linux-kernel - [PATCH 1/5] dt-bindings: mmc: sdhci: document sdhci-caps and sdhci-caps-mask

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Message-Id: <20221204094717.74016-1-krzysztof.kozlowski@linaro.org>
Date:   Sun,  4 Dec 2022 10:47:13 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>, abel.vesa@...aro.org,
        Johan Hovold <johan+linaro@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 1/5] dt-bindings: mmc: sdhci: document sdhci-caps and sdhci-caps-mask

The Linux SDHCI driver core reads 'sdhci-caps' and 'sdhci-caps-mask'
properties and few devices already use it (e.g. Qualcomm SM8450), so add
them to a shared SDHCI bindings.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/mmc/sdhci-am654.yaml  |  4 +--
 .../devicetree/bindings/mmc/sdhci-common.yaml | 32 +++++++++++++++++++
 .../devicetree/bindings/mmc/sdhci-msm.yaml    |  2 +-
 MAINTAINERS                                   |  1 +
 4 files changed, 35 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-common.yaml

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
index 382d5face49a..c4c73ee1422c 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
+++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
@@ -11,7 +11,7 @@ maintainers:
   - Ulf Hansson <ulf.hansson@...aro.org>
 
 allOf:
-  - $ref: mmc-controller.yaml#
+  - $ref: sdhci-common.yaml#
 
 properties:
   compatible:
@@ -49,8 +49,6 @@ properties:
       - const: clk_ahb
       - const: clk_xin
 
-  sdhci-caps-mask: true
-
   dma-coherent:
     type: boolean
 
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-common.yaml b/Documentation/devicetree/bindings/mmc/sdhci-common.yaml
new file mode 100644
index 000000000000..1664615187c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-common.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/sdhci-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SDHCI Controller Common Properties
+
+maintainers:
+  - Adrian Hunter <adrian.hunter@...el.com>
+
+description:
+  Common properties present on Secure Digital Host Controller Interface (SDHCI)
+  devices.
+
+properties:
+  sdhci-caps:
+    $ref: /schemas/types.yaml#/definitions/uint64
+    description:
+      Additionally present SDHCI capabilities - values for SDHCI_CAPABILITIES
+      and SDHCI_CAPABILITIES_1 registers.
+
+  sdhci-caps-mask:
+    $ref: /schemas/types.yaml#/definitions/uint64
+    description:
+      Masked SDHCI capabilities to remove from SDHCI_CAPABILITIES and
+      SDHCI_CAPABILITIES_1 registers.
+
+allOf:
+  - $ref: mmc-controller.yaml#
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
index fade797af150..2736c9a79f65 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
@@ -169,7 +169,7 @@ required:
   - interrupts
 
 allOf:
-  - $ref: mmc-controller.yaml#
+  - $ref: sdhci-common.yaml#
 
   - if:
       properties:
diff --git a/MAINTAINERS b/MAINTAINERS
index 3583c5f6889d..be71999cea73 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18732,6 +18732,7 @@ SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
 M:	Adrian Hunter <adrian.hunter@...el.com>
 L:	linux-mmc@...r.kernel.org
 S:	Supported
+F:	Documentation/devicetree/bindings/mmc/sdhci-common.yaml
 F:	drivers/mmc/host/sdhci*
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) MICROCHIP DRIVER
-- 
2.34.1