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Thu, 17 Oct 2019 10:29:53 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20191017092953eucas1p259c1e03eb2cb4d19aa48eaa2e3cca2dc~OZTPtAhJM0648306483eucas1p2e; Thu, 17 Oct 2019 09:29:53 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20191017092953eusmtrp17f62f839f61fa99d9025415421ea344e~OZTPsTIIP1633216332eusmtrp1K; Thu, 17 Oct 2019 09:29:53 +0000 (GMT) X-AuditID: cbfec7f2-54fff70000001175-50-5da83491a45c Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 48.BD.04166.19438AD5; Thu, 17 Oct 2019 10:29:53 +0100 (BST) Received: from AMDC3061.DIGITAL.local (unknown [106.120.51.75]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20191017092953eusmtip2f4ef56add6868611954ec7fd29136e49~OZTPNNBIX2907729077eusmtip2K; Thu, 17 Oct 2019 09:29:53 +0000 (GMT) From: Sylwester Nawrocki To: robh+dt@kernel.org Cc: krzk@kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v6] dt-bindings: arm: samsung: Update the CHIPID binding for ASV Date: Thu, 17 Oct 2019 11:29:39 +0200 Message-Id: <20191017092939.25899-1-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrAIsWRmVeSWpSXmKPExsWy7djPc7oTTVbEGvRNsrHYOGM9q8X8I+dY Lc6f38BusenxNVaLz71HGC1mnN/HZLH2yF12i9a9R9gtDr9pZ3Xg9Ni0qpPNY/OSeo++LasY PT5vkgtgieKySUnNySxLLdK3S+DKuDt1E3PBVqGKtat7WBoYD/N1MXJySAiYSOyc283YxcjF ISSwglFi+e4HUM4XRokv/WeYIZzPjBL/vj5jhmlZcvMGK0RiOaPE/Ul9YAmwljlbxEBsNgFD id6jfUCjODhEBMQk9q4VBQkzC/xklHj0WgLEFhYIktj9fAsjiM0ioCoxb80ZJpByXgFridat JhCr5CVWbzgAdoOEwH02iWU397NCJFwkpv/cDWULS7w6voUdwpaROD25hwWioZlRomf3bXYI ZwLQoccXMEJUWUscPn6RFWQbs4CmxPpd+hBhR4nl07rBbpYQ4JO48VYQ4mY+iUnbpjNDhHkl OtqEIKpVJH6vms4EYUtJdD/5zwJR4iEx4UcyJEBiJW7M/Mk4gVFuFsKqBYyMqxjFU0uLc9NT iw3zUsv1ihNzi0vz0vWS83M3MQLTwel/xz/tYPx6KekQowAHoxIP7wTG5bFCrIllxZW5hxgl OJiVRHjntyyJFeJNSaysSi3Kjy8qzUktPsQozcGiJM5bzfAgWkggPbEkNTs1tSC1CCbLxMEp 1cDYP/nZwoasRSo53RzTKtaf5V3RGuCbufXdAq24LPGfslwf6h/F/Gjcurzh9KJ5MoeqFz6O CsgI3GPjd+xFmUXg5zXrOs7eKQ57WF8xdXtf763G+W83/ji14+rsTfpfd1xbk/XNjdvSsyrk bEJad8udWKXbvr8yfX721BXXP8psusd8k1MrgbtLiaU4I9FQi7moOBEAArexdQMDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrOLMWRmVeSWpSXmKPExsVy+t/xe7oTTVbEGmx8o2KxccZ6Vov5R86x Wpw/v4HdYtPja6wWn3uPMFrMOL+PyWLtkbvsFq17j7BbHH7TzurA6bFpVSebx+Yl9R59W1Yx enzeJBfAEqVnU5RfWpKqkJFfXGKrFG1oYaRnaGmhZ2RiqWdobB5rZWSqpG9nk5Kak1mWWqRv l6CXcXfqJuaCrUIVa1f3sDQwHubrYuTkkBAwkVhy8wZrFyMXh5DAUkaJg71HWLoYOYASUhLz W5QgaoQl/lzrYoOo+cQocfzdcUaQBJuAoUTv0T5GkHoRATGJvWtFQWqYBRqZJG5smwVWIywQ IPHkHUgzJweLgKrEvDVnmEDqeQWsJVq3mkDMl5dYveEA8wRGngWMDKsYRVJLi3PTc4sN9YoT c4tL89L1kvNzNzECA3HbsZ+bdzBe2hh8iFGAg1GJh3cC4/JYIdbEsuLK3EOMEhzMSiK881uW xArxpiRWVqUW5ccXleakFh9iNAXaPZFZSjQ5HxgleSXxhqaG5haWhubG5sZmFkrivB0CB2OE BNITS1KzU1MLUotg+pg4OKUaGJM38n/oc5+cs2Udp0718TYvnTUZtiFiJl1/KqTb513jeND3 Z/7VH63Ldye+93h5e/bhCcYvDKOERMvaXR3uPu0R/yt9KTmF337VKn4ft6OHjDzj5Vb1yX1i urv8C+NBvkmZa6a1FqYG/XlgvrBP77WS79uon0z5Bd1ZaqtuHlk2OZNdbOWjG0osxRmJhlrM RcWJAAP7r5xaAgAA X-CMS-MailID: 20191017092953eucas1p259c1e03eb2cb4d19aa48eaa2e3cca2dc X-Msg-Generator: CA X-RootMTR: 20191017092953eucas1p259c1e03eb2cb4d19aa48eaa2e3cca2dc X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20191017092953eucas1p259c1e03eb2cb4d19aa48eaa2e3cca2dc References: Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch adds documentation of 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. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Sylwester Nawrocki --- Depends on patch ("8d0daa4c89c9 dt-bindings: arm: samsung: Convert Exynos Chipid bindings to json-schema") already applied to Rob's dt/next. Changes since v5: - removed uneeded allOf from 'compatible' property section Changes since v4: - converted to YAML Changes since v3: - none Changes since v2: - corrected patch summary line prefix, the patch moved in the sequence Changes since v1 (RFC): - new patch --- .../bindings/arm/samsung/exynos-chipid.yaml | 26 ++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) -- 2.17.1 diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml index 9c573ad7dc7d..c7f06aa1963c 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml @@ -9,17 +9,41 @@ title: Samsung Exynos SoC series Chipid driver maintainers: - Krzysztof Kozlowski +# Custom select to avoid matching all nodes with 'syscon' +select: + properties: + compatible: + contains: + const: samsung,exynos4210-chipid + required: + - compatible + properties: compatible: items: - const: samsung,exynos4210-chipid + - const: syscon reg: maxItems: 1 + samsung,asv-bin: + description: + 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. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [ 0, 1, 2, 3 ] + +required: + - compatible + - reg + examples: - | chipid@10000000 { - compatible = "samsung,exynos4210-chipid"; + compatible = "samsung,exynos4210-chipid", "syscon"; reg = <0x10000000 0x100>; + samsung,asv-bin = <2>; };