Use the imx_legacy bridge driver instead of handlign display modes via
the connector node.
All existing usecases already support attaching using
the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag, while the imx_legacy bridge
doesn't support creating connector at all. Switch to
drm_bridge_connector at the same time.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/imx/ipuv3/parallel-display.c | 100 ++++++---------------------
1 file changed, 20 insertions(+), 80 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3/parallel-display.c b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
index 9ac2a94fa62b..70f62e89622e 100644
--- a/drivers/gpu/drm/imx/ipuv3/parallel-display.c
+++ b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
@@ -12,19 +12,18 @@
#include <linux/platform_device.h>
#include <linux/videodev2.h>
-#include <video/of_display_timing.h>
-
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
+#include <drm/drm_bridge_connector.h>
#include <drm/drm_managed.h>
#include <drm/drm_of.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_simple_kms_helper.h>
+#include <drm/bridge/imx.h>
#include "imx-drm.h"
struct imx_parallel_display_encoder {
- struct drm_connector connector;
struct drm_encoder encoder;
struct drm_bridge bridge;
struct imx_parallel_display *pd;
@@ -33,51 +32,14 @@ struct imx_parallel_display_encoder {
struct imx_parallel_display {
struct device *dev;
u32 bus_format;
- u32 bus_flags;
- struct drm_display_mode mode;
struct drm_bridge *next_bridge;
};
-static inline struct imx_parallel_display *con_to_imxpd(struct drm_connector *c)
-{
- return container_of(c, struct imx_parallel_display_encoder, connector)->pd;
-}
-
static inline struct imx_parallel_display *bridge_to_imxpd(struct drm_bridge *b)
{
return container_of(b, struct imx_parallel_display_encoder, bridge)->pd;
}
-static int imx_pd_connector_get_modes(struct drm_connector *connector)
-{
- struct imx_parallel_display *imxpd = con_to_imxpd(connector);
- struct device_node *np = imxpd->dev->of_node;
- int num_modes;
-
- if (np) {
- struct drm_display_mode *mode = drm_mode_create(connector->dev);
- int ret;
-
- if (!mode)
- return 0;
-
- ret = of_get_drm_display_mode(np, &imxpd->mode,
- &imxpd->bus_flags,
- OF_USE_NATIVE_MODE);
- if (ret) {
- drm_mode_destroy(connector->dev, mode);
- return 0;
- }
-
- drm_mode_copy(mode, &imxpd->mode);
- mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
- drm_mode_probed_add(connector, mode);
- num_modes++;
- }
-
- return num_modes;
-}
-
static const u32 imx_pd_bus_fmts[] = {
MEDIA_BUS_FMT_RGB888_1X24,
MEDIA_BUS_FMT_BGR888_1X24,
@@ -171,7 +133,6 @@ static int imx_pd_bridge_atomic_check(struct drm_bridge *bridge,
{
struct imx_crtc_state *imx_crtc_state = to_imx_crtc_state(crtc_state);
struct drm_display_info *di = &conn_state->connector->display_info;
- struct imx_parallel_display *imxpd = bridge_to_imxpd(bridge);
struct drm_bridge_state *next_bridge_state = NULL;
struct drm_bridge *next_bridge;
u32 bus_flags, bus_fmt;
@@ -183,10 +144,8 @@ static int imx_pd_bridge_atomic_check(struct drm_bridge *bridge,
if (next_bridge_state)
bus_flags = next_bridge_state->input_bus_cfg.flags;
- else if (di->num_bus_formats)
- bus_flags = di->bus_flags;
else
- bus_flags = imxpd->bus_flags;
+ bus_flags = di->bus_flags;
bus_fmt = bridge_state->input_bus_cfg.format;
if (!imx_pd_format_supported(bus_fmt))
@@ -202,19 +161,16 @@ static int imx_pd_bridge_atomic_check(struct drm_bridge *bridge,
return 0;
}
-static const struct drm_connector_funcs imx_pd_connector_funcs = {
- .fill_modes = drm_helper_probe_single_connector_modes,
- .destroy = imx_drm_connector_destroy,
- .reset = drm_atomic_helper_connector_reset,
- .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
+static int imx_pd_bridge_attach(struct drm_bridge *bridge,
+ enum drm_bridge_attach_flags flags)
+{
+ struct imx_parallel_display *imxpd = bridge_to_imxpd(bridge);
-static const struct drm_connector_helper_funcs imx_pd_connector_helper_funcs = {
- .get_modes = imx_pd_connector_get_modes,
-};
+ return drm_bridge_attach(bridge->encoder, imxpd->next_bridge, bridge, flags);
+}
static const struct drm_bridge_funcs imx_pd_bridge_funcs = {
+ .attach = imx_pd_bridge_attach,
.atomic_reset = drm_atomic_helper_bridge_reset,
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
@@ -239,7 +195,6 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
return PTR_ERR(imxpd_encoder);
imxpd_encoder->pd = imxpd;
- connector = &imxpd_encoder->connector;
encoder = &imxpd_encoder->encoder;
bridge = &imxpd_encoder->bridge;
@@ -247,28 +202,14 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
if (ret)
return ret;
- /* set the connector's dpms to OFF so that
- * drm_helper_connector_dpms() won't return
- * immediately since the current state is ON
- * at this point.
- */
- connector->dpms = DRM_MODE_DPMS_OFF;
-
bridge->funcs = &imx_pd_bridge_funcs;
- drm_bridge_attach(encoder, bridge, NULL, 0);
-
- if (imxpd->next_bridge) {
- ret = drm_bridge_attach(encoder, imxpd->next_bridge, bridge, 0);
- if (ret < 0)
- return ret;
- } else {
- drm_connector_helper_add(connector,
- &imx_pd_connector_helper_funcs);
- drm_connector_init(drm, connector, &imx_pd_connector_funcs,
- DRM_MODE_CONNECTOR_DPI);
-
- drm_connector_attach_encoder(connector, encoder);
- }
+ drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+
+ connector = drm_bridge_connector_init(drm, encoder);
+ if (IS_ERR(connector))
+ return PTR_ERR(connector);
+
+ drm_connector_attach_encoder(connector, encoder);
return 0;
}
@@ -292,12 +233,11 @@ static int imx_pd_probe(struct platform_device *pdev)
/* port@1 is the output port */
imxpd->next_bridge = devm_drm_of_get_bridge(dev, np, 1, 0);
+ if (imxpd->next_bridge == ERR_PTR(-ENODEV))
+ imxpd->next_bridge = devm_imx_drm_legacy_bridge(dev, np, DRM_MODE_CONNECTOR_DPI);
if (IS_ERR(imxpd->next_bridge)) {
ret = PTR_ERR(imxpd->next_bridge);
- if (ret != -ENODEV)
- return ret;
-
- imxpd->next_bridge = NULL;
+ return ret;
}
ret = of_property_read_string(np, "interface-pix-fmt", &fmt);
--
2.39.2
