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 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ECE43E83840 for ; Mon, 16 Feb 2026 23:23:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 57AEF10E251; Mon, 16 Feb 2026 23:23:20 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=zhan.science header.i=@zhan.science header.b="trbBbA1Z"; dkim-atps=neutral X-Greylist: delayed 317 seconds by postgrey-1.36 at gabe; Mon, 16 Feb 2026 09:57:33 UTC Received: from out-179.mta0.migadu.com (out-179.mta0.migadu.com [91.218.175.179]) by gabe.freedesktop.org (Postfix) with ESMTPS id 500AA10E10B for ; Mon, 16 Feb 2026 09:57:33 +0000 (UTC) Mime-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zhan.science; s=key1; t=1771235533; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=eUTuchl87bbjf0z6lqoJU4OxzcdpLm8oToWJMNMm/EQ=; b=trbBbA1ZK7USsGShnG+154Ny8pqqf4dJpNNMMVDLIkrgrsK+QM5DRsNbkj1qPNMl8AaS4c JHfN/8o+XGzTgt9t457Xm84bArZJ9zATm8htzJ3BZPUOI7ICgqNaZuLhhv0iHtCsTh6KRL MiBEkHNG+ILALQT+TFykXLqVGxTpqAxXs1pfwBK3ias1mAgavx1HQsS4cBbUdHngThFCSs ULt/ENYZ5wMzb0lxWOcmfZwqzpO/Ms+G0KxeW/X1Duh+V9ANcbJaPMdqIEu+HSxbMCiOGq q4+AjB8Xu/ID6iIVqqk5XUBLf7idqf4tZ6YwI198dkIAfy/2zad5DBKMM76WPQ== Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Mon, 16 Feb 2026 09:51:57 +0000 Message-Id: X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: "Yifei Zhan" To: "Dmitry Baryshkov" , "Richard Acayan" Cc: "Bjorn Andersson" , "Konrad Dybcio" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Neil Armstrong" , "Jessica Zhang" , "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , "Thierry Reding" , "Sam Ravnborg" , , , Subject: Re: [PATCH 3/6] drm/panel: Add Novatek/Tianma NT37700F panel References: <20260210023300.15785-1-mailingradian@gmail.com> <20260210023300.15785-4-mailingradian@gmail.com> In-Reply-To: X-Migadu-Flow: FLOW_OUT X-Mailman-Approved-At: Mon, 16 Feb 2026 23:23:19 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Fri Feb 13, 2026 at 6:07 PM UTC, Dmitry Baryshkov wrote: > On Mon, Feb 09, 2026 at 09:32:57PM -0500, Richard Acayan wrote: >> Some Pixel 3a XL devices have a Tianma panel. Add support for it, with >> the aid of linux-mdss-dsi-panel-driver-generator. >>=20 >> Link: https://github.com/msm8916-mainline/linux-mdss-dsi-panel-driver-ge= nerator >> Signed-off-by: Richard Acayan >> --- >> drivers/gpu/drm/panel/Kconfig | 9 + >> drivers/gpu/drm/panel/Makefile | 1 + >> .../gpu/drm/panel/panel-novatek-nt37700f.c | 294 ++++++++++++++++++ >> 3 files changed, 304 insertions(+) >> create mode 100644 drivers/gpu/drm/panel/panel-novatek-nt37700f.c <--cut--> >>=20 >> +// TODO: Check if /sys/class/backlight/.../actual_brightness actually r= eturns >> +// correct values. If not, remove this function. > > Any chance of checking it? I tested this with my Pixel3A XL with tianma panel, it worked correctly. /sys/class/backlight/.../actual_brightness returns same value as /sys/class/backlight/.../brightness and I'm able to change brightness level. = = =20 Tested-by: Yifei Zhan =20 >