linux-kernel - [PATCH 2/4] dt-bindings: mmc: iproc-sdhci: Add clock-frequency support

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Date:   Mon, 22 Mar 2021 19:58:15 +0100
From:   Nicolas Saenz Julienne <nsaenz@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        Saenz Julienne <nsaenz@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>
Cc:     f.fainelli@...il.com, phil@...pberrypi.com,
        tim.gover@...pberrypi.com, adrian.hunter@...el.com,
        alcooperx@...il.com, nsaenzjulienne@...e.de,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>
Subject: [PATCH 2/4] dt-bindings: mmc: iproc-sdhci: Add clock-frequency support

Users might want to choose a different clock frequency than whatever the
bootloader provided at probe time. Add 'clock-frequency' bindings.

Signed-off-by: Nicolas Saenz Julienne <nsaenz@...nel.org>
---
 Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml
index 19d84f3ef9e6..9d0d97b2c0a7 100644
--- a/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml
@@ -35,6 +35,12 @@ properties:
     type: boolean
     description: Specifies that controller should use auto CMD12
 
+  clock-frequency:
+    description:
+      Should be the frequency (in Hz) of the core clock. If this is specified
+      and the core clock is specified then we'll try to set the core clock to
+      this at probe time.
+
 required:
   - compatible
   - reg
-- 
2.30.2