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=-6.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 36361C2BA16 for ; Tue, 7 Apr 2020 06:07:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 119482051A for ; Tue, 7 Apr 2020 06:07:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726833AbgDGGHl convert rfc822-to-8bit (ORCPT ); Tue, 7 Apr 2020 02:07:41 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:34641 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726232AbgDGGHk (ORCPT ); Tue, 7 Apr 2020 02:07:40 -0400 Received: from mail-pg1-f200.google.com ([209.85.215.200]) by youngberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1jLhOc-0005XK-8h for linux-kernel@vger.kernel.org; Tue, 07 Apr 2020 06:07:38 +0000 Received: by mail-pg1-f200.google.com with SMTP id e22so591568pgm.22 for ; Mon, 06 Apr 2020 23:07:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=rKcIrGYLaZasUY/dGlYc6IfmlJJj/4gRzNcvO+62t4g=; b=nfUSIZTzHStl2Zl+coC6Xj/u3MlfMEsHuyybUFKPRlIyIld9iXGxMA4hJWUR19zt90 ilKhumQe1d72OnMz3mZwV9y3cMMCTpr5hncviWw2+wI/8GmbKqkUuVQMs9EiY3U0eIs7 qd1ow7HP7XcsmLcxvVsB7OKNrUNsRt56JVzTwRHynV7hYTeNarAKh83JtgisOgeLF00k GxlcvvGAH6Wyyo5RJwszzZUgP/vBV984Cgu1R/iz7FqlQnlq1WX3CCscq+ZKd1qUprs2 F/gu+sziIUEGuUxcjKacMhXY8U6ob9qsiTnvgUiBHwhgND+IcSHA5k9YnCmvsXyoe2aw EfkA== X-Gm-Message-State: AGi0PuY0I3udrrXD7QoLMdphSwowVbVHIxjJmebaBxHEjzU6zUJOcxnL xvY/YMsEsAEcSG71/248voUgqZZIyOaFfAVYWbthxh1t0BiLfZCsRmln7nPjoQEM+PMJyQ4gupB 6J7Ux1Vc0QXCc0+6yiY+mDc18UEB37ZiIOiLhH2u8Bw== X-Received: by 2002:a17:902:bc4b:: with SMTP id t11mr1002696plz.2.1586239656387; Mon, 06 Apr 2020 23:07:36 -0700 (PDT) X-Google-Smtp-Source: APiQypIIVyuQxWKtSF5cfUw0BN07y2sRFKFXDRNq7JG6JKzUKbDp/X7Mq47CYE5saZCyJub5T1wzhg== X-Received: by 2002:a17:902:bc4b:: with SMTP id t11mr1002678plz.2.1586239656091; Mon, 06 Apr 2020 23:07:36 -0700 (PDT) Received: from [192.168.1.208] (220-133-187-190.HINET-IP.hinet.net. [220.133.187.190]) by smtp.gmail.com with ESMTPSA id 8sm13108207pfv.65.2020.04.06.23.07.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Apr 2020 23:07:35 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Subject: Re: [PATCH] drm/i915: Force DPCD backlight mode for HP Spectre x360 Convertible 13t-aw100 From: Kai-Heng Feng In-Reply-To: <41FD4AD2-81F9-45E8-B5D6-9CC255D0581B@canonical.com> Date: Tue, 7 Apr 2020 14:07:33 +0800 Cc: Thomas Zimmermann , "open list:DRM DRIVERS" , open list Content-Transfer-Encoding: 8BIT Message-Id: <1F57CA05-3E23-4CA8-A138-6785906ED465@canonical.com> References: <20200323053528.3147-1-kai.heng.feng@canonical.com> <41FD4AD2-81F9-45E8-B5D6-9CC255D0581B@canonical.com> To: Maarten Lankhorst , mripard@kernel.org, David Airlie , Daniel Vetter , "Deucher, Alexander" X-Mailer: Apple Mail (2.3608.80.23.2.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Mar 27, 2020, at 19:03, Kai-Heng Feng wrote: > > Hi, > >> On Mar 23, 2020, at 13:35, Kai-Heng Feng wrote: >> >> There's another OLED panel needs to use DPCD aux interface to control >> backlight. >> >> BugLink: https://bugs.launchpad.net/bugs/1860303 >> Signed-off-by: Kai-Heng Feng > > Would it be possible to review this? > I'd like to send a similar quirk for a new panel, and I want to avoid causing any merge conflict. Another gentle ping... > > Kai-Heng > >> --- >> drivers/gpu/drm/drm_dp_helper.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c >> index 8ba4531e808d..a0d4314663de 100644 >> --- a/drivers/gpu/drm/drm_dp_helper.c >> +++ b/drivers/gpu/drm/drm_dp_helper.c >> @@ -1301,6 +1301,8 @@ static const struct edid_quirk edid_quirk_list[] = { >> * only supports DPCD backlight controls >> */ >> { MFG(0x4c, 0x83), PROD_ID(0x41, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) }, >> + /* HP Spectre x360 Convertible 13t-aw100 */ >> + { MFG(0x4c, 0x83), PROD_ID(0x42, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) }, >> /* >> * Some Dell CML 2020 systems have panels support both AUX and PWM >> * backlight control, and some only support AUX backlight control. All >> -- >> 2.17.1 >> >