linux-kernel - [PATCH v11 2/4] dt-bindings: pinctrl: mt8195: change pull up/down description

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Date:   Mon, 30 Aug 2021 08:36:01 +0800
From:   Zhiyong Tao <zhiyong.tao@...iatek.com>
To:     <robh+dt@...nel.org>, <linus.walleij@...aro.org>,
        <mark.rutland@....com>, <matthias.bgg@...il.com>,
        <sean.wang@...nel.org>
CC:     <srv_heupstream@...iatek.com>, <zhiyong.tao@...iatek.com>,
        <hui.liu@...iatek.com>, <eddie.huang@...iatek.com>,
        <light.hsieh@...iatek.com>, <biao.huang@...iatek.com>,
        <hongzhou.yang@...iatek.com>, <sean.wang@...iatek.com>,
        <seiya.wang@...iatek.com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-gpio@...r.kernel.org>
Subject: [PATCH v11 2/4] dt-bindings: pinctrl: mt8195: change pull up/down description

Change pull up/down description

Signed-off-by: Zhiyong Tao <zhiyong.tao@...iatek.com>
---
 .../bindings/pinctrl/pinctrl-mt8195.yaml      | 32 +++++++++++++++++--
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
index 2f12ec59eee5..a341ed9f0095 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
@@ -85,9 +85,35 @@ patternProperties:
           2/4/6/8/10/12/14/16mA in mt8195.
         enum: [0, 1, 2, 3, 4, 5, 6, 7]
 
-      bias-pull-down: true
-
-      bias-pull-up: true
+      bias-pull-down:
+        description: |
+          For pull down type is normal, it don't need add RSEL & R1R0 define
+          and resistance value.
+          For pull down type is PUPD/R0/R1 type, it can add R1R0 define to
+          set different resistance. It can support "MTK_PUPD_SET_R1R0_00" &
+          "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11"
+          define in mt8195.
+          For pull down type is RSEL, it can add RSEL define & resistance value(ohm)
+          to set different resistance. It can support "MTK_PULL_SET_RSEL_000" &
+          "MTK_PULL_SET_RSEL_001" & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" &
+          "MTK_PULL_SET_RSEL_100" & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" &
+          "MTK_PULL_SET_RSEL_111" define in mt8195. It can also support resistance value(ohm)
+          "75000" & "5000" in mt8195.
+
+      bias-pull-up:
+        description: |
+          For pull up type is normal, it don't need add RSEL & R1R0 define
+          and resistance value.
+          For pull up type is PUPD/R0/R1 type, it can add R1R0 define to
+          set different resistance. It can support "MTK_PUPD_SET_R1R0_00" &
+          "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11"
+          define in mt8195.
+          For pull up type is RSEL, it can add RSEL define & resistance value(ohm)
+          to set different resistance. It can support "MTK_PULL_SET_RSEL_000" &
+          "MTK_PULL_SET_RSEL_001" & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" &
+          "MTK_PULL_SET_RSEL_100" & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" &
+          "MTK_PULL_SET_RSEL_111" define in mt8195. It can also support resistance value(ohm)
+          "1000" & "1500" & "2000" & "3000" & "4000" & "5000" & "10000" & "75000" in mt8195.
 
       bias-disable: true
 
-- 
2.18.0