[PATCH v6 1/2] drm/mediatek: Add ability to support dynamic connector selection
Jason-JH.Lin
jason-jh.lin at mediatek.com
Sun Jul 9 19:52:46 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_disp_drv.h | 1 +
drivers/gpu/drm/mediatek/mtk_dpi.c | 9 +++
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 84 ++++++++++++++++++++-
drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 5 +-
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 26 +++++++
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 ++
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 37 +++++++--
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 7 ++
8 files changed, 168 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 2254038519e1..5f07037670e9 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -44,6 +44,7 @@ void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
void mtk_dpi_start(struct device *dev);
void mtk_dpi_stop(struct device *dev);
+unsigned int mtk_dpi_encoder_index(struct device *dev);
void mtk_dsi_ddp_start(struct device *dev);
void mtk_dsi_ddp_stop(struct device *dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 948a53f1f4b3..e58783a9d92c 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -782,6 +782,15 @@ void mtk_dpi_stop(struct device *dev)
mtk_dpi_power_off(dpi);
}
+unsigned int mtk_dpi_encoder_index(struct device *dev)
+{
+ struct mtk_dpi *dpi = dev_get_drvdata(dev);
+ unsigned int encoder_index = drm_encoder_index(&dpi->encoder);
+
+ dev_dbg(dev, "encoder index:%d", encoder_index);
+ return encoder_index;
+}
+
static int mtk_dpi_bind(struct device *dev, struct device *master, void *data)
{
struct mtk_dpi *dpi = dev_get_drvdata(dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index d40142842f85..f0ce0e6d0241 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -60,8 +60,11 @@ struct mtk_drm_crtc {
struct device *mmsys_dev;
struct device *dma_dev;
struct mtk_mutex *mutex;
+ unsigned int ddp_comp_nr_ori;
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 +652,65 @@ static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
mtk_ddp_comp_disable_vblank(comp);
}
+static int mtk_drm_crtc_update_output(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ const struct mtk_drm_route *conn_routes;
+ int crtc_index = drm_crtc_index(crtc);
+ int i;
+ struct device *dev;
+ struct device_node *node;
+ struct drm_crtc_state *crtc_state = state->crtcs[crtc_index].new_state;
+ struct mtk_ddp_comp *comp;
+ 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;
+ unsigned int route_index = 0;
+
+ if (!mtk_crtc->num_conn_routes)
+ return 0;
+
+ priv = priv->all_drm_private[crtc_index];
+ dev = priv->dev;
+
+ dev_dbg(dev, "connector change:%d, encoder mask0x%x for crtc%d",
+ crtc_state->connectors_changed, encoder_mask, crtc_index);
+
+ if (!crtc_state->connectors_changed)
+ return 0;
+
+ conn_routes = mtk_crtc->conn_routes;
+ if (conn_routes) {
+ for (i = 0; i < mtk_crtc->num_conn_routes; i++) {
+ comp_id = conn_routes[i].route_ddp;
+ if (priv->comp_node[comp_id]) {
+ if (encoder_mask & BIT(priv->ddp_comp[comp_id].encoder_index)) {
+ route_index = i;
+ break;
+ }
+ }
+ }
+
+ comp_id = conn_routes[route_index].route_ddp;
+ node = priv->comp_node[comp_id];
+ comp = &priv->ddp_comp[comp_id];
+ if (!comp) {
+ dev_err(dev, "Component %pOF not initialized\n", node);
+ return -ENODEV;
+ }
+
+ mtk_crtc->ddp_comp[mtk_crtc->ddp_comp_nr_ori] = comp;
+ dev_dbg(dev, "Add comp_id: %d at path index %d\n",
+ comp->id, mtk_crtc->ddp_comp_nr_ori);
+
+ mtk_crtc->ddp_comp_nr = mtk_crtc->ddp_comp_nr_ori + 1;
+ dev_dbg(dev, "Update total comp num:%d", mtk_crtc->ddp_comp_nr);
+ }
+
+ return 0;
+}
+
int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
struct mtk_plane_state *state)
{
@@ -681,6 +743,12 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id);
+ ret = mtk_drm_crtc_update_output(crtc, state);
+ if (ret < 0) {
+ DRM_DEV_ERROR(comp->dev, "Failed to update crtc output: %d\n", ret);
+ return;
+ }
+
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 +954,8 @@ 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;
@@ -937,6 +1006,19 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
mtk_crtc->mmsys_dev = priv->mmsys_dev;
mtk_crtc->ddp_comp_nr = path_len;
+ mtk_crtc->ddp_comp_nr_ori = path_len;
+ if (conn_routes) {
+ unsigned int comp_id;
+
+ for (i = 0; i < num_conn_routes; i++) {
+ comp_id = conn_routes[i].route_ddp;
+ 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;
+ mtk_crtc->ddp_comp_nr++;
+ }
mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
sizeof(*mtk_crtc->ddp_comp),
GFP_KERNEL);
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 f114da4d36a9..bc7b0a0c20db 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -304,6 +304,7 @@ static const struct mtk_ddp_comp_funcs ddp_dither = {
static const struct mtk_ddp_comp_funcs ddp_dpi = {
.start = mtk_dpi_start,
.stop = mtk_dpi_stop,
+ .encoder_index = mtk_dpi_encoder_index,
};
static const struct mtk_ddp_comp_funcs ddp_dsc = {
@@ -507,6 +508,25 @@ 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 routes_num,
+ struct mtk_ddp_comp *ddp_comp)
+{
+ unsigned int i;
+
+ if (!routes)
+ return 0;
+
+ for (i = 0; i < routes_num; i++)
+ if (dev == ddp_comp[routes[i].route_ddp].dev)
+ return BIT(routes[i].crtc_id);
+
+ DRM_INFO("Failed to find comp in ddp connector table\n");
+
+ return 0;
+}
+
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type)
{
@@ -538,6 +558,12 @@ unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
private->data->third_len, private->ddp_comp))
ret = BIT(2);
else
+ 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\n");
return ret;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index febcaeef16a1..8428baca70f4 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -80,6 +80,7 @@ struct mtk_ddp_comp_funcs {
void (*disconnect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
void (*add)(struct device *dev, struct mtk_mutex *mutex);
void (*remove)(struct device *dev, struct mtk_mutex *mutex);
+ unsigned int (*encoder_index)(struct device *dev);
};
struct mtk_ddp_comp {
@@ -87,6 +88,7 @@ struct mtk_ddp_comp {
int irq;
unsigned int id;
const struct mtk_ddp_comp_funcs *funcs;
+ unsigned int encoder_index;
};
static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)
@@ -275,6 +277,12 @@ static inline bool mtk_ddp_comp_disconnect(struct mtk_ddp_comp *comp, struct dev
return false;
}
+static inline void mtk_ddp_comp_encoder_index_set(struct mtk_ddp_comp *comp)
+{
+ if (comp->funcs && comp->funcs->encoder_index)
+ comp->encoder_index = comp->funcs->encoder_index(comp->dev);
+}
+
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type);
unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 6dcb4ba2466c..ecd113f9908c 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 +290,9 @@ 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,
};
static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
@@ -350,6 +356,7 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev)
{
struct mtk_drm_private *drm_priv = dev_get_drvdata(dev);
struct mtk_drm_private *all_drm_priv[MAX_CRTC];
+ struct mtk_drm_private *temp_drm_priv;
struct device_node *phandle = dev->parent->of_node;
const struct of_device_id *of_id;
struct device_node *node;
@@ -372,9 +379,18 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev)
if (!drm_dev || !dev_get_drvdata(drm_dev))
continue;
- all_drm_priv[cnt] = dev_get_drvdata(drm_dev);
- if (all_drm_priv[cnt] && all_drm_priv[cnt]->mtk_drm_bound)
- cnt++;
+ temp_drm_priv = dev_get_drvdata(drm_dev);
+ if (temp_drm_priv) {
+ if (temp_drm_priv->mtk_drm_bound)
+ cnt++;
+
+ if (temp_drm_priv->data->main_len)
+ all_drm_priv[0] = temp_drm_priv;
+ else if (temp_drm_priv->data->ext_len)
+ all_drm_priv[1] = temp_drm_priv;
+ else if (temp_drm_priv->data->third_len)
+ all_drm_priv[2] = temp_drm_priv;
+ }
}
if (drm_priv->data->mmsys_dev_num == cnt) {
@@ -408,6 +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;
}
@@ -466,21 +487,23 @@ static int mtk_drm_kms_init(struct drm_device *drm)
if (i == 0 && 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 == 1 && 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 == 2 && 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 eb2fd45941f0..39697a591046 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -22,6 +22,11 @@ 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;
@@ -29,6 +34,8 @@ 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
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