From: robh@kernel.org (Rob Herring)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 02/48] ARM: at91: Document new TCB bindings
Date: Tue, 21 Jun 2016 15:28:00 -0500 [thread overview]
Message-ID: <20160621202800.GB22435@rob-hp-laptop> (raw)
In-Reply-To: <20160615092955.261f14fb@bbrezillon>
On Wed, Jun 15, 2016 at 09:29:55AM +0200, Boris Brezillon wrote:
> On Tue, 14 Jun 2016 16:47:37 -0500
> Rob Herring <robh@kernel.org> wrote:
>
> > On Sat, Jun 11, 2016 at 12:03:05AM +0200, Alexandre Belloni wrote:
> > > The current binding for the TCB is not flexible enough for some use cases
> > > and prevents proper utilization of all the channels.
> > >
> > > Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
> > > Cc: Thierry Reding <thierry.reding@gmail.com>
> > > Cc: linux-pwm at vger.kernel.org
> > > Cc: Rob Herring <robh+dt@kernel.org>
> > > Cc: devicetree at vger.kernel.org
> > > Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> > > ---
> > > .../devicetree/bindings/arm/atmel-at91.txt | 32 -----------
> > > .../devicetree/bindings/mfd/atmel-tcb.txt | 62 ++++++++++++++++++++++
> > > .../devicetree/bindings/pwm/atmel-tcb-pwm.txt | 12 +++--
> > > 3 files changed, 69 insertions(+), 37 deletions(-)
> > > create mode 100644 Documentation/devicetree/bindings/mfd/atmel-tcb.txt
> >
> > [...]
> > > diff --git a/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt
> > > index 8031148bcf85..ab8fbd5ba184 100644
> > > --- a/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt
> > > +++ b/Documentation/devicetree/bindings/pwm/atmel-tcb-pwm.txt
> > > @@ -2,15 +2,17 @@ Atmel TCB PWM controller
> > >
> > > Required properties:
> > > - compatible: should be "atmel,tcb-pwm"
> > > +- reg: tcb channel to use. Each channel can export 2 PWMs
> >
> > Is there a difference in channels? If not, then this compatible should
> > go.
>
> This one I don't understand.
> The TCB (Timer Counter Block) is an MFD containing 3 Timer Counter
> devices. Each of these devices (also called channels) can be assigned a
> specific mode:
> - timer mode (free-running of programmable)
> - waveform generator mode (IOW, a PWM)
> - capture mode (an IIO device, but we don't have any driver for that
> right now)
>
> So each sub-device of the TCB is represented as a sub-node with its own
> compatible. Is there a problem with that?
Missed this in my first reply. I guess for purposes of referencing pwm
from other nodes this is okay.
Rob
next prev parent reply other threads:[~2016-06-21 20:28 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-10 22:03 [PATCH 00/48] ARM: at91: rework Atmel TCB drivers Alexandre Belloni
2016-06-10 22:03 ` [PATCH 01/48] clk: at91: replace usleep() by udelay() calls Alexandre Belloni
2016-06-10 22:30 ` Arnd Bergmann
2016-06-10 22:37 ` Alexandre Belloni
2016-06-13 15:24 ` Alexandre Belloni
2016-06-13 19:26 ` Arnd Bergmann
2016-06-14 16:05 ` Afzal Mohammed
2016-06-14 16:18 ` Boris Brezillon
2016-06-11 7:49 ` Boris Brezillon
2016-06-10 22:03 ` [PATCH 02/48] ARM: at91: Document new TCB bindings Alexandre Belloni
2016-06-14 21:47 ` Rob Herring
2016-06-15 7:29 ` Boris Brezillon
2016-06-21 20:08 ` Rob Herring
2016-06-21 20:28 ` Rob Herring [this message]
2016-06-10 22:03 ` [PATCH 03/48] ARM: dts: at91: at91rm9200: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 04/48] ARM: dts: at91: at91rm9200ek; use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 05/48] ARM: dts: at91: mpa1600; " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 06/48] ARM: dts: at91: at91sam9260: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 07/48] ARM: dts: at91: ethernut5: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 08/48] ARM: dts: at91: foxg20: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 09/48] ARM: dts: at91: animeo_ip: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 10/48] ARM: dts: at91: kizbox: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 11/48] ARM: dts: at91: at91sam9g20ek: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 12/48] ARM: dts: at91: ge863-pro3: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 13/48] ARM: dts: at91: at91sam9261: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 14/48] ARM: dts: at91: at91sam9261ek: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 15/48] ARM: dts: at91: at91sam9263: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 16/48] ARM: dts: at91: at91sam9263ek: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 17/48] ARM: dts: at91: calao: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 18/48] ARM: dts: at91: at91sam9g45: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 19/48] ARM: dts: at91: at91sam9m10g45ek: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 20/48] ARM: dts: at91: pm9g45: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 21/48] ARM: dts: at91: at91sam9rl: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 22/48] ARM: dts: at91: at91sam9rlek: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 23/48] ARM: dts: at91: at91sam9n12: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 24/48] ARM: dts: at91: at91sam9n12ek: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 25/48] ARM: dts: at91: at91sam9x5: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 26/48] ARM: dts: at91: at91sam9x5cm: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 27/48] ARM: dts: at91: acme/g25: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 28/48] ARM: dts: at91: cosino: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 29/48] ARM: dts: at91: kizboxmini: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 30/48] ARM: dts: at91: sama5d3: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 31/48] ARM: dts: at91: sama5d3xek; use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 32/48] ARM: dts: at91: sama5d3 Xplained: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 33/48] ARM: dts: at91: kizbox2: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 34/48] ARM: dts: at91: sama5d4: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 35/48] ARM: dts: at91: sama5d4: Add TCB2 Alexandre Belloni
2016-06-10 22:03 ` [PATCH 36/48] ARM: dts: at91: sama5d4ek: use TCB2 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 37/48] ARM: dts: at91: sama5d4 Xplained: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 38/48] ARM: dts: at91: ma5d4: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 39/48] ARM: dts: at91: vinco: " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 40/48] ARM: dts: at91: sama5d2: TC blocks are also simple-mfd and syscon devices Alexandre Belloni
2016-06-10 22:03 ` [PATCH 41/48] ARM: dts: at91: sama5d2 Xplained: use TCB0 as clocksource Alexandre Belloni
2016-06-10 22:03 ` [PATCH 42/48] clocksource/drivers: Add a new driver for the Atmel ARM TC blocks Alexandre Belloni
2016-06-11 12:48 ` Boris Brezillon
2016-06-22 13:07 ` Daniel Lezcano
2016-06-22 13:13 ` Boris Brezillon
2016-06-24 10:07 ` Daniel Lezcano
2017-05-16 11:59 ` Alexandre Belloni
2017-05-16 14:25 ` Daniel Lezcano
2017-05-16 14:35 ` Alexandre Belloni
2016-06-10 22:03 ` [PATCH 43/48] clocksource/drivers: Add a clockevent driver for Atmel " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 44/48] clocksource: atmel-pit: allow unselecting ATMEL_PIT Alexandre Belloni
2016-06-11 9:43 ` Thomas Gleixner
2016-06-11 10:53 ` Alexandre Belloni
2016-06-13 19:04 ` Boris Brezillon
2016-06-13 19:14 ` Thomas Gleixner
2016-06-16 14:41 ` Boris Brezillon
2016-06-10 22:03 ` [PATCH 45/48] ARM: at91/defconfig: sama5: unselect ATMEL_PIT Alexandre Belloni
2016-06-10 22:03 ` [PATCH 46/48] ARM: at91/defconfig: at91_dt " Alexandre Belloni
2016-06-10 22:03 ` [PATCH 47/48] PWM: atmel-tcb: switch to new binding Alexandre Belloni
2016-06-11 2:22 ` kbuild test robot
2016-06-10 22:03 ` [PATCH 48/48] ARM: dts: at91: kizbox: switch to new pwm-atmel-tcb binding Alexandre Belloni
2016-06-11 0:14 ` kbuild test robot
2016-06-11 10:25 ` Alexandre Belloni
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