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 7C92EC53200 for ; Wed, 29 Jul 2026 04:31:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding: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=37lXyP59pDiimH08FVSFFK7bhW2LoUUcv8fiA1KoIyE=; b=O83wxNFfYA5gjEyw7G7CFCPIik K1u387J/ENWB5ljKPW+h3wsrlTDOW7pXK6dwFEtcCrusmjqJWjHT+qkvXzCgdVSnMd33MBef9hHBr H3Hlf7aywMSfbhiYaCWwBP9epEFCudNOBjwTKdxbec7jCYXp+xRbjgvfFnTd2MfmiJTZY7AdcSMN0 xJ9zxDkMDzTBPOZHI5hBwFn73t2JdPcm7UgcScRxcUZmNgTUF9vqGcchU82oiMGGsl+P7nDrqp1Sf CXOg35ELbaDuKgJmSFOjM7wjpPzaaxiMwTCyR/hk3Vm0Bi9/rkXT/908HDDg1cOP1swgTjaT/haRj hQJjCRPw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wovwa-00000006pOP-2cXv; Wed, 29 Jul 2026 04:31:00 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wovwV-00000006pMs-0g1I; Wed, 29 Jul 2026 04:30:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1785299454; x=1816835454; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vyj9fs1HwSTP2Vn6uvDe/jTS2WMWcuAYicmd/E32dCM=; b=c3dAPDck0rmnBzBkiuMMVR9OAxRTjbDaIpT+MUDjCDmjTchci5YWTGXb 6aTdXc3tFJRfCTkGpcreJbC6cjXVe4zCKLgohWscqW4LGh7JzPggP91sy au/8G8OkswcUT/kVH2e5aRyJbXG1V5WKhLJfes0yWuuHYkllscQZZN7rB 2shZLJmQh+EGUR0pMcS3iR87M+3fCHBzHPgJNryj1ZXSahW1Rk71ff6Td eRH+GVZkHFv0ZTfdxufkxKgcQnwkA22W8CdIFqpF5ZX/VNDalFXqExOsr 7QBpOfSLHnnuY/1cbauQGL8CVJej8MFQwmk0VXWZWJP/oTKgwapwB11Q6 A==; X-CSE-ConnectionGUID: VgGnR1bNT+qcbukmSlH3SQ== X-CSE-MsgGUID: RcZu97WHQaC1kjQk1NPP5Q== X-IronPort-AV: E=Sophos;i="6.25,191,1779174000"; d="scan'208";a="70845767" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Jul 2026 21:30:53 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.87.152) by chn-vm-ex1.mchp-main.com (10.10.87.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.43; Tue, 28 Jul 2026 21:30:52 -0700 Received: from che-ll-i67131.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Tue, 28 Jul 2026 21:30:43 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , , , , , , , , , , CC: Manikandan Muralidharan Subject: [PATCH v6 1/7] dt-bindings: mtd: jedec,spi-nor: allow the SFDP to be exposed via NVMEM Date: Wed, 29 Jul 2026 10:00:20 +0530 Message-ID: <20260729043026.1811147-2-manikandan.m@microchip.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260729043026.1811147-1-manikandan.m@microchip.com> References: <20260729043026.1811147-1-manikandan.m@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260728_213055_330886_4B70804D X-CRM114-Status: UNSURE ( 9.07 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add an optional "sfdp" child node (compatible "jedec,sfdp") that describes the SFDP as a read-only NVMEM provider via nvmem.yaml, so its contents (e.g. a vendor EUI-48/EUI-64) can be read through NVMEM cells. Reviewed-by: Linus Walleij Signed-off-by: Manikandan Muralidharan --- .../devicetree/bindings/mtd/jedec,spi-nor.yaml | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml index 587af4968255..98fd954598ab 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml @@ -103,6 +103,20 @@ properties: spi-cpol: true spi-cpha: true + sfdp: + $ref: /schemas/nvmem/nvmem.yaml# + unevaluatedProperties: false + description: + The Serial Flash Discoverable Parameters (SFDP) tables exposed as a + read-only NVMEM device. This allows standard or vendor-specific SFDP + data (for example a factory-programmed EUI-48/EUI-64 identifier) to be + consumed through NVMEM cells. + properties: + compatible: + const: jedec,sfdp + required: + - compatible + dependencies: spi-cpol: [ spi-cpha ] spi-cpha: [ spi-cpol ] @@ -122,6 +136,10 @@ examples: spi-max-frequency = <40000000>; m25p,fast-read; reset-gpios = <&gpio 12 GPIO_ACTIVE_LOW>; + + sfdp { + compatible = "jedec,sfdp"; + }; }; }; ... -- 2.43.0