From: H Hartley Sweeten Date: Fri, 30 Aug 2013 18:05:58 +0000 (-0700) Subject: staging: comedi: drivers: use comedi_dio_update_state() for simple cases X-Git-Tag: firefly_0821_release~3679^2~3266 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=442ae1bbb73a9ce8bc8743b679fb63cc5cf04dad;p=firefly-linux-kernel-4.4.55.git staging: comedi: drivers: use comedi_dio_update_state() for simple cases commit 97f4289ad08cffe55de06d4ac4f89ac540450aee upstream. [Split from original patch subject: "staging: comedi: drivers: use comedi_dio_update_state() for simple cases"] Use comedi_dio_update_state() to handle the boilerplate code to update the subdevice s->state for simple cases where the hardware is updated when any channel is modified. Also, fix a bug in the amplc_pc263 and amplc_pci263 drivers where the current state is not returned in data[1]. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index 94a752d852bb..0d88e6227761 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -72,6 +72,9 @@ static int pc263_do_insn_bits(struct comedi_device *dev, outb(s->state & 0xFF, dev->iobase); outb(s->state >> 8, dev->iobase + 1); } + + data[1] = s->state; + return insn->n; } diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c index 8b57533bf406..9c53199a419b 100644 --- a/drivers/staging/comedi/drivers/amplc_pci263.c +++ b/drivers/staging/comedi/drivers/amplc_pci263.c @@ -59,6 +59,9 @@ static int pci263_do_insn_bits(struct comedi_device *dev, outb(s->state & 0xFF, dev->iobase); outb(s->state >> 8, dev->iobase + 1); } + + data[1] = s->state; + return insn->n; }