diff mbox series

[v3,2/6] dt-bindings: rtc: sun6i: Add H616, R329, and D1 support

Message ID 20220203021736.13434-3-samuel@sholland.org
State Accepted
Commit 8487614a8a8a70d44957a11693dbefd8350f402c
Headers show
Series clk: sunxi-ng: Add a RTC CCU driver | expand

Commit Message

Samuel Holland Feb. 3, 2022, 2:17 a.m. UTC 
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>
---

Changes in v3:
 - Add/fix several maxItems attributes for clocks and clock-items

Changes in v2:
 - Properly update the DT binding clocks and clock-names properties.

 .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 76 ++++++++++++++++++-
 include/dt-bindings/clock/sun6i-rtc.h         | 10 +++
 2 files changed, 83 insertions(+), 3 deletions(-)
 create mode 100644 include/dt-bindings/clock/sun6i-rtc.h

Comments

Rob Herring (Arm) Feb. 7, 2022, 9:45 p.m. UTC | #1 
On Wed, 02 Feb 2022 20:17:32 -0600, Samuel Holland wrote:
> 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>
> ---
> 
> Changes in v3:
>  - Add/fix several maxItems attributes for clocks and clock-items
> 
> Changes in v2:
>  - Properly update the DT binding clocks and clock-names properties.
> 
>  .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 76 ++++++++++++++++++-
>  include/dt-bindings/clock/sun6i-rtc.h         | 10 +++
>  2 files changed, 83 insertions(+), 3 deletions(-)
>  create mode 100644 include/dt-bindings/clock/sun6i-rtc.h
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

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
 
diff --git a/include/dt-bindings/clock/sun6i-rtc.h b/include/dt-bindings/clock/sun6i-rtc.h
new file mode 100644
index 000000000000..c845493e4d37
--- /dev/null
+++ b/include/dt-bindings/clock/sun6i-rtc.h
@@ -0,0 +1,10 @@ 
+/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
+
+#ifndef _DT_BINDINGS_CLK_SUN6I_RTC_H_
+#define _DT_BINDINGS_CLK_SUN6I_RTC_H_
+
+#define CLK_OSC32K		0
+#define CLK_OSC32K_FANOUT	1
+#define CLK_IOSC		2
+
+#endif /* _DT_BINDINGS_CLK_SUN6I_RTC_H_ */