[PATCH 02/13] dt-bindings: i2c: nomadik: add mobileye,eyeq5-i2c bindings and example

Théo Lebrun
2024-02-15T16:52:36Z

Add EyeQ5 bindings to the existing Nomadik I2C dt-bindings. Add the two
EyeQ5-specific properties behind a conditional. Add an example for this
compatible.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
---
.../devicetree/bindings/i2c/st,nomadik-i2c.yaml | 44 ++++++++++++++++++++--
1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
index e6b95e3765ac..eaade14b6d4c 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@linaro.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
@@ -83,6 +85,25 @@ required:

unevaluatedProperties: false

+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mobileye,eyeq5-i2c
+ then:
+ properties:
+ mobileye,olb:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: A phandle to the OLB syscon.
+ mobileye,id:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Platform-wide controller ID (integer starting from zero).
+ required:
+ - mobileye,olb
+ - mobileye,id
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
@@ -116,5 +137,20 @@ examples:
clocks = <&i2c0clk>, <&pclki2c0>;
clock-names = "mclk", "apb_pclk";
};
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ i2c@300000 {
+ 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>;
+ mobileye,id = <0>;
+ };

...

--
2.43.1