From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C36DB3BB127; Thu, 30 Jul 2026 20:19:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785442787; cv=none; b=tkMXIVc7PtLpp8PlCsJN53v9wQbtLB0nBoK+Lwza8jznm99lHUgVStFrmH3RFSi7MMknSyVSw4Sj9jPH80CaTsBJWsyMfdAVvuXp76OMbZ/xd2RMyf73/g4RP2FeFEKdYfEhJqm2yg3bnNStk0rzrqvk4yvckrOJgKdVEAQqqSU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785442787; c=relaxed/simple; bh=PHhg4NASLAVp09IUcpWPeWdg4j/hYt2r4k+sJeoXjAc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=sl2RwBFSdSCCVd6xnTLM7nScZM7DdD3SnLrCll4DNBQjerlb+IHesn0xLlSnjGnTQiAcgkdZqdsDINDspYGv+klZYsn4+nEZBKlqSrVa3udNee4QzNSUBlP1WxnnCODqkhGFpB/mrbwPwwGkhSyP7f5e2PHH0bAFVPY6Zznp7P0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=cItL7OfI; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="cItL7OfI" 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 Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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