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From: Alina Yu <alina_yu@richtek.com>
To: <lgirdwood@gmail.com>, <broonie@kernel.org>, <robh+dt@kernel.org>,
	<krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<alina_yu@richtek.com>, <johnny_lai@richtek.com>,
	<cy_huang@richtek.com>
Subject: [PATCH v3 6/6] regulator: dt-bindings: rtq2208: Add property to get ldo of RTQ2208 is adjustable or not
Date: Fri, 10 May 2024 20:06:25 +0800	[thread overview]
Message-ID: <6a3a90d9aa2022dfb92e124e417f3e72c2f28b0b.1715340537.git.alina_yu@richtek.com> (raw)
In-Reply-To: <cover.1715340537.git.alina_yu@richtek.com>

Since there is no way to check is ldo is adjustable or not.
As discussing in v2 series, 'richtek,fixed-microvolt' is added for that.
user is supposed to know whether vout of ldo is adjustable.

Signed-off-by: Alina Yu <alina_yu@richtek.com>
---
 Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml b/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml
index 609c066..6212f44 100644
--- a/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml
+++ b/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml
@@ -75,6 +75,13 @@ properties:
         description:
           regulator description for ldo[1-2].
 
+        properties:
+          richtek,fixed-microvolt:
+            description: |
+              If it exists, the voltage is unadjustable.
+              There is no risk-free method for software to determine whether the ldo vout is fixed or not.
+              Therefore, it can only be done in this way.
+
 required:
   - compatible
   - reg
@@ -177,6 +184,7 @@ examples:
             };
           };
           ldo1 {
+            richtek,fixed-microvolt = <1200000>;
             regulator-min-microvolt = <1200000>;
             regulator-max-microvolt = <1200000>;
             regulator-always-on;
-- 
2.7.4


  parent reply	other threads:[~2024-05-10 12:06 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-10 12:06 [PATCH v3 0/6] Fix rtq2208 BUCK ramp_delay and LDO dvs setting Alina Yu
2024-05-10 12:06 ` [PATCH v3 1/6] regulator: rtq2208: Fix invalid memory access when devm_of_regulator_put_matches is called Alina Yu
2024-05-15 15:47   ` Mark Brown
2024-05-10 12:06 ` [PATCH v3 2/6] regulator: rtq2208: Fix LDO vsel setting Alina Yu
2024-05-10 12:06 ` [PATCH v3 3/6] regulator: rtq2208: Fix LDO discharge register Alina Yu
2024-05-10 12:06 ` [PATCH v3 4/6] regulator: rtq2208: Fix the BUCK ramp_delay range to maximum of 16mVstep/us Alina Yu
2024-05-10 12:06 ` [PATCH v3 5/6] regulator: rtq2208: Fix LDO to be compatible with both fixed and adjustable vout Alina Yu
2024-05-10 12:06 ` Alina Yu [this message]
2024-05-13 16:22   ` [PATCH v3 6/6] regulator: dt-bindings: rtq2208: Add property to get ldo of RTQ2208 is adjustable or not Conor Dooley
2024-05-14 10:34     ` Mark Brown
2024-05-14 18:01       ` Conor Dooley
2024-05-15  7:38         ` Alina Yu
2024-05-15  8:06           ` Conor Dooley
2024-05-15  9:02             ` Alina Yu
2024-05-15 15:51               ` Conor Dooley
2024-05-15 16:04                 ` Mark Brown
2024-05-15 16:16                   ` Conor Dooley
2024-05-15 12:10         ` Mark Brown
2024-05-15 15:48           ` Conor Dooley

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