From: H Hartley Sweeten Date: Tue, 29 Apr 2014 19:59:52 +0000 (-0700) Subject: staging: comedi: ni_at_ao: fix 8254 timer programming X-Git-Tag: firefly_0821_release~176^2~3465^2~39^2~1051 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4f161fc756a086f56b200a5a9e7ef60c28265a4c;p=firefly-linux-kernel-4.4.55.git staging: comedi: ni_at_ao: fix 8254 timer programming As pointed out by Ian Abbott, the i8254_load() function does not use the I8254_MODE* values to specify the "mode". Refactor the 8254 timer programming to use the i8254_set_mode() and i8254_write() helpers instead of i8254_load(). This allows us to use the I8254_MODE* defines to clarify the code. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c index 10e3e9475ee2..c93b47bcca51 100644 --- a/drivers/staging/comedi/drivers/ni_at_ao.c +++ b/drivers/staging/comedi/drivers/ni_at_ao.c @@ -310,6 +310,7 @@ static int atao_calib_insn_read(struct comedi_device *dev, static void atao_reset(struct comedi_device *dev) { struct atao_private *devpriv = dev->private; + unsigned long timer_base = dev->iobase + ATAO_82C53_BASE; /* This is the reset sequence described in the manual */ @@ -317,10 +318,9 @@ static void atao_reset(struct comedi_device *dev) outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG); /* Put outputs of counter 1 and counter 2 in a high state */ - i8254_load(dev->iobase + ATAO_82C53_BASE, 0, - 0, 0x0003, I8254_MODE4 | I8254_BINARY); - i8254_set_mode(dev->iobase + ATAO_82C53_BASE, 0, - 1, I8254_MODE4 | I8254_BINARY); + i8254_set_mode(timer_base, 0, 0, I8254_MODE4 | I8254_BINARY); + i8254_set_mode(timer_base, 0, 1, I8254_MODE4 | I8254_BINARY); + i8254_write(timer_base, 0, 0, 0x0003); outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);