From: Jonathan Cameron <jic23@kernel.org>
To: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: <linux-iio@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-kernel@vger.kernel.org>, <ludovic.desroches@microchip.com>,
<eugen.hristev@microchip.com>, <nicolas.ferre@microchip.com>,
<alexandre.belloni@bootlin.com>, <alexandre.torgue@st.com>,
<mcoquelin.stm32@gmail.com>, <ak@it-klinger.de>
Subject: Re: [PATCH v2 4/8] iio: stm32-dfsdm-adc: pass iio device as arg for the interrupt handler
Date: Sat, 16 May 2020 18:20:44 +0100 [thread overview]
Message-ID: <20200516182044.373adf4b@archlinux> (raw)
In-Reply-To: <20200514131710.84201-5-alexandru.ardelean@analog.com>
On Thu, 14 May 2020 16:17:06 +0300
Alexandru Ardelean <alexandru.ardelean@analog.com> wrote:
> This changes the argument for the interrupt handler to be the IIO device
> instead of the state-struct.
> Since there will be some changes to how iio_priv_to_dev() is implemented,
> it could be that the helper becomes a bit slower, as it will be hidden away
> in the IIO core.
>
> The iio_priv() call will still be fast enough, as it will return a void
> pointer from the public IIO device structure. So it's better to switch the
> order.
>
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Whilst this one looks fine to me. I'd definitely like an Ack from
one of the stm people in case I'm missing something.
> ---
> drivers/iio/adc/stm32-dfsdm-adc.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
> index 76a60d93fe23..28ef02887bd3 100644
> --- a/drivers/iio/adc/stm32-dfsdm-adc.c
> +++ b/drivers/iio/adc/stm32-dfsdm-adc.c
> @@ -1313,8 +1313,8 @@ static const struct iio_info stm32_dfsdm_info_adc = {
>
> static irqreturn_t stm32_dfsdm_irq(int irq, void *arg)
> {
> - struct stm32_dfsdm_adc *adc = arg;
> - struct iio_dev *indio_dev = iio_priv_to_dev(adc);
> + struct iio_dev *indio_dev = arg;
> + struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
> struct regmap *regmap = adc->dfsdm->regmap;
> unsigned int status, int_en;
>
> @@ -1603,7 +1603,7 @@ static int stm32_dfsdm_adc_probe(struct platform_device *pdev)
> return irq;
>
> ret = devm_request_irq(dev, irq, stm32_dfsdm_irq,
> - 0, pdev->name, adc);
> + 0, pdev->name, iio);
> if (ret < 0) {
> dev_err(dev, "Failed to request IRQ\n");
> return ret;
next prev parent reply other threads:[~2020-05-16 17:20 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 13:17 [PATCH v2 0/8] iio: core: wrap IIO device into an iio_dev_opaque object Alexandru Ardelean
2020-05-14 13:17 ` [PATCH v2 1/8] iio: proximity: ping: pass reference to IIO device via call-stack Alexandru Ardelean
2020-05-16 17:12 ` Jonathan Cameron
2020-05-14 13:17 ` [PATCH v2 2/8] iio: at91-sama5d2_adc: pass ref to IIO device via param for int function Alexandru Ardelean
2020-05-16 17:15 ` Jonathan Cameron
2020-05-14 13:17 ` [PATCH v2 3/8] iio: at91_adc: " Alexandru Ardelean
2020-05-16 17:17 ` Jonathan Cameron
2020-05-18 8:32 ` Ardelean, Alexandru
2020-05-21 18:19 ` Jonathan Cameron
2020-05-14 13:17 ` [PATCH v2 4/8] iio: stm32-dfsdm-adc: pass iio device as arg for the interrupt handler Alexandru Ardelean
2020-05-16 17:20 ` Jonathan Cameron [this message]
2020-05-14 13:17 ` [PATCH v2 5/8] iio: stm32-adc: " Alexandru Ardelean
2020-05-16 17:21 ` Jonathan Cameron
2020-05-14 13:17 ` [PATCH v2 6/8] iio: core: wrap IIO device into an iio_dev_opaque object Alexandru Ardelean
2020-05-16 17:28 ` Jonathan Cameron
2020-05-14 13:17 ` [PATCH v2 7/8] iio: core: simplify alloc alignment code Alexandru Ardelean
2020-05-15 7:12 ` Sa, Nuno
2020-05-15 11:47 ` Ardelean, Alexandru
2020-05-15 12:37 ` Sa, Nuno
2020-05-16 17:30 ` Jonathan Cameron
2020-05-14 13:17 ` [PATCH v2 8/8] iio: core: move debugfs data on the private iio dev info Alexandru Ardelean
2020-05-22 6:58 ` [PATCH v2 0/8] iio: core: wrap IIO device into an iio_dev_opaque object Ardelean, Alexandru
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