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References: <20240118152213.2644269-1-hugo@hugovil.com> <20240118152213.2644269-9-hugo@hugovil.com>
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From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Thu, 18 Jan 2024 17:30:16 +0200
Message-ID: <CAHp75Vf7j6_xPceGuDWB5Mno2eJreyyD8B4i4GyyiMyKZPiwLA@mail.gmail.com>
Subject: Re: [PATCH v2 08/17] serial: max310x: use separate regmap name for
 each port
To: Hugo Villeneuve <hugo@hugovil.com>
Cc: gregkh@linuxfoundation.org, jirislaby@kernel.org, 
	cosmin.tanislav@analog.com, shc_work@mail.ru, linux-kernel@vger.kernel.org, 
	linux-serial@vger.kernel.org, Hugo Villeneuve <hvilleneuve@dimonoff.com>, 
	=?UTF-8?B?SmFuIEt1bmRyw6F0?= <jan.kundrat@cesnet.cz>
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On Thu, Jan 18, 2024 at 5:22=E2=80=AFPM Hugo Villeneuve <hugo@hugovil.com> =
wrote:
>
> From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
>
> Use a separate regmap name for each port so they can each have their own
> debugfs entry, allowing to access each port registers independently.
>
> For example, a four channels/ports device like the MAX14830 will have fou=
r
> entries in its regmap debugfs:
>
> $ find /sys/kernel/debug/regmap -type d | grep spi0.0

Just a side note for the future. The above is an example of "Useless
use of grep".
`find` has a `-name` parameter for such, using `find ...-name
'spi0.0*'` makes the grep unnecessary.

> /sys/kernel/debug/regmap/spi0.0-port0
> /sys/kernel/debug/regmap/spi0.0-port1
> /sys/kernel/debug/regmap/spi0.0-port2
> /sys/kernel/debug/regmap/spi0.0-port3

--=20
With Best Regards,
Andy Shevchenko