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drm/panel: move to a new module

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Work is in progress for every drm_panel to embed a drm_bridge, which will
make the drm_panel code (currently in the drm module) depend on the
drm_kms_helper module.

To avoid the main drm module to depend on other drm modules and create a
depepdency loop, move drm_panel.o to a new drm_panel module, so the module
dependency will be drm_panel -> drm_kms_helper instead.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260916-drm-bridge-every-panel-v3-3-83afb4f1a707@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
This commit is contained in:
Luca Ceresoli 2026-09-16 15:45:27 +02:00
parent 5dcf3fed0c
commit 667746d163
3 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/Makefile
View File

@ -79,7 +79,6 @@ drm-$(CONFIG_DRM_CLIENT) += \
drm_client_modeset.o \
drm_client_sysrq.o
drm-$(CONFIG_COMPAT) += drm_ioc32.o
drm-$(CONFIG_DRM_PANEL) += drm_panel.o
drm-$(CONFIG_OF) += drm_of.o
drm-$(CONFIG_PCI) += drm_pci.o
drm-$(CONFIG_DEBUG_FS) += \
@ -95,6 +94,7 @@ drm-$(CONFIG_DRM_DRAW) += drm_draw.o
drm-$(CONFIG_DRM_RAS) += drm_ras.o drm_ras_nl.o drm_ras_genl_family.o
obj-$(CONFIG_DRM) += drm.o
obj-$(CONFIG_DRM_PANEL) += drm_panel.o
obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += drm_panel_orientation_quirks.o
obj-$(CONFIG_DRM_PANEL_BACKLIGHT_QUIRKS) += drm_panel_backlight_quirks.o

2
drivers/gpu/drm/panel/Kconfig
View File

@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
config DRM_PANEL
bool
tristate
depends on DRM
help
Panel registration and lookup framework.

4
include/drm/drm_panel.h
View File

@ -336,7 +336,7 @@ void drm_panel_disable(struct drm_panel *panel);
int drm_panel_get_modes(struct drm_panel *panel, struct drm_connector *connector);
#if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL)
#if defined(CONFIG_OF) && IS_ENABLED(CONFIG_DRM_PANEL)
struct drm_panel *of_drm_find_panel(const struct device_node *np);
int drm_of_find_panel_or_bridge(const struct device_node *np,
int port, int endpoint,
@ -357,7 +357,7 @@ static inline int drm_of_find_panel_or_bridge(const struct device_node *np,
}
#endif
#if defined(CONFIG_DRM_PANEL)
#if IS_ENABLED(CONFIG_DRM_PANEL)
bool drm_is_panel_follower(struct device *dev);
int drm_panel_add_follower(struct device *follower_dev,
struct drm_panel_follower *follower);