On Thu, 19 Oct 2017 09:29:03 +0900 <yamada.masahiro@xxxxxxxxxxxxx> wrote: > 2017-10-18 19:23 GMT+09:00 Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>: > > On Mon, 16 Oct 2017 00:08:21 +0900 <yamada.masahiro@xxxxxxxxxxxxx> wrote: > > >> priv->rst = devm_reset_control_get_optional_shared(dev, NULL); > >> if (IS_ERR(priv->rst)) > >> return PTR_ERR(priv->rst); > > > > The clk and reset are optional in the driver. > > Referring to your suggested method, I'll fix the part of clk and reset. > > > > > Why is clk optional? Indeed. My check point was wrong. This clk property should be treated as "required". In v2, the clock enabling code moved to ndo_init(). Although probing the driver succeeds without clk, enabling the driver fails clearly. --- Best Regards, Kunihiko Hayashi -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html