linux-rtc.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Rob Herring <robh@kernel.org>
To: Sergey Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <maz@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Paul Burton <paulburton@kernel.org>,
	Ralf Baechle <ralf@linux-mips.org>,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	devicetree@vger.kernel.org,
	"open list:REAL TIME CLOCK (RTC) SUBSYSTEM" 
	<linux-rtc@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 2/6] dt-bindings: interrupt-controller: Convert mti,gic to DT schema
Date: Wed, 1 Apr 2020 08:13:58 -0600	[thread overview]
Message-ID: <CAL_JsqJBVTahd9uQPe6KUfVxzGPrGfFarcKBU=EPpon6Ny=Sqg@mail.gmail.com> (raw)
In-Reply-To: <20200401101930.3lk4t6wk6j5ne6ay@ubsrv2.baikal.int>

On Wed, Apr 1, 2020 at 4:19 AM Sergey Semin
<Sergey.Semin@baikalelectronics.ru> wrote:
>
> On Tue, Mar 31, 2020 at 03:02:48PM -0600, Rob Herring wrote:
> > On Tue, Mar 24, 2020 at 08:43:21PM +0300, Sergey.Semin@baikalelectronics.ru wrote:
> > > From: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> > >
> > > Modern device tree bindings are supposed to be created as YAML-files
> > > in accordance with DT schema. This commit replaces MIPS GIC legacy bare
> > > text binding with YAML file. As before the binding file states that the
> > > corresponding dts node is supposed to be compatible with MIPS Global
> > > Interrupt Controller indicated by the "mti,gic" compatible string and
> > > to provide a mandatory interrupt-controller and '#interrupt-cells'
> > > properties. There might be optional registers memory range,
> > > "mti,reserved-cpu-vectors" and "mti,reserved-ipi-vectors" properties
> > > specified.
> > >
> > > MIPS GIC also includes a free-running global timer, per-CPU count/compare
> > > timers, and a watchdog. Since currently the GIC Timer is only supported the
> > > DT schema expects an IRQ and clock-phandler charged timer sub-node with
> > > "mti,mips-gic-timer" compatible string.
> > >
> > > Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> > > Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
> > > Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> > > Cc: Paul Burton <paulburton@kernel.org>
> > > Cc: Ralf Baechle <ralf@linux-mips.org>
> > > Cc: Alessandro Zummo <a.zummo@towertech.it>
> > > Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
> > > Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
> > > Cc: Thomas Gleixner <tglx@linutronix.de>
> > > Cc: Arnd Bergmann <arnd@arndb.de>
> > > Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
> > > Cc: Rob Herring <robh+dt@kernel.org>
> > > Cc: Mark Rutland <mark.rutland@arm.com>
> > > Cc: devicetree@vger.kernel.org
> > > Cc: linux-rtc@vger.kernel.org
> > >
> > > ---
> > >
> > > I don't really know who is the corresponding driver maintainer, so I
> > > added to the maintainers schema Paul since he used to be looking for the
> > > MIPS arch and Thomas looking after it now. Any idea what email should be
> > > specified there instead?
> > >
> > > Similarly to the previous patch the "oneOf: - required: ..." pattern isn't
> > > working here. Supposedly due to the script' dtschema/lib.py
> > > interrupts/interrupts-extended fixup.
> > > ---
> > >  .../interrupt-controller/mips-gic.txt         |  67 --------
> > >  .../interrupt-controller/mti,gic.yaml         | 152 ++++++++++++++++++
> > >  2 files changed, 152 insertions(+), 67 deletions(-)
> > >  delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt
> > >  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mti,gic.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt b/Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt
> > > deleted file mode 100644
> > > index 173595305e26..000000000000
> > > --- a/Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt
> > > +++ /dev/null
> > > @@ -1,67 +0,0 @@
> > > -MIPS Global Interrupt Controller (GIC)
> > > -
> > > -The MIPS GIC routes external interrupts to individual VPEs and IRQ pins.
> > > -It also supports local (per-processor) interrupts and software-generated
> > > -interrupts which can be used as IPIs.  The GIC also includes a free-running
> > > -global timer, per-CPU count/compare timers, and a watchdog.
> > > -
> > > -Required properties:
> > > -- compatible : Should be "mti,gic".
> > > -- interrupt-controller : Identifies the node as an interrupt controller
> > > -- #interrupt-cells : Specifies the number of cells needed to encode an
> > > -  interrupt specifier.  Should be 3.
> > > -  - The first cell is the type of interrupt, local or shared.
> > > -    See <include/dt-bindings/interrupt-controller/mips-gic.h>.
> > > -  - The second cell is the GIC interrupt number.
> > > -  - The third cell encodes the interrupt flags.
> > > -    See <include/dt-bindings/interrupt-controller/irq.h> for a list of valid
> > > -    flags.
> > > -
> > > -Optional properties:
> > > -- reg : Base address and length of the GIC registers.  If not present,
> > > -  the base address reported by the hardware GCR_GIC_BASE will be used.
> > > -- mti,reserved-cpu-vectors : Specifies the list of CPU interrupt vectors
> > > -  to which the GIC may not route interrupts.  Valid values are 2 - 7.
> > > -  This property is ignored if the CPU is started in EIC mode.
> > > -- mti,reserved-ipi-vectors : Specifies the range of GIC interrupts that are
> > > -  reserved for IPIs.
> > > -  It accepts 2 values, the 1st is the starting interrupt and the 2nd is the size
> > > -  of the reserved range.
> > > -  If not specified, the driver will allocate the last 2 * number of VPEs in the
> > > -  system.
> > > -
> > > -Required properties for timer sub-node:
> > > -- compatible : Should be "mti,gic-timer".
> > > -- interrupts : Interrupt for the GIC local timer.
> > > -
> > > -Optional properties for timer sub-node:
> > > -- clocks : GIC timer operating clock.
> > > -- clock-frequency : Clock frequency at which the GIC timers operate.
> > > -
> > > -Note that one of clocks or clock-frequency must be specified.
> > > -
> > > -Example:
> > > -
> > > -   gic: interrupt-controller@1bdc0000 {
> > > -           compatible = "mti,gic";
> > > -           reg = <0x1bdc0000 0x20000>;
> > > -
> > > -           interrupt-controller;
> > > -           #interrupt-cells = <3>;
> > > -
> > > -           mti,reserved-cpu-vectors = <7>;
> > > -           mti,reserved-ipi-vectors = <40 8>;
> > > -
> > > -           timer {
> > > -                   compatible = "mti,gic-timer";
> > > -                   interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
> > > -                   clock-frequency = <50000000>;
> > > -           };
> > > -   };
> > > -
> > > -   uart@18101400 {
> > > -           ...
> > > -           interrupt-parent = <&gic>;
> > > -           interrupts = <GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>;
> > > -           ...
> > > -   };
> > > diff --git a/Documentation/devicetree/bindings/interrupt-controller/mti,gic.yaml b/Documentation/devicetree/bindings/interrupt-controller/mti,gic.yaml
> > > new file mode 100644
> > > index 000000000000..1e47c0cdc231
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/interrupt-controller/mti,gic.yaml
> > > @@ -0,0 +1,152 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> >
> > Do you have rights to add BSD?
> >
>
> My manager said we can submitted the DT schema bindings under both GPL and
> BSD licenses. Though I don't know what license was of the legacy binding file.

Anything in the kernel without an explicit license is GPL-2.0-only.

> BTW Rob, you ask about the license very often whether I set pure GPL-2.0
> or dual-license header. Just wondering is it some kind of protocol to make
> sure a submitter has got proper rights to submit the binding?

New bindings should be dual GPL/BSD. Converted bindings should be
relicensed if the authors of the original agree or you should maintain
GPL-2.0-only.

Rob

  reply	other threads:[~2020-04-01 14:14 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200306125622.839ED80307C4@mail.baikalelectronics.ru>
2020-03-24 17:43 ` [PATCH v2 0/6] clocksource: Fix MIPS GIC and DW APB Timer for Baikal-T1 SoC support Sergey.Semin
2020-03-24 17:43   ` [PATCH v2 1/6] dt-bindings: rtc: Convert snps,dw-apb-timer to DT schema Sergey.Semin
2020-03-24 18:07     ` Alexandre Belloni
2020-03-24 18:20       ` Serge Semin
2020-03-31 20:14     ` Rob Herring
2020-03-24 17:43   ` [PATCH v2 2/6] dt-bindings: interrupt-controller: Convert mti,gic " Sergey.Semin
2020-03-31 21:02     ` Rob Herring
2020-04-01 10:19       ` Sergey Semin
2020-04-01 14:13         ` Rob Herring [this message]
2020-04-01 22:07           ` Sergey Semin
2020-05-06 21:41   ` [PATCH v3 0/7] clocksource: Fix MIPS GIC and DW APB Timer for Baikal-T1 SoC support Serge Semin
2020-05-06 21:41     ` [PATCH v3 1/7] dt-bindings: rtc: Convert snps,dw-apb-timer to DT schema Serge Semin
2020-05-06 21:41     ` [PATCH v3 2/7] dt-bindings: timer: Move snps,dw-apb-timer DT schema from rtc Serge Semin
2020-05-07 12:03       ` Alexandre Belloni
2020-05-14 19:04       ` Rob Herring
2020-05-06 21:41     ` [PATCH v3 3/7] dt-bindings: interrupt-controller: Convert mti,gic to DT schema Serge Semin
2020-05-14 19:06       ` Rob Herring
2020-05-18 14:51         ` Serge Semin
2020-05-06 21:41     ` [PATCH v3 4/7] clocksource: dw_apb_timer: Set clockevent any-possible-CPU mask Serge Semin
2020-05-06 21:41     ` [PATCH v3 5/7] clocksource: dw_apb_timer_of: Fix missing clockevent timers Serge Semin
2020-05-06 21:41     ` [PATCH v3 6/7] clocksource: mips-gic-timer: Register as sched_clock Serge Semin
2020-05-06 21:41     ` [PATCH v3 7/7] clocksource: mips-gic-timer: Set limitations on clocksource/sched-clocks usage Serge Semin
2020-05-15 17:10       ` Daniel Lezcano
2020-05-16 12:16         ` Serge Semin
2020-05-18 13:59           ` Daniel Lezcano
2020-05-18 14:40             ` Serge Semin
2020-05-18 14:45               ` Serge Semin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAL_JsqJBVTahd9uQPe6KUfVxzGPrGfFarcKBU=EPpon6Ny=Sqg@mail.gmail.com' \
    --to=robh@kernel.org \
    --cc=Alexey.Malahov@baikalelectronics.ru \
    --cc=Sergey.Semin@baikalelectronics.ru \
    --cc=a.zummo@towertech.it \
    --cc=alexandre.belloni@bootlin.com \
    --cc=andy.shevchenko@gmail.com \
    --cc=arnd@arndb.de \
    --cc=daniel.lezcano@linaro.org \
    --cc=devicetree@vger.kernel.org \
    --cc=jason@lakedaemon.net \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rtc@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=maz@kernel.org \
    --cc=paulburton@kernel.org \
    --cc=ralf@linux-mips.org \
    --cc=tglx@linutronix.de \
    --cc=tsbogend@alpha.franken.de \
    --subject='Re: [PATCH v2 2/6] dt-bindings: interrupt-controller: Convert mti,gic to DT schema' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).