mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-06 04:19:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

staging: comedi: ni_mio_common: only reset the ai/ao subdevices if they exist

Browse Source 
So of the boards supported by this driver do not have analog inputs and
some don't have analog outputs. Move the calls that reset these subdevices
during the (*attach) by ni_E_init() so they only happen if the subdevices
are present.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten
2014-07-14 12:24:00 -07:00
committed by Greg Kroah-Hartman
parent caedecfa3a
commit eeca0caa84
1 changed files with 6 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/staging/comedi/drivers/ni_mio_common.c
View File

@@ -5544,6 +5544,9 @@ static int ni_E_init(struct comedi_device *dev,
if (devpriv->mite)
s->async_dma_dir = DMA_FROM_DEVICE;
}
/* reset the analog input configuration */
ni_ai_reset(dev, s);
} else {
s->type = COMEDI_SUBD_UNUSED;
}
@@ -5582,6 +5585,9 @@ static int ni_E_init(struct comedi_device *dev,
if (devpriv->is_67xx)
init_ao_67xx(dev, s);
/* reset the analog output configuration */
ni_ao_reset(dev, s);
} else {
s->type = COMEDI_SUBD_UNUSED;
}
@@ -5779,14 +5785,6 @@ static int ni_E_init(struct comedi_device *dev,
s->insn_write = &ni_freq_out_insn_write;
s->insn_config = &ni_freq_out_insn_config;
/* ai configuration */
s = &dev->subdevices[NI_AI_SUBDEV];
ni_ai_reset(dev, s);
/* analog output configuration */
s = &dev->subdevices[NI_AO_SUBDEV];
ni_ao_reset(dev, s);
if (dev->irq) {
ni_stc_writew(dev,
(irq_polarity ? Interrupt_Output_Polarity : 0) |