diff options
Diffstat (limited to 'drivers/gpu/drm/display')
| -rw-r--r-- | drivers/gpu/drm/display/Kconfig | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_helper.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_mst_topology.c | 26 |
3 files changed, 34 insertions, 26 deletions
diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig index a38962a556c2..864a6488bfdf 100644 --- a/drivers/gpu/drm/display/Kconfig +++ b/drivers/gpu/drm/display/Kconfig @@ -1,23 +1,20 @@ # SPDX-License-Identifier: MIT config DRM_DISPLAY_HELPER - tristate "DRM Display Helpers" + tristate depends on DRM - default y help DRM helpers for display adapters. config DRM_DISPLAY_DP_AUX_BUS - tristate "DRM DisplayPort AUX bus support" + tristate depends on DRM depends on OF || COMPILE_TEST - default y config DRM_DISPLAY_DP_AUX_CEC bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" - depends on DRM - depends on DRM_DISPLAY_HELPER - depends on DRM_DISPLAY_DP_HELPER + depends on DRM && DRM_DISPLAY_HELPER + select DRM_DISPLAY_DP_HELPER select CEC_CORE help Choose this option if you want to enable HDMI CEC support for @@ -27,26 +24,23 @@ config DRM_DISPLAY_DP_AUX_CEC that do support this they often do not hook up the CEC pin. config DRM_DISPLAY_DP_AUX_CHARDEV - bool "DRM DisplayPort AUX Interface" - depends on DRM - depends on DRM_DISPLAY_HELPER - depends on DRM_DISPLAY_DP_HELPER + bool "DRM DP AUX Interface" + depends on DRM && DRM_DISPLAY_HELPER + select DRM_DISPLAY_DP_HELPER help Choose this option to enable a /dev/drm_dp_auxN node that allows to read and write values to arbitrary DPCD registers on the DP aux channel. config DRM_DISPLAY_DP_HELPER - bool "DRM DisplayPort Helpers" + bool depends on DRM_DISPLAY_HELPER - select DRM_KMS_HELPER - default y help DRM display helpers for DisplayPort. config DRM_DISPLAY_DP_TUNNEL - bool "DRM DisplayPort tunnels support" - depends on DRM_DISPLAY_DP_HELPER + bool + select DRM_DISPLAY_DP_HELPER help Enable support for DisplayPort tunnels. This allows drivers to use DP tunnel features like the Bandwidth Allocation mode to maximize the @@ -66,15 +60,13 @@ config DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG If in doubt, say "N". config DRM_DISPLAY_HDCP_HELPER - bool "DRM HDCD Helpers" + bool depends on DRM_DISPLAY_HELPER - default y help DRM display helpers for HDCP. config DRM_DISPLAY_HDMI_HELPER - bool "DRM HDMI Helpers" + bool depends on DRM_DISPLAY_HELPER - default y help DRM display helpers for HDMI. diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index 023907da9858..79a615667aab 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -2281,6 +2281,8 @@ static const struct dpcd_quirk dpcd_quirk_list[] = { { OUI(0x90, 0xCC, 0x24), DEVICE_ID_ANY, true, BIT(DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) }, /* Synaptics DP1.4 MST hubs require DSC for some modes on which it applies HBLANK expansion. */ { OUI(0x90, 0xCC, 0x24), DEVICE_ID_ANY, true, BIT(DP_DPCD_QUIRK_HBLANK_EXPANSION_REQUIRES_DSC) }, + /* MediaTek panels (at least in U3224KBA) require DSC for modes with a short HBLANK on UHBR links. */ + { OUI(0x00, 0x0C, 0xE7), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_HBLANK_EXPANSION_REQUIRES_DSC) }, /* Apple MacBookPro 2017 15 inch eDP Retina panel reports too low DP_MAX_LINK_RATE */ { OUI(0x00, 0x10, 0xfa), DEVICE_ID(101, 68, 21, 101, 98, 97), false, BIT(DP_DPCD_QUIRK_CAN_DO_MAX_LINK_RATE_3_24_GBPS) }, }; diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c index c193be3577f7..7f8e1cfbe19d 100644 --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c @@ -2274,7 +2274,7 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb, if (port->pdt != DP_PEER_DEVICE_NONE && drm_dp_mst_is_end_device(port->pdt, port->mcs) && - port->port_num >= DP_MST_LOGICAL_PORT_0) + drm_dp_mst_port_is_logical(port)) port->cached_edid = drm_edid_read_ddc(port->connector, &port->aux.ddc); @@ -3421,7 +3421,6 @@ EXPORT_SYMBOL(drm_dp_remove_payload_part2); /** * drm_dp_add_payload_part2() - Execute payload update part 2 * @mgr: Manager to use. - * @state: The global atomic state * @payload: The payload to update * * If @payload was successfully assigned a starting time slot by drm_dp_add_payload_part1(), this @@ -3430,14 +3429,13 @@ EXPORT_SYMBOL(drm_dp_remove_payload_part2); * Returns: 0 on success, negative error code on failure. */ int drm_dp_add_payload_part2(struct drm_dp_mst_topology_mgr *mgr, - struct drm_atomic_state *state, struct drm_dp_mst_atomic_payload *payload) { int ret = 0; /* Skip failed payloads */ if (payload->payload_allocation_status != DRM_DP_MST_PAYLOAD_ALLOCATION_DFP) { - drm_dbg_kms(state->dev, "Part 1 of payload creation for %s failed, skipping part 2\n", + drm_dbg_kms(mgr->dev, "Part 1 of payload creation for %s failed, skipping part 2\n", payload->port->connector->name); return -EIO; } @@ -4219,7 +4217,7 @@ drm_dp_mst_detect_port(struct drm_connector *connector, case DP_PEER_DEVICE_SST_SINK: ret = connector_status_connected; /* for logical ports - cache the EDID */ - if (port->port_num >= DP_MST_LOGICAL_PORT_0 && !port->cached_edid) + if (drm_dp_mst_port_is_logical(port) && !port->cached_edid) port->cached_edid = drm_edid_read_ddc(connector, &port->aux.ddc); break; case DP_PEER_DEVICE_DP_LEGACY_CONV: @@ -5983,7 +5981,7 @@ static bool drm_dp_mst_is_virtual_dpcd(struct drm_dp_mst_port *port) return false; /* Virtual DP Sink (Internal Display Panel) */ - if (port->port_num >= 8) + if (drm_dp_mst_port_is_logical(port)) return true; /* DP-to-HDMI Protocol Converter */ @@ -6011,6 +6009,22 @@ static bool drm_dp_mst_is_virtual_dpcd(struct drm_dp_mst_port *port) } /** + * drm_dp_mst_aux_for_parent() - Get the AUX device for an MST port's parent + * @port: MST port whose parent's AUX device is returned + * + * Return the AUX device for @port's parent or NULL if port's parent is the + * root port. + */ +struct drm_dp_aux *drm_dp_mst_aux_for_parent(struct drm_dp_mst_port *port) +{ + if (!port->parent || !port->parent->port_parent) + return NULL; + + return &port->parent->port_parent->aux; +} +EXPORT_SYMBOL(drm_dp_mst_aux_for_parent); + +/** * drm_dp_mst_dsc_aux_for_port() - Find the correct aux for DSC * @port: The port to check. A leaf of the MST tree with an attached display. * |