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 D55D8C3ABC0 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: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=vYcqBSG+o4EEOVywDQQyDYiS3yCILlphkHmvbdOYRYU=; b=3+Bs/v2WM7QBwq daGTUaobzZiHvF2acY8YetT3e/USNxNNZ0tfxrcxcwwsAo4aC/Kpfxjeydu8p5adrU+08375WtviI RNyRD8LMOUC/pUz4dZUhM2NVb+edUA2qiItPQsUdSrHZcSYjkk6wVilM1qOaXYGtN64wsSSqqdOce Bec4pk7D2OgUszb2uu3nK3tIU5GdbqFSDbfKjPB/uEWTrhtrcwDyJF1KbmC+jJS0cl0y43mUvKwHu FIEf7OFdNvCxnzzr/xPLMi78IW5kzjNeokzheReF2OTUVCyaT/oUiWJOnPjKMT/+1UVqriy5MVSBg us2l+y0k8V6bDyPDgNug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCVjo-0000000E6uN-0kpY; Wed, 07 May 2025 03:46:28 +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 1uCPzB-0000000DRae-1c7j; Tue, 06 May 2025 21:37:58 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id B126AA4C468; Tue, 6 May 2025 21:37:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17B4EC4CEE4; Tue, 6 May 2025 21:37:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746567476; bh=W25DsCYn8R/oNpmSFXNWiLK0Xa3cc6Ewn8T+bcqzubk=; h=From:To:Cc:Subject:Date:From; b=nohQ9kaCoSfc/cJwb3qRgWS6g5aWBi7lWCK7wmSxPCw6Lwqenx5I07tPIHZwQi3u6 0sXW8vnVqazFSnU9ne6oOay0cEBQ84vTg/V8bQf1LtNlR/Ls4m42CeZriaG4VhsWmp AXmtYd2XswFMpi5tZJGqw5CnWU/+ba1RPIwv0K7qCtkFbfPPw3E40/d1fAdQrQJzpT k8MLhTD8suvtkFamF4fBWFTDDRZMDhhPE3XGPHoZV4lx6Jxu0airf3Wm0Z7Ok6/TE8 hb6FSgeNqY4H/8iJqhJnRgcSssN3npUkeXUdbJRkq7PiW/+14f9vgrd4vZRBbKB0pP 3jz4dhyK76k/Q== 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 5.10 1/4] pinctrl: meson: define the pull up/down resistor value as 60 kOhm Date: Tue, 6 May 2025 17:37:48 -0400 Message-Id: <20250506213751.2983742-1-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 5.10.237 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250506_143757_484969_A8AB353A 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 20683cd072bb0..ae72edba8a1f0 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -483,7 +483,7 @@ 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