From e083926b3e269d4064825dcf2ad50c636fddf8cf Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 6 Aug 2018 11:05:13 +0100
Subject: [PATCH] staging: comedi: ni_mio_common: fix subdevice flags for PFI subdevice
Git-commit: e083926b3e269d4064825dcf2ad50c636fddf8cf
Patch-mainline: v4.19-rc1
References: bsc#1051510
The PFI subdevice flags indicate that the subdevice is readable and
writeable, but that is only true for the supported "M-series" boards,
not the older "E-series" boards. Only set the SDF_READABLE and
SDF_WRITABLE subdevice flags for the M-series boards. These two flags
are mainly for informational purposes.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/staging/comedi/drivers/ni_mio_common.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index b0b05a96c2f0..4dee2fc37aed 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -5446,11 +5446,11 @@ static int ni_E_init(struct comedi_device *dev,
/* Digital I/O (PFI) subdevice */
s = &dev->subdevices[NI_PFI_DIO_SUBDEV];
s->type = COMEDI_SUBD_DIO;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
s->maxdata = 1;
if (devpriv->is_m_series) {
s->n_chan = 16;
s->insn_bits = ni_pfi_insn_bits;
+ s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
ni_writew(dev, s->state, NI_M_PFI_DO_REG);
for (i = 0; i < NUM_PFI_OUTPUT_SELECT_REGS; ++i) {
@@ -5459,6 +5459,7 @@ static int ni_E_init(struct comedi_device *dev,
}
} else {
s->n_chan = 10;
+ s->subdev_flags = SDF_INTERNAL;
}
s->insn_config = ni_pfi_insn_config;
--
2.18.0