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drm/atomic-helper: Unexport drm_atomic_helper_best_encoder

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It's the default. The exported version was kinda a transition state,
before we made this the default.

To stop new atomic drivers from using it (instead of just relying on
the default) let's unexport it.

v2: rename the default implementation to a more fitting name and add a
comment (Laurent)

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: David Airlie <airlied@linux.ie>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Pierre-Hugues Husson <phh@phh.me>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181004202446.22905-3-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2018-10-04 22:24:27 +02:00
parent 2b4c1c0512
commit 297e30b5d9
6 changed files with 13 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
View file

@ -1957,7 +1957,6 @@ static const struct drm_connector_funcs dw_hdmi_connector_funcs = {
static const struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
.get_modes = dw_hdmi_connector_get_modes,
.best_encoder = drm_atomic_helper_best_encoder,
};
static int dw_hdmi_bridge_attach(struct drm_bridge *bridge)

32
drivers/gpu/drm/drm_atomic_helper.c
View file

@ -92,6 +92,17 @@ drm_atomic_helper_plane_changed(struct drm_atomic_state *state,
}
}
/*
* For connectors that support multiple encoders, either the
* .atomic_best_encoder() or .best_encoder() operation must be implemented.
*/
static struct drm_encoder *
pick_single_encoder_for_connector(struct drm_connector *connector)
{
WARN_ON(connector->encoder_ids[1]);
return drm_encoder_find(connector->dev, NULL, connector->encoder_ids[0]);
}
static int handle_conflicting_encoders(struct drm_atomic_state *state,
bool disable_conflicting_encoders)
{
@ -119,7 +130,7 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state,
else if (funcs->best_encoder)
new_encoder = funcs->best_encoder(connector);
else
new_encoder = drm_atomic_helper_best_encoder(connector);
new_encoder = pick_single_encoder_for_connector(connector);
if (new_encoder) {
if (encoder_mask & drm_encoder_mask(new_encoder)) {
@ -316,7 +327,7 @@ update_connector_routing(struct drm_atomic_state *state,
else if (funcs->best_encoder)
new_encoder = funcs->best_encoder(connector);
else
new_encoder = drm_atomic_helper_best_encoder(connector);
new_encoder = pick_single_encoder_for_connector(connector);
if (!new_encoder) {
DRM_DEBUG_ATOMIC("No suitable encoder found for [CONNECTOR:%d:%s]\n",
@ -3389,23 +3400,6 @@ int drm_atomic_helper_page_flip_target(struct drm_crtc *crtc,
}
EXPORT_SYMBOL(drm_atomic_helper_page_flip_target);
/**
* drm_atomic_helper_best_encoder - Helper for
* &drm_connector_helper_funcs.best_encoder callback
* @connector: Connector control structure
*
* This is a &drm_connector_helper_funcs.best_encoder callback helper for
* connectors that support exactly 1 encoder, statically determined at driver
* init time.
*/
struct drm_encoder *
drm_atomic_helper_best_encoder(struct drm_connector *connector)
{
WARN_ON(connector->encoder_ids[1]);
return drm_encoder_find(connector->dev, NULL, connector->encoder_ids[0]);
}
EXPORT_SYMBOL(drm_atomic_helper_best_encoder);
/**
* DOC: atomic state reset and initialization
*

1
drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
View file

@ -274,7 +274,6 @@ static const struct drm_connector_funcs vmw_legacy_connector_funcs = {
static const struct
drm_connector_helper_funcs vmw_ldu_connector_helper_funcs = {
.best_encoder = drm_atomic_helper_best_encoder,
};
/*

1
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
View file

@ -389,7 +389,6 @@ static const struct drm_connector_funcs vmw_sou_connector_funcs = {
static const struct
drm_connector_helper_funcs vmw_sou_connector_helper_funcs = {
.best_encoder = drm_atomic_helper_best_encoder,
};

1
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
View file

@ -1037,7 +1037,6 @@ static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
static const struct
drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = {
.best_encoder = drm_atomic_helper_best_encoder,
};

2
include/drm/drm_atomic_helper.h
View file

@ -144,8 +144,6 @@ int drm_atomic_helper_page_flip_target(
uint32_t flags,
uint32_t target,
struct drm_modeset_acquire_ctx *ctx);
struct drm_encoder *
drm_atomic_helper_best_encoder(struct drm_connector *connector);
/* default implementations for state handling */
void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);