From 8487614a8a8a70d44957a11693dbefd8350f402c Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Wed, 2 Feb 2022 20:17:32 -0600
Subject: dt-bindings: rtc: sun6i: Add H616, R329, and D1 support

These new RTC variants all have a single alarm, like the R40 variant.

For the new SoCs, start requiring a complete list of input clocks. The
H616 has three required clocks. The R329 also has three required clocks
(but one is different), plus an optional crystal oscillator input. The
D1 RTC is identical to the one in the R329.

And since these new SoCs will have a well-defined output clock order as
well, they do not need the clock-output-names property.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220203021736.13434-3-samuel@sholland.org
---
 .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml      | 76 +++++++++++++++++++++-
 1 file changed, 73 insertions(+), 3 deletions(-)

(limited to 'Documentation')

diff --git a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
index a88d46ffb457..0b767fec39d8 100644
--- a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
@@ -24,9 +24,14 @@ properties:
           - allwinner,sun8i-v3-rtc
           - allwinner,sun50i-h5-rtc
           - allwinner,sun50i-h6-rtc
+          - allwinner,sun50i-h616-rtc
+          - allwinner,sun50i-r329-rtc
       - items:
           - const: allwinner,sun50i-a64-rtc
           - const: allwinner,sun8i-h3-rtc
+      - items:
+          - const: allwinner,sun20i-d1-rtc
+          - const: allwinner,sun50i-r329-rtc
 
   reg:
     maxItems: 1
@@ -38,7 +43,12 @@ properties:
       - description: RTC Alarm 1
 
   clocks:
-    maxItems: 1
+    minItems: 1
+    maxItems: 4
+
+  clock-names:
+    minItems: 1
+    maxItems: 4
 
   clock-output-names:
     minItems: 1
@@ -98,7 +108,68 @@ allOf:
       properties:
         compatible:
           contains:
-            const: allwinner,sun8i-r40-rtc
+            const: allwinner,sun50i-h616-rtc
+
+    then:
+      properties:
+        clocks:
+          minItems: 3
+          maxItems: 3
+          items:
+            - description: Bus clock for register access
+            - description: 24 MHz oscillator
+            - description: 32 kHz clock from the CCU
+
+        clock-names:
+          minItems: 3
+          maxItems: 3
+          items:
+            - const: bus
+            - const: hosc
+            - const: pll-32k
+
+      required:
+        - clocks
+        - clock-names
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: allwinner,sun50i-r329-rtc
+
+    then:
+      properties:
+        clocks:
+          minItems: 3
+          maxItems: 4
+          items:
+            - description: Bus clock for register access
+            - description: 24 MHz oscillator
+            - description: AHB parent for internal SPI clock
+            - description: External 32768 Hz oscillator
+
+        clock-names:
+          minItems: 3
+          maxItems: 4
+          items:
+            - const: bus
+            - const: hosc
+            - const: ahb
+            - const: ext-osc32k
+
+      required:
+        - clocks
+        - clock-names
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - allwinner,sun8i-r40-rtc
+              - allwinner,sun50i-h616-rtc
+              - allwinner,sun50i-r329-rtc
 
     then:
       properties:
@@ -117,7 +188,6 @@ required:
   - compatible
   - reg
   - interrupts
-  - clock-output-names
 
 additionalProperties: false
 
-- 
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