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We'll allow s/functiuon/function > the caller to specify the poll parameters. > > Signed-off-by: Ville Syrjälä > --- > drivers/gpu/drm/i915/display/intel_dsb.c | 19 +++++++++++++++++++ > drivers/gpu/drm/i915/display/intel_dsb.h | 3 +++ > 2 files changed, 22 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c > index 2f2812c23972..b68ee125afae 100644 > --- a/drivers/gpu/drm/i915/display/intel_dsb.c > +++ b/drivers/gpu/drm/i915/display/intel_dsb.c > @@ -452,6 +452,25 @@ void intel_dsb_wait_scanline_out(struct intel_atomic_state *state, > start, end); > } > > +void intel_dsb_poll(struct intel_dsb *dsb, > + i915_reg_t reg, u32 mask, u32 val, > + int wait, int count) Perhaps `wait_us` to convey that value is in microseconds. In any case change LGTM. Reviewed-by: Ankit Nautiyal > +{ > + struct intel_crtc *crtc = dsb->crtc; > + enum pipe pipe = crtc->pipe; > + > + intel_dsb_reg_write(dsb, DSB_POLLMASK(pipe, dsb->id), mask); > + intel_dsb_reg_write(dsb, DSB_POLLFUNC(pipe, dsb->id), > + DSB_POLL_ENABLE | > + DSB_POLL_WAIT(wait) | DSB_POLL_COUNT(count)); > + > + intel_dsb_noop(dsb, 5); > + > + intel_dsb_emit(dsb, val, > + (DSB_OPCODE_POLL << DSB_OPCODE_SHIFT) | > + i915_mmio_reg_offset(reg)); > +} > + > static void intel_dsb_align_tail(struct intel_dsb *dsb) > { > u32 aligned_tail, tail; > diff --git a/drivers/gpu/drm/i915/display/intel_dsb.h b/drivers/gpu/drm/i915/display/intel_dsb.h > index da6df07a3c83..4511d1a1a187 100644 > --- a/drivers/gpu/drm/i915/display/intel_dsb.h > +++ b/drivers/gpu/drm/i915/display/intel_dsb.h > @@ -54,6 +54,9 @@ void intel_dsb_wait_scanline_out(struct intel_atomic_state *state, > int lower, int upper); > void intel_dsb_vblank_evade(struct intel_atomic_state *state, > struct intel_dsb *dsb); > +void intel_dsb_poll(struct intel_dsb *dsb, > + i915_reg_t reg, u32 mask, u32 val, > + int wait, int count); > void intel_dsb_chain(struct intel_atomic_state *state, > struct intel_dsb *dsb, > struct intel_dsb *chained_dsb,