From 7d2b8e6aaf9ee87910c2337e1c59bb5d3e3ba8c5 Mon Sep 17 00:00:00 2001
From: Alexandru Ardelean <alexandru.ardelean@analog.com>
Date: Thu, 25 Jan 2018 14:30:45 +0200
Subject: [PATCH] staging: iio: ad5933: switch buffer mode to software
Git-commit: 7d2b8e6aaf9ee87910c2337e1c59bb5d3e3ba8c5
Patch-mainline: v4.16-rc3
References: bsc#1051510
Since commit 152a6a884ae1 ("staging:iio:accel:sca3000 move
to hybrid hard / soft buffer design.")
the buffer mechanism has changed and the
INDIO_BUFFER_HARDWARE flag has been unused.
Since commit 2d6ca60f3284 ("iio: Add a DMAengine framework
based buffer")
the INDIO_BUFFER_HARDWARE flag has been re-purposed for
DMA buffers.
This driver has lagged behind these changes, and
in order for buffers to work, the INDIO_BUFFER_SOFTWARE
needs to be used.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Fixes: 2d6ca60f3284 ("iio: Add a DMAengine framework based buffer")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/staging/iio/impedance-analyzer/ad5933.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -649,8 +649,6 @@ static int ad5933_register_ring_funcs_an
/* Ring buffer functions - here trigger setup related */
indio_dev->setup_ops = &ad5933_ring_setup_ops;
- indio_dev->modes |= INDIO_BUFFER_HARDWARE;
-
return 0;
}
@@ -763,7 +761,7 @@ static int ad5933_probe(struct i2c_clien
indio_dev->dev.parent = &client->dev;
indio_dev->info = &ad5933_info;
indio_dev->name = id->name;
- indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->modes = (INDIO_BUFFER_SOFTWARE | INDIO_DIRECT_MODE);
indio_dev->channels = ad5933_channels;
indio_dev->num_channels = ARRAY_SIZE(ad5933_channels);