Re: [PATCH V3 2/2] nvmem: add generic driver for devices with MMIO access

[Randy Dunlap]

Hi,

On 2/20/23 09:49, Rafał Miłecki wrote:
> +static int mmio_nvmem_write(void *context, unsigned int offset, void *val, size_t bytes)
> +{
> +	struct mmio_nvmem *priv = context;
> +
> +	switch (priv->io_width) {
> +	case 1:
> +	case 2:
> +	case 4:
> +		return -EOPNOTSUPP;

I'm just curious: (since read supports those cases)

what size writes are typically used here?
And what value for priv->io_width?



Thanks.

> +	default:
> +		memcpy_toio(priv->base + offset, val, bytes);
> +	}
> +
> +	return 0;
> +}

-- 
~Randy