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Message-ID: <20191104231427.GA7606@bogus>
Date: Mon, 4 Nov 2019 17:14:27 -0600
From: Rob Herring <robh@...nel.org>
To: Manish Narani <manish.narani@...inx.com>
Cc: ulf.hansson@...aro.org, mark.rutland@....com,
adrian.hunter@...el.com, michal.simek@...inx.com,
jolly.shah@...inx.com, nava.manne@...inx.com,
rajan.vaja@...inx.com, linux-mmc@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, git@...inx.com
Subject: Re: [PATCH v5 4/8] dt-bindings: mmc: Add optional generic properties
for mmc
On Fri, Nov 01, 2019 at 11:35:49AM +0530, Manish Narani wrote:
> 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@...inx.com>
> ---
> .../bindings/mmc/mmc-controller.yaml | 92 +++++++++++++++++++
> 1 file changed, 92 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
> index 080754e0ef35..87a83d966851 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
> @@ -212,6 +212,98 @@ properties:
> description:
> eMMC HS400 enhanced strobe mode is supported
>
> + # Below mentioned are the clock (phase) delays which are to be configured
> + # in the controller while switching to particular speed mode. The range
> + # of values are 0 to 359 degrees.
> +
> + clk-phase-legacy:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for Legacy Mode.
> +
> + clk-phase-mmc-hs:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair degrees for MMC HS.
> +
> + clk-phase-sd-hs:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for SD HS.
> +
> + clk-phase-uhs-sdr12:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for SDR12.
> +
> + clk-phase-uhs-sdr25:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for SDR25.
> +
> + clk-phase-uhs-sdr50:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for SDR50.
> +
> + clk-phase-uhs-sdr104:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for SDR104.
> +
> + clk-phase-uhs-ddr50:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for SD DDR50.
> +
> + clk-phase-mmc-ddr52:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for MMC DDR52.
> +
> + clk-phase-mmc-hs200:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for MMC HS200.
> +
> + clk-phase-mmc-hs400:
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32
> + - minimum: 0
> + - maximum: 359
> + description:
> + Input/Output Clock Delay pair in degrees for MMC HS400.
This can be condensed into:
patternProperties:
"^clk-phase-(legacy|sd-hs|mmc-(hs|hs[24]00|ddr52)|uhs-(sdr(12|25|50|104)|ddr50))$":
Or if you want to divide them between SD and MMC ones, that would be
fine for me.
Rob
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