Re: [PATCH 1/5] cpufreq: loongson3: Make this drvier depend on MACH_LOONGSON64

[Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>]

Hello Huacai,
Just share a few inline comments/questions below:

On 8/18/2026 8:39 PM, Huacai Chen wrote:
> 32BIT Loongson machines don't have SMC and FreqCtrl registers, so make
> this drvier depend on MACH_LOONGSON64.

Typo --> driver? Likewise the subject.

> 
> Cc: stable@vger.kernel.org

Nit, it is better to add fixes tag?  For example:

ccf51454145b ("cpufreq: Add Loongson-3 CPUFreq driver support")

> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
> ---
>   drivers/cpufreq/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
> index db83f3365698..edc1299098d4 100644
> --- a/drivers/cpufreq/Kconfig
> +++ b/drivers/cpufreq/Kconfig
> @@ -288,6 +288,7 @@ endif
>   if LOONGARCH
>   config LOONGSON3_CPUFREQ
>   	tristate "Loongson3 CPUFreq Driver"
> +	depends on MACH_LOONGSON64

Small nit:

Please feel free to correct me.

There are two MACH_LOONGSON64 symbols in the tree:
   arch/loongarch/Kconfig: config MACH_LOONGSON64
                                  def_bool 64BIT

   arch/mips/Kconfig:      config MACH_LOONGSON64
                                  bool "Loongson 64-bit family of
                                  machines"
                                  select ...

The one that actually applies here is the LoongArch one, i.e. this is
really just "depends on 64BIT".  Since drivers/cpufreq/Kconfig is a
shared file that also contains an "if MIPS" block, please at least
is it better to mention it in the changelog which MACH_LOONGSON64 is
using, because the LoongArch one has no prompt and is therefore
invisible in menuconfig. Or just write "depends on 64BIT"?


>   	help
>   	  This option adds a CPUFreq driver for Loongson processors which
>   	  support software configurable cpu frequency.


-- 
Thx and BRs,
Zhongqiu Han