[PATCH v8 6/8] drm/mediatek: Add ability to support dynamic connector selection
Jason-JH.Lin
jason-jh.lin at mediatek.com
Wed Aug 2 07:48:00 PDT 2023
1. Move output drm connector from each ddp_path array to connector array.
2. Add dynamic select available connector flow in crtc create and enable.
Signed-off-by: Nancy Lin <nancy.lin at mediatek.com>
Signed-off-by: Nathan Lu <nathan.lu at mediatek.com>
Signed-off-by: Jason-JH.Lin <jason-jh.lin at mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 81 ++++++++++++++++++++-
drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 5 +-
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 27 ++++++-
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 20 ++++-
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 7 ++
5 files changed, 133 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index d40142842f85..c57012f9c0c8 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -62,6 +62,8 @@ struct mtk_drm_crtc {
struct mtk_mutex *mutex;
unsigned int ddp_comp_nr;
struct mtk_ddp_comp **ddp_comp;
+ unsigned int num_conn_routes;
+ const struct mtk_drm_route *conn_routes;
/* lock for display hardware access */
struct mutex hw_lock;
@@ -649,6 +651,47 @@ static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
mtk_ddp_comp_disable_vblank(comp);
}
+static void mtk_drm_crtc_update_output(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ int crtc_index = drm_crtc_index(crtc);
+ int i;
+ struct device *dev;
+ struct drm_crtc_state *crtc_state = state->crtcs[crtc_index].new_state;
+ struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+ struct mtk_drm_private *priv = crtc->dev->dev_private;
+ unsigned int comp_id;
+ unsigned int encoder_mask = crtc_state->encoder_mask;
+
+ if (!crtc_state->connectors_changed)
+ return;
+
+ if (!mtk_crtc->num_conn_routes)
+ return;
+
+ priv = priv->all_drm_private[crtc_index];
+ dev = priv->dev;
+
+ dev_dbg(dev, "connector change:%d, encoder mask:0x%x for crtc:%d\n",
+ crtc_state->connectors_changed, encoder_mask, crtc_index);
+
+ for (i = 0; i < mtk_crtc->num_conn_routes; i++) {
+ struct mtk_ddp_comp *comp;
+
+ comp_id = mtk_crtc->conn_routes[i].route_ddp;
+ comp = &priv->ddp_comp[comp_id];
+ if (comp->encoder_index >= 0 &&
+ encoder_mask & BIT(comp->encoder_index)) {
+ mtk_crtc->ddp_comp[mtk_crtc->ddp_comp_nr - 1] = comp;
+ dev_dbg(dev, "Add comp_id: %d at path index %d\n",
+ comp->id, mtk_crtc->ddp_comp_nr - 1);
+ break;
+ }
+ }
+
+ dev_dbg(dev, "Update total comp num:%d", mtk_crtc->ddp_comp_nr);
+}
+
int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
struct mtk_plane_state *state)
{
@@ -681,6 +724,8 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id);
+ mtk_drm_crtc_update_output(crtc, state);
+
ret = pm_runtime_resume_and_get(comp->dev);
if (ret < 0) {
DRM_DEV_ERROR(comp->dev, "Failed to enable power domain: %d\n", ret);
@@ -886,7 +931,8 @@ struct device *mtk_drm_crtc_dma_dev_get(struct drm_crtc *crtc)
int mtk_drm_crtc_create(struct drm_device *drm_dev,
const unsigned int *path, unsigned int path_len,
- int priv_data_index)
+ int priv_data_index, const struct mtk_drm_route *conn_routes,
+ unsigned int num_conn_routes)
{
struct mtk_drm_private *priv = drm_dev->dev_private;
struct device *dev = drm_dev->dev;
@@ -1040,5 +1086,38 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
init_waitqueue_head(&mtk_crtc->cb_blocking_queue);
}
#endif
+
+ if (conn_routes) {
+ struct device_node *node;
+ struct mtk_ddp_comp *comp;
+ unsigned int comp_id;
+
+ for (i = 0; i < num_conn_routes; i++) {
+ comp_id = conn_routes[i].route_ddp;
+ node = priv->comp_node[comp_id];
+ comp = &priv->ddp_comp[comp_id];
+
+ if (!comp->dev) {
+ dev_dbg(dev, "comp_id:%d, Component %pOF not initialized\n",
+ comp_id, node);
+ comp->encoder_index = -1;
+ continue;
+ }
+
+ mtk_ddp_comp_encoder_index_set(&priv->ddp_comp[comp_id]);
+ }
+
+ mtk_crtc->num_conn_routes = num_conn_routes;
+ mtk_crtc->conn_routes = conn_routes;
+
+ /* append the last ddp_comp and ddp_comp_nr at the end of mtk_drm_crtc_create */
+ mtk_crtc->ddp_comp[mtk_crtc->ddp_comp_nr] =
+ devm_kmalloc(dev, sizeof(*mtk_crtc->ddp_comp), GFP_KERNEL);
+ if (!mtk_crtc->ddp_comp[mtk_crtc->ddp_comp_nr])
+ return -ENOMEM;
+
+ mtk_crtc->ddp_comp_nr++;
+ }
+
return 0;
}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
index 3e9046993d09..3c224595fa71 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
@@ -8,6 +8,7 @@
#include <drm/drm_crtc.h>
#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_drv.h"
#include "mtk_drm_plane.h"
#define MTK_LUT_SIZE 512
@@ -18,7 +19,9 @@ void mtk_drm_crtc_commit(struct drm_crtc *crtc);
int mtk_drm_crtc_create(struct drm_device *drm_dev,
const unsigned int *path,
unsigned int path_len,
- int priv_data_index);
+ int priv_data_index,
+ const struct mtk_drm_route *conn_routes,
+ unsigned int num_conn_routes);
int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
struct mtk_plane_state *state);
void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index effaaa769b46..c1ea112e6be8 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -508,6 +508,23 @@ static bool mtk_drm_find_comp_in_ddp(struct device *dev,
return false;
}
+static int mtk_drm_find_comp_in_ddp_conn_path(struct device *dev,
+ const struct mtk_drm_route *routes,
+ unsigned int num_routes,
+ struct mtk_ddp_comp *ddp_comp)
+{
+ unsigned int i;
+
+ if (!routes)
+ return -EINVAL;
+
+ for (i = 0; i < num_routes; i++)
+ if (dev == ddp_comp[routes[i].route_ddp].dev)
+ return BIT(routes[i].crtc_id);
+
+ return -ENODEV;
+}
+
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type)
{
@@ -539,7 +556,15 @@ unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
private->data->third_len, private->ddp_comp))
ret = BIT(2);
else
- DRM_INFO("Failed to find comp in ddp table\n");
+ ret = mtk_drm_find_comp_in_ddp_conn_path(dev,
+ private->data->conn_routes,
+ private->data->num_conn_routes,
+ private->ddp_comp);
+
+ if (ret <= 0) {
+ DRM_INFO("Failed to find comp in ddp table, ret =%d\n", ret);
+ ret = 0;
+ }
return ret;
}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index c12886f31e54..9900007667a2 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -185,7 +185,10 @@ static const unsigned int mt8188_mtk_ddp_main[] = {
DDP_COMPONENT_GAMMA,
DDP_COMPONENT_POSTMASK0,
DDP_COMPONENT_DITHER0,
- DDP_COMPONENT_DP_INTF0,
+};
+
+static const struct mtk_drm_route mt8188_mtk_ddp_main_routes[] = {
+ {0, DDP_COMPONENT_DP_INTF0},
};
static const unsigned int mt8192_mtk_ddp_main[] = {
@@ -287,6 +290,8 @@ static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
static const struct mtk_mmsys_driver_data mt8188_vdosys0_driver_data = {
.main_path = mt8188_mtk_ddp_main,
.main_len = ARRAY_SIZE(mt8188_mtk_ddp_main),
+ .conn_routes = mt8188_mtk_ddp_main_routes,
+ .num_conn_routes = ARRAY_SIZE(mt8188_mtk_ddp_main_routes),
.mmsys_dev_num = 1,
};
@@ -419,6 +424,11 @@ static bool mtk_drm_find_mmsys_comp(struct mtk_drm_private *private, int comp_id
if (drv_data->third_path[i] == comp_id)
return true;
+ if (drv_data->num_conn_routes)
+ for (i = 0; i < drv_data->num_conn_routes; i++)
+ if (drv_data->conn_routes[i].route_ddp == comp_id)
+ return true;
+
return false;
}
@@ -477,21 +487,23 @@ static int mtk_drm_kms_init(struct drm_device *drm)
if (i == CRTC_MAIN && priv_n->data->main_len) {
ret = mtk_drm_crtc_create(drm, priv_n->data->main_path,
- priv_n->data->main_len, j);
+ priv_n->data->main_len, j,
+ priv_n->data->conn_routes,
+ priv_n->data->num_conn_routes);
if (ret)
goto err_component_unbind;
continue;
} else if (i == CRTC_EXT && priv_n->data->ext_len) {
ret = mtk_drm_crtc_create(drm, priv_n->data->ext_path,
- priv_n->data->ext_len, j);
+ priv_n->data->ext_len, j, NULL, 0);
if (ret)
goto err_component_unbind;
continue;
} else if (i == CRTC_THIRD && priv_n->data->third_len) {
ret = mtk_drm_crtc_create(drm, priv_n->data->third_path,
- priv_n->data->third_len, j);
+ priv_n->data->third_len, j, NULL, 0);
if (ret)
goto err_component_unbind;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index f4de8bb27685..6f98fff4f1a4 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -28,6 +28,11 @@ struct drm_fb_helper;
struct drm_property;
struct regmap;
+struct mtk_drm_route {
+ const unsigned int crtc_id;
+ const unsigned int route_ddp;
+};
+
struct mtk_mmsys_driver_data {
const unsigned int *main_path;
unsigned int main_len;
@@ -35,6 +40,8 @@ struct mtk_mmsys_driver_data {
unsigned int ext_len;
const unsigned int *third_path;
unsigned int third_len;
+ const struct mtk_drm_route *conn_routes;
+ unsigned int num_conn_routes;
bool shadow_register;
unsigned int mmsys_id;
--
2.18.0
More information about the linux-arm-kernel
mailing list