Commit 98682689 authored Sep 08, 2025 by Sarthak Garg Committed by Ulf Hansson Sep 12, 2025

dt-bindings: mmc: controller: Add max-sd-hs-hz property



Introduce a new optional device tree property max-sd-hs-hz to
limit the maximum frequency (in Hz) used for SD cards operating in
High-Speed (HS) mode due to any board electrical limitations.

Signed-off-by: Sarthak Garg <quic_sartgarg@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent 08b68ca5

Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml

+8 −0

Original line number	Diff line number	Diff line
		@@ -93,6 +93,14 @@ properties:
		minimum: 400000
		maximum: 384000000

		max-sd-hs-hz:
		description: \|
		Maximum frequency (in Hz) to be used for SD cards operating in
		High-Speed (HS) mode.
		minimum: 400000
		maximum: 50000000
		default: 50000000

		disable-wp:
		$ref: /schemas/types.yaml#/definitions/flag
		description: