From: Greg KH <gregkh@linuxfoundation.org>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: "Biju Das" <biju.das.jz@bp.renesas.com>,
linux-gpio@vger.kernel.org,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Prabhakar Mahadev Lad" <prabhakar.mahadev-lad.rj@bp.renesas.com>,
linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH v6 03/13] pinctrl: Add sysfs support
Date: Tue, 7 Mar 2023 15:46:42 +0100 [thread overview]
Message-ID: <ZAdOUtNqM6e6Z57S@kroah.com> (raw)
In-Reply-To: <CACRpkdb-gyn29ns3tGXXnrGgySNP7R90h0M7fan=zeNMU7-QKg@mail.gmail.com>
On Tue, Mar 07, 2023 at 02:41:16PM +0100, Linus Walleij wrote:
> On Mon, Mar 6, 2023 at 10:00 AM Biju Das <biju.das.jz@bp.renesas.com> wrote:
>
> > Add a simple sysfs interface to the generic pinctrl framework
> > for configuring pins for output disable operation.
> >
> > /sys/class/pinctrl/
> > `-- output-disable/
> > |-- configure (w/o) ask the kernel to configure a pin group
> > for output disable operation.
> >
> > echo "<group-name function-name 0 1>" > configure
> >
> > The existing "pinmux-functions" debugfs file lists the pin functions
> > registered for the pin controller. For example:
> >
> > function 0: usb0, groups = [ usb0 ]
> > function 1: usb1, groups = [ usb1 ]
> > function 2: gpt4-pins, groups = [ gpt4-pins ]
> > function 3: scif0, groups = [ scif0 ]
> > function 4: scif2, groups = [ scif2 ]
> > function 5: spi1, groups = [ spi1 ]
> >
> > To configure gpt4-pins for output disable activation by user:
> >
> > echo "gpt4-pins gpt4-pins 0 1" > configure
That is not what sysfs is for (multiple values per file.) Why not use
configfs for this as that is exactly what this is designed for?
thanks,
greg k-h
next prev parent reply other threads:[~2023-03-07 15:00 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-06 9:00 [PATCH v6 00/13] Add pinctrl sysfs and RZ/G2L POEG support Biju Das
2023-03-06 9:00 ` [PATCH v6 01/13] pinctrl: core: Add pinctrl_get_device() Biju Das
2023-03-06 23:33 ` andy.shevchenko
2023-03-07 8:13 ` Biju Das
2023-03-09 12:54 ` Andy Shevchenko
2023-03-09 13:26 ` Biju Das
2023-03-09 13:44 ` Andy Shevchenko
2023-03-09 14:19 ` Biju Das
2023-03-13 20:42 ` Biju Das
2023-03-13 22:05 ` Linus Walleij
2023-03-14 8:27 ` Biju Das
2023-03-14 8:42 ` Linus Walleij
2023-03-28 7:08 ` Biju Das
2023-03-14 9:33 ` Geert Uytterhoeven
2023-03-14 11:33 ` Biju Das
2023-03-15 8:00 ` Geert Uytterhoeven
2023-03-09 13:05 ` Linus Walleij
2023-03-09 13:18 ` Biju Das
2023-03-06 9:00 ` [PATCH v6 02/13] pinctrl: Add poutdisops variable to struct pinctrl_desc Biju Das
2023-03-06 9:00 ` [PATCH v6 03/13] pinctrl: Add sysfs support Biju Das
2023-03-06 23:38 ` andy.shevchenko
2023-03-07 8:54 ` Biju Das
2023-03-07 13:41 ` Linus Walleij
2023-03-07 14:43 ` Biju Das
2023-03-07 15:15 ` Greg KH
2023-03-28 7:07 ` Biju Das
2023-03-07 14:46 ` Greg KH [this message]
2023-03-06 9:00 ` [PATCH v6 04/13] pinctrl: renesas: rzg2l: Add pin output disable support Biju Das
2023-03-06 9:00 ` [PATCH v6 05/13] soc: renesas: Kconfig: Enable pin output disable for RZ/G2L SoC Biju Das
2023-03-06 9:00 ` [PATCH v6 06/13] drivers: pinctrl: renesas: Add RZ/G2L POEG driver support Biju Das
2023-03-06 23:35 ` andy.shevchenko
2023-03-07 8:53 ` Biju Das
2023-03-07 9:58 ` Andy Shevchenko
2023-03-07 10:10 ` Biju Das
2023-03-07 12:30 ` Andy Shevchenko
2023-03-07 12:39 ` Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 07/13] pwm: rzg2l-gpt: Add support for output disable request from gpt Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 08/13] pinctrl: renesas: rzg2l-poeg: Add support for GPT Output-Disable Request Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 09/13] pwm: rzg2l-gpt: Add support for output disable when both output low Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 10/13] pinctrl: renesas: rzg2l-poeg: output-disable request from GPT when both outputs are low Biju Das
2023-03-06 23:39 ` andy.shevchenko
2023-03-07 8:57 ` Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 11/13] pwm: rzg2l-gpt: Add support for output disable on dead time error Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 12/13] pinctrl: renesas: rzg2l-poeg: output-disable request from GPT " Biju Das
2023-03-06 9:00 ` [DO NOT APPLY PATCH v6 13/13] tools/poeg: Add test app for poeg Biju Das
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