Replace the manual connector implementation and registration in the DP encoder with the DRM connector bridge helper. This removes boilerplate code and simplifies the driver.
Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/xlnx/zynqmp_dp.c | 90 +---------------------------- drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 26 ++++++++- drivers/gpu/drm/xlnx/zynqmp_dpsub.h | 2 + 3 files changed, 28 insertions(+), 90 deletions(-)
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 244628497e98..eb05feef5d30 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -10,7 +10,6 @@ */
#include <drm/drm_atomic_helper.h> -#include <drm/drm_connector.h> #include <drm/drm_crtc.h> #include <drm/drm_device.h> #include <drm/drm_dp_helper.h> @@ -274,7 +273,6 @@ struct zynqmp_dp_config {
/** * struct zynqmp_dp - Xilinx DisplayPort core - * @connector: the drm connector structure * @dev: device structure * @dpsub: Display subsystem * @drm: DRM core @@ -296,7 +294,6 @@ struct zynqmp_dp_config { * @train_set: set of training data */ struct zynqmp_dp { - struct drm_connector connector; struct device *dev; struct zynqmp_dpsub *dpsub; struct drm_device *drm; @@ -321,11 +318,6 @@ struct zynqmp_dp { u8 train_set[ZYNQMP_DP_MAX_LANES]; };
-static inline struct zynqmp_dp *connector_to_dp(struct drm_connector *connector) -{ - return container_of(connector, struct zynqmp_dp, connector); -} - static inline struct zynqmp_dp *bridge_to_dp(struct drm_bridge *bridge) { return container_of(bridge, struct zynqmp_dp, bridge); @@ -1284,33 +1276,15 @@ static void zynqmp_dp_encoder_mode_set_stream(struct zynqmp_dp *dp, * DRM Bridge */
-static const struct drm_connector_funcs zynqmp_dp_connector_funcs; -static const struct drm_connector_helper_funcs zynqmp_dp_connector_helper_funcs; - static int zynqmp_dp_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { struct zynqmp_dp *dp = bridge_to_dp(bridge); - struct drm_connector *connector = &dp->connector; int ret;
- /* Create the DRM connector. */ - connector->polled = DRM_CONNECTOR_POLL_HPD; - ret = drm_connector_init(dp->drm, connector, - &zynqmp_dp_connector_funcs, - DRM_MODE_CONNECTOR_DisplayPort); - if (ret) { - dev_err(dp->dev, "failed to create the DRM connector\n"); - return ret; - } - - drm_connector_helper_add(connector, &zynqmp_dp_connector_helper_funcs); - drm_connector_register(connector); - drm_connector_attach_encoder(connector, bridge->encoder); - if (dp->next_bridge) { ret = drm_bridge_attach(bridge->encoder, dp->next_bridge, - bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); + bridge, flags); if (ret < 0) return ret; } @@ -1531,68 +1505,6 @@ static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = { .get_edid = zynqmp_dp_bridge_get_edid, };
-/* ----------------------------------------------------------------------------- - * DRM Connector - */ - -static enum drm_connector_status -zynqmp_dp_connector_detect(struct drm_connector *connector, bool force) -{ - struct zynqmp_dp *dp = connector_to_dp(connector); - - return zynqmp_dp_bridge_detect(&dp->bridge); -} - -static int zynqmp_dp_connector_get_modes(struct drm_connector *connector) -{ - struct zynqmp_dp *dp = connector_to_dp(connector); - struct edid *edid; - int ret; - - edid = zynqmp_dp_bridge_get_edid(&dp->bridge, connector); - if (!edid) - return 0; - - drm_connector_update_edid_property(connector, edid); - ret = drm_add_edid_modes(connector, edid); - kfree(edid); - - return ret; -} - -static struct drm_encoder * -zynqmp_dp_connector_best_encoder(struct drm_connector *connector) -{ - struct zynqmp_dp *dp = connector_to_dp(connector); - - return &dp->dpsub->encoder; -} - -static int zynqmp_dp_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct zynqmp_dp *dp = connector_to_dp(connector); - - return zynqmp_dp_bridge_mode_valid(&dp->bridge, &connector->display_info, - mode); -} - -static const struct drm_connector_funcs zynqmp_dp_connector_funcs = { - .detect = zynqmp_dp_connector_detect, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = drm_connector_cleanup, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, - .reset = drm_atomic_helper_connector_reset, -}; - -static const struct drm_connector_helper_funcs -zynqmp_dp_connector_helper_funcs = { - .get_modes = zynqmp_dp_connector_get_modes, - .best_encoder = zynqmp_dp_connector_best_encoder, - .mode_valid = zynqmp_dp_connector_mode_valid, -}; - /* ----------------------------------------------------------------------------- * Interrupt Handling */ diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 3a3a85821e99..a7a80c435fa9 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -18,6 +18,8 @@
#include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> +#include <drm/drm_bridge_connector.h> +#include <drm/drm_connector.h> #include <drm/drm_device.h> #include <drm/drm_drv.h> #include <drm/drm_fb_helper.h> @@ -96,6 +98,7 @@ static const struct drm_driver zynqmp_dpsub_drm_driver = { static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub) { struct drm_encoder *encoder = &dpsub->encoder; + struct drm_connector *connector; struct drm_device *drm = &dpsub->drm; int ret;
@@ -132,12 +135,30 @@ static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub) encoder->possible_crtcs |= zynqmp_disp_get_crtc_mask(dpsub->disp); drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_NONE);
- ret = drm_bridge_attach(encoder, dpsub->bridge, NULL, 0); + ret = drm_bridge_attach(encoder, dpsub->bridge, NULL, + DRM_BRIDGE_ATTACH_NO_CONNECTOR); if (ret) { dev_err(dpsub->dev, "failed to attach bridge to encoder\n"); goto err_poll_fini; }
+ /* Create the connector for the chain of bridges. */ + connector = drm_bridge_connector_init(drm, encoder); + if (IS_ERR(connector)) { + dev_err(dpsub->dev, "failed to created connector\n"); + ret = PTR_ERR(connector); + goto err_poll_fini; + } + + ret = drm_connector_attach_encoder(connector, encoder); + if (ret < 0) { + dev_err(dpsub->dev, "failed to attach connector to encoder\n"); + goto err_poll_fini; + } + + drm_bridge_connector_enable_hpd(connector); + dpsub->connector = connector; + /* Reset all components and register the DRM device. */ drm_mode_config_reset(drm);
@@ -260,6 +281,9 @@ static int zynqmp_dpsub_remove(struct platform_device *pdev) struct zynqmp_dpsub *dpsub = platform_get_drvdata(pdev); struct drm_device *drm = &dpsub->drm;
+ if (dpsub->connector) + drm_bridge_connector_disable_hpd(dpsub->connector); + drm_dev_unregister(drm); drm_atomic_helper_shutdown(drm); drm_kms_helper_poll_fini(drm); diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.h b/drivers/gpu/drm/xlnx/zynqmp_dpsub.h index 66820bbc4507..82a7ce136c2c 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.h +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.h @@ -34,6 +34,7 @@ enum zynqmp_dpsub_format { * @dev: The physical device * @apb_clk: The APB clock * @encoder: The dummy DRM encoder + * @connector: The DP connector * @bridge: The DP encoder bridge * @disp: The display controller * @dp: The DisplayPort controller @@ -46,6 +47,7 @@ struct zynqmp_dpsub { struct clk *apb_clk;
struct drm_encoder encoder; + struct drm_connector *connector; struct drm_bridge *bridge;
struct zynqmp_disp *disp;