From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 78EB93D1AA4; Fri, 24 Jul 2026 11:29:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784892591; cv=none; b=Goy/UXwtNaaSd7ZNlVQ4h6vJfbH2g5Nr0vrijki6K2+I0p2ASKGdvzpcROqxz/xk7SpgXncBtIBBFjsHMAbU01IzL39klbX8Nz/RSOCBd9L3jEhnCsOlnxzZA7LbV9g71gelcVbbC75WbfuCirOPbgeN9EESLAjYiv8jlKe0A6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784892591; c=relaxed/simple; bh=uBSmUhci1EknRRqFtCBquW8bSNJi7MJ7/9rqReMYF50=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=YrMI+0ra/VovMKWx0GjQ7GvNb/PQ7nmDhfi2I1bHTwGSDYcI0Ev5ukWDAKYEnf/toVcNve1et1qav1KuhoRi+svf9Hp5/9vQJlHqQm31qkiHeNO3YfTF9/V8tDH02gFvp6tQ5HMN88+00+t4YEm833C3b1cpRrleao6G8eY45CI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ikyyhkrY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ikyyhkrY" Received: by smtp.kernel.org (Postfix) with ESMTPS id E3E80C19425; Fri, 24 Jul 2026 11:29:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1784892591; bh=uBSmUhci1EknRRqFtCBquW8bSNJi7MJ7/9rqReMYF50=; h=From:Subject:Date:To:Cc:Reply-To:From; b=ikyyhkrY3N+H26/oNskJTBthgSiEOLtz1+SB8XVg98jST0ct05AZojvP0uC1RU1o5 x90MFlbsuZDMQgGjiF/6qa3Ht2l1GKh2d7xh6yVIhijUShWnW805YgE8rQgq5plzj0 R2COR+xN8p/Kc3e3QNZFx1LkSaQ6c8Y+hM8ZedkJNFqr+Dqw3GAwI5kPbVRCapqP7C Wu/tZr6ESURAope4dqEaHyZzoBSrha911wYXkOLy7+tNrc2ErePpP+3g11wMzrC4P5 owVs63pUj3oM94NOmPkzkUNfghcRiCVyKP/f7YDcvcSEg8iEcs4jxy6nV7b/xzb2MU 5J44MPFVzpXOg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA30EC531F9; Fri, 24 Jul 2026 11:29:50 +0000 (UTC) From: Roman Vivchar via B4 Relay Subject: [PATCH v2 0/3] nvmem: mtk-efuse: mt6572 support Date: Fri, 24 Jul 2026 14:07:05 +0300 Message-Id: <20260724-6572-nvmem-v2-0-e58d16a29621@protonmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/02NwQ6CMBAFf4Xs2Zq2BGo98R+GA5RV1tiWtNhoS P9dwJh4nGTevAUiBsII52KBgIkiebeCPBRgxs7dkNGwMkgua64EZ3WlJHPJomXY65NRnSrLSsA 6mAJe6bXHLu2X47O/o5m3wmaMFGcf3vtbEpv3C1f/4SQYZ9qIsketB65UMwU/e2c7ehyNt9Dmn D/ddhBmuwAAAA== X-Change-ID: 20260710-6572-nvmem-eb98c7a73351 To: Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Andrew-CT Chen , Lala Lin Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Roman Vivchar X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1784892588; l=1693; i=rva333@protonmail.com; s=20260510; h=from:subject:message-id; bh=uBSmUhci1EknRRqFtCBquW8bSNJi7MJ7/9rqReMYF50=; b=ZvXXV7SLUNHGIXtsurTciEl6g4gda5NqcmqNbWn7OcnAabRljAXBDZmB7seYQqARzvjmHW/aS 0mFRT1i+yl2AunxizhOvo6Pg6moRWdHLwATTbeLWT9DTrY8J4eLEave X-Developer-Key: i=rva333@protonmail.com; a=ed25519; pk=zww/nWjBGoQ4POXCG0BV6fx2iuXK6jx77rsKPA5YK5Y= X-Endpoint-Received: by B4 Relay for rva333@protonmail.com/20260510 with auth_id=777 X-Original-From: Roman Vivchar Reply-To: rva333@protonmail.com This patch series adds MediaTek mt6572 efuse support. Unlike newer SoCs, its efuse controller doesn't work properly with 8-bit reads, leading to invalid data with current mtk-efuse driver implementation. This behavior can be observed with devmem (0x10009174 and 0x10009178 are thermal calibration cells): ~ # devmem 0x10009174 32 0x00CDD4CD ~ # devmem 0x10009178 32 0x0F76865D ~ # devmem 0x10009174 8 0xCD ~ # devmem 0x10009175 8 0x00 ~ # devmem 0x10009176 8 0x00 ~ # devmem 0x10009177 8 0x00 ~ # devmem 0x10009178 8 0x5D ~ # devmem 0x10009179 8 0x00 ~ # devmem 0x1000917a 8 0x00 ~ # devmem 0x1000917b 8 0x00 Patch 1 adds dt-bindings compatible for the mt6572, Patch 2 adds platform data option to use aligned 32-bit reads instead of plain readb(). Patch 3 adds platform data for mt6572 SoC. Signed-off-by: Roman Vivchar --- Changes in v2: - dt-bindings: make mediatek,mt6572-efuse standalone compatible - Driver: add 'mtk_reg_read_aligned' helper instead of modifying 'mtk_reg_read' - Link to v1: https://patch.msgid.link/20260715-6572-nvmem-v1-0-9c13be99d077@protonmail.com --- Roman Vivchar (3): dt-bindings: nvmem: mediatek: efuse: add mt6572 nvmem: mtk-efuse: add support for 32-bit aligned reads nvmem: mtk-efuse: add mt6572 support .../devicetree/bindings/nvmem/mediatek,efuse.yaml | 5 ++- drivers/nvmem/mtk-efuse.c | 41 +++++++++++++++++++++- 2 files changed, 44 insertions(+), 2 deletions(-) --- base-commit: 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 change-id: 20260710-6572-nvmem-eb98c7a73351 Best regards, -- Roman Vivchar