spi: dt-bindings: qcom,spi-geni-qcom: allow three interconnects

Recent Qualcomm Geni SPI nodes, e.g. on SM8450, come also with three
interconnects. This fixes dtbs_check warnings like:

sm8450-qrd.dtb: spi@a98000: interconnects: [[46, 1, 0, 46, 4, 0], [47, 2, 0, 48, 12, 0], [49, 1, 0, 50, 1, 0]] is too long
sm8450-qrd.dtb: spi@a98000: interconnect-names: ['qup-core', 'qup-config', 'qup-memory'] is too long

Fixes: 5bdcae1fe1c5 ("spi: dt-bindings: qcom,spi-geni-qcom: convert to dtschema")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220720163841.7283-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

spi: dt-bindings: Fix unevaluatedProperties warnings in examples

The 'unevaluatedProperties' schema checks is not fully working and doesn't
catch some cases where there's a $ref to another schema. A fix is pending,
but results in new warnings in examples.

'spi-max-frequency' is supposed to be a per SPI peripheral device property,
not a SPI controller property, so drop it.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220526014141.2872567-1-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

spi: dt-bindings: qcom,spi-geni-qcom: convert to dtschema

Convert the GENI based Qualcomm Universal Peripheral (QUP) Serial
Peripheral Interface (SPI) bindings to DT Schema.

The original bindings in TXT were not complete, so add during conversion
properties already used in DTS and/or in the driver: dmas,
interconnects, operating points and power-domains.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220404064017.68634-1-krzysztof.kozlowski@linaro.org