Re: [PATCH v5 29/44] ARM: da8xx: add new USB PHY clock init using common clock framework

[David Lechner]

On 01/18/2018 09:14 AM, Sekhar Nori wrote:
> On Monday 08 January 2018 07:47 AM, David Lechner wrote:
> > +int __init da8xx_register_usb20_phy_clk(bool use_usb_refclkin)
> > +{
> > +	struct regmap *cfgchip;
> > +	struct clk *usb0_psc_clk, *clk;
> > +	struct clk_hw *parent;
> > +
> > +	cfgchip = syscon_regmap_lookup_by_compatible("ti,da830-cfgchip");
>
> Am I right in understanding that this API is only called for non-DT
> boot? If yes, do we really need the lookup by compatible?

This code is used in DT boot until [PATCH v5 43/44] "ARM: da8xx-dt:
switch to device tree clocks". So, yes it is needed temporarily to
prevent breaking USB.