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path: root/drivers/gpu/drm/rcar-du/rcar_du_kms.c
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Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_kms.c')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_kms.c129
1 files changed, 101 insertions, 28 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index f4125c8ca902..7278b9703c15 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -96,7 +96,8 @@ static const struct rcar_du_format_info rcar_du_format_infos[] = {
.pnmr = PnMR_SPIM_TP_OFF | PnMR_DDDF_YC,
.edf = PnDDCR4_EDF_NONE,
},
- /* The following formats are not supported on Gen2 and thus have no
+ /*
+ * The following formats are not supported on Gen2 and thus have no
* associated .pnmr or .edf settings.
*/
{
@@ -153,7 +154,8 @@ int rcar_du_dumb_create(struct drm_file *file, struct drm_device *dev,
unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
unsigned int align;
- /* The R8A7779 DU requires a 16 pixels pitch alignment as documented,
+ /*
+ * The R8A7779 DU requires a 16 pixels pitch alignment as documented,
* but the R8A7790 DU seems to require a 128 bytes pitch alignment.
*/
if (rcar_du_needs(rcdu, RCAR_DU_QUIRK_ALIGN_128B))
@@ -255,12 +257,12 @@ static void rcar_du_atomic_commit_tail(struct drm_atomic_state *old_state)
/* Apply the atomic update. */
drm_atomic_helper_commit_modeset_disables(dev, old_state);
- drm_atomic_helper_commit_modeset_enables(dev, old_state);
drm_atomic_helper_commit_planes(dev, old_state,
DRM_PLANE_COMMIT_ACTIVE_ONLY);
+ drm_atomic_helper_commit_modeset_enables(dev, old_state);
drm_atomic_helper_commit_hw_done(old_state);
- drm_atomic_helper_wait_for_vblanks(dev, old_state);
+ drm_atomic_helper_wait_for_flip_done(dev, old_state);
drm_atomic_helper_cleanup_planes(dev, old_state);
}
@@ -297,19 +299,19 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
*/
entity = of_graph_get_remote_port_parent(ep->local_node);
if (!entity) {
- dev_dbg(rcdu->dev, "unconnected endpoint %s, skipping\n",
- ep->local_node->full_name);
+ dev_dbg(rcdu->dev, "unconnected endpoint %pOF, skipping\n",
+ ep->local_node);
return -ENODEV;
}
if (!of_device_is_available(entity)) {
dev_dbg(rcdu->dev,
- "connected entity %s is disabled, skipping\n",
- entity->full_name);
+ "connected entity %pOF is disabled, skipping\n",
+ entity);
return -ENODEV;
}
- entity_ep_node = of_parse_phandle(ep->local_node, "remote-endpoint", 0);
+ entity_ep_node = of_graph_get_remote_endpoint(ep->local_node);
for_each_endpoint_of_node(entity, ep_node) {
if (ep_node == entity_ep_node)
@@ -325,8 +327,8 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
if (!connector) {
dev_warn(rcdu->dev,
- "no connector for encoder %s, skipping\n",
- encoder->full_name);
+ "no connector for encoder %pOF, skipping\n",
+ encoder);
of_node_put(entity_ep_node);
of_node_put(encoder);
return -ENODEV;
@@ -348,8 +350,8 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu,
ret = rcar_du_encoder_init(rcdu, output, encoder, connector);
if (ret && ret != -EPROBE_DEFER)
dev_warn(rcdu->dev,
- "failed to initialize encoder %s on output %u (%d), skipping\n",
- of_node_full_name(encoder), output, ret);
+ "failed to initialize encoder %pOF on output %u (%d), skipping\n",
+ encoder, output, ret);
of_node_put(encoder);
of_node_put(connector);
@@ -419,7 +421,8 @@ static int rcar_du_properties_init(struct rcar_du_device *rcdu)
if (rcdu->props.alpha == NULL)
return -ENOMEM;
- /* The color key is expressed as an RGB888 triplet stored in a 32-bit
+ /*
+ * The color key is expressed as an RGB888 triplet stored in a 32-bit
* integer in XRGB8888 format. Bit 24 is used as a flag to disable (0)
* or enable source color keying (1).
*/
@@ -432,6 +435,81 @@ static int rcar_du_properties_init(struct rcar_du_device *rcdu)
return 0;
}
+static int rcar_du_vsps_init(struct rcar_du_device *rcdu)
+{
+ const struct device_node *np = rcdu->dev->of_node;
+ struct of_phandle_args args;
+ struct {
+ struct device_node *np;
+ unsigned int crtcs_mask;
+ } vsps[RCAR_DU_MAX_VSPS] = { { 0, }, };
+ unsigned int vsps_count = 0;
+ unsigned int cells;
+ unsigned int i;
+ int ret;
+
+ /*
+ * First parse the DT vsps property to populate the list of VSPs. Each
+ * entry contains a pointer to the VSP DT node and a bitmask of the
+ * connected DU CRTCs.
+ */
+ cells = of_property_count_u32_elems(np, "vsps") / rcdu->num_crtcs - 1;
+ if (cells > 1)
+ return -EINVAL;
+
+ for (i = 0; i < rcdu->num_crtcs; ++i) {
+ unsigned int j;
+
+ ret = of_parse_phandle_with_fixed_args(np, "vsps", cells, i,
+ &args);
+ if (ret < 0)
+ goto error;
+
+ /*
+ * Add the VSP to the list or update the corresponding existing
+ * entry if the VSP has already been added.
+ */
+ for (j = 0; j < vsps_count; ++j) {
+ if (vsps[j].np == args.np)
+ break;
+ }
+
+ if (j < vsps_count)
+ of_node_put(args.np);
+ else
+ vsps[vsps_count++].np = args.np;
+
+ vsps[j].crtcs_mask |= BIT(i);
+
+ /* Store the VSP pointer and pipe index in the CRTC. */
+ rcdu->crtcs[i].vsp = &rcdu->vsps[j];
+ rcdu->crtcs[i].vsp_pipe = cells >= 1 ? args.args[0] : 0;
+ }
+
+ /*
+ * Then initialize all the VSPs from the node pointers and CRTCs bitmask
+ * computed previously.
+ */
+ for (i = 0; i < vsps_count; ++i) {
+ struct rcar_du_vsp *vsp = &rcdu->vsps[i];
+
+ vsp->index = i;
+ vsp->dev = rcdu;
+
+ ret = rcar_du_vsp_init(vsp, vsps[i].np, vsps[i].crtcs_mask);
+ if (ret < 0)
+ goto error;
+ }
+
+ return 0;
+
+error:
+ for (i = 0; i < ARRAY_SIZE(vsps); ++i)
+ of_node_put(vsps[i].np);
+
+ return ret;
+}
+
int rcar_du_modeset_init(struct rcar_du_device *rcdu)
{
static const unsigned int mmio_offsets[] = {
@@ -461,7 +539,8 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
if (ret < 0)
return ret;
- /* Initialize vertical blanking interrupts handling. Start with vblank
+ /*
+ * Initialize vertical blanking interrupts handling. Start with vblank
* disabled for all CRTCs.
*/
ret = drm_vblank_init(dev, (1 << rcdu->info->num_crtcs) - 1);
@@ -481,7 +560,8 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
rgrp->index = i;
rgrp->num_crtcs = min(rcdu->num_crtcs - 2 * i, 2U);
- /* If we have more than one CRTCs in this group pre-associate
+ /*
+ * If we have more than one CRTCs in this group pre-associate
* the low-order planes with CRTC 0 and the high-order planes
* with CRTC 1 to minimize flicker occurring when the
* association is changed.
@@ -499,17 +579,9 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
/* Initialize the compositors. */
if (rcar_du_has(rcdu, RCAR_DU_FEATURE_VSP1_SOURCE)) {
- for (i = 0; i < rcdu->num_crtcs; ++i) {
- struct rcar_du_vsp *vsp = &rcdu->vsps[i];
-
- vsp->index = i;
- vsp->dev = rcdu;
- rcdu->crtcs[i].vsp = vsp;
-
- ret = rcar_du_vsp_init(vsp);
- if (ret < 0)
- return ret;
- }
+ ret = rcar_du_vsps_init(rcdu);
+ if (ret < 0)
+ return ret;
}
/* Create the CRTCs. */
@@ -537,7 +609,8 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
num_encoders = ret;
- /* Set the possible CRTCs and possible clones. There's always at least
+ /*
+ * Set the possible CRTCs and possible clones. There's always at least
* one way for all encoders to clone each other, set all bits in the
* possible clones field.
*/
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-02 10:25:26 +0300