On 02/24/2018 01:16 AM, Andy Shevchenko wrote:
On Fri, Feb 23, 2018 at 4:19 PM, Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> wrote:On 2018/2/23 21:27, Andy Shevchenko wrote:
On Fri, Feb 23, 2018 at 8:41 AM, Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
wrote:
'clock-freq-min-max' property had already deprecated.
Remove the 'clock-freq-min-max' property that is kept to maintain
the compatibility.
Removing a property without telling the user what to expect is a bad
idea and ABI breakage.
What's the general process to remove a property?
I guess we should do:
1) deprecate it in the first place and remove it from all upstream DT
2) wait some long enough days for expecting the stale of all old DTB
containing that property
3) remove the functionality of the deprecated property from the driver
but still leave some warning there
4) remove the left warning finally
I don't know. Perhaps Rob can shed a light here.
But I would really OK with removal of some of such properties from
some drivers where it's more burden to keep them.
This property had deprecated about 8months ago.
I think that it was enough to keep this property for maintaining the
compatibility.
I didn't remove this property without any alternative.
Best Regards,
Jaehoon Chung
And for the ABI breakage, we should add something in Documentation/ABI
/obsolete or Documentation/ABI/removed ?