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 35B89C5516D for ; Thu, 30 Jul 2026 20:20:04 +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=L77jCv3f95ANc83ixm53SBXy3LLu0+ipYt59rygigCU=; b=FKxrPrJzuxLU6i3HBU+EzU/kn7 89No/le0U2bQfUmJiCXlOfkSDUYC9XuSWJobHjmtvqOmw9TfaCwIgSu+W4yxiB9imRzb8yahvQd49 yKy1UCubroHVqV9Uomdjp7CUDrSwh9HjqSW9ZtzXR2Dw8y4uV4dU6NYNt/t0vgLmay69rNCCucbBR PHkZhvhipNGFggfEJ0nj0haqain3u3chDj1xDVPup1y5PUezVygvt2yqRqAobrzWouBZA/ZfNjhdK nS87jTr6zxKRMVFHk5HTqmGqn2Jj3b0j4nID0Z2K5NDH9Cax4o3ouIYhV1JMf8R9XkRPAwZRiW/Xs l8e3aoWw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wpXER-0000000BJp8-0H79; Thu, 30 Jul 2026 20:19:55 +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 1wpXEM-0000000BJmS-3W1S for linux-arm-kernel@lists.infradead.org; Thu, 30 Jul 2026 20:19:52 +0000 Received: from mail01.layka.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 40CC08468D; Thu, 30 Jul 2026 22:19:43 +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 8RPTeP7d8JI8; Thu, 30 Jul 2026 22:19:42 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1785442782; bh=PHhg4NASLAVp09IUcpWPeWdg4j/hYt2r4k+sJeoXjAc=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=cItL7OfI6aoZel27BS3cVDgQOPc9T3X0eCQnbv0q9fdYRp54bc0B+x4c4Zx3iQYvw JBV/4h2kzJNa4Vfaq0lavee50pn9kEOCWmNk82afEU5vNyKUFk+L7DexO5soT4AwlJ YYtoRgygx2rXuNAyf5liDbbV9wgzw5QYVRwnQnviYR72pNEanftpW/jQMZ4zdRnq61 TXLfMIrDUJNFN1+h18bpHDVoT6LqN8ahpBEQzlm6rb68z5wKmz3Ce14+WF8n8o0pLY roZxoTBmndDTQBAXdryTV1lpu/F+Nyd0byTwsCVOUH7tCrWew4ktWO2fOf/8fCWCIs zyYUEgOOCFzEw== From: Kaustabh Chakraborty Date: Fri, 31 Jul 2026 01:48:38 +0530 Subject: [PATCH v3 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-v3-5-2c8de712997a@disroot.org> References: <20260731-zinitix-modes-v3-0-2c8de712997a@disroot.org> In-Reply-To: <20260731-zinitix-modes-v3-0-2c8de712997a@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_131951_018910_85080E3F X-CRM114-Status: GOOD ( 11.81 ) 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. Reviewed-by: Linus Walleij 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