From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4E70C2D0DB for ; Wed, 22 Jan 2020 09:31:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 77B4E24672 for ; Wed, 22 Jan 2020 09:31:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579685474; bh=uVCNl6SSGH/xdURKbmYyLK7yEWgY0GtaC9ejSr1F9eQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=f1XSNbmbFT6S5I+OQTtgpxobFWnreESpEZjmugL5HTXhjPha9KEszpzM8pIMghfQU 4+LzzIBl3VRkUU44tY64xHIm8Jr6vMIJLU4zJz08cok+BK+VZLRgYTu9o3qZ/8hlUG KraNai2xivvCqPzVJNRlGsxCTcubt6PVZ4sl80/Y= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729596AbgAVJbN (ORCPT ); Wed, 22 Jan 2020 04:31:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:43040 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729537AbgAVJbJ (ORCPT ); Wed, 22 Jan 2020 04:31:09 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2784A2467B; Wed, 22 Jan 2020 09:31:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579685468; bh=uVCNl6SSGH/xdURKbmYyLK7yEWgY0GtaC9ejSr1F9eQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tbikjrwwkvw4z35atT9xFiGLhSSF7vnkEbNKZgHrDKikXllk2Z20+5HZsalHpweVc RAJ2piMKst725Zl4SIhc/w1NCRKnbCoVTuGYoO/vuuFwFwvt/FmgP5HVm0JiXk2XCN /MTUsfx77M/2TlrFgZon3CGEnJjBqT/VvZ28gxHI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jian-Hong Pan , Daniel Drake , Andy Shevchenko Subject: [PATCH 4.4 26/76] platform/x86: asus-wmi: Fix keyboard brightness cannot be set to 0 Date: Wed, 22 Jan 2020 10:28:42 +0100 Message-Id: <20200122092754.411204098@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200122092751.587775548@linuxfoundation.org> References: <20200122092751.587775548@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jian-Hong Pan commit 176a7fca81c5090a7240664e3002c106d296bf31 upstream. Some of ASUS laptops like UX431FL keyboard backlight cannot be set to brightness 0. According to ASUS' information, the brightness should be 0x80 ~ 0x83. This patch fixes it by following the logic. Fixes: e9809c0b9670 ("asus-wmi: add keyboard backlight support") Signed-off-by: Jian-Hong Pan Reviewed-by: Daniel Drake Signed-off-by: Andy Shevchenko Signed-off-by: Greg Kroah-Hartman --- drivers/platform/x86/asus-wmi.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -452,13 +452,7 @@ static void kbd_led_update(struct work_s asus = container_of(work, struct asus_wmi, kbd_led_work); - /* - * bits 0-2: level - * bit 7: light on/off - */ - if (asus->kbd_led_wk > 0) - ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F); - + ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F); asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL); }