From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: "André Przywara" <andre.przywara-5wv7dgnIgG8@public.gmane.org>,
"ext Tony Lindgren"
<tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>,
"Icenowy Zheng" <icenowy-ymACFijhrKM@public.gmane.org>,
"Catalin Marinas" <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
"Chen-Yu Tsai" <wens-jdAy2FN1RRM@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: [PATCH 1/2] drivers: pinctrl: add driver for Allwinner H5 SoC
Date: Thu, 5 Jan 2017 23:42:10 +0100 [thread overview]
Message-ID: <20170105224210.wfinfucbpkkd44om@lukather> (raw)
In-Reply-To: <CACRpkdYQhfid3VRcaj=7as_+Zg=pX3Svp9FJ_W_Ft8nVuoZqKQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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On Fri, Dec 30, 2016 at 01:55:44PM +0100, Linus Walleij wrote:
> On Mon, Dec 26, 2016 at 3:33 PM, André Przywara <andre.przywara@arm.com> wrote:
>
> > So while this patch technically looks correct, I was wondering if we
> > should really explore the possibility of making the whole of sunxi
> > pinctrl DT controlled.
> > I brought this up a while ago, but people weren't overly enthusiastic
> > about it, though their argument weren't really convincing to me[1].
> >
> > So:
> > As this "driver" here is basically a table linking GPIO bit settings
> > (the actual mux value) to names and every pin we care about needs to be
> > enumerated in the DT anyway, why not just add something like:
> > allwinner,pinmux = <4>;
> > to each pin(group) in the DT and get rid of this "driver" file here
> > entirely?
>
> I'm open to that if you can use pinctrl-single which is in the kernel
> for this purpose only, and is used with both OMAPs and HiSilicon.
I'm not open to that, and I'm getting tired of discussing it over and
over again. Andre, if you want to be convinced again, please read the
last discussion we had on this topic.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: "André Przywara" <andre.przywara@arm.com>,
"ext Tony Lindgren" <tony@atomide.com>,
"Icenowy Zheng" <icenowy@aosc.xyz>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Chen-Yu Tsai" <wens@csie.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
linux-sunxi <linux-sunxi@googlegroups.com>
Subject: Re: [linux-sunxi] [PATCH 1/2] drivers: pinctrl: add driver for Allwinner H5 SoC
Date: Thu, 5 Jan 2017 23:42:10 +0100 [thread overview]
Message-ID: <20170105224210.wfinfucbpkkd44om@lukather> (raw)
In-Reply-To: <CACRpkdYQhfid3VRcaj=7as_+Zg=pX3Svp9FJ_W_Ft8nVuoZqKQ@mail.gmail.com>
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On Fri, Dec 30, 2016 at 01:55:44PM +0100, Linus Walleij wrote:
> On Mon, Dec 26, 2016 at 3:33 PM, André Przywara <andre.przywara@arm.com> wrote:
>
> > So while this patch technically looks correct, I was wondering if we
> > should really explore the possibility of making the whole of sunxi
> > pinctrl DT controlled.
> > I brought this up a while ago, but people weren't overly enthusiastic
> > about it, though their argument weren't really convincing to me[1].
> >
> > So:
> > As this "driver" here is basically a table linking GPIO bit settings
> > (the actual mux value) to names and every pin we care about needs to be
> > enumerated in the DT anyway, why not just add something like:
> > allwinner,pinmux = <4>;
> > to each pin(group) in the DT and get rid of this "driver" file here
> > entirely?
>
> I'm open to that if you can use pinctrl-single which is in the kernel
> for this purpose only, and is used with both OMAPs and HiSilicon.
I'm not open to that, and I'm getting tired of discussing it over and
over again. Andre, if you want to be convinced again, please read the
last discussion we had on this topic.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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WARNING: multiple messages have this Message-ID (diff)
From: maxime.ripard@free-electrons.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [linux-sunxi] [PATCH 1/2] drivers: pinctrl: add driver for Allwinner H5 SoC
Date: Thu, 5 Jan 2017 23:42:10 +0100 [thread overview]
Message-ID: <20170105224210.wfinfucbpkkd44om@lukather> (raw)
In-Reply-To: <CACRpkdYQhfid3VRcaj=7as_+Zg=pX3Svp9FJ_W_Ft8nVuoZqKQ@mail.gmail.com>
On Fri, Dec 30, 2016 at 01:55:44PM +0100, Linus Walleij wrote:
> On Mon, Dec 26, 2016 at 3:33 PM, Andr? Przywara <andre.przywara@arm.com> wrote:
>
> > So while this patch technically looks correct, I was wondering if we
> > should really explore the possibility of making the whole of sunxi
> > pinctrl DT controlled.
> > I brought this up a while ago, but people weren't overly enthusiastic
> > about it, though their argument weren't really convincing to me[1].
> >
> > So:
> > As this "driver" here is basically a table linking GPIO bit settings
> > (the actual mux value) to names and every pin we care about needs to be
> > enumerated in the DT anyway, why not just add something like:
> > allwinner,pinmux = <4>;
> > to each pin(group) in the DT and get rid of this "driver" file here
> > entirely?
>
> I'm open to that if you can use pinctrl-single which is in the kernel
> for this purpose only, and is used with both OMAPs and HiSilicon.
I'm not open to that, and I'm getting tired of discussing it over and
over again. Andre, if you want to be convinced again, please read the
last discussion we had on this topic.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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next prev parent reply other threads:[~2017-01-05 22:42 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-23 12:50 [PATCH 1/2] drivers: pinctrl: add driver for Allwinner H5 SoC Icenowy Zheng
2016-12-23 12:50 ` Icenowy Zheng
[not found] ` <20161223125001.1176-1-icenowy-ymACFijhrKM@public.gmane.org>
2016-12-23 12:50 ` [PATCH 2/2] arm64: allwinner: Kconfig: add essential pinctrl driver for H5 Icenowy Zheng
2016-12-23 12:50 ` Icenowy Zheng
2016-12-26 14:33 ` [PATCH 1/2] drivers: pinctrl: add driver for Allwinner H5 SoC André Przywara
2016-12-26 14:33 ` [linux-sunxi] " André Przywara
2016-12-26 14:33 ` André Przywara
[not found] ` <1280f095-ab03-93f8-14d2-99d13ba1ce55-5wv7dgnIgG8@public.gmane.org>
2016-12-30 12:55 ` Linus Walleij
2016-12-30 12:55 ` [linux-sunxi] " Linus Walleij
2016-12-30 12:55 ` Linus Walleij
2016-12-30 19:42 ` Tony Lindgren
2016-12-30 19:42 ` Tony Lindgren
2016-12-30 19:42 ` Tony Lindgren
[not found] ` <CACRpkdYQhfid3VRcaj=7as_+Zg=pX3Svp9FJ_W_Ft8nVuoZqKQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-01-05 22:42 ` Maxime Ripard [this message]
2017-01-05 22:42 ` Maxime Ripard
2017-01-05 22:42 ` Maxime Ripard
2017-01-09 0:16 ` André Przywara
2017-01-09 0:16 ` [linux-sunxi] " André Przywara
2017-01-09 0:16 ` André Przywara
2017-01-16 16:31 ` Maxime Ripard
2017-01-16 16:31 ` Maxime Ripard
2017-01-16 16:31 ` Maxime Ripard
2017-01-18 9:44 ` Andre Przywara
2017-01-18 9:44 ` [linux-sunxi] " Andre Przywara
2017-01-18 9:44 ` Andre Przywara
[not found] ` <87a535d3-1170-c388-ce7d-4921e69f4cab-5wv7dgnIgG8@public.gmane.org>
2017-01-19 9:23 ` Linus Walleij
2017-01-19 9:23 ` [linux-sunxi] " Linus Walleij
2017-01-19 9:23 ` Linus Walleij
[not found] ` <CACRpkdaTVY7Of5bKyk81xA2kUnZVMQ8LnWEJosg7Ns3s5nAEYQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-01-19 13:11 ` Icenowy Zheng
2017-01-19 13:11 ` [linux-sunxi] " Icenowy Zheng
[not found] ` <128701484831509-mf8Frdr2Tdlxpj1cXAZ9Bg@public.gmane.org>
2017-01-19 17:29 ` Maxime Ripard
2017-01-19 17:29 ` [linux-sunxi] " Maxime Ripard
2017-01-19 17:29 ` Maxime Ripard
2017-01-19 17:41 ` Maxime Ripard
2017-01-19 17:41 ` [linux-sunxi] " Maxime Ripard
2017-01-19 17:41 ` Maxime Ripard
2017-01-26 10:03 ` Linus Walleij
2017-01-26 10:03 ` [linux-sunxi] " Linus Walleij
2017-01-26 10:03 ` Linus Walleij
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