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From: Thierry Reding <thierry.reding@gmail.com>
To: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Cc: u.kleine-koenig@pengutronix.de, linux-pwm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] pwm: pca9685: remove ALL_LED PWM channel
Date: Mon, 30 Mar 2020 15:15:57 +0200	[thread overview]
Message-ID: <20200330131557.GD2431644@ulmo> (raw)
In-Reply-To: <20200330130757.GC2431644@ulmo>

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On Mon, Mar 30, 2020 at 03:07:57PM +0200, Thierry Reding wrote:
> On Wed, Feb 26, 2020 at 02:52:27PM +0100, Matthias Schiffer wrote:
> > The interaction of the ALL_LED PWM channel with the other channels was
> > not well-defined. As the ALL_LED feature does not seem very useful and
> > it was making the code significantly more complex, simply remove it.
> > 
> > Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
> > ---
> >  drivers/pwm/pwm-pca9685.c | 115 ++++++--------------------------------
> >  1 file changed, 17 insertions(+), 98 deletions(-)
> 
> Applied, thanks.

By the way, shouldn't we add something like this:

--- >8 ---
diff --git a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
index f21b55c95738..49fff008af09 100644
--- a/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/nxp,pca9685-pwm.txt
@@ -5,8 +5,6 @@ Required properties:
   - compatible: "nxp,pca9685-pwm"
   - #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of
     the cells format.
-    The index 16 is the ALLCALL channel, that sets all PWM channels at the same
-    time.

 Optional properties:
   - invert (bool): boolean to enable inverted logic
--- >8 ---

To make sure we reflect this in the device tree bindings? It doesn't
seem like anyone uses that channel (in fact, it doesn't seem like any
device trees actually exist in-tree that use one of these chips), so it
should be fine to drop that.

Thierry

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  reply	other threads:[~2020-03-30 13:16 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-26 13:52 [PATCH 1/4] pwm: pca9685: remove unused duty_cycle struct element Matthias Schiffer
2020-02-26 13:52 ` [PATCH 2/4] pwm: pca9685: remove ALL_LED PWM channel Matthias Schiffer
2020-03-30 13:07   ` Thierry Reding
2020-03-30 13:15     ` Thierry Reding [this message]
2020-03-30 13:19     ` Andy Shevchenko
2020-03-30 15:38       ` Thierry Reding
2020-03-30 13:34     ` Clemens Gruber
2020-03-30 15:40       ` Thierry Reding
2020-03-30 15:43         ` Thierry Reding
2020-03-30 16:07         ` Clemens Gruber
2020-03-31 12:09           ` (EXT) " Matthias Schiffer
2020-03-31 13:14             ` Clemens Gruber
2020-02-26 13:52 ` [PATCH 3/4] pwm: pca9685: initialize all LED registers during probe Matthias Schiffer
2020-02-26 15:00   ` Uwe Kleine-König
2020-02-26 16:13     ` (EXT) " Matthias Schiffer
2020-03-30 13:07       ` Thierry Reding
2020-02-26 13:52 ` [PATCH 4/4] pwm: pca9685: migrate config/enable/disable to apply Matthias Schiffer
2020-02-26 15:05   ` Uwe Kleine-König
2020-02-26 15:10 ` [PATCH 1/4] pwm: pca9685: remove unused duty_cycle struct element Uwe Kleine-König
2020-02-26 17:03   ` (EXT) " Matthias Schiffer
2020-02-26 19:21     ` Uwe Kleine-König
2020-02-28 13:26       ` (EXT) " Matthias Schiffer
2020-03-30 15:12     ` Clemens Gruber
2020-04-03 23:50       ` Sven Van Asbroeck
2020-04-04 17:35         ` Clemens Gruber
2020-04-04 20:17           ` Sven Van Asbroeck
2020-04-06  9:51             ` Thierry Reding
2020-04-07 13:00               ` (EXT) " Matthias Schiffer
2020-04-09 11:42               ` Sven Van Asbroeck
2020-04-03 23:47     ` Sven Van Asbroeck
2020-04-07 14:46       ` (EXT) " Matthias Schiffer
2020-04-08  8:00         ` Matthias Schiffer
2020-03-30 13:07 ` Thierry Reding
2020-03-30 13:18   ` Andy Shevchenko
2020-03-30 16:02     ` Thierry Reding
2020-03-30 16:10       ` Clemens Gruber
2020-04-01 16:36       ` Clemens Gruber
2020-04-01 17:45         ` Thierry Reding
2020-04-02  7:10           ` (EXT) " Matthias Schiffer

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