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 B5262C3ABC6 for ; Wed, 7 May 2025 02:34:32 +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: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=h6+rKJ+eOFuIpOK6zMUZnBJx6FIAeDlBZv+vwj+1SZw=; b=rEAgGOiO0Vg7Lp +QAb6uPkzYFTlewc2hd+xkvUsIw2QF2GPPSQamGKYnkDyuoBnSzFhYda2qiIYuWdjPCy1CRaQlG60 Zcik5WEUk8zAstFR9oYKteXmbRH9b88ua3J/W/f8Y9t8D1Jb9f6ZSRtTDGYIPz6PkCUk17dFVeu/p eZczRubdj8FIu/KCZMzRB4bi3CuJzCe970I2rWynLrJpRyxEeDV2jImtdR9sQzlnHfktPUG6ZaRck eRfbzI5E2TERkhRExr5koxpgojky/8KVc0BjAzWsJmIqQ1PXEIMucSMKGAosxS7esWSVfblHrCsMT 9Q67ZItXrKO8iSbuZ1+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCUcA-0000000DxER-0f65; Wed, 07 May 2025 02:34:30 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCPxc-0000000DRCt-1JGv; Tue, 06 May 2025 21:36:21 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 4334D5C5A26; Tue, 6 May 2025 21:34:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06D61C4CEE4; Tue, 6 May 2025 21:36:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746567379; bh=bAe2tVtAM7NP2J7ExCcLUvHZ6v938tsHssRmoGCpCO0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=obXeYwh1dDHCTQvDTRzH4rbyTzE/MeiZLO25Pr0oZDd8mhFlkBf114wFrTonTAFRo oO8iCpnvvPH952NiXPVIyNzzregx9AbASK7cnnJEJhuJukETzuPmxbDzOHkmZ/9akv XkShlH/yloWkInbuv01cKFH8qHSFX39R9sZ5wWEB5x5OzDFhiu1Qn/We7EpudJqP+y H0/o52W8heAFSq5gEI/JYW9em1L/VyztYHxhJLi3t3PIEaBDsP9GUoeipyw6BSsd41 FgfVuqwfHM/EZBefjMZWm/l7aG2XI/tNzASTBNcgsK1RAR6JWf/9ZmsZZvayDRZUO1 Rus16NGV9yO9w== 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 6.12 03/18] pinctrl: meson: define the pull up/down resistor value as 60 kOhm Date: Tue, 6 May 2025 17:35:55 -0400 Message-Id: <20250506213610.2983098-3-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250506213610.2983098-1-sashal@kernel.org> References: <20250506213610.2983098-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.12.27 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250506_143620_387967_AF2B493A 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 253a0cc57e396..e5a32a0532eee 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -487,7 +487,7 @@ 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