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 7C870E78D6E for ; Mon, 9 Feb 2026 09:15:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5F9DD10E35A; Mon, 9 Feb 2026 09:15:36 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=huaqin-corp-partner-google-com.20230601.gappssmtp.com header.i=@huaqin-corp-partner-google-com.20230601.gappssmtp.com header.b="zQtO64l7"; dkim-atps=neutral Received: from mail-pf1-f181.google.com (mail-pf1-f181.google.com [209.85.210.181]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8BEF310E134 for ; Mon, 9 Feb 2026 09:15:35 +0000 (UTC) Received: by mail-pf1-f181.google.com with SMTP id d2e1a72fcca58-81f5381d168so4635123b3a.2 for ; Mon, 09 Feb 2026 01:15:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=huaqin-corp-partner-google-com.20230601.gappssmtp.com; s=20230601; t=1770628535; x=1771233335; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=uzRq34MjMHjmNuJekfYZ0C5Yepr0yqm/km8XPEg6KcA=; b=zQtO64l78Gzwv5nFreqW/pZuju0Xz21OFTaSou9lviQideqp53lSkd+QPdTYehKN7e cdVdFUZ9kTnzcMucDN6n/VeK30Bf1GAs69b+tlnQxwuDjL6hK/YH9BMQCJIbDQpep73Q OQT8BfW/BZXXyCdPwW1Pri+rQ9hnwo460GnbV1iimUvc8grbbCOtDUZdFkBOQQQ0bg31 KL9Fu08hsTFs0OrH3hingPu2cvvkDWPwkpYNqn8ZGlzb23m+LkRBFNPeFy4ZICHOFwcr 0r9rK/tw7xi36vV06m1BbzGGnKJgzSw+m3ZMAYR9eMtDyH2vBgoMSYeOZn7Cik9xQ/p2 T1Rg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770628535; x=1771233335; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=uzRq34MjMHjmNuJekfYZ0C5Yepr0yqm/km8XPEg6KcA=; b=aMDo8P0ZJEm9GvhCUeotJy+Vnt9DWwsx1ZPnsGkCPJjOJJlHvdX/p0KObeKTXJjrEi 3fMVurd4FI5mktAxgV5CeAANfUZIWvwa4JFeuA3RSZCLfgGqG85bXynMDS1US2ADxXI1 mAFzwpqViFF+B6faX0bJOAgzMfmWQgMcufuD9YOYIybRIVir1++Zn1DegOdgxNhpGZT7 vyKU7i2XfzXaOIUS6w3UUawLun4uwwIpEtV5x6k2OlJdeNgco8bwT1aG+D5eHgc4Icd5 b1Eqai5sYq7FybTaQThqAm9l7CugdvtuUe8vSfFrWdjw82DuirrxoORZTlN6mSK7MH4G zDUg== X-Gm-Message-State: AOJu0YyXTfyI60sP2G11ehCholOyEbJPCdKLadjtZiK1POXcuetLu4lJ DVw0Yj2T23lz8k0wRpZ0aOevIhv2Pr7R2Jsu4gLyHCVi8dAtPLFlTRHT6DEtDVQ6/z4IcMIQCf6 2Qax2OYI= X-Gm-Gg: AZuq6aKlr9t8D41yU2vm65UrpjOuamk8zBe3BQTu7/eaGmafV+im4CmmcRoNKcaVyLY VNG0cztmUCKtcRhmKDTJ0ScsRJnGMciyG58FIoqGgItYtj+zzsNP6qjH4HBStgOpiNuezfzDyiP auPu/XptCpnhguUimy6e3qDsMrlEk2qGJmgZIHl53YWrnf8Kv3k+WZrASCxTnbNvqJJLWgApODk KU+0AsgDdmJEKWJo6P+r30BjbuvoedA/Xmb+QR9EJeMmnkV0z8UI8xiz0WkeQlfqxFHK3Q/Oit9 Vu1ktvMcyMXdNCN1UWh/c9RQ6kcjJlV8uXVd96mHXNfB0cnKMhl7J9MFVlSzmxbfEaVsVwiG2lj YU7ckjUlcYSq4s3Y/SkDryUt8OO0NaGy7sJhFOnxk0WyiwiiOuIKe17u3waZ6EVbQkH2YMtXCNb TXb98e/eh61goJrh6dXZPuVGIvxthHWNK04YQ1PJRcAYd+9Fo8rG5VPrUBBg== X-Received: by 2002:a17:902:e5c3:b0:2aa:daf9:697e with SMTP id d9443c01a7336-2aadaf9706bmr45455185ad.48.1770628087650; Mon, 09 Feb 2026 01:08:07 -0800 (PST) Received: from dgp100339560-01.huaqin.com ([103.117.77.121]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a95220c4e9sm101132815ad.83.2026.02.09.01.08.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Feb 2026 01:08:07 -0800 (PST) From: Langyan Ye To: neil.armstrong@linaro.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Langyan Ye Subject: [PATCH] drm/panel: ilitek-ili9882t: Fine-tune HFP for tianma, tl121bvms07-00 Date: Mon, 9 Feb 2026 17:07:59 +0800 Message-Id: <20260209090759.3952404-1-yelangyan@huaqin.corp-partner.google.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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" The measured refresh rate is around 120.4Hz, which does not meet the requirements of the stylus and causes it to malfunction. After the adjustment, the refresh rate is measured at 120Hz, which meets the requirements for proper stylus operation. Signed-off-by: Langyan Ye --- drivers/gpu/drm/panel/panel-ilitek-ili9882t.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c index 370424ddfc80..6f9d4a4198a9 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c @@ -689,9 +689,9 @@ static const struct drm_display_mode starry_ili9882t_default_mode = { static const struct drm_display_mode tianma_il79900a_default_mode = { .clock = 543850, .hdisplay = 1600, - .hsync_start = 1600 + 20, - .hsync_end = 1600 + 20 + 2, - .htotal = 1600 + 20 + 2 + 20, + .hsync_start = 1600 + 18, + .hsync_end = 1600 + 18 + 2, + .htotal = 1600 + 18 + 2 + 20, .vdisplay = 2560, .vsync_start = 2560 + 62, .vsync_end = 2560 + 62 + 2, -- 2.34.1