Quoting Chris Wilson (2018-09-06 10:08:37)
> Quoting Jani Nikula (2018-09-06 09:21:26)
> > With i915.dmc_firmware_path="" it's obvious the intention is to disable
> > CSR firmware loading. Bypass the firmware request altogether in this
> > case, with more obvious debug logging.
> >
> > Signed-off-by: Jani Nikula <jani.nik...@intel.com>
> > ---
> > drivers/gpu/drm/i915/intel_csr.c | 6 ++++++
> > 1 file changed, 6 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_csr.c
> > b/drivers/gpu/drm/i915/intel_csr.c
> > index 956ac8bbf5e4..dbaeffddb5e7 100644
> > --- a/drivers/gpu/drm/i915/intel_csr.c
> > +++ b/drivers/gpu/drm/i915/intel_csr.c
> > @@ -476,6 +476,12 @@ void intel_csr_ucode_init(struct drm_i915_private
> > *dev_priv)
> > }
> >
> > if (i915_modparams.dmc_firmware_path) {
> > + if (strlen(i915_modparams.dmc_firmware_path) == 0) {
> > + csr->fw_path = NULL;
> > + DRM_DEBUG_KMS("Disabling CSR firmare and runtime
> > PM\n");
>
> In response to a user parameter, could even be DRM_INFO().
Either way (but my preference here is for DRM_INFO),
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
-Chris
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