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Thu, 18 Jul 2019 14:31:34 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org Subject: [PATCH v2 7/9] soc: samsung: Update the CHIP ID DT binding documentation Date: Thu, 18 Jul 2019 16:30:42 +0200 Message-Id: <20190718143044.25066-8-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190718143044.25066-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprKKsWRmVeSWpSXmKPExsWy7djP87onmgxiDZ6s4bLYOGM9q8X8I+dY Lfofv2a2OH9+A7vFpsfXWC0u75rDZvG59wijxYzz+5gs1h65y26xaOsXdovWvUfYLQ6/aWe1 2PzgGJsDr8emVZ1sHpuX1Hv0bVnF6PF5k1wASxSXTUpqTmZZapG+XQJXxrYDB5kKJvJUrDn3 h72BcTZXFyMnh4SAicTU6U1sXYxcHEICKxgldv7cAeV8YZRY9KOXCcL5zCjxofU3O0zL6ssf WSASyxkl+hevZ4JrOdD7gQWkik3AUKL3aB8jiC0iICxxb+lydpAiZoF7TBKnn55lAkkICwRL bPwzGcxmEVCVWHj8LpjNK2At8fVVGyPEOnmJ1RsOMIPYnAI2EofvPmUEGSQhMJld4vqetVBF LhKfHvyDuk9Y4tXxLVC2jMT/nfOZIBqaGSV6dt9mh3AmMErcP74Aqtta4vDxi6xdjBxA92lK rN+lDxF2lFjRsAosLCHAJ3HjrSBImBnInLRtOjNEmFeio00IolpF4veq6UwQtpRE95P/LBAl HhLTbyVCAqgfGIybPrJNYJSfhbBrASPjKkbx1NLi3PTUYuO81HK94sTc4tK8dL3k/NxNjMDE cvrf8a87GPf9STrEKMDBqMTDG5BrECvEmlhWXJl7iFGCg1lJhPf2S/1YId6UxMqq1KL8+KLS nNTiQ4zSHCxK4rzVDA+ihQTSE0tSs1NTC1KLYLJMHJxSDYwqh5Y2cuy8n+v3YAfjs/8f5iu+ LvszQ2FT6UemlOw50yLnLm1fujrDZNH0rNXbYn+0XhIQTZ22q/vX4bzFd95lTNyp93bPw+Xv P3QxCuy/WpOssfDLuUn7mW8la0hn/LP0cJojdDmui1tYXODeA+Eft/m87SbsvOQxRaq+mOVU TqHtlJVGuTIuSizFGYmGWsxFxYkAt4+NIygDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrKLMWRmVeSWpSXmKPExsVy+t/xu7rHmwxiDc4u5LXYOGM9q8X8I+dY Lfofv2a2OH9+A7vFpsfXWC0u75rDZvG59wijxYzz+5gs1h65y26xaOsXdovWvUfYLQ6/aWe1 2PzgGJsDr8emVZ1sHpuX1Hv0bVnF6PF5k1wAS5SeTVF+aUmqQkZ+cYmtUrShhZGeoaWFnpGJ pZ6hsXmslZGpkr6dTUpqTmZZapG+XYJexrYDB5kKJvJUrDn3h72BcTZXFyMnh4SAicTqyx9Z uhi5OIQEljJKdK75w9bFyAGUkJKY36IEUSMs8edaFxtEzSdGiRWvDzKBJNgEDCV6j/Yxgtgi QEX3li5nByliFnjFJHF73n+wImGBQIn9V7+wg9gsAqoSC4/fBYvzClhLfH3VxgixQV5i9YYD zCA2p4CNxOG7T8HiQkA1s19eY5zAyLeAkWEVo0hqaXFuem6xkV5xYm5xaV66XnJ+7iZGYJBv O/Zzyw7GrnfBhxgFOBiVeHgDcg1ihVgTy4orcw8xSnAwK4nw3n6pHyvEm5JYWZValB9fVJqT WnyI0RToqInMUqLJ+cAIzCuJNzQ1NLewNDQ3Njc2s1AS5+0QOBgjJJCeWJKanZpakFoE08fE wSnVwKg89WWlto+hk4D0Kvavj5UEz2Ye8/W94XUppkYuxOWiG8O/sJojj9oEAkLTWYQWtrMm H2TZuCp+ZfTLiv81VVN32XEUahyM5orf1Wotv5AtmPvtP7XJj2aWsecyc+aa/utxuKg0SY3x TBTfbtmTQW7V7IVe/6W7DCTmy04/Ly89t+DJ04PrlViKMxINtZiLihMBgSTxIogCAAA= X-CMS-MailID: 20190718143135eucas1p2da5b7842b35327c60667064184619a9f X-Msg-Generator: CA X-RootMTR: 20190718143135eucas1p2da5b7842b35327c60667064184619a9f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190718143135eucas1p2da5b7842b35327c60667064184619a9f References: <20190718143044.25066-1-s.nawrocki@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190718_073141_037140_2CAB2E11 X-CRM114-Status: GOOD ( 11.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org, pankaj.dubey@samsung.com, b.zolnierkie@samsung.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, kgene@kernel.org, Sylwester Nawrocki , vireshk@kernel.org, linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- Changes since v1 (RFC): - new patch --- .../devicetree/bindings/arm/samsung/exynos-chipid.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) 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>; };