From: Sylwester Nawrocki <s.nawrocki@samsung.com>
To: krzk@kernel.org, vireshk@kernel.org, robh+dt@kernel.org
Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-pm@vger.kernel.org, sboyd@kernel.org,
b.zolnierkie@samsung.com, roger.lu@mediatek.com,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com
Subject: [PATCH v5 2/4] dt-bindings: arm: samsung: Update the CHIPID binding for ASV
Date: Wed, 16 Oct 2019 16:57:54 +0200 [thread overview]
Message-ID: <20191016145756.16004-3-s.nawrocki@samsung.com> (raw)
In-Reply-To: <20191016145756.16004-1-s.nawrocki@samsung.com>
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.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
Depends on patch ("8d0daa4c89c9 dt-bindings: arm: samsung: Convert
Exynos Chipid bindings to json-schema") already applied to Rob's
dt/next.
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 | 31 +++++++++++++++++--
1 file changed, 28 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml
index 9c573ad7dc7d..df84d9e9f4c2 100644
--- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml
@@ -9,17 +9,42 @@ title: Samsung Exynos SoC series Chipid driver
maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
+# 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
+ allOf:
+ - 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>;
};
--
2.17.1
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next prev parent reply other threads:[~2019-10-16 14:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191016145806eucas1p2d522901fc79e1ca6e03f1bb516a81370@eucas1p2.samsung.com>
2019-10-16 14:57 ` [PATCH v5 0/4] Exynos Adaptive Supply Voltage support Sylwester Nawrocki
[not found] ` <CGME20191016145810eucas1p1b31400c9b2e7f30cdf6deeb4ccee2788@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 1/4] PM / OPP: Support adjusting OPP voltages at runtime Sylwester Nawrocki
2019-10-17 6:42 ` Viresh Kumar
2019-10-21 11:23 ` Krzysztof Kozlowski
2019-10-22 2:23 ` Viresh Kumar
2019-10-22 18:43 ` Krzysztof Kozlowski
[not found] ` <CGME20191016145812eucas1p1a3cf3f44a2cff4c32a2270334630c4a2@eucas1p1.samsung.com>
2019-10-16 14:57 ` Sylwester Nawrocki [this message]
2019-10-16 16:16 ` [PATCH v5 2/4] dt-bindings: arm: samsung: Update the CHIPID binding for ASV Krzysztof Kozlowski
2019-10-17 9:03 ` Sylwester Nawrocki
[not found] ` <CGME20191016145813eucas1p1623db169f1ee93f88cb2c75090804747@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 3/4] soc: samsung: Add Exynos Adaptive Supply Voltage driver Sylwester Nawrocki
2019-10-22 19:04 ` Krzysztof Kozlowski
2019-10-23 10:48 ` Sylwester Nawrocki
2019-10-23 11:20 ` Krzysztof Kozlowski
[not found] ` <CGME20191016145814eucas1p10d50d438abb850fd82f622122b223196@eucas1p1.samsung.com>
2019-10-16 14:57 ` [PATCH v5 4/4] ARM: EXYNOS: Enable exynos-asv driver for ARCH_EXYNOS Sylwester Nawrocki
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