Hi Eugeniy
On 02/06/2018 03:12 PM, Eugeniy Paltsev wrote:
> After commit ba1f966725223 "net: designware: add clock support"
> we got NET broken on axs101 and axs103 platforms.
>
> Some clock don't support gating so their clock drivers don't
> implement .enable/.disable callbacks. In such case clk_enable
> returns -ENOSYS.
> Also some clock drivers implement .enable/.disable callbacks not for all
> clock IDs and return -ENOSYS (or -ENOTSUPP) for others.
>
> If we have such clock in 'clocks' list of designware ethernet controller
> node we fail to probe designware ethernet.
>
> Fix it.
>
> Signed-off-by: Eugeniy Paltsev <eugeniy.palt...@synopsys.com>
> ---
> drivers/net/designware.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/designware.c b/drivers/net/designware.c
> index 6d53071..43670a7 100644
> --- a/drivers/net/designware.c
> +++ b/drivers/net/designware.c
> @@ -684,7 +684,7 @@ int designware_eth_probe(struct udevice *dev)
> break;
>
> err = clk_enable(&priv->clocks[i]);
> - if (err) {
> + if (err && err != -ENOSYS && err != -ENOTSUPP) {
> pr_err("failed to enable clock %d\n", i);
> clk_free(&priv->clocks[i]);
> goto clk_err;
>
Reviewed-by: Patrice Chotard <patrice.chot...@st.com>
Thanks
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