From: "Sa, Nuno" <Nuno.Sa@analog.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
"linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 09/16] iio: adc: max1027: Create a helper to configure the channels to scan
Date: Fri, 20 Aug 2021 07:18:21 +0000 [thread overview]
Message-ID: <SJ0PR03MB63593FAF61A76DAB1D06931999C19@SJ0PR03MB6359.namprd03.prod.outlook.com> (raw)
In-Reply-To: <20210818111139.330636-10-miquel.raynal@bootlin.com>
> -----Original Message-----
> From: Miquel Raynal <miquel.raynal@bootlin.com>
> Sent: Wednesday, August 18, 2021 1:12 PM
> To: Jonathan Cameron <jic23@kernel.org>; Lars-Peter Clausen
> <lars@metafoo.de>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>; linux-
> iio@vger.kernel.org; linux-kernel@vger.kernel.org; Miquel Raynal
> <miquel.raynal@bootlin.com>
> Subject: [PATCH 09/16] iio: adc: max1027: Create a helper to configure
> the channels to scan
>
> [External]
>
> These bits are meant to be reused for triggered buffers setup.
>
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---
> drivers/iio/adc/max1027.c | 26 ++++++++++++++++++--------
> 1 file changed, 18 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
> index 4a78c9cbc339..223c9e4abd86 100644
> --- a/drivers/iio/adc/max1027.c
> +++ b/drivers/iio/adc/max1027.c
> @@ -236,6 +236,22 @@ struct max1027_state {
> u8 reg ____cacheline_aligned;
> };
>
> +/* Scan from 0 to the highest requested channel */
> +static int max1027_configure_chans_to_scan(struct iio_dev
> *indio_dev)
> +{
> + struct max1027_state *st = iio_priv(indio_dev);
> + int ret;
> +
> + /* The temperature could be avoided but it simplifies a bit the
> logic */
> + st->reg = MAX1027_CONV_REG | MAX1027_SCAN_0_N |
> MAX1027_TEMP;
> + st->reg |= MAX1027_CHAN(fls(*indio_dev-
> >active_scan_mask) - 2);
> + ret = spi_write(st->spi, &st->reg, 1);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
return spi_write(st->spi, &st->reg, 1);?
> +}
> +
> static int max1027_configure_trigger(struct iio_dev *indio_dev)
> {
> struct max1027_state *st = iio_priv(indio_dev);
> @@ -391,14 +407,8 @@ static int
> max1027_set_cnvst_trigger_state(struct iio_trigger *trig, bool state)
> if (ret)
> return ret;
>
> - /*
> - * Scan from 0 to the highest requested channel. The
> temperature
> - * could be avoided but it simplifies a bit the logic.
> - */
> - st->reg = MAX1027_CONV_REG |
> MAX1027_SCAN_0_N | MAX1027_TEMP;
> - st->reg |= MAX1027_CHAN(fls(*indio_dev-
> >active_scan_mask) - 2);
> - ret = spi_write(st->spi, &st->reg, 1);
> - if (ret < 0)
> + ret = max1027_configure_chans_to_scan(indio_dev);
> + if (ret)
> return ret;
> } else {
> /*
> --
> 2.27.0
next prev parent reply other threads:[~2021-08-20 7:18 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-18 11:11 [PATCH 00/16] Bring software triggers support to MAX1027-like ADCs Miquel Raynal
2021-08-18 11:11 ` [PATCH 01/16] iio: adc: max1027: Fix wrong shift with 12-bit devices Miquel Raynal
2021-08-20 7:02 ` Sa, Nuno
2021-08-30 9:57 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 02/16] iio: adc: max1027: Fix the number of max1X31 channels Miquel Raynal
2021-08-20 7:03 ` Sa, Nuno
2021-08-30 10:00 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 03/16] iio: adc: max1027: Push only the requested samples Miquel Raynal
2021-08-20 7:10 ` Sa, Nuno
2021-08-30 10:07 ` Jonathan Cameron
2021-08-30 10:49 ` Sa, Nuno
2021-08-30 14:29 ` Jonathan Cameron
2021-08-30 15:02 ` Sa, Nuno
2021-09-01 8:12 ` Miquel Raynal
2021-09-04 14:06 ` Jonathan Cameron
2021-09-06 8:59 ` Sa, Nuno
2021-09-06 16:56 ` Jonathan Cameron
2021-09-06 17:34 ` Miquel Raynal
2021-08-30 10:06 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 04/16] iio: adc: max1027: Lower conversion time Miquel Raynal
2021-08-20 7:12 ` Sa, Nuno
2021-08-30 10:10 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 05/16] iio: adc: max1027: Drop extra warning message Miquel Raynal
2021-08-20 7:12 ` Sa, Nuno
2021-08-30 10:12 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 06/16] iio: adc: max1027: Rename a helper Miquel Raynal
2021-08-20 7:13 ` Sa, Nuno
2021-08-18 11:11 ` [PATCH 07/16] iio: adc: max1027: Create a helper to configure the trigger Miquel Raynal
2021-08-20 7:16 ` Sa, Nuno
2021-08-30 10:16 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 08/16] iio: adc: max1027: Explain better how the trigger state gets changed Miquel Raynal
2021-08-20 7:17 ` Sa, Nuno
2021-08-18 11:11 ` [PATCH 09/16] iio: adc: max1027: Create a helper to configure the channels to scan Miquel Raynal
2021-08-20 7:18 ` Sa, Nuno [this message]
2021-08-18 11:11 ` [PATCH 10/16] iio: adc: max1027: Prevent single channel accesses during buffer reads Miquel Raynal
2021-08-20 7:20 ` Sa, Nuno
2021-08-20 7:30 ` Sa, Nuno
2021-08-30 10:20 ` Jonathan Cameron
2021-09-02 8:56 ` Miquel Raynal
2021-08-18 11:11 ` [PATCH 11/16] iio: adc: max1027: Separate the IRQ handler from the read logic Miquel Raynal
2021-08-20 7:23 ` Sa, Nuno
2021-09-02 8:55 ` Miquel Raynal
2021-09-04 14:08 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 12/16] iio: adc: max1027: Introduce an end of conversion helper Miquel Raynal
2021-08-20 7:28 ` Sa, Nuno
2021-09-02 9:26 ` Miquel Raynal
2021-08-30 10:34 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 13/16] iio: adc: max1027: Prepare re-using the EOC interrupt Miquel Raynal
2021-08-20 7:31 ` Sa, Nuno
2021-08-30 10:30 ` Jonathan Cameron
2021-08-30 10:47 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 14/16] iio: adc: max1027: Consolidate the end of conversion helper Miquel Raynal
2021-08-20 7:45 ` Sa, Nuno
2021-08-30 10:37 ` Jonathan Cameron
2021-08-30 12:44 ` Sa, Nuno
2021-08-30 14:32 ` Jonathan Cameron
2021-09-02 15:12 ` Miquel Raynal
2021-09-03 14:28 ` Sa, Nuno
2021-09-03 14:46 ` Miquel Raynal
2021-09-05 9:41 ` Jonathan Cameron
2021-09-06 9:12 ` Sa, Nuno
2021-09-06 9:30 ` Sa, Nuno
2021-08-18 11:11 ` [PATCH 15/16] iio: adc: max1027: Support software triggers Miquel Raynal
2021-08-20 7:58 ` Sa, Nuno
2021-09-02 12:25 ` Miquel Raynal
2021-09-03 14:20 ` Sa, Nuno
2021-08-30 10:50 ` Jonathan Cameron
2021-09-02 15:21 ` Miquel Raynal
2021-09-05 9:43 ` Jonathan Cameron
2021-08-18 11:11 ` [PATCH 16/16] iio: adc: max1027: Enable software triggers to be used without IRQ Miquel Raynal
2021-08-30 10:54 ` Jonathan Cameron
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=SJ0PR03MB63593FAF61A76DAB1D06931999C19@SJ0PR03MB6359.namprd03.prod.outlook.com \
--to=nuno.sa@analog.com \
--cc=jic23@kernel.org \
--cc=lars@metafoo.de \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=miquel.raynal@bootlin.com \
--cc=thomas.petazzoni@bootlin.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).