Re: [PATCH 0/7] clk: at91: sckc: improve error path

Alexandre Belloni
2019-06-21T09:33:09Z

On 20/06/2019 10:30:42+0000, Claudiu.Beznea@microchip.com wrote:
> Hi,
>
> On 18.06.2019 12:55, Alexandre Belloni wrote:
> > On 13/06/2019 15:37:06+0000, Claudiu.Beznea@microchip.com wrote:
> >> From: Claudiu Beznea <claudiu.beznea@microchip.com>
> >>
> >> Hi,
> >>
> >> This series tries to improve error path for slow clock registrations
> >> by adding functions to free resources and using them on failures.
> >>
> >
> > Does the platform even boot when the slow clock is not available?
> >
> > The TCB clocksource would fail at:
> >
> > tc.slow_clk = of_clk_get_by_name(node->parent, "slow_clk");
> > if (IS_ERR(tc.slow_clk))
> > return PTR_ERR(tc.slow_clk);
> >
>
> In case of using TC as clocksource, yes, the platform wouldn't boot if slow
> clock is not available, because, anyway the TC needs it. PIT may work
> without it (if slow clock is not used to drive the PIT).
>
> For sure there are other IPs (which may be or are driven by slow clock)
> which may not work if slow clock is driven them.
>
> Anyway, please let me know if you feel this series has no meaning.
>

Well, I'm not sure it is worth it but at the same time, it is not adding
many lines and you already developed it...

--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering