From: Kamal Dasu <kdasu.kdev@gmail.com> To: ulf.hansson@linaro.org, robh+dt@kernel.org, krzk+dt@kernel.org, alcooperx@gmail.com Cc: f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, adrian.hunter@intel.com, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Kamal Dasu <kdasu.kdev@gmail.com> Subject: [PATCH 1/2] dt-bindings: mmc: Add Broadcom optional sdio_freq clock Date: Fri, 13 May 2022 16:19:06 -0400 [thread overview] Message-ID: <20220513201907.36470-2-kdasu.kdev@gmail.com> (raw) In-Reply-To: <20220513201907.36470-1-kdasu.kdev@gmail.com> 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 "max-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> --- .../bindings/mmc/brcm,sdhci-brcmstb.yaml | 25 ++++++++++++++----- 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml index b672202fff4e..3a4f6e75bf5e 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 +39,39 @@ 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 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: + - max-frequency + required: - compatible - reg - interrupts - clocks + - clock-names unevaluatedProperties: false -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Kamal Dasu <kdasu.kdev@gmail.com> To: ulf.hansson@linaro.org, robh+dt@kernel.org, krzk+dt@kernel.org, alcooperx@gmail.com Cc: f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, adrian.hunter@intel.com, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Kamal Dasu <kdasu.kdev@gmail.com> Subject: [PATCH 1/2] dt-bindings: mmc: Add Broadcom optional sdio_freq clock Date: Fri, 13 May 2022 16:19:06 -0400 [thread overview] Message-ID: <20220513201907.36470-2-kdasu.kdev@gmail.com> (raw) In-Reply-To: <20220513201907.36470-1-kdasu.kdev@gmail.com> 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 "max-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> --- .../bindings/mmc/brcm,sdhci-brcmstb.yaml | 25 ++++++++++++++----- 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml index b672202fff4e..3a4f6e75bf5e 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 +39,39 @@ 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 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: + - max-frequency + required: - compatible - reg - interrupts - clocks + - clock-names unevaluatedProperties: false -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-05-13 20:19 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-13 20:19 [PATCH 0/2] mmc: sdhci-brcmstb: Add support for optional sdio_freq clock Kamal Dasu 2022-05-13 20:19 ` Kamal Dasu 2022-05-13 20:19 ` Kamal Dasu [this message] 2022-05-13 20:19 ` [PATCH 1/2] dt-bindings: mmc: Add Broadcom " Kamal Dasu 2022-05-17 8:58 ` Krzysztof Kozlowski 2022-05-17 8:58 ` Krzysztof Kozlowski 2022-05-13 20:19 ` [PATCH 2/2] mmc: sdhci-brcmstb: Add ability to increase max clock rate for 72116b0 Kamal Dasu 2022-05-13 20:19 ` Kamal Dasu 2022-05-17 12:49 ` Ulf Hansson 2022-05-17 12:49 ` Ulf Hansson 2022-05-20 2:15 ` Alan Cooper 2022-05-20 2:15 ` Alan Cooper 2022-05-20 17:23 ` Kamal Dasu 2022-05-20 17:23 ` Kamal Dasu
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