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 5C7B0C3ABC8 for ; Wed, 7 May 2025 03:46:32 +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: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:In-Reply-To:References: List-Owner; bh=3ZkIgEfAJyUWf6gugk8sxf4WtZ2ePplujjhtD+/Tvsc=; b=LUPSWWKhSEg+8h RuDPYpxpcZas54s/HTOLBMLDcVGa3Gd1I9GKjMgCj0TIthiuW7UqdJMLSldB2gQRb1b1r0TXTu5Pm 6XswsF2M8lH4KvYUy9zaN0PESQ9m6AxcvWwUe/lOdxB3Qne8ZVYGWQZPVwjVbM77/V94d1mPz032b P9SHNw99ZjfbQHhl14ungm90hqtUX5G1llF1StxLJGFa19RuWX/7u/X2lvSEzq+OjfpqN4iYqOB5l 4dbdwM723GqEzZlMIX5yXwmMym3vCWeb4/bAtkSBkL42hqIQrdZr4hGzlvaOTUX6LAHo+m41bTtIO OJcEXL6IgrLcj2wO52Cg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCVjq-0000000E6xA-0VrH; Wed, 07 May 2025 03:46:30 +0000 Received: from nyc.source.kernel.org ([147.75.193.91]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCPzP-0000000DRdb-39Ll; Tue, 06 May 2025 21:38:13 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 07C30A4A0F5; Tue, 6 May 2025 21:38:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6DDEBC4CEE4; Tue, 6 May 2025 21:38:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746567490; bh=fpWKRGLUlfFcKgRhzd3YKEA/2o+6Sj2FNknpu5FvDG8=; h=From:To:Cc:Subject:Date:From; b=tmRS9fKfYfOenJvpT2PZ76HrYRxLYoWbPRpc7Ga8BsLnjlO9uI26Wy/7E9RC2cgBp 83Q8snZUHalNsE0OBgsj/7hrYs6ElY9raQPRuE5JmIhv4PFp77/6H4SiM7LAhan0aO jbD+NPxJWwXM3lwtnECqMggfA7pQX6t3fNYOYw1jY9skbkjSqLo9EZvXCRlYoiDsY4 IaRdPdIaibTwwDrsU7EtPjbwpgn4wtYgvy8UFaNycHqXdS9wRa4gHRLe3wt3NWmbGN 4WtdIZrnTdAWIHaiti8udr86MiyAg6akXXb2CKMNkoneJ0bBBYfPTQlhNu3/3TC+Ji F+Sfc0DhafEKA== 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 5.4 1/3] pinctrl: meson: define the pull up/down resistor value as 60 kOhm Date: Tue, 6 May 2025 17:38:03 -0400 Message-Id: <20250506213805.2983809-1-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.4.293 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250506_143811_859731_87FD0903 X-CRM114-Status: GOOD ( 12.49 ) 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 aba479a1150c8..f3b381370e5ed 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -480,7 +480,7 @@ 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