Re: [PATCH v2 2/2] pinctrl: Propagate firmware node from a parent device
From: Colin Foster <colin.foster@in-advantage.com>
Date: 2021-12-14 16:38:36
Also in:
linux-arm-kernel, linux-arm-msm, linux-mediatek, linux-renesas-soc, lkml
On Tue, Dec 14, 2021 at 02:58:55PM +0200, Andy Shevchenko wrote:
When creating MFD platform devices the firmware node is left unset. This, in particular, prevents GPIO library to use it for different purposes. Propagate firmware node from the parent device and let GPIO library do the right thing.
I came across the same thing this week. By populating the of_compatible field of the mfd_cell, the child device will have the appropriate firmware node populated. Unfortunately that currently means that I'll have to put every device type in the MFD instead of in an of_match_table in the child driver itself. Figuring that out is one of the next things on my list.