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| author |   Manish Narani <manish.narani@xilinx.com> | 2019-11-20 12:17:25 +0530 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2019-11-20 13:55:55 +0100 |
| commit | fec81c5bca2499b4a263667860018c2ce47f4f51 (patch) | |
| tree | 59de910587c7ba6f8dfebc70f7a0d016a5640894 /Documentation/devicetree | |
| parent | mmc: sdhci-of-arasan: Add sampling clock for a phy to use (diff) | |
| download | wireguard-linux-fec81c5bca2499b4a263667860018c2ce47f4f51.tar.xz wireguard-linux-fec81c5bca2499b4a263667860018c2ce47f4f51.zip | |
dt-bindings: mmc: Add optional generic properties for mmc
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@xilinx.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc-controller.yaml | 13 |
1 files changed, 13 insertions, 0 deletions
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>; }; - | |