Re: [PATCH 1/4] dt-bindings: clock: Add Siflower SF19A2890 clock manager

[Conor Dooley <conor@kernel.org>]

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On Wed, Nov 04, 2026 at 02:20:58AM -0500, Joseph Telaak via B4 Relay wrote:
> From: Joseph Telaak <joseph@telaak.dev>
> 
> The clock manager of the Siflower SF19A2890 holds the SoC's PLLs and
> the muxes and dividers that derive the bus, CPU and peripheral clocks
> from them. The peripherals' own gates and resets are in separate
> blocks.
> 
> The header is Chuanhong Guo's, from his SF19A2890 branch, without the
> count at its end.
> 
> Signed-off-by: Joseph Telaak <joseph@telaak.dev>

Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

> ---
>  .../bindings/clock/siflower,sf19a2890-clk.yaml     | 57 ++++++++++++++++++++++
>  include/dt-bindings/clock/siflower,sf19a2890-clk.h | 27 ++++++++++
>  2 files changed, 84 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/siflower,sf19a2890-clk.yaml b/Documentation/devicetree/bindings/clock/siflower,sf19a2890-clk.yaml
> new file mode 100644
> index 000000000..9b72f14c2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/siflower,sf19a2890-clk.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/siflower,sf19a2890-clk.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Siflower SF19A2890 clock manager
> +
> +maintainers:
> +  - Joseph Telaak <joseph@telaak.dev>
> +
> +description: |
> +  The clock manager of the Siflower SF19A2890 holds the SoC's three PLLs
> +  (CPU, DDR and common) and the clock muxes with dividers that derive the
> +  bus, CPU and peripheral clocks from them. The peripherals' own clock
> +  gates and resets are in separate peripheral clock and reset managers.
> +
> +  The clocks are defined in include/dt-bindings/clock/siflower,sf19a2890-clk.h.
> +
> +properties:
> +  compatible:
> +    const: siflower,sf19a2890-clk
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: 12 MHz oscillator
> +      - description: 40 MHz oscillator
> +
> +  clock-names:
> +    items:
> +      - const: osc12m
> +      - const: osc40m
> +
> +  "#clock-cells":
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - "#clock-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    clock-controller@19e01000 {
> +        compatible = "siflower,sf19a2890-clk";
> +        reg = <0x19e01000 0x800>;
> +        clocks = <&osc12m>, <&osc40m>;
> +        clock-names = "osc12m", "osc40m";
> +        #clock-cells = <1>;
> +    };
> diff --git a/include/dt-bindings/clock/siflower,sf19a2890-clk.h b/include/dt-bindings/clock/siflower,sf19a2890-clk.h
> new file mode 100644
> index 000000000..74b9d67ea
> --- /dev/null
> +++ b/include/dt-bindings/clock/siflower,sf19a2890-clk.h
> @@ -0,0 +1,27 @@
> +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
> +#ifndef __DT_BINDINGS_CLOCK_SIFLOWER_SF19A2890_CLK_H
> +#define __DT_BINDINGS_CLOCK_SIFLOWER_SF19A2890_CLK_H
> +
> +#define CLK_PLL_CPU		0
> +#define CLK_PLL_DDR		1
> +#define CLK_PLL_CMN		2
> +#define CLK_MUXDIV_BUS1		3
> +#define CLK_MUXDIV_BUS2		4
> +#define CLK_MUXDIV_BUS3		5
> +#define CLK_MUXDIV_CPU		6
> +#define CLK_MUXDIV_PBUS		7
> +#define CLK_MUXDIV_MEM_PHY	8
> +#define CLK_MUXDIV_UART		9
> +#define CLK_MUXDIV_ETH_REF	10
> +#define CLK_MUXDIV_ETH_BYP_REF	11
> +#define CLK_MUXDIV_ETH_TSU	12
> +#define CLK_MUXDIV_GMAC_BYP_REF	13
> +#define CLK_MUXDIV_M6250_0	14
> +#define CLK_MUXDIV_M6250_1	15
> +#define CLK_MUXDIV_WLAN24_PLF	16
> +#define CLK_MUXDIV_WLAN5_PLF	17
> +#define CLK_MUXDIV_USBPHY_REF	18
> +#define CLK_MUXDIV_TCLK		19
> +#define CLK_MUXDIV_NPU_PE_CLK	20
> +
> +#endif /* __DT_BINDINGS_CLOCK_SIFLOWER_SF19A2890_CLK_H */
> 
> -- 
> Git-155)
> 
> 

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