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| author | Kamal Dasu <kdasu.kdev@gmail.com> | 2022-05-20 20:31:07 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-07-12 12:25:33 +0200 |
| commit | 2f8690ef64128bcbda24f0c426dff59835df7fbf (patch) | |
| tree | 45cecf401245c0b4ae5f3a5e1eb6fdfb46d6ecc5 /Documentation | |
| parent | dt-bindings: mmc: sdhci-msm: Fix issues in yaml bindings (diff) | |
| download | linux-2f8690ef64128bcbda24f0c426dff59835df7fbf.tar.xz linux-2f8690ef64128bcbda24f0c426dff59835df7fbf.zip | |
dt-bindings: mmc: Add Broadcom optional sdio_freq clock
The 72116B0 has improved SDIO controllers that allow the max clock
rate to be increased from a max of 100MHz to a max of 150MHz.
Optional "sdio_freq" clock is used to drive the bus clock if present
optional property "clock-frequency" specifies a base clock frequency
in Hz that overrides the base clock frequency in the CAPS registers.
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220520183108.47358-2-kdasu.kdev@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml index 5ecdac9de484..dead421e17d6 100644 --- a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml +++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml @@ -10,9 +10,6 @@ maintainers: - Al Cooper <alcooperx@gmail.com> - Florian Fainelli <f.fainelli@gmail.com> -allOf: - - $ref: mmc-controller.yaml# - properties: compatible: oneOf: @@ -42,23 +39,46 @@ properties: maxItems: 1 clocks: - maxItems: 1 - description: - handle to core clock for the sdhci controller. + minItems: 1 + items: + - description: handle to core clock for the sdhci controller + - description: handle to improved 150Mhz clock for sdhci controller (Optional clock) clock-names: + minItems: 1 items: - const: sw_sdio + - const: sdio_freq # Optional clock + + clock-frequency: + description: + Maximum operating frequency of sdio_freq sdhci controller clock + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 100000000 + maximum: 150000000 sdhci,auto-cmd12: type: boolean description: Specifies that controller should use auto CMD12 +allOf: + - $ref: mmc-controller.yaml# + - if: + properties: + clock-names: + contains: + const: sdio_freq + + then: + required: + - clock-frequency + required: - compatible - reg - interrupts - clocks + - clock-names unevaluatedProperties: false |