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Message-Id: <20240229-mbly-i2c-v2-1-b32ed18c098c@bootlin.com>
Date: Thu, 29 Feb 2024 19:10:49 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: Linus Walleij <linus.walleij@...aro.org>,
Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: linux-arm-kernel@...ts.infradead.org, linux-i2c@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-mips@...r.kernel.org, Gregory Clement <gregory.clement@...tlin.com>,
Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Tawfik Bayouk <tawfik.bayouk@...ileye.com>,
Théo Lebrun <theo.lebrun@...tlin.com>
Subject: [PATCH v2 01/11] dt-bindings: i2c: nomadik: add mobileye,eyeq5-i2c
bindings and example
Add EyeQ5 bindings to the existing Nomadik I2C dt-bindings. Add the
EyeQ5-specific property behind a conditional. Add an example for this
compatible.
Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
.../devicetree/bindings/i2c/st,nomadik-i2c.yaml | 48 ++++++++++++++++++++--
1 file changed, 44 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
index 16024415a4a7..2d9d5b276762 100644
--- a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
@@ -14,9 +14,6 @@ description: The Nomadik I2C host controller began its life in the ST
maintainers:
- Linus Walleij <linus.walleij@...aro.org>
-allOf:
- - $ref: /schemas/i2c/i2c-controller.yaml#
-
# Need a custom select here or 'arm,primecell' will match on lots of nodes
select:
properties:
@@ -24,6 +21,7 @@ select:
contains:
enum:
- st,nomadik-i2c
+ - mobileye,eyeq5-i2c
required:
- compatible
@@ -39,6 +37,10 @@ properties:
- const: stericsson,db8500-i2c
- const: st,nomadik-i2c
- const: arm,primecell
+ # The variant found on Mobileye EyeQ5
+ - items:
+ - const: mobileye,eyeq5-i2c
+ - const: arm,primecell
reg:
maxItems: 1
@@ -55,7 +57,7 @@ properties:
- items:
- const: mclk
- const: apb_pclk
- # Clock name in DB8500
+ # Clock name in DB8500 or EyeQ5
- items:
- const: i2cclk
- const: apb_pclk
@@ -70,6 +72,16 @@ properties:
minimum: 1
maximum: 400000
+ mobileye,olb:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - items:
+ - description: Phandle to OLB system controller node.
+ - description: Platform-wide controller ID (integer starting from zero).
+ description:
+ The phandle pointing to OLB system controller node, with the I2C
+ controller index.
+
required:
- compatible
- reg
@@ -79,6 +91,20 @@ required:
unevaluatedProperties: false
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mobileye,eyeq5-i2c
+ then:
+ required:
+ - mobileye,olb
+ else:
+ properties:
+ mobileye,olb: false
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
@@ -111,5 +137,19 @@ examples:
clocks = <&i2c0clk>, <&pclki2c0>;
clock-names = "mclk", "apb_pclk";
};
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ i2c@...000 {
+ compatible = "mobileye,eyeq5-i2c", "arm,primecell";
+ reg = <0x300000 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 1 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&i2c_ser_clk>, <&i2c_clk>;
+ clock-names = "i2cclk", "apb_pclk";
+ mobileye,olb = <&olb 0>;
+ };
...
--
2.44.0
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