On Wed, Jun 15, 2022 at 12:42:27PM +0000, Conor.Dooley@xxxxxxxxxxxxx wrote: > On 15/06/2022 13:37, Mark Brown wrote: > >> But if spi->clk is NULL, this will return 0 from the probe > >> rather than returning an error? > >> If that's not what you meant, lmk > > Oh, hang on - what error conditions can clk_get() return 0 in? The > > documentation doesn't mention any... > If !CONFIG_HAVE_CLK, (without which it won't boot on the coreplex) > but I don't think I can be sure that CONFIG_HAVE_CLK will /always/ > be enabled for other uses of the FPGA. That's not an error, that's returning NULL as a dummy clock. The expectation is that the driver will proceed as though it has a clock.
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