Messages in this thread | | | From | Dmitry Baryshkov <> | Date | Thu, 31 Mar 2022 01:16:23 +0300 | Subject | Re: [PATCH v6 4/8] drm/msm/dp: avoid handling masked interrupts |
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On Wed, 30 Mar 2022 at 19:03, Sankeerth Billakanti <quic_sbillaka@quicinc.com> wrote: > > The interrupt register will still reflect the connect and disconnect > interrupt status without generating an actual HW interrupt. > The controller driver should not handle those masked interrupts. > > Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com> > --- > drivers/gpu/drm/msm/dp/dp_catalog.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c > index 3c16f95..1809ce2 100644 > --- a/drivers/gpu/drm/msm/dp/dp_catalog.c > +++ b/drivers/gpu/drm/msm/dp/dp_catalog.c > @@ -608,13 +608,14 @@ u32 dp_catalog_hpd_get_intr_status(struct dp_catalog *dp_catalog) > { > struct dp_catalog_private *catalog = container_of(dp_catalog, > struct dp_catalog_private, dp_catalog); > - int isr = 0; > + int isr, mask; > > isr = dp_read_aux(catalog, REG_DP_DP_HPD_INT_STATUS); > dp_write_aux(catalog, REG_DP_DP_HPD_INT_ACK, > (isr & DP_DP_HPD_INT_MASK)); > + mask = dp_read_aux(catalog, REG_DP_DP_HPD_INT_MASK); > > - return isr; > + return isr & (DP_DP_HPD_STATE_STATUS_MASK | mask);
I suspect that the logic is inverted here. Shouldn't it be:
return isr & DP_DP_HPD_STATE_STATUS_MASK & mask;
?
> } > > int dp_catalog_ctrl_get_interrupt(struct dp_catalog *dp_catalog) > -- > 2.7.4 >
-- With best wishes Dmitry
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