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 6C2F5531B17; Wed, 9 Sep 2026 10:49:43 +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=1788950983; cv=none; b=kyBCLBQMFjqSCR3N8L4C3il9YE3jdLtBMN2k01FM2b/0J4bfxYnqi7Qj8x89LArfE/uEEWSCy1WyJekWiSUxEbAHjM8L896YyCQ+xmnFBS1DV/obgCaFbmvS++yXhHTmPtR8c9JRn2adyPzqKLjpMciqD8djdk2TXFaEmW82JcY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788950983; c=relaxed/simple; bh=bAFFu2lBNOlTbT2Cs9DCFFwV99YLoyXfDsHSUYG7+/8=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=YCPPIEwiE/XZ6NQCAAZv63uLtn6ADPsPOZpCHkkWdyQBnivocDWgIsvdWAnQc+j4SVi8/tL76x89JWGdSFPMokmQepe9UbaMjdN0hcxsF0JhMjvfdMvjUoAP1qj/sVbkOHD07ZKJ4KcCoFimmWd3XhMuZMs0lDj5ImTwLmeu/Jk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=E2zcqXxU; 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="E2zcqXxU" Received: by smtp.kernel.org (Postfix) with ESMTPS id 06E08C2BCF4; Wed, 9 Sep 2026 10:49:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1788950983; bh=bAFFu2lBNOlTbT2Cs9DCFFwV99YLoyXfDsHSUYG7+/8=; h=From:Subject:Date:To:Cc:Reply-To:From; b=E2zcqXxUNKESsNFmwxsfiDggNrxfvkK40MY2efvvIQ2HDsDPX7jnv4Dg8CwPwcmJ/ ymftslRVmNk7+m81vie0mUcos2F74oMm4IM4aaSBzzNhU4XCLYoqUxprkQiPvuLVsx vKBKk5aYPaI0AITMH1fKXK7wZFjy9AttD6BU3Zc0Lz/MilBNqlnyxzjU+NyHXwkOuO +0NihDKuGQZfTG7KujWtc7BVGimihVpenjxH0Jdel0BqWK0C2patQH1dRpHLb09rDH Ya+MaZIzUQ1VvvTDtTEj20Vv0eIxyY7N+bQbII4+WcLpyKHuwzw+QcDSdztig4WUyC +gqvSMR0SZU5g== 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 D793AC79FB9; Wed, 9 Sep 2026 10:49:42 +0000 (UTC) From: Roman Vivchar via B4 Relay Subject: [PATCH v3 0/3] nvmem: mtk-efuse: mt6572 support Date: Wed, 09 Sep 2026 13:48:49 +0300 Message-Id: <20260909-6572-nvmem-v3-0-c0c441656431@protonmail.com> Precedence: bulk X-Mailing-List: devicetree@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/2WNQQ7CIBQFr2JYi4GPQHHlPYyLln4txpYGKtE0v bulxqTG5SRv5o0kYnAYyWEzkoDJRee7GcR2Q2xTdlekrp6ZAAPFNGdUSQ20Sy22FCtTWF1qISQ ns9AHvLjnEjudPxwf1Q3tkAt50bg4+PBa3hLPu29YrsOJU0aN5aJCY2qm9bEPfvBdW7r7zvqW5 HqClQ/7Hx9mH2VRc1WCUcD//Gma3t4UNWT7AAAA 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=1788950981; l=1949; i=rva333@protonmail.com; s=20260510; h=from:subject:message-id; bh=bAFFu2lBNOlTbT2Cs9DCFFwV99YLoyXfDsHSUYG7+/8=; b=LT1uhMHdEWOLytvMICqV04VZncZUHk8ekM5vbA+pQw7giELrWWp3JLnNl4rrZRBgByoR/H81n 50/V0jdMJwrBzDw3kckJJre9a6rgCMLmdK/KL2XvOAcQS/awwQ2lG+l 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 v3: - Pick up Rob's r-b tag for dt-bindings - Patch 2 and 3 unchanged, for some reason cover letter and patch 1 were missing on the web mirror... - Link to v2: https://patch.msgid.link/20260724-6572-nvmem-v2-0-e58d16a29621@protonmail.com 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