1:b0:252:75ed:eff5 with SMTP id w30-20020a17090a6ba100b0025275edeff5mr13464518pjj.30.1684870283271; Tue, 23 May 2023 12:31:23 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:af98:af9d:ed15:f8b3]) by smtp.gmail.com with ESMTPSA id y18-20020a170902b49200b001aaef9d0102sm7109947plr.197.2023.05.23.12.31.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 May 2023 12:31:22 -0700 (PDT) From: Douglas Anderson To: Jiri Kosina , Benjamin Tissoires , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Sam Ravnborg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann Cc: dri-devel@lists.freedesktop.org, linux-input@vger.kernel.org, Dmitry Torokhov , hsinyi@google.com, devicetree@vger.kernel.org, yangcong5@huaqin.corp-partner.google.com, linux-kernel@vger.kernel.org, Daniel Vetter , linux-arm-msm@vger.kernel.org, cros-qcom-dts-watchers@chromium.org, Douglas Anderson Subject: [PATCH 6/9] HID: i2c-hid: Make suspend and resume into helper functions Date: Tue, 23 May 2023 12:28:00 -0700 Message-ID: <20230523122802.6.I5c9894789b8b02f029bf266ae9b4f43c7907a173@changeid> X-Mailer: git-send-email 2.40.1.698.g37aff9b760-goog In-Reply-To: <20230523193017.4109557-1-dianders@chromium.org> References: <20230523193017.4109557-1-dianders@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" In a future patch we'd like to be able to call the current i2c-hid suspend and resume functions from times other than system suspend. Move the functions higher up in the file and have them take a "struct i2c_hid" to make this simpler. We'll then add tiny wrappers of the functions for use with system suspend. This change is expected to have no functional effect. Signed-off-by: Douglas Anderson --- drivers/hid/i2c-hid/i2c-hid-core.c | 98 +++++++++++++++++------------- 1 file changed, 56 insertions(+), 42 deletions(-) diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-h= id-core.c index fb5ebf3ca739..34c0d98b4976 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -941,6 +941,57 @@ static void i2c_hid_core_shutdown_tail(struct i2c_hid = *ihid) ihid->ops->shutdown_tail(ihid->ops); } =20 +static int i2c_hid_core_suspend(struct i2c_hid *ihid) +{ + struct i2c_client *client =3D ihid->client; + struct hid_device *hid =3D ihid->hid; + int ret; + + ret =3D hid_driver_suspend(hid, PMSG_SUSPEND); + if (ret < 0) + return ret; + + /* Save some power */ + i2c_hid_set_power(ihid, I2C_HID_PWR_SLEEP); + + disable_irq(client->irq); + + if (!device_may_wakeup(&client->dev)) + i2c_hid_core_power_down(ihid); + + return 0; +} + +static int i2c_hid_core_resume(struct i2c_hid *ihid) +{ + struct i2c_client *client =3D ihid->client; + struct hid_device *hid =3D ihid->hid; + int ret; + + if (!device_may_wakeup(&client->dev)) + i2c_hid_core_power_up(ihid); + + enable_irq(client->irq); + + /* Instead of resetting device, simply powers the device on. This + * solves "incomplete reports" on Raydium devices 2386:3118 and + * 2386:4B33 and fixes various SIS touchscreens no longer sending + * data after a suspend/resume. + * + * However some ALPS touchpads generate IRQ storm without reset, so + * let's still reset them here. + */ + if (ihid->quirks & I2C_HID_QUIRK_RESET_ON_RESUME) + ret =3D i2c_hid_hwreset(ihid); + else + ret =3D i2c_hid_set_power(ihid, I2C_HID_PWR_ON); + + if (ret) + return ret; + + return hid_driver_reset_resume(hid); +} + /** * i2c_hid_core_initial_power_up() - First time power up of the i2c-hid de= vice. * @ihid: The ihid object created during probe. @@ -1115,61 +1166,24 @@ void i2c_hid_core_shutdown(struct i2c_client *clien= t) } EXPORT_SYMBOL_GPL(i2c_hid_core_shutdown); =20 -static int i2c_hid_core_suspend(struct device *dev) +static int i2c_hid_core_pm_suspend(struct device *dev) { struct i2c_client *client =3D to_i2c_client(dev); struct i2c_hid *ihid =3D i2c_get_clientdata(client); - struct hid_device *hid =3D ihid->hid; - int ret; - - ret =3D hid_driver_suspend(hid, PMSG_SUSPEND); - if (ret < 0) - return ret; =20 - /* Save some power */ - i2c_hid_set_power(ihid, I2C_HID_PWR_SLEEP); - - disable_irq(client->irq); - - if (!device_may_wakeup(&client->dev)) - i2c_hid_core_power_down(ihid); - - return 0; + return i2c_hid_core_suspend(ihid); } =20 -static int i2c_hid_core_resume(struct device *dev) +static int i2c_hid_core_pm_resume(struct device *dev) { - int ret; struct i2c_client *client =3D to_i2c_client(dev); struct i2c_hid *ihid =3D i2c_get_clientdata(client); - struct hid_device *hid =3D ihid->hid; =20 - if (!device_may_wakeup(&client->dev)) - i2c_hid_core_power_up(ihid); - - enable_irq(client->irq); - - /* Instead of resetting device, simply powers the device on. This - * solves "incomplete reports" on Raydium devices 2386:3118 and - * 2386:4B33 and fixes various SIS touchscreens no longer sending - * data after a suspend/resume. - * - * However some ALPS touchpads generate IRQ storm without reset, so - * let's still reset them here. - */ - if (ihid->quirks & I2C_HID_QUIRK_RESET_ON_RESUME) - ret =3D i2c_hid_hwreset(ihid); - else - ret =3D i2c_hid_set_power(ihid, I2C_HID_PWR_ON); - - if (ret) - return ret; - - return hid_driver_reset_resume(hid); + return i2c_hid_core_resume(ihid); } =20 const struct dev_pm_ops i2c_hid_core_pm =3D { - SYSTEM_SLEEP_PM_OPS(i2c_hid_core_suspend, i2c_hid_core_resume) + SYSTEM_SLEEP_PM_OPS(i2c_hid_core_pm_suspend, i2c_hid_core_pm_resume) }; EXPORT_SYMBOL_GPL(i2c_hid_core_pm); =20 --=20 2.40.1.698.g37aff9b760-goog