[PATCH 1/2] dt-bindings: mmc: mtk-sd: Add eMMC for AN7581

[Christian Marangi <ansuelsmth@gmail.com>]

Document eMMC compatible for AN7581. This eMMC controller doesn't have
regulator exposed to the system and have a single clock only for source
clock and only default pintctrl.

Rework the schema to permit these new requirements and make supply
optional only for airoha,an7581-mmc compatible.

Also provide an example for airoha,an7581-mmc.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
This depends on patch merged in clk-next 
bfe257f9780d8f77045a7da6ec959ee0659d2f98

 .../devicetree/bindings/mmc/mtk-sd.yaml       | 64 +++++++++++++++++--
 1 file changed, 58 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
index f86ebd81f5a5..6dad5455b369 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
@@ -27,6 +27,7 @@ properties:
           - mediatek,mt8183-mmc
           - mediatek,mt8196-mmc
           - mediatek,mt8516-mmc
+          - airoha,an7581-mmc
       - items:
           - const: mediatek,mt7623-mmc
           - const: mediatek,mt2701-mmc
@@ -48,11 +49,11 @@ properties:
   clocks:
     description:
       Should contain phandle for the clock feeding the MMC controller.
-    minItems: 2
+    minItems: 1
     maxItems: 7
 
   clock-names:
-    minItems: 2
+    minItems: 1
     maxItems: 7
 
   interrupts:
@@ -72,7 +73,7 @@ properties:
       Should at least contain default and state_uhs. To support SDIO in-band wakeup, dat1 pin
       will be switched between GPIO mode and SDIO DAT1 mode, state_eint is mandatory in this
       scenario.
-    minItems: 2
+    minItems: 1
     items:
       - const: default
       - const: state_uhs
@@ -170,9 +171,6 @@ required:
   - clock-names
   - pinctrl-names
   - pinctrl-0
-  - pinctrl-1
-  - vmmc-supply
-  - vqmmc-supply
 
 allOf:
   - $ref: mmc-controller.yaml#
@@ -335,6 +333,40 @@ allOf:
             - const: axi_cg
             - const: ahb_cg
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: airoha,an7581-mmc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: source clock
+
+        clock-names:
+          items:
+            - const: source
+
+        pinctrl-names:
+          items:
+            - const: default
+    else:
+      properties:
+        clocks:
+          minItems: 2
+
+        clock-names:
+          minItems: 2
+
+        pinctrl-names:
+          minItems: 2
+
+      required:
+        - pinctrl-1
+        - vmmc-supply
+        - vqmmc-supply
+
 unevaluatedProperties: false
 
 examples:
@@ -389,5 +421,25 @@ examples:
         vqmmc-supply = <&mt6397_vgp3_reg>;
         mmc-pwrseq = <&wifi_pwrseq>;
     };
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/en7523-clk.h>
+    mmc@1fa0e000 {
+        compatible = "airoha,an7581-mmc";
+        reg = <0x1fa0e000 0x1000>,
+              <0x1fa0c000 0x60>;
+        clocks = <&scuclk EN7581_CLK_EMMC>;
+        clock-names = "source";
+        interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&mmc_pins>;
+        bus-width = <4>;
+        max-frequency = <52000000>;
+        disable-wp;
+        cap-mmc-highspeed;
+        non-removable;
+
+    };
 
 ...
-- 
2.45.2