linux-kernel - [PATCH 2/2] dt-bindings: pinctrl: mt8186: Add and use drive-strength-microamp

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Message-ID: <20220725100253.10687-3-allen-kh.cheng@mediatek.com>
Date:   Mon, 25 Jul 2022 18:02:53 +0800
From:   Allen-KH Cheng <allen-kh.cheng@...iatek.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     <angelogioacchino.delregno@...labora.com>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Allen-KH Cheng <allen-kh.cheng@...iatek.com>
Subject: [PATCH 2/2] dt-bindings: pinctrl: mt8186: Add and use drive-strength-microamp

Commit e5fabbe43f3f ("pinctrl: mediatek: paris: Support generic
PIN_CONFIG_DRIVE_STRENGTH_UA") added support for using
drive-strength-microamp instead of mediatek,drive-strength-adv.

Similarly to the mt8192 and mt8195, there's no user of property
'mediatek,drive-strength-adv', hence removing it is safe.

Fixes: 338e953f1bd1(dt-bindings: pinctrl: mt8186: add pinctrl file and binding document)
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
---
 .../bindings/pinctrl/pinctrl-mt8186.yaml      | 29 ++-----------------
 1 file changed, 3 insertions(+), 26 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
index 6784885edc5c..1eeb885ce0c6 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
@@ -107,31 +107,8 @@ patternProperties:
           drive-strength:
             enum: [2, 4, 6, 8, 10, 12, 14, 16]
 
-          mediatek,drive-strength-adv:
-            description: |
-              Describe the specific driving setup property.
-              For I2C pins, the existing generic driving setup can only support
-              2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they
-              can support 0.125/0.25/0.5/1mA adjustment. If we enable specific
-              driving setup, the existing generic setup will be disabled.
-              The specific driving setup is controlled by E1E0EN.
-              When E1=0/E0=0, the strength is 0.125mA.
-              When E1=0/E0=1, the strength is 0.25mA.
-              When E1=1/E0=0, the strength is 0.5mA.
-              When E1=1/E0=1, the strength is 1mA.
-              EN is used to enable or disable the specific driving setup.
-              Valid arguments are described as below:
-              0: (E1, E0, EN) = (0, 0, 0)
-              1: (E1, E0, EN) = (0, 0, 1)
-              2: (E1, E0, EN) = (0, 1, 0)
-              3: (E1, E0, EN) = (0, 1, 1)
-              4: (E1, E0, EN) = (1, 0, 0)
-              5: (E1, E0, EN) = (1, 0, 1)
-              6: (E1, E0, EN) = (1, 1, 0)
-              7: (E1, E0, EN) = (1, 1, 1)
-              So the valid arguments are from 0 to 7.
-            $ref: /schemas/types.yaml#/definitions/uint32
-            enum: [0, 1, 2, 3, 4, 5, 6, 7]
+          drive-strength-microamp:
+            enum: [125, 250, 500, 1000]
 
           bias-pull-down:
             oneOf:
@@ -293,7 +270,7 @@ examples:
           pinmux = <PINMUX_GPIO127__FUNC_SCL0>,
                    <PINMUX_GPIO128__FUNC_SDA0>;
           bias-pull-up = <MTK_PULL_SET_RSEL_001>;
-          mediatek,drive-strength-adv = <7>;
+          drive-strength-microamp = <1000>;
         };
       };
     };
-- 
2.18.0