diff options
Diffstat (limited to 'drivers/gpu/drm/xlnx/zynqmp_dp.c')
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dp.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index a0606fab0..1846c4971 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -1560,12 +1560,12 @@ disconnected: return connector_status_disconnected; } -static struct edid *zynqmp_dp_bridge_get_edid(struct drm_bridge *bridge, - struct drm_connector *connector) +static const struct drm_edid *zynqmp_dp_bridge_edid_read(struct drm_bridge *bridge, + struct drm_connector *connector) { struct zynqmp_dp *dp = bridge_to_dp(bridge); - return drm_get_edid(connector, &dp->aux.ddc); + return drm_edid_read_ddc(connector, &dp->aux.ddc); } static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = { @@ -1579,7 +1579,7 @@ static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = { .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_check = zynqmp_dp_bridge_atomic_check, .detect = zynqmp_dp_bridge_detect, - .get_edid = zynqmp_dp_bridge_get_edid, + .edid_read = zynqmp_dp_bridge_edid_read, }; /* ----------------------------------------------------------------------------- @@ -1624,8 +1624,17 @@ static irqreturn_t zynqmp_dp_irq_handler(int irq, void *data) u32 status, mask; status = zynqmp_dp_read(dp, ZYNQMP_DP_INT_STATUS); + /* clear status register as soon as we read it */ + zynqmp_dp_write(dp, ZYNQMP_DP_INT_STATUS, status); mask = zynqmp_dp_read(dp, ZYNQMP_DP_INT_MASK); - if (!(status & ~mask)) + + /* + * Status register may report some events, which corresponding interrupts + * have been disabled. Filter out those events against interrupts' mask. + */ + status &= ~mask; + + if (!status) return IRQ_NONE; /* dbg for diagnostic, but not much that the driver can do */ @@ -1634,8 +1643,6 @@ static irqreturn_t zynqmp_dp_irq_handler(int irq, void *data) if (status & ZYNQMP_DP_INT_CHBUF_OVERFLW_MASK) dev_dbg_ratelimited(dp->dev, "overflow interrupt\n"); - zynqmp_dp_write(dp, ZYNQMP_DP_INT_STATUS, status); - if (status & ZYNQMP_DP_INT_VBLANK_START) zynqmp_dpsub_drm_handle_vblank(dp->dpsub); @@ -1721,6 +1728,7 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub) bridge->ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_HPD; bridge->type = DRM_MODE_CONNECTOR_DisplayPort; + bridge->of_node = dp->dev->of_node; dpsub->bridge = bridge; /* |