diff mbox series

[v6,02/13] dt-bindings: clock: Add cpg for the Renesas RZ/T2H SoC

Message ID 20250331122657.3390355-3-thierry.bultel.yh@bp.renesas.com (mailing list archive)
State New
Delegated to: Geert Uytterhoeven
Headers show
Series Add initial support for Renesas RZ/T2H SoC | expand

Commit Message

Thierry Bultel March 31, 2025, 12:26 p.m. UTC 
Document RZ/T2H (a.k.a r9a09g077) cpg-mssr (Clock Pulse Generator) binding.

Signed-off-by: Thierry Bultel <thierry.bultel.yh@bp.renesas.com>
---
Changes v5->v6:
  - Set clock minItem constraint
  - Moved additionalProperties after 'allOf' section
Changes v4->v5:
  - Set reg minItems and maxItems defaults at top level
Changes v3->v4:
  - Handle maxItems and clocks names properly in schema. 
---
 .../bindings/clock/renesas,cpg-mssr.yaml      | 57 +++++++++++++------
 .../clock/renesas,r9a09g077-cpg-mssr.h        | 49 ++++++++++++++++
 2 files changed, 90 insertions(+), 16 deletions(-)
 create mode 100644 include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h

Comments

Rob Herring (Arm) March 31, 2025, 11:59 p.m. UTC | #1 
On Mon, Mar 31, 2025 at 02:26:43PM +0200, Thierry Bultel wrote:
> Document RZ/T2H (a.k.a r9a09g077) cpg-mssr (Clock Pulse Generator) binding.
> 
> Signed-off-by: Thierry Bultel <thierry.bultel.yh@bp.renesas.com>
> ---
> Changes v5->v6:
>   - Set clock minItem constraint
>   - Moved additionalProperties after 'allOf' section
> Changes v4->v5:
>   - Set reg minItems and maxItems defaults at top level
> Changes v3->v4:
>   - Handle maxItems and clocks names properly in schema. 
> ---
>  .../bindings/clock/renesas,cpg-mssr.yaml      | 57 +++++++++++++------
>  .../clock/renesas,r9a09g077-cpg-mssr.h        | 49 ++++++++++++++++
>  2 files changed, 90 insertions(+), 16 deletions(-)
>  create mode 100644 include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> index 77ce3615c65a..dee4c44ef025 100644
> --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> @@ -52,9 +52,11 @@ properties:
>        - renesas,r8a779f0-cpg-mssr # R-Car S4-8
>        - renesas,r8a779g0-cpg-mssr # R-Car V4H
>        - renesas,r8a779h0-cpg-mssr # R-Car V4M
> +      - renesas,r9a09g077-cpg-mssr # RZ/T2H
>  
>    reg:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2

You need to define what each entry is. And do that here assuming the 
first entry is the same in either case.
Thierry Bultel April 1, 2025, 12:20 p.m. UTC | #2 
Hi Rob, 
thanks for your review,

> >
> > diff --git
> > a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> > b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> > index 77ce3615c65a..dee4c44ef025 100644
> > --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> > +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> > @@ -52,9 +52,11 @@ properties:
> >        - renesas,r8a779f0-cpg-mssr # R-Car S4-8
> >        - renesas,r8a779g0-cpg-mssr # R-Car V4H
> >        - renesas,r8a779h0-cpg-mssr # R-Car V4M
> > +      - renesas,r9a09g077-cpg-mssr # RZ/T2H
> >
> >    reg:
> > -    maxItems: 1
> > +    minItems: 1
> > +    maxItems: 2
> 
> You need to define what each entry is. And do that here assuming the first
> entry is the same in either case.

Would this be the right way ? (maxItems become implicit)


  reg:
    minItems: 1
    items:
      - description: base address of register block 0
      - description: base address of register block 1
    description: base addresses of clock controller. Some controllers
      (like r9a09g077) use two blocks instead of a single one).


Thanks !
Thierry
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
index 77ce3615c65a..dee4c44ef025 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
@@ -52,9 +52,11 @@  properties:
       - renesas,r8a779f0-cpg-mssr # R-Car S4-8
       - renesas,r8a779g0-cpg-mssr # R-Car V4H
       - renesas,r8a779h0-cpg-mssr # R-Car V4M
+      - renesas,r9a09g077-cpg-mssr # RZ/T2H
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   clocks:
     minItems: 1
@@ -63,11 +65,6 @@  properties:
   clock-names:
     minItems: 1
     maxItems: 2
-    items:
-      enum:
-        - extal     # All
-        - extalr    # Most R-Car Gen3 and RZ/G2
-        - usb_extal # Most R-Car Gen2 and RZ/G1
 
   '#clock-cells':
     description: |
@@ -92,16 +89,6 @@  properties:
       the datasheet.
     const: 1
 
-if:
-  not:
-    properties:
-      compatible:
-        items:
-          enum:
-            - renesas,r7s9210-cpg-mssr
-then:
-  required:
-    - '#reset-cells'
 
 required:
   - compatible
@@ -111,6 +98,44 @@  required:
   - '#clock-cells'
   - '#power-domain-cells'
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a09g077-cpg-mssr
+    then:
+      properties:
+        reg:
+          minItems: 2
+        clocks:
+          minItems: 2
+        clock-names:
+          items:
+            - const: extal
+            - const: loco
+    else:
+      properties:
+        reg:
+          maxItems: 1
+        clock-names:
+          items:
+            enum:
+              - extal     # All
+              - extalr    # Most R-Car Gen3 and RZ/G2
+              - usb_extal # Most R-Car Gen2 and RZ/G1
+
+  - if:
+      not:
+        properties:
+          compatible:
+            items:
+              enum:
+                - renesas,r7s9210-cpg-mssr
+    then:
+      required:
+        - '#reset-cells'
+
 additionalProperties: false
 
 examples:
diff --git a/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h b/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h
new file mode 100644
index 000000000000..27c9cdcdf7c8
--- /dev/null
+++ b/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h
@@ -0,0 +1,49 @@ 
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_RENESAS_R9A09G077_CPG_H__
+#define __DT_BINDINGS_CLOCK_RENESAS_R9A09G077_CPG_H__
+
+#include <dt-bindings/clock/renesas-cpg-mssr.h>
+
+/* R9A09G077 CPG Core Clocks */
+#define R9A09G077_CA55C0		0
+#define R9A09G077_CA55C1		1
+#define R9A09G077_CA55C2		2
+#define R9A09G077_CA55C3		3
+#define R9A09G077_SDHIHS		4
+#define R9A09G077_CLK_PLL1_ETH_PHY	5
+#define R9A09G077_CLK_OSC_ETH_PHY	6
+#define R9A09G077_CLK_ETHPHY		7
+#define R9A09G077_PCLKAH		8
+#define R9A09G077_PCLKAM		9
+#define R9A09G077_PCLKAL		10
+#define R9A09G077_CLK_SEL_ETH_PHY	11
+#define R9A09G077_DFI			12
+#define R9A09G077_PCLKH			13
+#define R9A09G077_PCLKM			14
+#define R9A09G077_PCLKL			15
+#define R9A09G077_PCLKGPTL		16
+#define R9A09G077_PCLKSHOST		17
+#define R9A09G077_PCLKRTC		18
+#define R9A09G077_USB			19
+#define R9A09G077_SPI0			20
+#define R9A09G077_SPI1			21
+#define R9A09G077_SPI2			22
+#define R9A09G077_SPI3			23
+#define R9A09G077_ETCLKA		24
+#define R9A09G077_ETCLKB		25
+#define R9A09G077_ETCLKC		26
+#define R9A09G077_ETCLKD		27
+#define R9A09G077_ETCLKE		28
+#define R9A09G077_ETHCLKE		29
+#define R9A09G077_ETHCLK_EXTAL		30
+#define R9A09G077_ETH_REFCLK		31
+#define R9A09G077_LCDC_CLKA		32
+#define R9A09G077_LCDC_CLKP		33
+#define R9A09G077_CA55			34
+#define R9A09G077_LCDC_CLKD		35
+
+#endif /* __DT_BINDINGS_CLOCK_RENESAS_R9A09G077_CPG_H__ */