[PATCH] dt-bindings: pinctrl: ti,pinctrl-palmas: Convert to DT schema

[Bhargav Joshi]

Convert TI Palmas pin control text binding to DT schema. The legacy
binding allowed any subnode name. Restrict them to standard prefixes to
prevent the validator from accidentally evaluating standard integer
properties (like phandle) as child nodes.

Signed-off-by: Bhargav Joshi <j.bhargav.u@xxxxxxxxx>
---
 .../bindings/pinctrl/ti,palmas-pinctrl.yaml        | 175 +++++++++++++++++++++
 1 file changed, 175 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/ti,palmas-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/ti,palmas-pinctrl.yaml
new file mode 100644
index 000000000000..c07e3a782ef0
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/ti,palmas-pinctrl.yaml
@@ -0,0 +1,175 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/ti,palmas-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI Palmas Pincontrol
+
+maintainers:
+  - Laxman Dewangan <ldewangan@xxxxxxxxxx>
+
+description:
+  The pins of Palmas device can be set on different option and provides
+  the configuration for Pull UP/DOWN, open drain etc.
+
+allOf:
+  - $ref: pinctrl.yaml#
+
+properties:
+  compatible:
+    enum:
+      - ti,palmas-pinctrl
+      - ti,tps65913-pinctrl
+      - ti,tps80036-pinctrl
+
+  ti,palmas-enable-dvfs1:
+    type: boolean
+    description:
+      Enable DVFS1. Configure pins for DVFS1 mode.
+      Selection primary or secondary function associated to I2C2_SCL_SCE,
+      I2C2_SDA_SDO pin/pad for DVFS1 interface.
+
+  ti,palmas-enable-dvfs2:
+    type: boolean
+    description:
+      Enable DVFS2. Configure pins for DVFS2 mode.
+      Selection primary or secondary function associated to GPADC_START
+      and SYSEN2 pin/pad for DVFS2 interface.
+
+  ti,palmas-override-powerhold:
+    type: boolean
+    description:
+      This is applicable for PMICs for which GPIO7 is configured in POWERHOLD
+      mode which has higher priority over DEV_ON bit and keeps the PMIC
+      supplies on even after the DEV_ON bit is turned off. This property enables
+      driver to over ride the POWERHOLD value to GPIO7 so as to turn off the PMIC
+      in power off scenarios. So for GPIO7 if ti,palmas-override-powerhold is set
+      then the GPIO_7 field should never be muxed to anything else.
+      It should be set to POWERHOLD by default and only in case of
+      power off scenarios the driver will over ride the mux value.
+
+patternProperties:
+  '^(pinmux|pins?-[a-z0-9-]+)$':
+    type: object
+    additionalProperties: false
+    patternProperties:
+      '^(pin.*|gpio[0-9]+|vac|powergood|nreswarm|pwrdown|gpadc_start|reset_in|nsleep|enable[12]|int)$':
+        type: object
+        allOf:
+          - $ref: /schemas/pinctrl/pinmux-node.yaml
+          - $ref: /schemas/pinctrl/pincfg-node.yaml
+        additionalProperties: false
+        properties:
+          pins:
+            items:
+              enum:
+                - gpio0
+                - gpio1
+                - gpio2
+                - gpio3
+                - gpio4
+                - gpio5
+                - gpio6
+                - gpio7
+                - gpio8
+                - gpio9
+                - gpio10
+                - gpio11
+                - gpio12
+                - gpio13
+                - gpio14
+                - gpio15
+                - vac
+                - powergood
+                - nreswarm
+                - pwrdown
+                - gpadc_start
+                - reset_in
+                - nsleep
+                - enable1
+                - enable2
+                - int
+
+          function:
+            description:
+              Selects the mux function. There are 4 special functions opt0,
+              opt1, opt2 and opt3. If any of these functions is selected then
+              directly pins register will be written with 0, 1, 2 or 3
+              respectively if it is valid for that pin or list of pins.
+            enum:
+              - gpio
+              - led
+              - pwm
+              - regen
+              - sysen
+              - clk32kgaudio
+              - id
+              - vbus_det
+              - chrg_det
+              - vac
+              - vacok
+              - powergood
+              - usb_psel
+              - msecure
+              - pwrhold
+              - int
+              - nreswarm
+              - simrsto
+              - simrsti
+              - low_vbat
+              - wireless_chrg1
+              - rcm
+              - pwrdown
+              - gpadc_start
+              - reset_in
+              - nsleep
+              - enable
+              - opt0
+              - opt1
+              - opt2
+              - opt3
+
+          bias-disable: true
+          bias-pull-up: true
+          bias-pull-down: true
+          drive-open-drain: true
+
+        required:
+          - pins
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    pmic {
+        pinctrl {
+            compatible = "ti,tps65913-pinctrl";
+            ti,palmas-enable-dvfs1;
+            pinctrl-names = "default";
+            pinctrl-0 = <&palmas_pins_state>;
+
+            pinmux {
+                gpio0 {
+                    pins = "gpio0";
+                    function = "id";
+                    bias-pull-up;
+                };
+
+                vac {
+                    pins = "vac";
+                    function = "vacok";
+                    bias-pull-down;
+                };
+
+                gpio5 {
+                    pins = "gpio5";
+                    function = "opt0";
+                    drive-open-drain = <1>;
+                };
+            };
+        };
+    };

---
base-commit: 818bebeb63dd6bf5f4e07e145f6cdbace520a34c
change-id: 20260822-ti-pinctrl-palmas-ee56e29a3d43

Best regards,
-- 
Bhargav