Hello Lucas,
On 16.01.22 22:32, Lucas Stach wrote:
> For CLK_OF_DECLARE clocks there is no driver that is bound to the device,
> so the lookup fails before even trying to find the provider, breaking
> the parent_ready() logic used when initializing the declared providers.
>
> Ignore the return code from of_device_ensure_probed to allow the lookup
> to proceed as usual. If of_device_ensure_probed the lookup will also fail,
> as no provider will be found.
This seems to be an alternate fix for the issue addressed by:
bd516e38dd14 ("clk: handle CLK_OF_DECLARE in deep probe")
What do you think?
>
> Signed-off-by: Lucas Stach <[email protected]>
> ---
> drivers/clk/clk.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index 189c9c62df5c..a1d1d7f1a467 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -643,11 +643,9 @@ struct clk *of_clk_get_from_provider(struct
> of_phandle_args *clkspec)
> {
> struct of_clk_provider *provider;
> struct clk *clk = ERR_PTR(-EPROBE_DEFER);
> - int ret;
>
> - ret = of_device_ensure_probed(clkspec->np);
> - if (ret)
> - return ERR_PTR(ret);
> + /* Ignore error, as CLK_OF_DECLARE clocks have no proper driver. */
> + of_device_ensure_probed(clkspec->np);
>
> /* Check if we have such a provider in our array */
> list_for_each_entry(provider, &of_clk_providers, link) {
>
--
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