From: Peter Geis <pgwipeout@gmail.com> To: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: "Heiko Stübner" <heiko@sntech.de>, "Jianqun Xu" <jay.xu@rock-chips.com>, "Tao Huang" <huangtao@rock-chips.com>, "Kever Yang" <kever.yang@rock-chips.com>, "Linus Walleij" <linus.walleij@linaro.org>, "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>, "open list:ARM/Rockchip SoC..." <linux-rockchip@lists.infradead.org>, "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org> Subject: Re: [PATCH v2 0/7] gpio-rockchip driver Date: Mon, 12 Apr 2021 11:00:18 -0400 [thread overview] Message-ID: <CAMdYzYrSwLd7zAo840VvQNs48ki1kwS2LdL+N96aVKrmrMRWbw@mail.gmail.com> (raw) In-Reply-To: <CAHp75VdWES51UPiKayYZ15Mr7pS-Aaz51hKNFmyhbv2JqwPwPA@mail.gmail.com> On Mon, Apr 12, 2021 at 9:34 AM Andy Shevchenko <andy.shevchenko@gmail.com> wrote: > > On Mon, Apr 12, 2021 at 4:30 PM Heiko Stübner <heiko@sntech.de> wrote: > > Am Montag, 12. April 2021, 14:13:37 CEST schrieb Andy Shevchenko: > > > On Sun, Apr 11, 2021 at 4:35 PM Peter Geis <pgwipeout@gmail.com> wrote: > > > > > > > > Separate gpio driver from pinctrl driver, and support v2 controller. > > > > > > > > Tested on rk3566-quartz64 prototype board. > > > > > > Can you give a bit more context? > > > Usually separation means that hardware is represented by two different > > > IP blocks that are (almost) independent to each other. Was it the case > > > on the original platforms? Do you have different pin controller (or > > > it's absent completely) on some new / old platform? > > > > They are separate on all Rockchip SoCs. > > > > I.e. the pinconfig (muxing, pulls, etc) is done via some registers inside > > the "General Register Files" [area for misc registers] > > and control for the gpio functionality is done in separate blocks > > for each bank. > > > > Lumping that stuff together into one driver, was a design-mistake > > from younger-me back in 2013 ;-) > > Thanks! > > To the submitter: Just for the future, please elaborate such things in > the cover letter. Apologies, I only rebased the work and reused the original cover letter. I'll keep that in mind if this sort of situation arises again. > > -- > With Best Regards, > Andy Shevchenko
WARNING: multiple messages have this Message-ID (diff)
From: Peter Geis <pgwipeout@gmail.com> To: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: "Heiko Stübner" <heiko@sntech.de>, "Jianqun Xu" <jay.xu@rock-chips.com>, "Tao Huang" <huangtao@rock-chips.com>, "Kever Yang" <kever.yang@rock-chips.com>, "Linus Walleij" <linus.walleij@linaro.org>, "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>, "open list:ARM/Rockchip SoC..." <linux-rockchip@lists.infradead.org>, "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org> Subject: Re: [PATCH v2 0/7] gpio-rockchip driver Date: Mon, 12 Apr 2021 11:00:18 -0400 [thread overview] Message-ID: <CAMdYzYrSwLd7zAo840VvQNs48ki1kwS2LdL+N96aVKrmrMRWbw@mail.gmail.com> (raw) In-Reply-To: <CAHp75VdWES51UPiKayYZ15Mr7pS-Aaz51hKNFmyhbv2JqwPwPA@mail.gmail.com> On Mon, Apr 12, 2021 at 9:34 AM Andy Shevchenko <andy.shevchenko@gmail.com> wrote: > > On Mon, Apr 12, 2021 at 4:30 PM Heiko Stübner <heiko@sntech.de> wrote: > > Am Montag, 12. April 2021, 14:13:37 CEST schrieb Andy Shevchenko: > > > On Sun, Apr 11, 2021 at 4:35 PM Peter Geis <pgwipeout@gmail.com> wrote: > > > > > > > > Separate gpio driver from pinctrl driver, and support v2 controller. > > > > > > > > Tested on rk3566-quartz64 prototype board. > > > > > > Can you give a bit more context? > > > Usually separation means that hardware is represented by two different > > > IP blocks that are (almost) independent to each other. Was it the case > > > on the original platforms? Do you have different pin controller (or > > > it's absent completely) on some new / old platform? > > > > They are separate on all Rockchip SoCs. > > > > I.e. the pinconfig (muxing, pulls, etc) is done via some registers inside > > the "General Register Files" [area for misc registers] > > and control for the gpio functionality is done in separate blocks > > for each bank. > > > > Lumping that stuff together into one driver, was a design-mistake > > from younger-me back in 2013 ;-) > > Thanks! > > To the submitter: Just for the future, please elaborate such things in > the cover letter. Apologies, I only rebased the work and reused the original cover letter. I'll keep that in mind if this sort of situation arises again. > > -- > With Best Regards, > Andy Shevchenko _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip
next prev parent reply other threads:[~2021-04-12 15:00 UTC|newest] Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-11 13:30 [PATCH v2 0/7] gpio-rockchip driver Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 13:30 ` [PATCH v2 1/7] pinctrl/rockchip: separate struct rockchip_pin_bank to a head file Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 13:30 ` [PATCH v2 2/7] pinctrl/pinctrl-rockchip.h: add pinctrl device to gpio bank struct Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 13:30 ` [PATCH v2 3/7] gpio: separate gpio driver from pinctrl-rockchip driver Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 17:51 ` Johan Jonker 2021-04-11 17:51 ` Johan Jonker 2021-04-11 17:55 ` Heiko Stübner 2021-04-11 17:55 ` Heiko Stübner 2021-04-11 17:58 ` Ezequiel Garcia 2021-04-11 17:58 ` Ezequiel Garcia 2021-04-13 9:48 ` Johan Jonker 2021-04-13 9:48 ` Johan Jonker 2021-04-11 13:30 ` [PATCH v2 4/7] gpio/rockchip: use struct rockchip_gpio_regs for gpio controller Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 13:30 ` [PATCH v2 5/7] gpio/rockchip: support next version " Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 13:30 ` [PATCH v2 6/7] gpio/rockchip: always enable clock for " Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-11 13:30 ` [PATCH v2 7/7] gpio/rockchip: drop irq_gc_lock/irq_gc_unlock for irq set type Peter Geis 2021-04-11 13:30 ` Peter Geis 2021-04-12 12:13 ` [PATCH v2 0/7] gpio-rockchip driver Andy Shevchenko 2021-04-12 12:13 ` Andy Shevchenko 2021-04-12 13:30 ` Heiko Stübner 2021-04-12 13:30 ` Heiko Stübner 2021-04-12 13:33 ` Andy Shevchenko 2021-04-12 13:33 ` Andy Shevchenko 2021-04-12 15:00 ` Peter Geis [this message] 2021-04-12 15:00 ` Peter Geis 2021-04-14 7:29 ` Linus Walleij 2021-04-14 7:29 ` Linus Walleij
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