diff options
| author | Vincent Whitchurch <vincent.whitchurch@axis.com> | 2021-10-07 15:46:41 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-10-21 20:02:54 +0100 |
| commit | 39aa50400794080e401a0334fbf0b058a67fc16c (patch) | |
| tree | 55f5ee850017173fbc1ea42ff5fc7fb33ba6df4e /drivers | |
| parent | b9221f71c285d4ce557c0a2a95e168f641f3396d (diff) | |
| download | linux-39aa50400794080e401a0334fbf0b058a67fc16c.tar.gz | |
iio: multiplexer: iio-mux: Support settle-time-us property
If the devicetree specifies that the hardware requires a settle time, pass this time on to the mux APIs. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Peter Rosin <peda@axentia.se> Link: https://lore.kernel.org/r/20211007134641.13417-4-vincent.whitchurch@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/multiplexer/iio-mux.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/iio/multiplexer/iio-mux.c b/drivers/iio/multiplexer/iio-mux.c index d54ae5cbe51b..f422d44377df 100644 --- a/drivers/iio/multiplexer/iio-mux.c +++ b/drivers/iio/multiplexer/iio-mux.c @@ -33,6 +33,7 @@ struct mux { struct iio_chan_spec *chan; struct iio_chan_spec_ext_info *ext_info; struct mux_child *child; + u32 delay_us; }; static int iio_mux_select(struct mux *mux, int idx) @@ -42,7 +43,8 @@ static int iio_mux_select(struct mux *mux, int idx) int ret; int i; - ret = mux_control_select(mux->control, chan->channel); + ret = mux_control_select_delay(mux->control, chan->channel, + mux->delay_us); if (ret < 0) { mux->cached_state = -1; return ret; @@ -392,6 +394,9 @@ static int mux_probe(struct platform_device *pdev) mux->parent = parent; mux->cached_state = -1; + mux->delay_us = 0; + of_property_read_u32(np, "settle-time-us", &mux->delay_us); + indio_dev->name = dev_name(dev); indio_dev->info = &mux_info; indio_dev->modes = INDIO_DIRECT_MODE; |