linux-kernel - [PATCH v9 02/15] dt-bindings: mmc: cdns: Add AMD Pensando Elba SoC

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Message-ID: <20230119035136.21603-3-blarson@amd.com>
Date:   Wed, 18 Jan 2023 19:51:23 -0800
From:   Brad Larson <blarson@....com>
To:     <linux-arm-kernel@...ts.infradead.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <linux-spi@...r.kernel.org>, <adrian.hunter@...el.com>,
        <alcooperx@...il.com>, <andy.shevchenko@...il.com>,
        <arnd@...db.de>, <brad@...sando.io>, <blarson@....com>,
        <brendan.higgins@...ux.dev>, <briannorris@...omium.org>,
        <brijeshkumar.singh@....com>, <catalin.marinas@....com>,
        <davidgow@...gle.com>, <gsomlo@...il.com>, <gerg@...ux-m68k.org>,
        <krzk@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <lee@...nel.org>, <lee.jones@...aro.org>, <broonie@...nel.org>,
        <yamada.masahiro@...ionext.com>, <p.zabel@...gutronix.de>,
        <piotrs@...ence.com>, <p.yadav@...com>, <rdunlap@...radead.org>,
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        <tonyhuang.sunplus@...il.com>, <ulf.hansson@...aro.org>,
        <vaishnav.a@...com>, <will@...nel.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH v9 02/15] dt-bindings: mmc: cdns: Add AMD Pensando Elba SoC

AMD Pensando Elba ARM 64-bit SoC is integrated with this IP and
explicitly controls byte-lane enables.

Signed-off-by: Brad Larson <blarson@....com>

---

Changes since v6:
- Add reset-names and resets properties
- Add if/then on property amd,pensando-elba-sd4hc to set reg property
  values for minItems and maxItems

---
 .../devicetree/bindings/mmc/cdns,sdhci.yaml   | 28 ++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
index 8b1a0fdcb5e3..f7dd6f990f96 100644
--- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
@@ -16,12 +16,14 @@ properties:
   compatible:
     items:
       - enum:
+          - amd,pensando-elba-sd4hc
           - microchip,mpfs-sd4hc
           - socionext,uniphier-sd4hc
       - const: cdns,sd4hc
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   interrupts:
     maxItems: 1
@@ -111,12 +113,36 @@ properties:
     minimum: 0
     maximum: 0x7f
 
+  reset-names:
+    items:
+      - const: hw
+
+  resets:
+    description:
+      optional. phandle to the system reset controller with line index
+      for mmc hw reset line if exists.
+    maxItems: 1
+
 required:
   - compatible
   - reg
   - interrupts
   - clocks
 
+if:
+  properties:
+    compatible:
+      const: amd,pensando-elba-sd4hc
+then:
+  properties:
+    reg:
+      minItems: 2
+else:
+  properties:
+    reg:
+      minItems: 1
+      maxItems: 2
+
 unevaluatedProperties: false
 
 examples:
-- 
2.17.1