Re: [PATCH v12 5/7] nvmem: core: Rework layouts to become regular devices

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On Thu, Oct 05, 2023 at 05:59:05PM +0200, Miquel Raynal wrote:
> --- a/drivers/nvmem/internals.h
> +++ b/drivers/nvmem/internals.h
> @@ -28,8 +28,30 @@ struct nvmem_device {
>  	nvmem_reg_read_t	reg_read;
>  	nvmem_reg_write_t	reg_write;
>  	struct gpio_desc	*wp_gpio;
> +	struct device		*layout_dev;
>  	struct nvmem_layout	*layout;
>  	void *priv;
>  };

Wait, is this now 2 struct device in the same structure?  Which one is
the "real" owner of this structure?  Why is a pointer to layout_dev
needed here as a "struct device" and not a real "struct
nvmem_layout_device" or whatever it's called?

>  struct nvmem_layout {
> -	const char *name;
> -	const struct of_device_id *of_match_table;
> +	struct device *dev;

Shouldn't this be a "real" struct device and not just a pointer?  If
not, what does this point to?  Who owns the reference to it?

thanks,

greg k-h




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