Am Donnerstag, 8. September 2016, 22:27:13 CEST schrieb Randy Li:
> The only use for this is for solving a hardware design problem in
> usb of Rockchip RK3288.
>
> Signed-off-by: Randy Li <ayaka@xxxxxxxxxxx>
to me this looks good.
Although Kishon suggested earlier to have the init callback do the reset and
simply call it again in the reset-case, the whole refcounting done in phy_init
and phy_exit (phy->init_count) really shows that init and exit should be
called pairwise, so that extra reset callback seems justified, so from my phy-
noob-pov
Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
with one minor style nitpick below
> ---
> drivers/phy/phy-core.c | 14 ++++++++++++++
> include/linux/phy/phy.h | 3 +++
> 2 files changed, 17 insertions(+)
>
> diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
> index 8eca906..32e838d 100644
> --- a/drivers/phy/phy-core.c
> +++ b/drivers/phy/phy-core.c
> @@ -357,6 +357,20 @@ int phy_set_mode(struct phy *phy, enum phy_mode mode)
> }
> EXPORT_SYMBOL_GPL(phy_set_mode);
>
> +int phy_reset(struct phy *phy)
> +{
> + int ret;
I think a blank line between declarations and code is customary.
> + if (!phy || !phy->ops->reset)
> + return 0;
> +
> + mutex_lock(&phy->mutex);
> + ret = phy->ops->reset(phy);
> + mutex_unlock(&phy->mutex);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(phy_reset);
> +
> /**
> * _of_phy_get() - lookup and obtain a reference to a phy by phandle
> * @np: device_node for which to get the phy
Heiko
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