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dt-bindings: pinctrl-zynq: Replace 'io-standard' with 'power-source'

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Replace custom pin configuration option 'io-standard' with generic property
'power-source' for Zynq pinctrl also add dt-binding file contains pin
configuration defines for Zynq pinctrl.

Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1626868353-96475-3-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Sai Krishna Potthuri 2021-07-21 17:22:31 +05:30 committed by Linus Walleij
parent 153df45acd
commit ef641c449e
2 changed files with 20 additions and 5 deletions
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8
Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.yaml
View File

@ -156,10 +156,7 @@ patternProperties:
slew-rate:
enum: [0, 1]
io-standard:
description:
Selects the IO standard for MIO pins, this is driver specific.
$ref: "/schemas/types.yaml#/definitions/uint32"
power-source:
enum: [1, 2, 3, 4]
oneOf:
@ -179,6 +176,7 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/pinctrl/pinctrl-zynq.h>
pinctrl0: pinctrl@700 {
compatible = "xlnx,zynq-pinctrl";
reg = <0x700 0x200>;
@ -193,7 +191,7 @@ examples:
conf {
groups = "uart1_10_grp";
slew-rate = <0>;
io-standard = <1>;
power-source = <IO_STANDARD_LVCMOS18>;
};
conf-rx {

17
include/dt-bindings/pinctrl/pinctrl-zynq.h Normal file
View File

@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* MIO pin configuration defines for Xilinx Zynq
*
* Copyright (C) 2021 Xilinx, Inc.
*/
#ifndef _DT_BINDINGS_PINCTRL_ZYNQ_H
#define _DT_BINDINGS_PINCTRL_ZYNQ_H
/* Configuration options for different power supplies */
#define IO_STANDARD_LVCMOS18 1
#define IO_STANDARD_LVCMOS25 2
#define IO_STANDARD_LVCMOS33 3
#define IO_STANDARD_HSTL 4
#endif /* _DT_BINDINGS_PINCTRL_ZYNQ_H */