From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BDFF9352016; Wed, 20 May 2026 16:48:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779295735; cv=none; b=MPcQadgV3lIaO4IhfpqtfK+eMrHu5g9NsRuwPs4m4r+nV1IwlsSRb2qHDPCF1oBvb/ac8WBx7sbzKMynCwZ0grjLrLgcYDXPr6Iixv9Ewp+nwf2gVbAU8DM/9cEZ+isT0dJ/2x/+9lHaMnXInlrOyQlale0dmMkVu1L3GQmN3zI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779295735; c=relaxed/simple; bh=/FXsVzaTqngRSJtl/ug6dYBalb+WkULIIMkNQQdu7DY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OuKzPGXc1DsjZmmUwqT5CArfhaXGIMY7Joa1/CXUZjvzsFm1sjpDbxrAtXEkq9GcU5vnxPaD7A5rP0+5fBKBL06d4z7I+QVkEGGolTIM2B7umlYKWsUrDTojwYCdTIzh0LuQPBnwbj56mLC4lV/UG8vNzaiXsNIcca3aJ2gvjOI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YOl6Ugql; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YOl6Ugql" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26D551F000E9; Wed, 20 May 2026 16:48:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779295734; bh=bCpcPlfsOeTB8Z3ll5No/6YZKjq9Kp7aFPvFyAOJRFk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=YOl6Ugqlz9YWAHf3M786JJfH7AppTUg1WpynZ+oh9xL3lGkAQ1q/chXdDlyH2Q6si UmTqWBQMxVIByjyUvzyxQjujXmahJmCT9J2o8uiqy8G/JBCmTzMTLoBJHZhF0jHvrS ypLpIuw9Kn0chBrhFLRVe0urMmIbZziDtuH3hVr4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Judith Mendez , Moteen Shah , Vignesh Raghavendra , Sasha Levin Subject: [PATCH 7.0 0533/1146] arm64: dts: ti: k3-am62l3-evm: Disable MMC1 internal pulls on data pins Date: Wed, 20 May 2026 18:13:03 +0200 Message-ID: <20260520162200.244170332@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162148.390695140@linuxfoundation.org> References: <20260520162148.390695140@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Judith Mendez [ Upstream commit 02532ba56362907b6aca3e8289c4a9247ef83325 ] AM62L EVM has external 47K pullups on MMC1 DAT1-DAT3 pins [0]. Disable internal pullups on DAT1-DAT3 so that each line has a single pullup source: - with both pullups enabled, the effective parallel resistance on DAT1-3 (~24.2K) creates a ~2x mismatch vs DAT0 (47K external only). Removing internal pullups results in DAT1-3 matching DAT0 at 47K - 47K external alone is within the recommended range for 1.8V signaling (10K min, 50K recommended max) - both internal and external pullups enabled equals unnecessary power consumption [0] https://www.ti.com/lit/zip/SPRCAL6 Fixes: 00fb4c73b67d ("arm64: dts: ti: k3-am62l: add initial reference board file") Signed-off-by: Judith Mendez Reviewed-by: Moteen Shah Link: https://patch.msgid.link/20260223233731.2690472-3-jm@ti.com Signed-off-by: Vignesh Raghavendra Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts index cae04cce33736..bd876c68aa347 100644 --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts @@ -272,9 +272,9 @@ mmc1_pins_default: mmc1-default-pins { AM62LX_IOPAD(0x0230, PIN_INPUT, 0) /* (Y3) MMC1_CMD */ AM62LX_IOPAD(0x0228, PIN_OUTPUT, 0) /* (Y2) MMC1_CLK */ AM62LX_IOPAD(0x0224, PIN_INPUT, 0) /* (AA1) MMC1_DAT0 */ - AM62LX_IOPAD(0x0220, PIN_INPUT_PULLUP, 0) /* (Y4) MMC1_DAT1 */ - AM62LX_IOPAD(0x021c, PIN_INPUT_PULLUP, 0) /* (AA2) MMC1_DAT2 */ - AM62LX_IOPAD(0x0218, PIN_INPUT_PULLUP, 0) /* (AB2) MMC1_DAT3 */ + AM62LX_IOPAD(0x0220, PIN_INPUT, 0) /* (Y4) MMC1_DAT1 */ + AM62LX_IOPAD(0x021c, PIN_INPUT, 0) /* (AA2) MMC1_DAT2 */ + AM62LX_IOPAD(0x0218, PIN_INPUT, 0) /* (AB2) MMC1_DAT3 */ AM62LX_IOPAD(0x0234, PIN_INPUT, 0) /* (B6) MMC1_SDCD */ >; bootph-all; -- 2.53.0