From patchwork Wed Nov 14 22:22:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Levin X-Patchwork-Id: 10683253 X-Patchwork-Delegate: jikos@jikos.cz Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3497417F3 for ; Wed, 14 Nov 2018 22:40:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 255792BC10 for ; Wed, 14 Nov 2018 22:40:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 19EF42BCF2; Wed, 14 Nov 2018 22:40:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7F6DD2BC10 for ; Wed, 14 Nov 2018 22:40:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387853AbeKOI2s (ORCPT ); Thu, 15 Nov 2018 03:28:48 -0500 Received: from mail.kernel.org ([198.145.29.99]:35782 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726480AbeKOI2s (ORCPT ); Thu, 15 Nov 2018 03:28:48 -0500 Received: from sasha-vm.mshome.net (unknown [64.114.255.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C079622513; Wed, 14 Nov 2018 22:23:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1542234223; bh=T72EJMuj2HLn+ZWDwg3p5TPZkU1/0JbEr7f7nk355Bw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kGcxk9X0DIHJW8+FX50jXwipeZwqSnCTorsQ4uV3vuX+Iq3ELshciM+JT8f9auYwC ZgGHP+qMThAp+gocKhi/C98cxattFxVJUW9mI17C64za8ccmVnaEaBtBbOzr6tma6D 03qjV/C0Bno4/ZZevV/Lkpvy9FfjrNHAWx+pAaoc= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Kai-Heng Feng , Jiri Kosina , Sasha Levin , linux-input@vger.kernel.org Subject: [PATCH AUTOSEL 4.18 02/59] HID: i2c-hid: Add a small delay after sleep command for Raydium touchpanel Date: Wed, 14 Nov 2018 17:22:34 -0500 Message-Id: <20181114222335.99339-2-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181114222335.99339-1-sashal@kernel.org> References: <20181114222335.99339-1-sashal@kernel.org> Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kai-Heng Feng [ Upstream commit 00b790ea545b6ef30221adef6e9c3707e03b82b5 ] Raydium touchpanel (2386:4B33) sometimes does not work in desktop session although it works in display manager. During user logging, the display manager exits, close the HID device, then the device gets runtime suspended and powered off. The desktop session begins shortly after, opens the HID device, then the device gets runtime resumed and powered on. If the trasition from display manager to desktop sesesion is fast, the touchpanel cannot switch from powered off to powered on in short timeframe. So add a small delay to workaround the issue. Signed-off-by: Kai-Heng Feng Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- drivers/hid/hid-ids.h | 3 +++ drivers/hid/i2c-hid/i2c-hid.c | 19 +++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index ae5b72269e27..7e61af2f0976 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -919,6 +919,9 @@ #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3003 0x3003 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008 0x3008 +#define I2C_VENDOR_ID_RAYDIUM 0x2386 +#define I2C_PRODUCT_ID_RAYDIUM_4B33 0x4b33 + #define USB_VENDOR_ID_RAZER 0x1532 #define USB_DEVICE_ID_RAZER_BLADE_14 0x011D diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index d17cf6e323b2..d835fd02da4f 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -48,6 +48,7 @@ #define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV BIT(0) #define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET BIT(1) #define I2C_HID_QUIRK_NO_RUNTIME_PM BIT(2) +#define I2C_HID_QUIRK_DELAY_AFTER_SLEEP BIT(3) /* flags */ #define I2C_HID_STARTED 0 @@ -157,6 +158,8 @@ struct i2c_hid { bool irq_wake_enabled; struct mutex reset_lock; + + unsigned long sleep_delay; }; static const struct i2c_hid_quirks { @@ -171,6 +174,8 @@ static const struct i2c_hid_quirks { { I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288, I2C_HID_QUIRK_NO_IRQ_AFTER_RESET | I2C_HID_QUIRK_NO_RUNTIME_PM }, + { I2C_VENDOR_ID_RAYDIUM, I2C_PRODUCT_ID_RAYDIUM_4B33, + I2C_HID_QUIRK_DELAY_AFTER_SLEEP }, { 0, 0 } }; @@ -386,6 +391,7 @@ static int i2c_hid_set_power(struct i2c_client *client, int power_state) { struct i2c_hid *ihid = i2c_get_clientdata(client); int ret; + unsigned long now, delay; i2c_hid_dbg(ihid, "%s\n", __func__); @@ -403,9 +409,22 @@ static int i2c_hid_set_power(struct i2c_client *client, int power_state) goto set_pwr_exit; } + if (ihid->quirks & I2C_HID_QUIRK_DELAY_AFTER_SLEEP && + power_state == I2C_HID_PWR_ON) { + now = jiffies; + if (time_after(ihid->sleep_delay, now)) { + delay = jiffies_to_usecs(ihid->sleep_delay - now); + usleep_range(delay, delay + 1); + } + } + ret = __i2c_hid_command(client, &hid_set_power_cmd, power_state, 0, NULL, 0, NULL, 0); + if (ihid->quirks & I2C_HID_QUIRK_DELAY_AFTER_SLEEP && + power_state == I2C_HID_PWR_SLEEP) + ihid->sleep_delay = jiffies + msecs_to_jiffies(20); + if (ret) dev_err(&client->dev, "failed to change power setting.\n");