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Message-ID: <1626868353-96475-2-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com>
Date: Wed, 21 Jul 2021 17:22:30 +0530
From: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
To: Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Michal Simek <michal.simek@...inx.com>,
"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
CC: <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-gpio@...r.kernel.org>, <git@...inx.com>,
<saikrishna12468@...il.com>,
Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
Subject: [PATCH 1/4] dt-bindings: pinctrl: pinctrl-zynq: Convert to yaml
Convert the Zynq pinctrl binding file to yaml.
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
---
.../bindings/pinctrl/xlnx,zynq-pinctrl.txt | 105 ---------
.../bindings/pinctrl/xlnx,zynq-pinctrl.yaml | 216 ++++++++++++++++++
2 files changed, 216 insertions(+), 105 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.txt
create mode 100644 Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.yaml
diff --git a/Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.txt
deleted file mode 100644
index f488b0f77406..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.txt
+++ /dev/null
@@ -1,105 +0,0 @@
- Binding for Xilinx Zynq Pinctrl
-
-Required properties:
-- compatible: "xlnx,zynq-pinctrl"
-- syscon: phandle to SLCR
-- reg: Offset and length of pinctrl space in SLCR
-
-Please refer to pinctrl-bindings.txt in this directory for details of the
-common pinctrl bindings used by client devices, including the meaning of the
-phrase "pin configuration node".
-
-Zynq's pin configuration nodes act as a container for an arbitrary number of
-subnodes. Each of these subnodes represents some desired configuration for a
-pin, a group, or a list of pins or groups. This configuration can include the
-mux function to select on those pin(s)/group(s), and various pin configuration
-parameters, such as pull-up, slew rate, etc.
-
-Each configuration node can consist of multiple nodes describing the pinmux and
-pinconf options. Those nodes can be pinmux nodes or pinconf nodes.
-
-The name of each subnode is not important; all subnodes should be enumerated
-and processed purely based on their content.
-
-Required properties for pinmux nodes are:
- - groups: A list of pinmux groups.
- - function: The name of a pinmux function to activate for the specified set
- of groups.
-
-Required properties for configuration nodes:
-One of:
- - pins: a list of pin names
- - groups: A list of pinmux groups.
-
-The following generic properties as defined in pinctrl-bindings.txt are valid
-to specify in a pinmux subnode:
- groups, function
-
-The following generic properties as defined in pinctrl-bindings.txt are valid
-to specify in a pinconf subnode:
- groups, pins, bias-disable, bias-high-impedance, bias-pull-up, slew-rate,
- low-power-disable, low-power-enable
-
- Valid arguments for 'slew-rate' are '0' and '1' to select between slow and fast
- respectively.
-
- Valid values for groups are:
- ethernet0_0_grp, ethernet1_0_grp, mdio0_0_grp, mdio1_0_grp,
- qspi0_0_grp, qspi1_0_grp, qspi_fbclk, qspi_cs1_grp, spi0_0_grp - spi0_2_grp,
- spi0_X_ssY (X=0..2, Y=0..2), spi1_0_grp - spi1_3_grp,
- spi1_X_ssY (X=0..3, Y=0..2), sdio0_0_grp - sdio0_2_grp,
- sdio1_0_grp - sdio1_3_grp, sdio0_emio_wp, sdio0_emio_cd, sdio1_emio_wp,
- sdio1_emio_cd, smc0_nor, smc0_nor_cs1_grp, smc0_nor_addr25_grp, smc0_nand,
- can0_0_grp - can0_10_grp, can1_0_grp - can1_11_grp, uart0_0_grp - uart0_10_grp,
- uart1_0_grp - uart1_11_grp, i2c0_0_grp - i2c0_10_grp, i2c1_0_grp - i2c1_10_grp,
- ttc0_0_grp - ttc0_2_grp, ttc1_0_grp - ttc1_2_grp, swdt0_0_grp - swdt0_4_grp,
- gpio0_0_grp - gpio0_53_grp, usb0_0_grp, usb1_0_grp
-
- Valid values for pins are:
- MIO0 - MIO53
-
- Valid values for function are:
- ethernet0, ethernet1, mdio0, mdio1, qspi0, qspi1, qspi_fbclk, qspi_cs1,
- spi0, spi0_ss, spi1, spi1_ss, sdio0, sdio0_pc, sdio0_cd, sdio0_wp,
- sdio1, sdio1_pc, sdio1_cd, sdio1_wp,
- smc0_nor, smc0_nor_cs1, smc0_nor_addr25, smc0_nand, can0, can1, uart0, uart1,
- i2c0, i2c1, ttc0, ttc1, swdt0, gpio0, usb0, usb1
-
-The following driver-specific properties as defined here are valid to specify in
-a pin configuration subnode:
- - io-standard: Configure the pin to use the selected IO standard according to
- this mapping:
- 1: LVCMOS18
- 2: LVCMOS25
- 3: LVCMOS33
- 4: HSTL
-
-Example:
- pinctrl0: pinctrl@700 {
- compatible = "xlnx,pinctrl-zynq";
- reg = <0x700 0x200>;
- syscon = <&slcr>;
-
- pinctrl_uart1_default: uart1-default {
- mux {
- groups = "uart1_10_grp";
- function = "uart1";
- };
-
- conf {
- groups = "uart1_10_grp";
- slew-rate = <0>;
- io-standard = <1>;
- };
-
- conf-rx {
- pins = "MIO49";
- bias-high-impedance;
- };
-
- conf-tx {
- pins = "MIO48";
- bias-disable;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.yaml
new file mode 100644
index 000000000000..2da1969e02ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/xlnx,zynq-pinctrl.yaml
@@ -0,0 +1,216 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/xlnx,zynq-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Zynq Pinctrl
+
+maintainers:
+ - Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
+
+description: |
+ Please refer to pinctrl-bindings.txt in this directory for details of the
+ common pinctrl bindings used by client devices, including the meaning of the
+ phrase "pin configuration node".
+
+ Zynq's pin configuration nodes act as a container for an arbitrary number of
+ subnodes. Each of these subnodes represents some desired configuration for a
+ pin, a group, or a list of pins or groups. This configuration can include the
+ mux function to select on those pin(s)/group(s), and various pin configuration
+ parameters, such as pull-up, slew rate, etc.
+
+ Each configuration node can consist of multiple nodes describing the pinmux and
+ pinconf options. Those nodes can be pinmux nodes or pinconf nodes.
+
+ The name of each subnode is not important; all subnodes should be enumerated
+ and processed purely based on their content.
+
+properties:
+ compatible:
+ const: xlnx,zynq-pinctrl
+
+ reg:
+ description: Specifies the base address and size of the SLCR space.
+ maxItems: 1
+
+ syscon:
+ description:
+ phandle to the SLCR.
+
+patternProperties:
+ '^(.*-)?(default|gpio)$':
+ type: object
+ patternProperties:
+ '^mux':
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for pin muxes,
+ which in turn use below standard properties.
+ $ref: pinmux-node.yaml#
+
+ properties:
+ groups:
+ description:
+ List of groups to select (either this or "pins" must be
+ specified), available groups for this subnode.
+ items:
+ enum: [ethernet0_0_grp, ethernet1_0_grp, mdio0_0_grp,
+ mdio1_0_grp, qspi0_0_grp, qspi1_0_grp, qspi_fbclk,
+ qspi_cs1_grp, spi0_0_grp, spi0_1_grp, spi0_2_grp,
+ spi0_0_ss0, spi0_0_ss1, spi0_0_ss2, spi0_1_ss0,
+ spi0_1_ss1, spi0_1_ss2, spi0_2_ss0, spi0_2_ss1,
+ spi0_2_ss2, spi1_0_grp, spi1_1_grp, spi1_2_grp,
+ spi1_3_grp, spi1_0_ss0, spi1_0_ss1, spi1_0_ss2,
+ spi1_1_ss0, spi1_1_ss1, spi1_1_ss2, spi1_2_ss0,
+ spi1_2_ss1, spi1_2_ss2, spi1_3_ss0, spi1_3_ss1,
+ spi1_3_ss2, sdio0_0_grp, sdio0_1_grp, sdio0_2_grp,
+ sdio1_0_grp, sdio1_1_grp, sdio1_2_grp, sdio1_3_grp,
+ sdio0_emio_wp, sdio0_emio_cd, sdio1_emio_wp,
+ sdio1_emio_cd, smc0_nor, smc0_nor_cs1_grp,
+ smc0_nor_addr25_grp, smc0_nand, can0_0_grp, can0_1_grp,
+ can0_2_grp, can0_3_grp, can0_4_grp, can0_5_grp,
+ can0_6_grp, can0_7_grp, can0_8_grp, can0_9_grp,
+ can0_10_grp, can1_0_grp, can1_1_grp, can1_2_grp,
+ can1_3_grp, can1_4_grp, can1_5_grp, can1_6_grp,
+ can1_7_grp, can1_8_grp, can1_9_grp, can1_10_grp,
+ can1_11_grp, uart0_0_grp, uart0_1_grp, uart0_2_grp,
+ uart0_3_grp, uart0_4_grp, uart0_5_grp, uart0_6_grp,
+ uart0_7_grp, uart0_8_grp, uart0_9_grp, uart0_10_grp,
+ uart1_0_grp, uart1_1_grp, uart1_2_grp, uart1_3_grp,
+ uart1_4_grp, uart1_5_grp, uart1_6_grp, uart1_7_grp,
+ uart1_8_grp, uart1_9_grp, uart1_10_grp, uart1_11_grp,
+ i2c0_0_grp, i2c0_1_grp, i2c0_2_grp, i2c0_3_grp,
+ i2c0_4_grp, i2c0_5_grp, i2c0_6_grp, i2c0_7_grp,
+ i2c0_8_grp, i2c0_9_grp, i2c0_10_grp, i2c1_0_grp,
+ i2c1_1_grp, i2c1_2_grp, i2c1_3_grp, i2c1_4_grp,
+ i2c1_5_grp, i2c1_6_grp, i2c1_7_grp, i2c1_8_grp,
+ i2c1_9_grp, i2c1_10_grp, ttc0_0_grp, ttc0_1_grp,
+ ttc0_2_grp, ttc1_0_grp, ttc1_1_grp, ttc1_2_grp,
+ swdt0_0_grp, swdt0_1_grp, swdt0_2_grp, swdt0_3_grp,
+ swdt0_4_grp, gpio0_0_grp, gpio0_1_grp, gpio0_2_grp,
+ gpio0_3_grp, gpio0_4_grp, gpio0_5_grp, gpio0_6_grp,
+ gpio0_7_grp, gpio0_8_grp, gpio0_9_grp, gpio0_10_grp,
+ gpio0_11_grp, gpio0_12_grp, gpio0_13_grp, gpio0_14_grp,
+ gpio0_15_grp, gpio0_16_grp, gpio0_17_grp, gpio0_18_grp,
+ gpio0_19_grp, gpio0_20_grp, gpio0_21_grp, gpio0_22_grp,
+ gpio0_23_grp, gpio0_24_grp, gpio0_25_grp, gpio0_26_grp,
+ gpio0_27_grp, gpio0_28_grp, gpio0_29_grp, gpio0_30_grp,
+ gpio0_31_grp, gpio0_32_grp, gpio0_33_grp, gpio0_34_grp,
+ gpio0_35_grp, gpio0_36_grp, gpio0_37_grp, gpio0_38_grp,
+ gpio0_39_grp, gpio0_40_grp, gpio0_41_grp, gpio0_42_grp,
+ gpio0_43_grp, gpio0_44_grp, gpio0_45_grp, gpio0_46_grp,
+ gpio0_47_grp, gpio0_48_grp, gpio0_49_grp, gpio0_50_grp,
+ gpio0_51_grp, gpio0_52_grp, gpio0_53_grp, usb0_0_grp,
+ usb1_0_grp]
+ maxItems: 54
+
+ function:
+ description:
+ Specify the alternative function to be configured for the
+ given pin groups.
+ enum: [ethernet0, ethernet1, mdio0, mdio1, qspi0, qspi1, qspi_fbclk,
+ qspi_cs1, spi0, spi0_ss, spi1, spi1_ss, sdio0, sdio0_pc,
+ sdio0_cd, sdio0_wp, sdio1, sdio1_pc, sdio1_cd, sdio1_wp,
+ smc0_nor, smc0_nor_cs1, smc0_nor_addr25, smc0_nand, can0,
+ can1, uart0, uart1, i2c0, i2c1, ttc0, ttc1, swdt0, gpio0,
+ usb0, usb1]
+
+ required:
+ - groups
+ - function
+
+ additionalProperties: false
+
+ '^conf':
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for pin configurations,
+ which in turn use the standard properties below.
+ $ref: pincfg-node.yaml#
+
+ properties:
+ groups:
+ description:
+ List of pin groups as mentioned above.
+
+ pins:
+ description:
+ List of pin names to select in this subnode.
+ items:
+ pattern: '^MIO([0-9]|[1-4][0-9]|5[0-3])$'
+ maxItems: 54
+
+ bias-pull-up: true
+
+ bias-pull-down: true
+
+ bias-disable: true
+
+ bias-high-impedance: true
+
+ low-power-enable: true
+
+ low-power-disable: true
+
+ 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"
+ enum: [1, 2, 3, 4]
+
+ oneOf:
+ - required: [ groups ]
+ - required: [ pins ]
+
+ additionalProperties: false
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - syscon
+
+additionalProperties: false
+
+examples:
+ - |
+ pinctrl0: pinctrl@700 {
+ compatible = "xlnx,zynq-pinctrl";
+ reg = <0x700 0x200>;
+ syscon = <&slcr>;
+
+ pinctrl_uart1_default: uart1-default {
+ mux {
+ groups = "uart1_10_grp";
+ function = "uart1";
+ };
+
+ conf {
+ groups = "uart1_10_grp";
+ slew-rate = <0>;
+ io-standard = <1>;
+ };
+
+ conf-rx {
+ pins = "MIO49";
+ bias-high-impedance;
+ };
+
+ conf-tx {
+ pins = "MIO48";
+ bias-disable;
+ };
+ };
+ };
+
+ uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1_default>;
+ };
+
+...
--
2.17.1
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