Hi Marek,
On 19/07/19 5:51 PM, Marek Szyprowski wrote:
> Hi Kishon,
>
> On 2019-07-19 12:04, Kishon Vijay Abraham I wrote:
>> Hi Marek,
>>
>> On 19/07/19 3:22 PM, Marek Szyprowski wrote:
>>> Commit 36914111e682 ("drivers: phy: add calibrate method") added support
>>> for generic phy_calibrate() method, but it didn't explain in detail when
>>> such method is supposed to be called. Add some more documentation directly
>>> to the phy.h to make it clean that it is intended to be called after every
>>> host controller reset.
>>>
>>> Signed-off-by: Marek Szyprowski <[email protected]>
>>> ---
>>> include/linux/phy/phy.h | 12 ++++++++++++
>>> 1 file changed, 12 insertions(+)
>>>
>>> diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
>>> index 15032f145063..46775e8b0ed9 100644
>>> --- a/include/linux/phy/phy.h
>>> +++ b/include/linux/phy/phy.h
>>> @@ -101,6 +101,18 @@ struct phy_ops {
>>> int (*validate)(struct phy *phy, enum phy_mode mode, int submode,
>>> union phy_configure_opts *opts);
>>> int (*reset)(struct phy *phy);
>>> +
>>> + /**
>>> + * @calibrate:
>>> + *
>>> + * Optional.
>>> + *
>>> + * Used to calibrate phy, typically by adjusting some parameters
>>> + * in runtime, which are otherwise lost after host controller
>>> + * reset and cannot be set in phy_init() and phy_power_on().
>>> + *
>>> + * Returns: 0 if successful, an negative error code otherwise
>>> + */
>>> int (*calibrate)(struct phy *phy);
>> This should be added in drivers/phy/phy-core.c before phy_calibrate()?
>
> Okay. Do you want to keep it also in phy.h (like for validate and
> configure)?
No. Adding in phy.txt and before phy_calibrate() should suffice IMO.
Thanks
Kishon
