Re: [PATCH 2/2] clk: loongson2: add support for ls2k1000 compatible

[Krzysztof Kozlowski <krzk@kernel.org>]

On 22/03/2026 09:03, wjjsn wrote:
> From: wjjsn <2858482031@qq.com>
> 
> Add driver support for the "loongson,ls2k1000-clk" compatible
> and update the Loongson-2K1000 DTS to use it while retaining
> "loongson,ls2k-clk" as a fallback.
> 
> Signed-off-by: wjjsn <wjjsn@qq.com>
> ---
>  arch/loongarch/boot/dts/loongson-2k1000.dtsi | 2 +-

This is not driver.

>  drivers/clk/clk-loongson2.c                  | 1 +

Why are you combining these? Please read submitting patches in DT and
maintainer-soc profile to understand. Then read submitting patches and
split your code in logical chunks.

>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
> index ab6a55937e9e..61cdae438cb0 100644
> --- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi
> +++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
> @@ -156,7 +156,7 @@ pctrl: pinctrl@1fe00420 {
>  		};
>  
>  		clk: clock-controller@1fe00480 {
> -			compatible = "loongson,ls2k-clk";
> +			compatible = "loongson,ls2k1000-clk", "loongson,ls2k-clk";

You never tested your code. You have warning here.

>  			reg = <0x0 0x1fe00480 0x0 0x58>;
>  			#clock-cells = <1>;
>  			clocks = <&ref_100m>;
> diff --git a/drivers/clk/clk-loongson2.c b/drivers/clk/clk-loongson2.c
> index 9c4c6c99db3e..48d00578b26f 100644
> --- a/drivers/clk/clk-loongson2.c
> +++ b/drivers/clk/clk-loongson2.c
> @@ -441,6 +441,7 @@ static const struct of_device_id loongson2_clk_match_table[] = {
>  	{ .compatible = "loongson,ls2k0300-clk", .data = &ls2k0300_clks },
>  	{ .compatible = "loongson,ls2k0500-clk", .data = &ls2k0500_clks },
>  	{ .compatible = "loongson,ls2k-clk", .data = &ls2k1000_clks },
> +	{ .compatible = "loongson,ls2k1000-clk", .data = &ls2k1000_clks },

What is the point of this change? It's redundant.

>  	{ .compatible = "loongson,ls2k2000-clk", .data = &ls2k2000_clks },
>  	{ }
>  };


Best regards,
Krzysztof