* [PATCH v3 0/2] Add dynamic connector selection mechanism
@ 2023-05-09 15:07 Jason-JH.Lin
2023-05-09 15:07 ` [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection Jason-JH.Lin
2023-05-09 15:07 ` [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0 Jason-JH.Lin
0 siblings, 2 replies; 6+ messages in thread
From: Jason-JH.Lin @ 2023-05-09 15:07 UTC (permalink / raw)
To: Chun-Kuang Hu, AngeloGioacchino Del Regno, Alexandre Mergnat
Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
Jason-JH . Lin, Singo Chang, Nancy Lin, Shawn Sung, dri-devel,
linux-mediatek, linux-arm-kernel, linux-kernel,
Project_Global_Chrome_Upstream_Group
To support DSI and eDP as main display connector without modifying
mtk-drm driver, we add the dynamic connector selection mechanism.
Change in v3:
1. Change max_num comparison statement to max().
Change in v2:
1. rebase on linux-next: next-20230426
2. Fix alphabetical order and max_num condition check problem.
Change in v1:
1. based on mediatek-drm maintainer's tree / mediatek-drm-next branch:
https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next
Jason-JH.Lin (2):
drm/mediatek: Add ability to support dynamic connector selection
drm/mediatek: Add DSI support for mt8188 vdosys0
drivers/gpu/drm/mediatek/mtk_disp_drv.h | 2 +
drivers/gpu/drm/mediatek/mtk_dpi.c | 9 ++
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 111 +++++++++++++++++++-
drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 5 +-
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 28 +++++
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 ++
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 49 +++++++--
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 8 ++
drivers/gpu/drm/mediatek/mtk_dsi.c | 9 ++
9 files changed, 218 insertions(+), 11 deletions(-)
--
2.18.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection
2023-05-09 15:07 [PATCH v3 0/2] Add dynamic connector selection mechanism Jason-JH.Lin
@ 2023-05-09 15:07 ` Jason-JH.Lin
2023-05-18 9:29 ` AngeloGioacchino Del Regno
2023-05-09 15:07 ` [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0 Jason-JH.Lin
1 sibling, 1 reply; 6+ messages in thread
From: Jason-JH.Lin @ 2023-05-09 15:07 UTC (permalink / raw)
To: Chun-Kuang Hu, AngeloGioacchino Del Regno, Alexandre Mergnat
Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
Jason-JH . Lin, Singo Chang, Nancy Lin, Shawn Sung, dri-devel,
linux-mediatek, linux-arm-kernel, linux-kernel,
Project_Global_Chrome_Upstream_Group, Nathan Lu
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@mediatek.com>
Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
Signed-off-by: Jason-JH.Lin <jason-jh.lin@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 | 111 +++++++++++++++++++-
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_ddp_comp.h | 8 ++
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 44 ++++++--
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 8 ++
8 files changed, 202 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 2254038519e1..72c57442f965 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);
+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..765fc976e41f 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);
}
+int mtk_dpi_encoder_index(struct device *dev)
+{
+ struct mtk_dpi *dpi = dev_get_drvdata(dev);
+ 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..54d48932b833 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -60,8 +60,12 @@ struct mtk_drm_crtc {
struct device *mmsys_dev;
struct device *dma_dev;
struct mtk_mutex *mutex;
+ unsigned int ddp_comp_nr_ori;
+ unsigned int max_ddp_comp_nr;
unsigned int ddp_comp_nr;
struct mtk_ddp_comp **ddp_comp;
+ unsigned int conn_route_nr;
+ const struct mtk_drm_route *conn_routes;
/* lock for display hardware access */
struct mutex hw_lock;
@@ -649,6 +653,84 @@ static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
mtk_ddp_comp_disable_vblank(comp);
}
+static unsigned int mtk_drm_crtc_max_num_route_comp(struct mtk_drm_crtc *mtk_crtc)
+{
+ unsigned int max_num = 0;
+ unsigned int i;
+
+ if (!mtk_crtc->conn_route_nr)
+ return 0;
+
+ for (i = 0; i < mtk_crtc->conn_route_nr; i++)
+ max_num = max(mtk_crtc->conn_routes[i].route_len, max_num);
+
+ return max_num;
+}
+
+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 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;
+ unsigned int route_len = 0, route_index = 0;
+
+ if (!mtk_crtc->conn_route_nr)
+ 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;
+
+ for (i = 0; i < mtk_crtc->conn_route_nr; i++) {
+ route_len = conn_routes[i].route_len;
+ if (route_len > 0) {
+ comp_id = conn_routes[i].route_ddp[route_len - 1];
+ if (priv->comp_node[comp_id]) {
+ if ((1 << priv->ddp_comp[comp_id].encoder_index) == encoder_mask) {
+ route_index = i;
+ break;
+ }
+ }
+ }
+ }
+
+ for (i = 0; i < route_len; i++) {
+ struct mtk_ddp_comp *comp;
+ struct device_node *node;
+
+ comp_id = conn_routes[route_index].route_ddp[i];
+ 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 + i] = comp;
+ dev_dbg(dev, "Add comp_id: %d at path index %d\n",
+ comp->id, mtk_crtc->ddp_comp_nr_ori + i);
+ }
+
+ mtk_crtc->ddp_comp_nr = mtk_crtc->ddp_comp_nr_ori + route_len;
+ 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 +763,12 @@ 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 +974,8 @@ 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 conn_routes_num)
{
struct mtk_drm_private *priv = drm_dev->dev_private;
struct device *dev = drm_dev->dev;
@@ -898,6 +987,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
uint gamma_lut_size = 0;
struct drm_crtc *tmp;
int crtc_i = 0;
+ unsigned int route_len = 0, max_route_comp_num = 0;
if (!path)
return 0;
@@ -937,7 +1027,24 @@ 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 = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
+ mtk_crtc->ddp_comp_nr_ori = path_len;
+ if (conn_routes) {
+ unsigned int comp_id;
+
+ for (i = 0; i < conn_routes_num; i++) {
+ route_len = conn_routes[i].route_len;
+ if (route_len > 0) {
+ comp_id = conn_routes[i].route_ddp[route_len - 1];
+ mtk_ddp_comp_encoder_index_set(&priv->ddp_comp[comp_id]);
+ }
+ }
+
+ mtk_crtc->conn_route_nr = conn_routes_num;
+ mtk_crtc->conn_routes = conn_routes;
+ }
+ max_route_comp_num = mtk_drm_crtc_max_num_route_comp(mtk_crtc);
+ mtk_crtc->max_ddp_comp_nr = mtk_crtc->ddp_comp_nr + max_route_comp_num;
+ mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->max_ddp_comp_nr,
sizeof(*mtk_crtc->ddp_comp),
GFP_KERNEL);
if (!mtk_crtc->ddp_comp)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
index 3e9046993d09..672b9c7afee6 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 conn_routes_num);
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..fe20ce26b19f 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 +508,26 @@ 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 (mtk_drm_find_comp_in_ddp(dev, routes[i].route_ddp,
+ routes[i].route_len, ddp_comp))
+ 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 +559,12 @@ 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->conn_routes_num,
+ 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..1c1d670cfe41 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);
+ 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;
+ 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..d8c49614a107 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -185,7 +185,14 @@ static const unsigned int mt8188_mtk_ddp_main[] = {
DDP_COMPONENT_GAMMA,
DDP_COMPONENT_POSTMASK0,
DDP_COMPONENT_DITHER0,
- DDP_COMPONENT_DP_INTF0,
+};
+
+static const unsigned int mt8188_mtk_ddp_main_routes_0[] = {
+ DDP_COMPONENT_DP_INTF0
+};
+
+static const struct mtk_drm_route mt8188_mtk_ddp_main_routes[] = {
+ {0, ARRAY_SIZE(mt8188_mtk_ddp_main_routes_0), mt8188_mtk_ddp_main_routes_0},
};
static const unsigned int mt8192_mtk_ddp_main[] = {
@@ -287,6 +294,9 @@ 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,
+ .conn_routes_num = ARRAY_SIZE(mt8188_mtk_ddp_main_routes),
+ .mmsys_dev_num = 1,
};
static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
@@ -350,6 +360,7 @@ 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 +383,18 @@ 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) {
@@ -391,7 +411,7 @@ static bool mtk_drm_get_all_drm_priv(struct device *dev)
static bool mtk_drm_find_mmsys_comp(struct mtk_drm_private *private, int comp_id)
{
const struct mtk_mmsys_driver_data *drv_data = private->data;
- int i;
+ int i, j;
if (drv_data->main_path)
for (i = 0; i < drv_data->main_len; i++)
@@ -408,6 +428,12 @@ 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->conn_routes_num)
+ for (i = 0; i < drv_data->conn_routes_num; i++)
+ for (j = 0; j < drv_data->conn_routes[i].route_len; j++)
+ if (drv_data->conn_routes[i].route_ddp[j] == comp_id)
+ return true;
+
return false;
}
@@ -466,21 +492,23 @@ 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->conn_routes_num);
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..8dca68ea1b94 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -22,6 +22,12 @@ struct drm_fb_helper;
struct drm_property;
struct regmap;
+struct mtk_drm_route {
+ const unsigned int crtc_id;
+ const unsigned int route_len;
+ const unsigned int *route_ddp;
+};
+
struct mtk_mmsys_driver_data {
const unsigned int *main_path;
unsigned int main_len;
@@ -29,6 +35,8 @@ 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 conn_routes_num;
bool shadow_register;
unsigned int mmsys_id;
--
2.18.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0
2023-05-09 15:07 [PATCH v3 0/2] Add dynamic connector selection mechanism Jason-JH.Lin
2023-05-09 15:07 ` [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection Jason-JH.Lin
@ 2023-05-09 15:07 ` Jason-JH.Lin
2023-05-18 9:30 ` AngeloGioacchino Del Regno
1 sibling, 1 reply; 6+ messages in thread
From: Jason-JH.Lin @ 2023-05-09 15:07 UTC (permalink / raw)
To: Chun-Kuang Hu, AngeloGioacchino Del Regno, Alexandre Mergnat
Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
Jason-JH . Lin, Singo Chang, Nancy Lin, Shawn Sung, dri-devel,
linux-mediatek, linux-arm-kernel, linux-kernel,
Project_Global_Chrome_Upstream_Group, Nathan Lu
Add DSI as main display output for mt8188 vdosys0.
Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
---
drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 +
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
drivers/gpu/drm/mediatek/mtk_dsi.c | 9 +++++++++
4 files changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 72c57442f965..bf06ccb65652 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -48,6 +48,7 @@ int mtk_dpi_encoder_index(struct device *dev);
void mtk_dsi_ddp_start(struct device *dev);
void mtk_dsi_ddp_stop(struct device *dev);
+int mtk_dsi_encoder_index(struct device *dev);
int mtk_gamma_clk_enable(struct device *dev);
void mtk_gamma_clk_disable(struct device *dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index fe20ce26b19f..214233d36487 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -318,6 +318,7 @@ static const struct mtk_ddp_comp_funcs ddp_dsc = {
static const struct mtk_ddp_comp_funcs ddp_dsi = {
.start = mtk_dsi_ddp_start,
.stop = mtk_dsi_ddp_stop,
+ .encoder_index = mtk_dsi_encoder_index,
};
static const struct mtk_ddp_comp_funcs ddp_gamma = {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index d8c49614a107..7ea4dc87c558 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -191,8 +191,13 @@ static const unsigned int mt8188_mtk_ddp_main_routes_0[] = {
DDP_COMPONENT_DP_INTF0
};
+static const unsigned int mt8188_mtk_ddp_main_routes_1[] = {
+ DDP_COMPONENT_DSI0
+};
+
static const struct mtk_drm_route mt8188_mtk_ddp_main_routes[] = {
{0, ARRAY_SIZE(mt8188_mtk_ddp_main_routes_0), mt8188_mtk_ddp_main_routes_0},
+ {0, ARRAY_SIZE(mt8188_mtk_ddp_main_routes_1), mt8188_mtk_ddp_main_routes_1},
};
static const unsigned int mt8192_mtk_ddp_main[] = {
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 7d5250351193..f9d2d5447e2e 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -865,6 +865,15 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)
return ret;
}
+int mtk_dsi_encoder_index(struct device *dev)
+{
+ struct mtk_dsi *dsi = dev_get_drvdata(dev);
+ int encoder_index = drm_encoder_index(&dsi->encoder);
+
+ dev_dbg(dev, "encoder index:%d", encoder_index);
+ return encoder_index;
+}
+
static int mtk_dsi_bind(struct device *dev, struct device *master, void *data)
{
int ret;
--
2.18.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection
2023-05-09 15:07 ` [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection Jason-JH.Lin
@ 2023-05-18 9:29 ` AngeloGioacchino Del Regno
2023-06-01 14:53 ` Jason-JH Lin (林睿祥)
0 siblings, 1 reply; 6+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-05-18 9:29 UTC (permalink / raw)
To: Jason-JH.Lin, Chun-Kuang Hu, Alexandre Mergnat
Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
Singo Chang, Nancy Lin, Shawn Sung, dri-devel, linux-mediatek,
linux-arm-kernel, linux-kernel,
Project_Global_Chrome_Upstream_Group, Nathan Lu
Il 09/05/23 17:07, Jason-JH.Lin ha scritto:
> 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@mediatek.com>
> Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@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 | 111 +++++++++++++++++++-
> 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_ddp_comp.h | 8 ++
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 44 ++++++--
> drivers/gpu/drm/mediatek/mtk_drm_drv.h | 8 ++
> 8 files changed, 202 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 2254038519e1..72c57442f965 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);
> +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..765fc976e41f 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);
> }
>
> +int mtk_dpi_encoder_index(struct device *dev)
> +{
> + struct mtk_dpi *dpi = dev_get_drvdata(dev);
> + 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..54d48932b833 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -60,8 +60,12 @@ struct mtk_drm_crtc {
> struct device *mmsys_dev;
> struct device *dma_dev;
> struct mtk_mutex *mutex;
> + unsigned int ddp_comp_nr_ori;
> + unsigned int max_ddp_comp_nr;
> unsigned int ddp_comp_nr;
> struct mtk_ddp_comp **ddp_comp;
> + unsigned int conn_route_nr;
`num_conn_routes` is clearer.
> + const struct mtk_drm_route *conn_routes;
>
> /* lock for display hardware access */
> struct mutex hw_lock;
> @@ -649,6 +653,84 @@ static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
> mtk_ddp_comp_disable_vblank(comp);
> }
>
> +static unsigned int mtk_drm_crtc_max_num_route_comp(struct mtk_drm_crtc *mtk_crtc)
> +{
> + unsigned int max_num = 0;
> + unsigned int i;
> +
> + if (!mtk_crtc->conn_route_nr)
> + return 0;
> +
> + for (i = 0; i < mtk_crtc->conn_route_nr; i++)
> + max_num = max(mtk_crtc->conn_routes[i].route_len, max_num);
If we rename this to `num_routes` or `max_routes` it becomes a bit more
understandable.
> +
> + return max_num;
> +}
> +
> +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 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;
> + unsigned int route_len = 0, route_index = 0;
> +
> + if (!mtk_crtc->conn_route_nr)
> + 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;
> +
> + for (i = 0; i < mtk_crtc->conn_route_nr; i++) {
> + route_len = conn_routes[i].route_len;
> + if (route_len > 0) {
route_len is unsigned, it can never be < 0, so...
if (route_len) {
> + comp_id = conn_routes[i].route_ddp[route_len - 1];
> + if (priv->comp_node[comp_id]) {
> + if ((1 << priv->ddp_comp[comp_id].encoder_index) == encoder_mask) {
This is effectively BIT().
if (encoder_mask == BIT(priv->ddp_comp[comp_id].encoder_index)) {
P.S.: Are you sure that this shouldn't be (encoder_mask & BIT(encoder_index))??
> + route_index = i;
> + break;
> + }
> + }
> + }
> + }
> +
..snip..
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> index 3e9046993d09..672b9c7afee6 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 conn_routes_num);
num_conn_routes looks better.
> 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..fe20ce26b19f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
..snip..
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index febcaeef16a1..1c1d670cfe41 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);
> + int (*encoder_index)(struct device *dev);
drm_encoder_index returns an unsigned int type, so this one can never be negative:
please change the return value of this function to unsigned int type.
> };
>
> struct mtk_ddp_comp {
> @@ -87,6 +88,7 @@ struct mtk_ddp_comp {
> int irq;
> unsigned int id;
> const struct mtk_ddp_comp_funcs *funcs;
> + int encoder_index;
Same here, unsigned int.
> };
>
> static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)
Regards,
Angelo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0
2023-05-09 15:07 ` [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0 Jason-JH.Lin
@ 2023-05-18 9:30 ` AngeloGioacchino Del Regno
0 siblings, 0 replies; 6+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-05-18 9:30 UTC (permalink / raw)
To: Jason-JH.Lin, Chun-Kuang Hu, Alexandre Mergnat
Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
Singo Chang, Nancy Lin, Shawn Sung, dri-devel, linux-mediatek,
linux-arm-kernel, linux-kernel,
Project_Global_Chrome_Upstream_Group, Nathan Lu
Il 09/05/23 17:07, Jason-JH.Lin ha scritto:
> Add DSI as main display output for mt8188 vdosys0.
>
> Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
> ---
> drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 +
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
> drivers/gpu/drm/mediatek/mtk_dsi.c | 9 +++++++++
> 4 files changed, 16 insertions(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 72c57442f965..bf06ccb65652 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -48,6 +48,7 @@ int mtk_dpi_encoder_index(struct device *dev);
>
> void mtk_dsi_ddp_start(struct device *dev);
> void mtk_dsi_ddp_stop(struct device *dev);
> +int mtk_dsi_encoder_index(struct device *dev);
unsigned int mtk_dsi_encoder_index(...)
Regards,
Angelo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection
2023-05-18 9:29 ` AngeloGioacchino Del Regno
@ 2023-06-01 14:53 ` Jason-JH Lin (林睿祥)
0 siblings, 0 replies; 6+ messages in thread
From: Jason-JH Lin (林睿祥) @ 2023-06-01 14:53 UTC (permalink / raw)
To: amergnat, angelogioacchino.delregno, chunkuang.hu
Cc: linux-mediatek, Singo Chang (張興國),
Johnson Wang (王聖鑫),
Jason-ch Chen (陳建豪),
Shawn Sung (宋孝謙),
linux-kernel, Nancy Lin (林欣螢),
dri-devel, Project_Global_Chrome_Upstream_Group,
Nathan Lu (呂東霖),
linux-arm-kernel, matthias.bgg,
Rex-BC Chen (陳柏辰)
Hi Angelo,
Thanks for the review and sorry for the late reply.
On Thu, 2023-05-18 at 11:29 +0200, AngeloGioacchino Del Regno wrote:
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>
>
> Il 09/05/23 17:07, Jason-JH.Lin ha scritto:
> > 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@mediatek.com>
> > Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
> > Signed-off-by: Jason-JH.Lin <jason-jh.lin@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 | 111
> > +++++++++++++++++++-
> > 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_ddp_comp.h | 8 ++
> > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 44 ++++++--
> > drivers/gpu/drm/mediatek/mtk_drm_drv.h | 8 ++
> > 8 files changed, 202 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > index 2254038519e1..72c57442f965 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);
> > +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..765fc976e41f 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);
> > }
> >
> > +int mtk_dpi_encoder_index(struct device *dev)
> > +{
> > + struct mtk_dpi *dpi = dev_get_drvdata(dev);
> > + 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..54d48932b833 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > @@ -60,8 +60,12 @@ struct mtk_drm_crtc {
> > struct device *mmsys_dev;
> > struct device *dma_dev;
> > struct mtk_mutex *mutex;
> > + unsigned int ddp_comp_nr_ori;
> > + unsigned int max_ddp_comp_nr;
> > unsigned int ddp_comp_nr;
> > struct mtk_ddp_comp **ddp_comp;
> > + unsigned int conn_route_nr;
>
> `num_conn_routes` is clearer.
>
OK, I'll modify it.
> > + const struct mtk_drm_route *conn_routes;
> >
> > /* lock for display hardware access */
> > struct mutex hw_lock;
> > @@ -649,6 +653,84 @@ static void mtk_drm_crtc_disable_vblank(struct
> > drm_crtc *crtc)
> > mtk_ddp_comp_disable_vblank(comp);
> > }
> >
> > +static unsigned int mtk_drm_crtc_max_num_route_comp(struct
> > mtk_drm_crtc *mtk_crtc)
> > +{
> > + unsigned int max_num = 0;
> > + unsigned int i;
> > +
> > + if (!mtk_crtc->conn_route_nr)
> > + return 0;
> > +
> > + for (i = 0; i < mtk_crtc->conn_route_nr; i++)
> > + max_num = max(mtk_crtc->conn_routes[i].route_len,
> > max_num);
>
> If we rename this to `num_routes` or `max_routes` it becomes a bit
> more
> understandable.
>
OK, I'll modify it.
> > +
> > + return max_num;
> > +}
> > +
> > +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 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;
> > + unsigned int route_len = 0, route_index = 0;
> > +
> > + if (!mtk_crtc->conn_route_nr)
> > + 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;
> > +
> > + for (i = 0; i < mtk_crtc->conn_route_nr; i++) {
> > + route_len = conn_routes[i].route_len;
> > + if (route_len > 0) {
>
> route_len is unsigned, it can never be < 0, so...
>
> if (route_len) {
>
It's better to use unsigned int.
I'll modify it.
> > + comp_id = conn_routes[i].route_ddp[route_len
> > - 1];
> > + if (priv->comp_node[comp_id]) {
> > + if ((1 << priv-
> > >ddp_comp[comp_id].encoder_index) == encoder_mask) {
>
> This is effectively BIT().
>
> if (encoder_mask == BIT(priv->ddp_comp[comp_id].encoder_index)) {
>
> P.S.: Are you sure that this shouldn't be (encoder_mask &
> BIT(encoder_index))??
>
Yes, encoder_index should be bitwise. I'll fixed it.
> > + route_index = i;
> > + break;
> > + }
> > + }
> > + }
> > + }
> > +
>
> ..snip..
>
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> > b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> > index 3e9046993d09..672b9c7afee6 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 conn_routes_num);
>
> num_conn_routes looks better.
OK, I'll modify it.
>
> > 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..fe20ce26b19f 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
>
> ..snip..
>
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > index febcaeef16a1..1c1d670cfe41 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);
> > + int (*encoder_index)(struct device *dev);
>
> drm_encoder_index returns an unsigned int type, so this one can never
> be negative:
> please change the return value of this function to unsigned int type.
>
OK, I'll modify it.
> > };
> >
> > struct mtk_ddp_comp {
> > @@ -87,6 +88,7 @@ struct mtk_ddp_comp {
> > int irq;
> > unsigned int id;
> > const struct mtk_ddp_comp_funcs *funcs;
> > + int encoder_index;
>
> Same here, unsigned int.
>
OK, I'll modify it.
Regards,
Jason-JH.Lin
> > };
> >
> > static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp
> > *comp)
>
> Regards,
> Angelo
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-06-01 14:54 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-05-09 15:07 [PATCH v3 0/2] Add dynamic connector selection mechanism Jason-JH.Lin
2023-05-09 15:07 ` [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection Jason-JH.Lin
2023-05-18 9:29 ` AngeloGioacchino Del Regno
2023-06-01 14:53 ` Jason-JH Lin (林睿祥)
2023-05-09 15:07 ` [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0 Jason-JH.Lin
2023-05-18 9:30 ` AngeloGioacchino Del Regno
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).