From: Sylwester Nawrocki <s.nawrocki@samsung.com>
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 <s.nawrocki@samsung.com>
Subject: [PATCH v4 2/6] dt-bindings: samsung: Update the CHIP ID binding documentation
Date: Tue, 10 Sep 2019 14:36:14 +0200 [thread overview]
Message-ID: <20190910123618.27985-3-s.nawrocki@samsung.com> (raw)
In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com>
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 <s.nawrocki@samsung.com>
---
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(-)
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>;
};
--
2.17.1
next prev parent reply other threads:[~2019-09-10 12:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20190910123632eucas1p2cf941da5f74b892288dd5a92ff9fa9fb@eucas1p2.samsung.com>
2019-09-10 12:36 ` [PATCH v4 0/6] Exynos Adaptive Supply Voltage support Sylwester Nawrocki
[not found] ` <CGME20190910123636eucas1p250ec04901f227b947cc38936563f63b2@eucas1p2.samsung.com>
2019-09-10 12:36 ` [PATCH v4 1/6] opp: Handle target/min/max voltage in dev_pm_opp_adjust_voltage() Sylwester Nawrocki
2019-10-02 14:33 ` Krzysztof Kozlowski
2019-10-02 15:54 ` Sylwester Nawrocki
2019-10-14 6:26 ` Viresh Kumar
2019-10-16 9:15 ` Sylwester Nawrocki
[not found] ` <CGME20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641@eucas1p2.samsung.com>
2019-09-10 12:36 ` Sylwester Nawrocki [this message]
2019-09-17 18:13 ` [PATCH v4 2/6] dt-bindings: samsung: Update the CHIP ID binding documentation Rob Herring
2019-10-02 15:48 ` Krzysztof Kozlowski
2019-10-02 16:00 ` Sylwester Nawrocki
[not found] ` <CGME20190910123639eucas1p2ab65f8d2bba3ca9da831d2549dc62cfb@eucas1p2.samsung.com>
2019-09-10 12:36 ` [PATCH v4 3/6] soc: samsung: Add Exynos Adaptive Supply Voltage driver Sylwester Nawrocki
[not found] ` <CGME20190910123643eucas1p2666bc55d5b36efbbb02565793a2c1f86@eucas1p2.samsung.com>
2019-09-10 12:36 ` [PATCH v4 4/6] ARM: EXYNOS: Enable exynos-asv driver for ARCH_EXYNOS Sylwester Nawrocki
[not found] ` <CGME20190910123644eucas1p234a55b19e68046900539195f55ea60dd@eucas1p2.samsung.com>
2019-09-10 12:36 ` [PATCH v4 5/6] ARM: dts: Add "syscon" compatible string to chipid node Sylwester Nawrocki
2019-10-02 15:44 ` Krzysztof Kozlowski
[not found] ` <CGME20190910123647eucas1p176bc817bbdae813e5aa9ab4745f9c285@eucas1p1.samsung.com>
2019-09-10 12:36 ` [PATCH v4 6/6] ARM: dts: Add samsung,asv-bin property for odroidxu3-lite Sylwester Nawrocki
2019-10-02 15:44 ` Krzysztof Kozlowski
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