From patchwork Tue Sep 10 12:36:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sylwester Nawrocki X-Patchwork-Id: 1160316 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=samsung.com header.i=@samsung.com header.b="ZSpzF0/g"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46SPg92k5rz9sPM for ; Tue, 10 Sep 2019 22:37:09 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404629AbfIJMhA (ORCPT ); Tue, 10 Sep 2019 08:37:00 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:37669 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404258AbfIJMgk (ORCPT ); Tue, 10 Sep 2019 08:36:40 -0400 Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20190910123639euoutp01d6abcb82d1abf6dc72fbbfd538f2d178~DE_vseY1C1102311023euoutp01V for ; Tue, 10 Sep 2019 12:36:39 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20190910123639euoutp01d6abcb82d1abf6dc72fbbfd538f2d178~DE_vseY1C1102311023euoutp01V DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1568118999; bh=ageHcoP5yyUcbBzIKRba9vlDt9YVjqT0KkoUSzxprYw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZSpzF0/gmUzByPQj4mapOlwqx6g8v0VJDQIxhmSYcsHbb3kXitR1hRol4DQozavQX 2vFRy8EJRvNiwnQRE9dCrGlKnirR2QZweiVEJvNF54lxNNbeOQw+tr5kzKJceAWSfM gGQ1awj1Kwd6jKdH1dYO3DKLu5/sBDbd+WGuPP9Q= Received: from eusmges1new.samsung.com (unknown [203.254.199.242]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20190910123638eucas1p217975a57a3d938b79bcd3c9afecdc6fb~DE_u3Qcb-1661016610eucas1p2u; Tue, 10 Sep 2019 12:36:38 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges1new.samsung.com (EUCPMTA) with SMTP id 52.EB.04469.6D8977D5; Tue, 10 Sep 2019 13:36:38 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641~DE_uIU1DJ1360413604eucas1p2u; Tue, 10 Sep 2019 12:36:37 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20190910123637eusmtrp17d93565418338fe6a8edb22585aa325c~DE_uHa7Ij2381323813eusmtrp16; Tue, 10 Sep 2019 12:36:37 +0000 (GMT) X-AuditID: cbfec7f2-569ff70000001175-68-5d7798d6b9fa Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id EB.EC.04117.5D8977D5; Tue, 10 Sep 2019 13:36:37 +0100 (BST) Received: from AMDC3061.DIGITAL.local (unknown [106.120.51.75]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190910123636eusmtip11189d73e0cd292dac1eb81a70cbae68d~DE_tjHbJ71089810898eusmtip1v; Tue, 10 Sep 2019 12:36:36 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 2/6] dt-bindings: samsung: Update the CHIP ID binding documentation Date: Tue, 10 Sep 2019 14:36:14 +0200 Message-Id: <20190910123618.27985-3-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFuplleLIzCtJLcpLzFFi42LZduzned1rM8pjDfZPZLHYOGM9q8X8I+dY Lfofv2a2OH9+A7vFpsfXWC0u75rDZvG59wijxYzz+5gs1h65y27RuvcIu8XhN+2sFpsfHGNz 4PHYtKqTzWPzknqPvi2rGD0+b5ILYInisklJzcksSy3St0vgynjw6gBrQS9vxY0JT1gbGH9y dTFyckgImEjseTiNuYuRi0NIYAWjRNveVkYI5wujxOLr05ggnM+MEkeergbKcIC1nDnmBBFf ziixfWYDG1zH9pajLCBz2QQMJXqP9jGC2CIC6hKvTv0H28EssI5JYtmsZWCThAUiJJZMjACp YRFQlTi37hVYPa+AtcTKRZuZIe6Tl1i94QCYzSlgI3Fq9y6wiyQEutkl1izqY4O4yEVi+vMQ iHphiVfHt7BD2DISpyf3sEDUNzNK9Oy+zQ7hTGCUuH98ASNElbXE4eMXWUEGMQtoSqzfpQ8R dpS4tOYB1Hw+iRtvBUHCzEDmpG3TmSHCvBIdbUIQ1SoSv1dNZ4KwpSS6n/xngbA9JOYs2Qm2 SEign1Hi5U7rCYzysxB2LWBkXMUonlpanJueWmyYl1quV5yYW1yal66XnJ+7iRGYSE7/O/5p B+PXS0mHGAU4GJV4eDtaymOFWBPLiitzDzFKcDArifBe7yuNFeJNSaysSi3Kjy8qzUktPsQo zcGiJM5bzfAgWkggPbEkNTs1tSC1CCbLxMEp1cAoejuT4+IaC3U3DplpqcuaEnfe/qUu4jjP 147X/ezEa/yNQTs1BD0k85i8xM9mXv9+95arks/UuIZ5fe5T2hI8xV0CNsnHHJyykUd2cTf3 v3/Ljrsm7U+v/cG7bWrq7zXtJ1S2ZyT5uEmJKf9gqGM4lrs07lCC7taMhUpPnX9O/q5fUtuq u1+JpTgj0VCLuag4EQAiRUw0IAMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrLLMWRmVeSWpSXmKPExsVy+t/xu7pXZ5THGjw4K2uxccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwe a2VkqqRvZ5OSmpNZllqkb5egl/Hg1QHWgl7eihsTnrA2MP7k6mLk4JAQMJE4c8ypi5GLQ0hg KaPExQu3WSDiUhLzW5S6GDmBTGGJP9e62CBqPjFKrDs5hRUkwSZgKNF7tI8RpF5EQFNi7zqw GmaBHUwSe5/9ZQOJCwuESey5pQhSziKgKnFu3StGEJtXwFpi5aLNzBDz5SVWbzgAZnMK2Eic 2r2LCcQWAqp5/XEK6wRGvgWMDKsYRVJLi3PTc4uN9IoTc4tL89L1kvNzNzECg3rbsZ9bdjB2 vQs+xCjAwajEw9vRUh4rxJpYVlyZe4hRgoNZSYT3el9prBBvSmJlVWpRfnxRaU5q8SFGU6Cj JjJLiSbnAyMuryTe0NTQ3MLS0NzY3NjMQkmct0PgYIyQQHpiSWp2ampBahFMHxMHp1QDo+XE ffOsHuW8Zwl4WPjm+JzfX+Kbwv2mWU8J2/uqRDPJMsbdosNGsEqsffWtLZyueY92CZ0wZvS4 uoN5y3PLPw+WZBvmxa4xFmsJf25xeUJ2/EvZSYt4zzTnL+zg33FieZqqAYvtgitz/ySqlnqv Lp2SLTMxhFl26u8DEYf0Otk860L6/HbsVWIpzkg01GIuKk4EAE9kh36AAgAA X-CMS-MailID: 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641 X-Msg-Generator: CA X-RootMTR: 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641 References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch adds documentation of a new optional "samsung,asv-bin" property in the chipid device node and documents requirement of "syscon" compatible string. These additions are needed to support Exynos ASV (Adaptive Supply Voltage) feature. Signed-off-by: Sylwester Nawrocki Reviewed-by: Rob Herring --- Changes since v3: - none Changes since v2: - corrected patch summary line prefix, the patch moved in the sequence Changes since v1 (RFC): - new patch --- .../devicetree/bindings/arm/samsung/exynos-chipid.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) -- 2.17.1 diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt index 85c5dfd4a720..be3657e6c00c 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt @@ -1,12 +1,18 @@ -SAMSUNG Exynos SoCs Chipid driver. +SAMSUNG Exynos SoC series CHIPID subsystem Required properties: -- compatible : Should at least contain "samsung,exynos4210-chipid". +- compatible : Should at least contain "samsung,exynos4210-chipid", "syscon". - reg: offset and length of the register set +Optional properties: + - samsung,asv-bin : Adaptive Supply Voltage bin selection. This can be used + to determine the ASV bin of an SoC if respective information is missing + in the CHIPID registers or in the OTP memory. Possible values: 0...3. + Example: chipid@10000000 { compatible = "samsung,exynos4210-chipid"; reg = <0x10000000 0x100>; + samsung,asv-bin = <2>; };