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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A0E1BC5516D for ; Thu, 30 Jul 2026 19:49:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PMWGrMZL4Nj+QgrYjwQjicY2dtZresrFXSJZmvC3DZI=; b=2je4AyLzzMW0VP/KyQR0Y7iYLH GAHB4BHu2I8Xim3z+teJALyXVlIz5sqZwr7ObW7aB6wRbWMntlhgJTGxZ7eMQ5/ShS3AtvZY/KbDo EbELufeKcM+rVoAYGmameDdOlrKFHjwsS3qprYOByOUXayO64+iSabPbZ/E0rsmnxTbchWRXq/6wr 2fhs3HFfaLIpr1ADWoIYKyjzouAGtDRB0Lrw7Rdy6FrmTnvbuQaHHi11upNC9bsvmN1GG6JMJu4dJ sC2ZHmwf12++wiZFkjIvitWVkn27d1K+icf4r/5anUjzE4gQ9WVEpuDbUxCAJh2yy4XfA4TxpVOM6 L1rhBtyQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wpWl6-0000000BGpK-09TE; Thu, 30 Jul 2026 19:49:36 +0000 Received: from layka.disroot.org ([178.21.23.139]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wpWl1-0000000BGmT-1lXA for linux-arm-kernel@lists.infradead.org; Thu, 30 Jul 2026 19:49:32 +0000 Received: from mail01.layka.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id BFE7141BE1; Thu, 30 Jul 2026 21:49:29 +0200 (CEST) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id yS509kLnw0Fy; Thu, 30 Jul 2026 21:49:28 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1785440968; bh=DmJPtAysp709Y2CnVk1sHYjZws6rXevfNZSuuVeapIw=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=VGt5vaKVGChiNTua3C3ICymzxLmglYa1GdXrhKbaV7swVPez5BoQvFoveKzyYcuiw ja6huk+g8zwtlInhPraunlDr+dfVrCU6weop8sARxYMrCjTQAOi2AtIUuWcg86Q3dD DVcJXpbHKXT6eAjjK9VrD+sEemiTseHENXjF6yoKqFGGRrP7GNoRXOTPEQTZwDQ7NR SV763nkYfmvaCRZGo5MPkrpz0mMlwSQFOCjustUTc+pGoUdwegvo02Oqb++7hFMKR1 4w05qJ2V4r4xjTW1oJ+Zvch6p2UefSgqclYcrUgvi9YxxVUCtMswWJ8MCDOliEl/4y LSxa1+Wh6IyWQ== From: Kaustabh Chakraborty Date: Fri, 31 Jul 2026 01:18:25 +0530 Subject: [PATCH v2 5/5] arm64: dts: exynos7870-j6lte: set mode 0 as default for zinitix touchscreen MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260731-zinitix-modes-v2-5-ffe2ec9a9031@disroot.org> References: <20260731-zinitix-modes-v2-0-ffe2ec9a9031@disroot.org> In-Reply-To: <20260731-zinitix-modes-v2-0-ffe2ec9a9031@disroot.org> To: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michael Srba , Linus Walleij , Peter Griffin , Alim Akhtar Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Kaustabh Chakraborty X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260730_124931_607750_BFE29B1E X-CRM114-Status: GOOD ( 11.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The ZT7548 chip in the Galaxy J6 is actually able to support mode 2 (the recommended mode) just fine. However, the downstream kernel driver utilizes mode 0. This creates a problem in the aftermarket world where fake touch digitizers only implement the bare minimum functionality, as used by the downstream driver, to compromise on cost, which leads to such chips implementing mode 0 only. To ensure touch works on those devices, set the default mode to 0. Signed-off-by: Kaustabh Chakraborty --- arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts index de30d0970336..bd8f798c9810 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts @@ -424,6 +424,8 @@ touchscreen@20 { touchscreen-size-y = <1480>; vdd-supply = <&vdd_ldo34>; + + zinitix,mode = <0>; }; }; -- 2.54.0