On Tue, 2021-08-31 at 17:13 -0500, Rob Herring wrote:

On Mon, Aug 30, 2021 at 08:36:01AM +0800, Zhiyong Tao wrote:

quoted

Change pull up/down description

Every commit is a 'change'. Your commit msg should explain 'why', not 
what the diff is.

Hi robh,
we will add 'why' explanation in the commit msg in v12.

quoted

Signed-off-by: Zhiyong Tao <redacted>
---
 .../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.

Sounds like constraints on the values. Please write a schema.

we will add a schema here in v12.

Thanks

quoted

+
+      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

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