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 25F0BC369DC for ; Wed, 7 May 2025 03:46:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=qHq/KXRuqbP/bxOPabBcqdqzM2jiBmNAQ2sEeKbqxfk=; b=IOFaQGz7hxGbFA UFAtovk/w5J0xNdm+kdDSPKn9puGRwgxdpzMfSdvgSyf04PW1xq1ejSRyTDj7Y6omRxYnpIzt3iFx jJHOnQcys8oVbxulyLH9tvRq7bo2tOCu7/q/HRNl+JtVZpYojqX5e/QkIZVE3uid/f2fzUXjFl4hS u+/mJoNo850XjEGr6By5j3Glb7Higvuf+oBIp5oVz7+3+tbsMe6Nxm8BYvWGNdnM3WcuDSUhZ1H2z rL6iXdnR24i2GyhdGmU847TfGZuIjpw7vwgiX9UnmyBxKBVI7A7ZczY9nhc3DJu9aJLARMJGMIofr m+eK9mLgLh2wBBwOheDQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCVjm-0000000E6rZ-0xV5; Wed, 07 May 2025 03:46:26 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCPyx-0000000DRWI-05UB; Tue, 06 May 2025 21:37:44 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 58CAEA4C374; Tue, 6 May 2025 21:37:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C295DC4CEEE; Tue, 6 May 2025 21:37:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746567461; bh=WuayqM34DjU30K0wBirA7NlxyGuo4ZoD+IetHQ56Wwo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kByIgeOMB2BiccFyIYYiuRACKDhKNdjPYmd8RfECBKAAom1vNsfz8uoD2dWHqK9G9 Brbde7OQaHRZZxwxnLGpMNAhKvDl8Fzqy9XbkqsFHHOyHH71Q5Z25jFHRWliPGn21j 9P04X8e4riDBeHjny1d9YRL34u6MpLrh+f3cGNR4qGlv2ZVd9PYjUbbyGF7xNpENOH KFgLu2tmKBh19hZj12BD1xrZyjSBM/rjyzo7Tx2yd7UBCPByfbxlhLHds7wpFBxtEc 9dwqEyj1ArOBGJI0xNKzKbt/wc1VAvSQ/cYr4t4kT4kbSyjgeiUQ4cir5aSvNnKRGG U7eyQY9rPPZ+A== From: Sasha Levin To: patches@lists.linux.dev, stable@vger.kernel.org Cc: Martin Blumenstingl , Neil Armstrong , Linus Walleij , Sasha Levin , khilman@baylibre.com, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 2/5] pinctrl: meson: define the pull up/down resistor value as 60 kOhm Date: Tue, 6 May 2025 17:37:31 -0400 Message-Id: <20250506213734.2983663-2-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250506213734.2983663-1-sashal@kernel.org> References: <20250506213734.2983663-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.181 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250506_143743_123213_F0A28759 X-CRM114-Status: GOOD ( 12.88 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org From: Martin Blumenstingl [ Upstream commit e56088a13708757da68ad035269d69b93ac8c389 ] The public datasheets of the following Amlogic SoCs describe a typical resistor value for the built-in pull up/down resistor: - Meson8/8b/8m2: not documented - GXBB (S905): 60 kOhm - GXL (S905X): 60 kOhm - GXM (S912): 60 kOhm - G12B (S922X): 60 kOhm - SM1 (S905D3): 60 kOhm The public G12B and SM1 datasheets additionally state min and max values: - min value: 50 kOhm for both, pull-up and pull-down - max value for the pull-up: 70 kOhm - max value for the pull-down: 130 kOhm Use 60 kOhm in the pinctrl-meson driver as well so it's shown in the debugfs output. It may not be accurate for Meson8/8b/8m2 but in reality 60 kOhm is closer to the actual value than 1 Ohm. Signed-off-by: Martin Blumenstingl Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/20250329190132.855196-1-martin.blumenstingl@googlemail.com Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- drivers/pinctrl/meson/pinctrl-meson.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index 49851444a6e3b..d239ad85a510d 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -486,7 +486,7 @@ static int meson_pinconf_get(struct pinctrl_dev *pcdev, unsigned int pin, case PIN_CONFIG_BIAS_PULL_DOWN: case PIN_CONFIG_BIAS_PULL_UP: if (meson_pinconf_get_pull(pc, pin) == param) - arg = 1; + arg = 60000; else return -EINVAL; break; -- 2.39.5 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic