From: thierry.reding@gmail•com (Thierry Reding)
To: linux-arm-kernel@lists•infradead.org
Subject: [RESEND 07/11] pwm: sti: Initialise PWM Capture channel data
Date: Fri, 15 Apr 2016 16:23:17 +0200 [thread overview]
Message-ID: <20160415142317.GF3472@ulmo.ba.sec> (raw)
In-Reply-To: <20160415131146.GE3589@x1>
On Fri, Apr 15, 2016 at 02:11:46PM +0100, Lee Jones wrote:
> On Tue, 12 Apr 2016, Thierry Reding wrote:
> > On Wed, Mar 02, 2016 at 03:32:05PM +0000, Lee Jones wrote:
> > [...]
> > > +struct sti_cpt_data {
> > > + u32 snapshot[3];
> > > + int index;
> > > + int gpio;
>
> [...]
>
> > > +
> > > + init_waitqueue_head(&data->wait);
> > > + mutex_init(&data->lock);
> > > + data->gpio = of_get_named_gpio(np, "capture-gpios", chan);
> > > + pc->cpt_data[chan] = data;
> >
> > Converting to per-PWM data should be as simple as turning this last line
> > into:
> >
> > pwm_set_chip_data(pc->chip.pwms[chan], data);
> >
> > Also I don't see any cleanup for this data in the driver. The memory for
> > the per-PWM data should be freed by devm_*() infrastructure, but how
> > will the GPIO be released?
>
> There is no reason to release a GPIO.
Why? If you request it why would you not need to release it?
Thierry
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next prev parent reply other threads:[~2016-04-15 14:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-02 15:31 [RESEND 00/11] pwm: Add support for PWM Capture Lee Jones
2016-03-02 15:31 ` [RESEND 01/11] pwm: Add PWM Capture support Lee Jones
2016-04-12 10:08 ` Thierry Reding
2016-04-13 9:36 ` Lee Jones
2016-04-13 14:50 ` Thierry Reding
2016-03-02 15:32 ` [RESEND 02/11] pwm: sysfs: " Lee Jones
2016-04-12 10:15 ` Thierry Reding
2016-04-13 9:40 ` Lee Jones
2016-03-02 15:32 ` [RESEND 03/11] pwm: sti: Reorganise register names in preparation for new functionality Lee Jones
2016-03-02 15:32 ` [RESEND 04/11] pwm: sti: Only request clock rate when you need to Lee Jones
2016-03-02 15:32 ` [RESEND 05/11] pwm: sti: Supply PWM Capture register addresses and bit locations Lee Jones
2016-03-02 15:32 ` [RESEND 06/11] pwm: sti: Supply PWM Capture clock handling Lee Jones
2016-03-02 15:32 ` [RESEND 07/11] pwm: sti: Initialise PWM Capture channel data Lee Jones
2016-04-12 10:29 ` Thierry Reding
2016-04-15 12:39 ` Lee Jones
2016-04-15 14:22 ` Thierry Reding
2016-04-15 14:31 ` Lee Jones
2016-04-15 13:11 ` Lee Jones
2016-04-15 14:23 ` Thierry Reding [this message]
2016-03-02 15:32 ` [RESEND 08/11] pwm: sti: Add support for PWM Capture IRQs Lee Jones
2016-04-12 10:35 ` Thierry Reding
2016-04-13 10:05 ` Lee Jones
2016-04-13 15:16 ` Thierry Reding
2016-03-02 15:32 ` [RESEND 09/11] pwm: sti: Add PWM Capture call-back Lee Jones
2016-04-12 10:53 ` Thierry Reding
2016-04-13 10:25 ` Lee Jones
2016-04-13 15:22 ` Thierry Reding
2016-04-15 8:29 ` Lee Jones
2016-04-15 14:20 ` Thierry Reding
2016-03-02 15:32 ` [RESEND 10/11] pwm: sti: Enable PWM Capture Lee Jones
2016-04-12 10:56 ` Thierry Reding
2016-03-02 15:32 ` [RESEND 11/11] pwm: sti: Take the opportunity to conduct a little house keeping Lee Jones
2016-04-12 7:28 ` [RESEND 00/11] pwm: Add support for PWM Capture Lee Jones
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