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

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Message-Id: <20230119033918.44117-3-blarson@amd.com>
Date:   Wed, 18 Jan 2023 19:39:05 -0800
From:   Brad Larson <brad@...sando.io>
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,
        robh+dt@...nel.org, samuel@...lland.org, fancer.lancer@...il.com,
        skhan@...uxfoundation.org, suravee.suthikulpanit@....com,
        thomas.lendacky@....com, 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