[PATCH 1/2] mmc: cqe: Add CQE DT support for cadence controller

[rohan1sj via B4 Relay]

From: rohan1sj <rohan1sj@xxxxxxxxxxx>

Add DT config required to support CQE as present in
cadence eMMC host controller

Signed-off-by: rohan1sj <rohan1sj@xxxxxxxxxxx>
---
 .../devicetree/bindings/mmc/cdns,sdhci.yaml        | 32 +++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
index ac75d694611a..c0d8aefe20c2 100644
--- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
@@ -24,6 +24,10 @@ properties:
     minItems: 1
     maxItems: 2
 
+  reg-names:
+    minItems: 1
+    maxItems: 2
+
   interrupts:
     maxItems: 1
 
@@ -139,7 +143,19 @@ allOf:
     else:
       properties:
         reg:
-          maxItems: 1
+          oneOf:
+            - items:
+                - description: Host controller registers
+            - items:
+                - description: Host controller registers
+                - description: CQE (Command Queue Engine) registers
+        reg-names:
+          oneOf:
+            - items:
+                - const: sdhci
+            - items:
+                - const: sdhci
+                - const: cqhci
 
 unevaluatedProperties: false
 
@@ -156,3 +172,17 @@ examples:
         mmc-hs400-1_8v;
         cdns,phy-dll-delay-sdclk = <0>;
     };
+
+  - |
+    emmc_cqe: mmc@5b000000 {
+        compatible = "socionext,uniphier-sd4hc", "cdns,sd4hc";
+        reg = <0x5b000000 0x400>, <0x5b000400 0x060>;
+        reg-names = "sdhci", "cqhci";
+        interrupts = <0 79 4>;
+        clocks = <&clk 4>;
+        bus-width = <8>;
+        mmc-ddr-1_8v;
+        mmc-hs200-1_8v;
+        mmc-hs400-1_8v;
+        cdns,phy-dll-delay-sdclk = <0>;
+    };

-- 
2.34.1