On Wed, Sep 19, 2018 at 10:17:19AM -0600, Spencer E. Olson wrote:
> Fixes two problems introduced as early as
> commit 03aef4b6dc12 ("Staging: comedi: add ni_mio_common code"):
> (1) Ensures that the last four bits of NISTC_RTSI_TRIGB_OUT_REG register is
> not unduly overwritten on e-series devices. On e-series devices, the
> first three of the last four bits are reserved. The last bit defines
> the output selection of the RGOUT0 pin, otherwise known as
> RTSI_Sub_Selection. For m-series devices, these last four bits are
> indeed used as the output selection of the RTSI7 pin (and the
> RTSI_Sub_Selection bit for the RGOUT0 pin is moved to the
> RTSI_Trig_Direction register.
> (2) Allows all 4 RTSI_BRD lines to be treated as valid sources for RTSI
> lines.
>
> This patch also cleans up the ni_get_rtsi_routing command for readability.
>
> Fixes: 03aef4b6dc12 ("Staging: comedi: add ni_mio_common code")
> Signed-off-by: Spencer E. Olson <olso...@umich.edu>
> Reviewed-by: Ian Abbott <abbo...@mev.co.uk>
> Cc: stable <sta...@vger.kernel.org>
> ---
> I thought I had already submitted this patch a while ago... Whoops.
> .../staging/comedi/drivers/ni_mio_common.c | 24 +++++++++++++------
> 1 file changed, 17 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c
> b/drivers/staging/comedi/drivers/ni_mio_common.c
> index 4dee2fc37aed..4d0d0621780e 100644
> --- a/drivers/staging/comedi/drivers/ni_mio_common.c
> +++ b/drivers/staging/comedi/drivers/ni_mio_common.c
> @@ -4980,7 +4980,10 @@ static int ni_valid_rtsi_output_source(struct
> comedi_device *dev,
> case NI_RTSI_OUTPUT_G_SRC0:
> case NI_RTSI_OUTPUT_G_GATE0:
> case NI_RTSI_OUTPUT_RGOUT0:
> - case NI_RTSI_OUTPUT_RTSI_BRD_0:
> + case NI_RTSI_OUTPUT_RTSI_BRD(0):
> + case NI_RTSI_OUTPUT_RTSI_BRD(1):
> + case NI_RTSI_OUTPUT_RTSI_BRD(2):
> + case NI_RTSI_OUTPUT_RTSI_BRD(3):
> return 1;
> case NI_RTSI_OUTPUT_RTSI_OSC:
> return (devpriv->is_m_series) ? 1 : 0;
> @@ -5001,11 +5004,18 @@ static int ni_set_rtsi_routing(struct comedi_device
> *dev,
> devpriv->rtsi_trig_a_output_reg |= NISTC_RTSI_TRIG(chan, src);
> ni_stc_writew(dev, devpriv->rtsi_trig_a_output_reg,
> NISTC_RTSI_TRIGA_OUT_REG);
> - } else if (chan < 8) {
> + } else if (chan < NISTC_RTSI_TRIG_NUM_CHAN(devpriv->is_m_series)) {
> devpriv->rtsi_trig_b_output_reg &= ~NISTC_RTSI_TRIG_MASK(chan);
> devpriv->rtsi_trig_b_output_reg |= NISTC_RTSI_TRIG(chan, src);
> ni_stc_writew(dev, devpriv->rtsi_trig_b_output_reg,
> NISTC_RTSI_TRIGB_OUT_REG);
> + } else if (chan != NISTC_RTSI_TRIG_OLD_CLK_CHAN) {
> + /* probably should never reach this, since the
> + * ni_valid_rtsi_output_source above errors out if chan is too
> + * high
> + */
> + dev_err(dev->class_dev, "%s: unknown rtsi channel\n", __func__);
This patch breaks the build very badly. Always test-build your patches
at the very least :(
greg k-h
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