Add optional properties for mmc hosts which are used to set clk delays
for different speed modes in the controller.
Signed-off-by: Manish Narani <manish.narani@xxxxxxxxxx>
---
.../devicetree/bindings/mmc/mmc-controller.yaml | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
index 080754e0ef35..305b2016bc17 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
@@ -333,6 +333,18 @@ patternProperties:
required:
- reg
+ "^clk-phase-(legacy|sd-hs|mmc-(hs|hs[24]00|ddr52)|uhs-(sdr(12|25|50|104)|ddr50))$":
+ minItems: 2
+ maxItems: 2
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - minimum: 0
+ maximum: 359
+ description:
+ Set the clock (phase) delays which are to be configured in the
+ controller while switching to particular speed mode. These values
+ are in pair of degrees.
+
dependencies:
cd-debounce-delay-ms: [ cd-gpios ]
fixed-emmc-driver-type: [ non-removable ]
@@ -351,6 +363,7 @@ examples:
keep-power-in-suspend;
wakeup-source;
mmc-pwrseq = <&sdhci0_pwrseq>;
+ clk-phase-sd-hs = <63>, <72>;
};
- |
--
2.17.1
