On Thu, 15 May 2025 at 16:18, Thierry Bultel
<thierry.bultel.yh@xxxxxxxxxxxxxx> wrote:
> Document RZ/T2H (a.k.a r9a09g077) cpg-mssr (Clock Pulse Generator) binding.
>
> Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
> Signed-off-by: Thierry Bultel <thierry.bultel.yh@xxxxxxxxxxxxxx>
> ---
> Changes v8->v9:
> - keep clock names in generic section because T2H is a subset
> - removed R9A09G077_CLK_BSC, to only keep R9A09G077_CLK_CKIO
> - removed R9A09G077_MSTP* macros and module clocks definitions
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
i.e. will queue in a branch shared by renesas-clk for v6.17 and
renesas-devel for v6.17.
> Changes v7->v8:
> - extra parenthesis
> - added loco
> - renesas-cpg-mssr.h: removed unused clocks, added a macro for mstp
> Changes v6->v7:
> - Add description for reg property
> 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 | 46 ++++++++++++++-----
> .../clock/renesas,r9a09g077-cpg-mssr.h | 28 +++++++++++
> 2 files changed, 63 insertions(+), 11 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..708ab6bd7d44 100644
> --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.yaml
> @@ -52,9 +52,15 @@ 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
> + 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.
>
> clocks:
> minItems: 1
> @@ -92,16 +98,6 @@ properties:
> the datasheet.
> const: 1
>
> -if:
> - not:
> - properties:
> - compatible:
> - items:
> - enum:
> - - renesas,r7s9210-cpg-mssr
> -then:
> - required:
> - - '#reset-cells'
>
> required:
> - compatible
> @@ -111,6 +107,34 @@ required:
> - '#clock-cells'
> - '#power-domain-cells'
>
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: renesas,r9a09g077-cpg-mssr
> + then:
> + properties:
> + reg:
> + minItems: 2
> + clock-names:
> + items:
> + - const: extal
> + else:
> + properties:
> + reg:
> + maxItems: 1
> + - 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..29155fb0401e
> --- /dev/null
> +++ b/include/dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h
> @@ -0,0 +1,27 @@
> +/* 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_CLK_CA55C0 0
> +#define R9A09G077_CLK_CA55C1 1
> +#define R9A09G077_CLK_CA55C2 2
> +#define R9A09G077_CLK_CA55C3 3
> +#define R9A09G077_CLK_CA55S 4
> +#define R9A09G077_CLK_CR52_CPU0 5
> +#define R9A09G077_CLK_CR52_CPU1 6
> +#define R9A09G077_CLK_CKIO 7
> +#define R9A09G077_CLK_PCLKAH 8
> +#define R9A09G077_CLK_PCLKAM 9
> +#define R9A09G077_CLK_PCLKAL 10
> +#define R9A09G077_CLK_PCLKGPTL 11
> +#define R9A09G077_CLK_PCLKH 12
> +#define R9A09G077_CLK_PCLKM 13
> +
> +#endif /* __DT_BINDINGS_CLOCK_RENESAS_R9A09G077_CPG_H__ */
> --
> 2.43.0
>
--
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
