From nobody Wed Sep 3 06:29:15 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BCA3FA3740 for ; Mon, 24 Oct 2022 12:40:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234123AbiJXMjD (ORCPT ); Mon, 24 Oct 2022 08:39:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234651AbiJXMfj (ORCPT ); Mon, 24 Oct 2022 08:35:39 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 25ADC474FA; Mon, 24 Oct 2022 05:05:38 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 16DA0B811F9; Mon, 24 Oct 2022 12:03:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65061C433D7; Mon, 24 Oct 2022 12:03:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1666612998; bh=bWLgJsdT1xT7yzgqkpyFEL+i9+i23FLq//RwWqB7Aog=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nIjiJGJWL5KcR/k5FoHk8Qb6H0s9OYt8q25g7mFYY8NdNkpanM2ygREKS1FaIY3cY BxrkjZNo3tOTKP8Vf4p8XqOqF2XV7xzh6BU7Y0BZCwnD7qVnVUTEIbxidotIlnw6bJ erLYqMb4M5xuydPoU/pd+viZvDoYVzYG4uHFvr8k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Haibo Chen , Shawn Guo , Sasha Levin Subject: [PATCH 4.19 200/229] ARM: dts: imx7d-sdb: config the max pressure for tsc2046 Date: Mon, 24 Oct 2022 13:31:59 +0200 Message-Id: <20221024113005.616360725@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221024112959.085534368@linuxfoundation.org> References: <20221024112959.085534368@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Haibo Chen [ Upstream commit e7c4ebe2f9cd68588eb24ba4ed122e696e2d5272 ] Use the general touchscreen method to config the max pressure for touch tsc2046(data sheet suggest 8 bit pressure), otherwise, for ABS_PRESSURE, when config the same max and min value, weston will meet the following issue, [17:19:39.183] event1 - ADS7846 Touchscreen: is tagged by udev as: Touchsc= reen [17:19:39.183] event1 - ADS7846 Touchscreen: kernel bug: device has min = =3D=3D max on ABS_PRESSURE [17:19:39.183] event1 - ADS7846 Touchscreen: was rejected [17:19:39.183] event1 - not using input device '/dev/input/event1' This will then cause the APP weston-touch-calibrator can't list touch devic= es. root@imx6ul7d:~# weston-touch-calibrator could not load cursor 'dnd-move' could not load cursor 'dnd-copy' could not load cursor 'dnd-none' No devices listed. And accroding to binding Doc, "ti,x-max", "ti,y-max", "ti,pressure-max" belong to the deprecated properties, so remove them. Also for "ti,x-min", "ti,y-min", "ti,x-plate-ohms", the value set in dts equal to the default value in driver, so are redundant, also remove here. Signed-off-by: Haibo Chen Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx7d-sdb.dts | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.= dts index 317f1bcc56e2..bd2c3c8f4ebb 100644 --- a/arch/arm/boot/dts/imx7d-sdb.dts +++ b/arch/arm/boot/dts/imx7d-sdb.dts @@ -163,12 +163,7 @@ interrupt-parent =3D <&gpio2>; interrupts =3D <29 0>; pendown-gpio =3D <&gpio2 29 GPIO_ACTIVE_HIGH>; - ti,x-min =3D /bits/ 16 <0>; - ti,x-max =3D /bits/ 16 <0>; - ti,y-min =3D /bits/ 16 <0>; - ti,y-max =3D /bits/ 16 <0>; - ti,pressure-max =3D /bits/ 16 <0>; - ti,x-plate-ohms =3D /bits/ 16 <400>; + touchscreen-max-pressure =3D <255>; wakeup-source; }; }; --=20 2.35.1