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Message-Id: <20230916-vf610-gpio-v2-2-40823da788d7@nxp.com>
Date: Sat, 16 Sep 2023 10:03:58 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <brgl@...ev.pl>,
Andy Shevchenko <andy@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Stefan Agner <stefan@...er.ch>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>
Cc: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Peng Fan <peng.fan@....com>
Subject: [PATCH v2 2/6] dt-bindings: gpio: vf610: correct i.MX8ULP and
i.MX93
From: Peng Fan <peng.fan@....com>
i.MX8ULP and i.MX93 actually has two interrupts for each gpio
controller, one for Trustzone non-secure world, one for secure world.
And they has one register based, not two as i.MX7ULP or VF610.
Although the Linux Kernel driver gpio-vf610.c could work with
fsl,imx7ulp-gpio compatible, it is based on some tricks did in
device tree with some offset added to base address.
So actually i.MX8ULP/i.MX93 is not compatible with i.MX7ULP.
Last, i.MX93 is directly derived from i.MX8ULP, so make i.MX93 GPIO
compatible with i.MX8ULP
Signed-off-by: Peng Fan <peng.fan@....com>
---
.../devicetree/bindings/gpio/gpio-vf610.yaml | 41 +++++++++++++++++++---
1 file changed, 37 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
index 59427d97adf5..8c1f87a1a393 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
@@ -20,6 +20,7 @@ description: |
properties:
compatible:
oneOf:
+ - const: fsl,imx8ulp-gpio
- const: fsl,vf610-gpio
- items:
- const: fsl,imx7ulp-gpio
@@ -27,16 +28,21 @@ properties:
- items:
- enum:
- fsl,imx93-gpio
- - fsl,imx8ulp-gpio
- - const: fsl,imx7ulp-gpio
+ - const: fsl,imx8ulp-gpio
reg:
description: The first reg tuple represents the PORT module, the second tuple
represents the GPIO module.
- maxItems: 2
+ items:
+ - description: PORT register base address
+ - description: GPIO register base address
+ minItems: 1
interrupts:
- maxItems: 1
+ items:
+ - description: GPIO Trustzone non-secure interrupt number
+ - description: GPIO Trustzone secure interrupt number
+ minItems: 1
interrupt-controller: true
@@ -78,6 +84,33 @@ required:
- "#gpio-cells"
- gpio-controller
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,vf610-gpio
+ - fsl,imx7ulp-gpio
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: GPIO interrupt number
+ reg:
+ items:
+ - description: PORT register base address
+ - description: GPIO register base address
+ else:
+ properties:
+ interrupts:
+ items:
+ - description: GPIO Trustzone non-secure interrupt number
+ - description: GPIO Trustzone secure interrupt number
+ reg:
+ items:
+ - description: GPIO register base address
+
additionalProperties: false
examples:
--
2.37.1
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