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Date: Mon, 4 Jul 2022 19:15:28 +0300
From: "Viorel Suman (OSS)" <viorel.suman@....nxp.com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Dong Aisheng <aisheng.dong@....com>,
Fabio Estevam <festevam@...il.com>,
Shawn Guo <shawnguo@...nel.org>,
Stefan Agner <stefan@...er.ch>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Linus Walleij <linus.walleij@...aro.org>,
Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Amit Kucheria <amitk@...nel.org>,
Zhang Rui <rui.zhang@...el.com>,
Wim Van Sebroeck <wim@...ux-watchdog.org>,
Guenter Roeck <linux@...ck-us.net>,
Sascha Hauer <s.hauer@...gutronix.de>,
NXP Linux Team <linux-imx@....com>,
Abel Vesa <abelvesa@...nel.org>,
Viorel Suman <viorel.suman@....com>,
Peng Fan <peng.fan@....com>,
Mirela Rabulea <mirela.rabulea@....com>,
Liu Ying <victor.liu@....com>,
Oliver Graute <oliver.graute@...oconnector.com>,
Ming Qian <ming.qian@....com>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
linux-input@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-rtc@...r.kernel.org, linux-pm@...r.kernel.org,
linux-watchdog@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Viorel Suman <viorel.suman@....nxp.com>,
Abel Vesa <abel.vesa@....com>
Subject: [PATCH v7 02/15] dt-bindings: pinctrl: imx: Add fsl,scu-iomux yaml file
From: Abel Vesa <abel.vesa@....com>
In order to replace the fsl,scu txt file from bindings/arm/freescale,
we need to split it between the right subsystems. This patch documents
separately the 'iomux/pinctrl' child node of the SCU main node.
Signed-off-by: Abel Vesa <abel.vesa@....com>
Signed-off-by: Viorel Suman <viorel.suman@....com>
---
.../bindings/arm/freescale/fsl,scu.txt | 40 ----------
.../bindings/pinctrl/fsl,scu-pinctrl.yaml | 74 +++++++++++++++++++
2 files changed, 74 insertions(+), 40 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index ef7f5222ac48..5ec2a031194e 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -79,33 +79,7 @@ Required properties:
See detailed Resource ID list from:
include/dt-bindings/firmware/imx/rsrc.h
-Pinctrl bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the i.MX common pinctrl binding[3].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-iomuxc",
- "fsl,imx8qxp-iomuxc",
- "fsl,imx8dxl-iomuxc".
-
-Required properties for Pinctrl sub nodes:
-- fsl,pins: Each entry consists of 3 integers which represents
- the mux and config setting for one pin. The first 2
- integers <pin_id mux_mode> are specified using a
- PIN_FUNC_ID macro, which can be found in
- <dt-bindings/pinctrl/pads-imx8qm.h>,
- <dt-bindings/pinctrl/pads-imx8qxp.h>,
- <dt-bindings/pinctrl/pads-imx8dxl.h>.
- The last integer CONFIG is the pad setting value like
- pull-up on this pin.
-
- Please refer to i.MX8QXP Reference Manual for detailed
- CONFIG settings.
-
[2] Documentation/devicetree/bindings/power/power-domain.yaml
-[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
RTC bindings based on SCU Message Protocol
------------------------------------------------------------
@@ -184,18 +158,6 @@ firmware {
&lsio_mu1 1 3
&lsio_mu1 3 3>;
- iomuxc {
- compatible = "fsl,imx8qxp-iomuxc";
-
- pinctrl_lpuart0: lpuart0grp {
- fsl,pins = <
- SC_P_UART0_RX_ADMA_UART0_RX 0x06000020
- SC_P_UART0_TX_ADMA_UART0_TX 0x06000020
- >;
- };
- ...
- };
-
ocotp: imx8qx-ocotp {
compatible = "fsl,imx8qxp-scu-ocotp";
#address-cells = <1>;
@@ -234,7 +196,5 @@ firmware {
serial@...60000 {
...
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lpuart0>;
power-domains = <&pd IMX_SC_R_UART_0>;
};
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
new file mode 100644
index 000000000000..45ea565ce238
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/fsl,scu-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Pinctrl bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@....com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+ This binding uses the i.MX common pinctrl binding.
+ (Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt)
+
+allOf:
+ - $ref: pinctrl.yaml#
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-iomuxc
+ - fsl,imx8qxp-iomuxc
+ - fsl,imx8dxl-iomuxc
+
+patternProperties:
+ 'grp$':
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+
+ properties:
+ fsl,pins:
+ description:
+ each entry consists of 3 integers and represents the pin ID, the mux value
+ and pad setting for the pin. The first 2 integers - pin_id and mux_val - are
+ specified using a PIN_FUNC_ID macro, which can be found in
+ <include/dt-bindings/pinctrl/pads-imx8qxp.h>. The last integer is
+ the pad setting value like pull-up on this pin. Please refer to the
+ appropriate i.MX8 Reference Manual for detailed pad CONFIG settings.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: |
+ "pin_id" indicates the pin ID
+ - description: |
+ "mux_val" indicates the mux value to be applied.
+ - description: |
+ "pad_setting" indicates the pad configuration value to be applied.
+
+ required:
+ - fsl,pins
+
+ additionalProperties: false
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ pinctrl {
+ compatible = "fsl,imx8qxp-iomuxc";
+
+ pinctrl_lpuart0: lpuart0grp {
+ fsl,pins = <
+ 111 0 0x06000020
+ 112 0 0x06000020
+ >;
+ };
+ };
--
2.25.1
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