Re: [PATCH 2/2] mips: ralink: make SOC_MT7621 select PINCTRL

From: Arınç ÜNAL
Date: Tue Feb 21 2023 - 05:55:05 EST


On 21.02.2023 13:21, Sergio Paracuellos wrote:
On Tue, Feb 21, 2023 at 11:09 AM Arınç ÜNAL <arinc.unal@xxxxxxxxxx> wrote:

On 21.02.2023 12:38, Sergio Paracuellos wrote:
Hi Arınç,

On Tue, Feb 21, 2023 at 10:24 AM <arinc9.unal@xxxxxxxxx> wrote:

From: Arınç ÜNAL <arinc.unal@xxxxxxxxxx>

Currently, out of every Ralink SoC, only the dt-binding of the MT7621 SoC
uses pinctrl. Because of this, PINCTRL is not selected at all. Make
SOC_MT7621 select PINCTRL.

Remove PINCTRL_MT7621, enabling it for the MT7621 SoC will be handled under
the PINCTRL_MT7621 option.

Signed-off-by: Arınç ÜNAL <arinc.unal@xxxxxxxxxx>
---
arch/mips/ralink/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig
index 06031796c87b..83e61e147b90 100644
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -54,7 +54,7 @@ choice
select HAVE_PCI
select PCI_DRIVERS_GENERIC
select SOC_BUS
- select PINCTRL_MT7621
+ select PINCTRL

help
The MT7621 system-on-a-chip includes an 880 MHz MIPS1004Kc
--
2.37.2


Which git tree are you working against? CONFIG_SOC_MT7621 is not
selecting PINCTRL_MT7621 at all in v6.2 [0]. I think it should select

mips/linux.git mips-next tree.

https://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git/log/

I see :). Thanks!


'PINCTRL_MT7621' and the 'select PINCTRL' stuff added inside the
PINCTRL_RALINK option in [1].

I'm working on that, although not exactly the way you describe here, on
this branch of mine.

So, in which way do you get PINCTRL_MT7621 automatically selected for
this SoC now? I think looking into the Kconfig for ralink pinctrl [0]
all of them at the end need the missing PINCTRL option to be added and
all of them are currently selecting PINCTRL_RALINK . Hence just adding
the PINCTRL option inside PINCTRL_RALINK looks convenient.

PINCTRL_RALINK won't appear on the menuconfig unless PINCTRL is enabled. So this'd be pointless.

From what I see on other MIPS and ARM platforms, PINCTRL is supposed to be enabled at the platform option, like CONFIG_RALINK. However, the Ralink SoCs except MT7621, or rather the DTs for them, do not use the pinctrl driver so I only enable it for MT7621, and keep it optional for the remaining SoCs.

MediaTek pinctrl kconfig enables the pinctrl driver specific to the SoC by default, if the said SoC is enabled. I'm keeping this method when moving ralink pinctrl to mediatek with the series below.

So once the pinctrl driver is defined on the DTs for the remaining SoCs, we can just put PINCTRL under CONFIG_RALINK and everything will work fine.



https://github.com/arinc9/linux/commits/ralink-pinctrl

Wow! Tons of changes here ;-). Keep going!!

Thanks a lot, I've started to refactor everything Ralink. With this series, I finalise the work on pinctrl.

Arınç