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Allocate the state so it can remain opaque within its module. Follow-up changes will move link capability helpers and state from intel_dp.c and intel_dp_link_training.c to the new module and state. Signed-off-by: Imre Deak --- drivers/gpu/drm/i915/Makefile | 1 + .../drm/i915/display/intel_display_types.h | 2 + drivers/gpu/drm/i915/display/intel_dp.c | 9 ++++ .../gpu/drm/i915/display/intel_dp_link_caps.c | 47 +++++++++++++++++++ .../gpu/drm/i915/display/intel_dp_link_caps.h | 12 +++++ drivers/gpu/drm/xe/Makefile | 1 + 6 files changed, 72 insertions(+) create mode 100644 drivers/gpu/drm/i915/display/intel_dp_link_caps.c create mode 100644 drivers/gpu/drm/i915/display/intel_dp_link_caps.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index fa632f4e505c9..0c04c6d9bb13e 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -355,6 +355,7 @@ i915-y += \ display/intel_dp_aux.o \ display/intel_dp_aux_backlight.o \ display/intel_dp_hdcp.o \ + display/intel_dp_link_caps.o \ display/intel_dp_link_training.o \ display/intel_dp_mst.o \ display/intel_dp_test.o \ diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 28a8a149157e0..d11686ce2963d 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -58,6 +58,7 @@ struct cec_notifier; struct drm_printer; struct intel_connector; struct intel_ddi_buf_trans; +struct intel_dp_link_caps; struct intel_dp_link_training; struct intel_fbc; struct intel_global_objs_state; @@ -1858,6 +1859,7 @@ struct intel_dp { int force_lane_count; int force_rate; struct intel_dp_link_training *training; + struct intel_dp_link_caps *caps; } link; bool reset_link_params; int mso_link_count; diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 4f016adef93be..e63e341aa5c8d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -71,6 +71,7 @@ #include "intel_dp.h" #include "intel_dp_aux.h" #include "intel_dp_hdcp.h" +#include "intel_dp_link_caps.h" #include "intel_dp_link_training.h" #include "intel_dp_mst.h" #include "intel_dp_test.h" @@ -7357,6 +7358,13 @@ int intel_dp_link_init(struct intel_dp *intel_dp) if (!intel_dp->link.training) return -ENOMEM; + intel_dp->link.caps = intel_dp_link_caps_init(intel_dp); + if (!intel_dp->link.caps) { + intel_dp_link_training_cleanup(intel_dp->link.training); + + return -ENOMEM; + } + return 0; } @@ -7368,5 +7376,6 @@ int intel_dp_link_init(struct intel_dp *intel_dp) */ void intel_dp_link_cleanup(struct intel_dp *intel_dp) { + intel_dp_link_caps_cleanup(intel_dp->link.caps); intel_dp_link_training_cleanup(intel_dp->link.training); } diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c new file mode 100644 index 0000000000000..335382d193475 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2026 Intel Corporation + */ + +#include + +#include "intel_dp_link_caps.h" + +struct intel_dp_link_caps { + struct intel_dp *dp; +}; + +/** + * intel_dp_link_caps_init - allocate and initialize link caps state + * @intel_dp: DP encoder state + * + * Allocate and initialize the link capabilities state for @intel_dp and + * the connectors attached to it. + * + * Return: + * - Pointer to the newly allocated link capabilities state. + * - %NULL if allocation fails. + */ +struct intel_dp_link_caps *intel_dp_link_caps_init(struct intel_dp *intel_dp) +{ + struct intel_dp_link_caps *link_caps; + + link_caps = kzalloc_obj(*link_caps); + if (!link_caps) + return NULL; + + link_caps->dp = intel_dp; + + return link_caps; +} + +/** + * intel_dp_link_caps_cleanup - free link caps state + * @link_caps: link capabilities state to free + * + * Free @link_caps. + */ +void intel_dp_link_caps_cleanup(struct intel_dp_link_caps *link_caps) +{ + kfree(link_caps); +} diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_caps.h b/drivers/gpu/drm/i915/display/intel_dp_link_caps.h new file mode 100644 index 0000000000000..050b279463d6e --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: MIT */ +/* Copyright © 2026 Intel Corporation */ + +#ifndef __INTEL_DP_LINK_CAPS_H__ +#define __INTEL_DP_LINK_CAPS_H__ + +struct intel_dp; + +struct intel_dp_link_caps *intel_dp_link_caps_init(struct intel_dp *intel_dp); +void intel_dp_link_caps_cleanup(struct intel_dp_link_caps *link_caps); + +#endif /* __INTEL_DP_LINK_CAPS_H__ */ diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile index 95666f950a6fc..9450d487123a3 100644 --- a/drivers/gpu/drm/xe/Makefile +++ b/drivers/gpu/drm/xe/Makefile @@ -276,6 +276,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \ i915-display/intel_dp_aux.o \ i915-display/intel_dp_aux_backlight.o \ i915-display/intel_dp_hdcp.o \ + i915-display/intel_dp_link_caps.o \ i915-display/intel_dp_link_training.o \ i915-display/intel_dp_mst.o \ i915-display/intel_dp_test.o \ -- 2.49.1