Thread (71 messages) 71 messages, 3 authors, 2021-09-06

Re: [PATCH 04/16] iio: adc: max1027: Lower conversion time

From: Jonathan Cameron <jic23@kernel.org>
Date: 2021-08-30 10:07:22
Also in: lkml

On Wed, 18 Aug 2021 13:11:27 +0200
Miquel Raynal [off-list ref] wrote:
When only a few channels are requested, the core will request all of
them as long as ->available_scan_masks is present, thus reducing the
impact of any driver side optimization to avoid converting the unneeded
channels.

Do not share this bitmap with the core, which is optional anyway.
As mentioned in previous patch - do share it with the core, but update
it to include the masks you now support.

As a side note, you should have done this in previous patch anyway
given that patch is effectively a noop with out it. (assuming it was
a good thing to do at all which I'm not sure it is!)

Jonathan
quoted hunk ↗ jump to hunk
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 drivers/iio/adc/max1027.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index 8ab660f596b5..d79dabf20567 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -457,7 +457,6 @@ static int max1027_probe(struct spi_device *spi)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = st->info->channels;
 	indio_dev->num_channels = st->info->num_channels;
-	indio_dev->available_scan_masks = st->info->available_scan_masks;
 
 	st->buffer = devm_kmalloc_array(&indio_dev->dev,
 				  indio_dev->num_channels, 2,
  
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