dt-bindings: i2c: qcom-geni: document I2C Master Hub serial I2C engine

The I2C Master Hub is a stripped down version of the GENI Serial Engine
QUP Wrapper Controller but only supporting I2C serial engines without
DMA support.

Document the I2C Serial Engine variant used within the I2C Master
Hub Wrapper.

This serial engine variant lacks DMA support, requires a core clock,
and since DMA support is lacking the memory interconnect path isn't
needed.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Neil Armstrong 2022-11-29 15:47:02 +01:00 коммит произвёл Wolfram Sang
Родитель af45de8368
Коммит cb29d4e6a9
1 изменённых файлов: 54 добавлений и 10 удалений

Просмотреть файл

@ -10,18 +10,19 @@ maintainers:
- Andy Gross <agross@kernel.org>
- Bjorn Andersson <bjorn.andersson@linaro.org>
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
properties:
compatible:
const: qcom,geni-i2c
enum:
- qcom,geni-i2c
- qcom,geni-i2c-master-hub
clocks:
maxItems: 1
minItems: 1
maxItems: 2
clock-names:
const: se
minItems: 1
maxItems: 2
clock-frequency:
default: 100000
@ -35,13 +36,12 @@ properties:
- const: rx
interconnects:
minItems: 2
maxItems: 3
interconnect-names:
items:
- const: qup-core
- const: qup-config
- const: qup-memory
minItems: 2
maxItems: 3
interrupts:
maxItems: 1
@ -71,6 +71,50 @@ required:
- clock-names
- reg
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
- if:
properties:
compatible:
contains:
const: qcom,geni-i2c-master-hub
then:
properties:
clocks:
minItems: 2
clock-names:
items:
- const: se
- const: core
dmas: false
dma-names: false
interconnects:
maxItems: 2
interconnect-names:
items:
- const: qup-core
- const: qup-config
else:
properties:
clocks:
maxItems: 1
clock-names:
const: se
interconnects:
minItems: 3
interconnect-names:
items:
- const: qup-core
- const: qup-config
- const: qup-memory
unevaluatedProperties: false
examples: