Re: [PATCH v4 4/6] bus: ti-sysc: Add support for software reset

[Tony Lindgren <tony@atomide.com>]

* Faiz Abbas <faiz_abbas@ti.com> [180705 14:24]:
> +static int sysc_reset(struct sysc *ddata)
> +{
> +	int offset = ddata->offsets[SYSC_SYSCONFIG];
> +	int val = sysc_read(ddata, offset);

Can you please just warn and return early for now if no
syss_mask is specified? Otherwise we'll have mysterious
errors if somebody leaves out "ti,hwmods" for module types
we do not yet support reset for.

> +	val |= (0x1 << ddata->cap->regbits->srst_shift);
> +	sysc_write(ddata, offset, val);
> +
> +	/* Poll on reset status */
> +	if (ddata->cfg.syss_mask) {
> +		offset = ddata->offsets[SYSC_SYSSTATUS];
> +
> +		return readl_poll_timeout(ddata->module_va + offset, val,
> +				(val & ddata->cfg.syss_mask) == 0x0,
> +				100, MAX_MODULE_SOFTRESET_WAIT);
> +	}
> +
> +	return 0;
> +}
> +

Otherwise looks good to me.

Thanks,

Tony