This way the drm_bridge_funcs interface is consistent with the rest of
the subsystem.
The drivers implementing those hooks are patched too.
v10:
* Add changelog to the commit message
v8 -> v9:
* No changes
v7:
* Adjust things to the bridge_state changes
v6:
* Also fixed rcar-du/rcar_lvds.c same as analogix/analogix_dp_core.c
v5:
* No changes
v4:
* Rename func params into old_bridge_state
* Add Laurent's Rb
v3:
* Old state clarification moved to a separate patch
v2:
* Pass the old bridge state
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
[narmstrong: renamed state as old_bridge_state in rcar_lvds_atomic_disable]
Reviewed by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
Tested-by: Jonas Karlman <jonas@xxxxxxxxx>
---
---
.../drm/bridge/analogix/analogix_dp_core.c | 41 +++++++------
drivers/gpu/drm/drm_bridge.c | 61 +++++++++++++++----
drivers/gpu/drm/rcar-du/rcar_lvds.c | 8 ++-
include/drm/drm_bridge.h | 8 +--
4 files changed, 82 insertions(+), 36 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index aaaec39ec2a7..dfb59a5fefea 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1289,19 +1289,21 @@ struct drm_crtc *analogix_dp_get_new_crtc(struct analogix_dp_device *dp,
return conn_state->crtc;
}
-static void analogix_dp_bridge_atomic_pre_enable(struct drm_bridge *bridge,
- struct drm_atomic_state *state)
+static void
+analogix_dp_bridge_atomic_pre_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
struct analogix_dp_device *dp = bridge->driver_private;
struct drm_crtc *crtc;
struct drm_crtc_state *old_crtc_state;
int ret;
- crtc = analogix_dp_get_new_crtc(dp, state);
+ crtc = analogix_dp_get_new_crtc(dp, old_state);
if (!crtc)
return;
- old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
+ old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc);
/* Don't touch the panel if we're coming back from PSR */
if (old_crtc_state && old_crtc_state->self_refresh_active)
return;
@@ -1366,20 +1368,22 @@ static int analogix_dp_set_bridge(struct analogix_dp_device *dp)
return ret;
}
-static void analogix_dp_bridge_atomic_enable(struct drm_bridge *bridge,
- struct drm_atomic_state *state)
+static void
+analogix_dp_bridge_atomic_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
struct analogix_dp_device *dp = bridge->driver_private;
struct drm_crtc *crtc;
struct drm_crtc_state *old_crtc_state;
int timeout_loop = 0;
int ret;
- crtc = analogix_dp_get_new_crtc(dp, state);
+ crtc = analogix_dp_get_new_crtc(dp, old_state);
if (!crtc)
return;
- old_crtc_state = drm_atomic_get_old_crtc_state(state, crtc);
+ old_crtc_state = drm_atomic_get_old_crtc_state(old_state, crtc);
/* Not a full enable, just disable PSR and continue */
if (old_crtc_state && old_crtc_state->self_refresh_active) {
ret = analogix_dp_disable_psr(dp);
@@ -1440,18 +1444,20 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
dp->dpms_mode = DRM_MODE_DPMS_OFF;
}
-static void analogix_dp_bridge_atomic_disable(struct drm_bridge *bridge,
- struct drm_atomic_state *state)
+static void
+analogix_dp_bridge_atomic_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
struct analogix_dp_device *dp = bridge->driver_private;
struct drm_crtc *crtc;
struct drm_crtc_state *new_crtc_state = NULL;
- crtc = analogix_dp_get_new_crtc(dp, state);
+ crtc = analogix_dp_get_new_crtc(dp, old_state);
if (!crtc)
goto out;
- new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc);
if (!new_crtc_state)
goto out;
@@ -1463,20 +1469,21 @@ static void analogix_dp_bridge_atomic_disable(struct drm_bridge *bridge,
analogix_dp_bridge_disable(bridge);
}
-static
-void analogix_dp_bridge_atomic_post_disable(struct drm_bridge *bridge,
- struct drm_atomic_state *state)
+static void
+analogix_dp_bridge_atomic_post_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *old_state = old_bridge_state->base.state;
struct analogix_dp_device *dp = bridge->driver_private;
struct drm_crtc *crtc;
struct drm_crtc_state *new_crtc_state;
int ret;
- crtc = analogix_dp_get_new_crtc(dp, state);
+ crtc = analogix_dp_get_new_crtc(dp, old_state);
if (!crtc)
return;
- new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ new_crtc_state = drm_atomic_get_new_crtc_state(old_state, crtc);
if (!new_crtc_state || !new_crtc_state->self_refresh_active)
return;
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 6b08158ebb7e..f6206e655da4 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -458,10 +458,19 @@ void drm_atomic_bridge_chain_disable(struct drm_bridge *bridge,
encoder = bridge->encoder;
list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) {
- if (iter->funcs->atomic_disable)
- iter->funcs->atomic_disable(iter, old_state);
- else if (iter->funcs->disable)
+ if (iter->funcs->atomic_disable) {
+ struct drm_bridge_state *old_bridge_state;
+
+ old_bridge_state =
+ drm_atomic_get_old_bridge_state(old_state,
+ iter);
+ if (WARN_ON(!old_bridge_state))
+ return;
+
+ iter->funcs->atomic_disable(iter, old_bridge_state);
+ } else if (iter->funcs->disable) {
iter->funcs->disable(iter);
+ }
if (iter == bridge)
break;
@@ -492,10 +501,20 @@ void drm_atomic_bridge_chain_post_disable(struct drm_bridge *bridge,
encoder = bridge->encoder;
list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {
- if (bridge->funcs->atomic_post_disable)
- bridge->funcs->atomic_post_disable(bridge, old_state);
- else if (bridge->funcs->post_disable)
+ if (bridge->funcs->atomic_post_disable) {
+ struct drm_bridge_state *old_bridge_state;
+
+ old_bridge_state =
+ drm_atomic_get_old_bridge_state(old_state,
+ bridge);
+ if (WARN_ON(!old_bridge_state))
+ return;
+
+ bridge->funcs->atomic_post_disable(bridge,
+ old_bridge_state);
+ } else if (bridge->funcs->post_disable) {
bridge->funcs->post_disable(bridge);
+ }
}
}
EXPORT_SYMBOL(drm_atomic_bridge_chain_post_disable);
@@ -524,10 +543,19 @@ void drm_atomic_bridge_chain_pre_enable(struct drm_bridge *bridge,
encoder = bridge->encoder;
list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) {
- if (iter->funcs->atomic_pre_enable)
- iter->funcs->atomic_pre_enable(iter, old_state);
- else if (iter->funcs->pre_enable)
+ if (iter->funcs->atomic_pre_enable) {
+ struct drm_bridge_state *old_bridge_state;
+
+ old_bridge_state =
+ drm_atomic_get_old_bridge_state(old_state,
+ iter);
+ if (WARN_ON(!old_bridge_state))
+ return;
+
+ iter->funcs->atomic_pre_enable(iter, old_bridge_state);
+ } else if (iter->funcs->pre_enable) {
iter->funcs->pre_enable(iter);
+ }
if (iter == bridge)
break;
@@ -557,10 +585,19 @@ void drm_atomic_bridge_chain_enable(struct drm_bridge *bridge,
encoder = bridge->encoder;
list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {
- if (bridge->funcs->atomic_enable)
- bridge->funcs->atomic_enable(bridge, old_state);
- else if (bridge->funcs->enable)
+ if (bridge->funcs->atomic_enable) {
+ struct drm_bridge_state *old_bridge_state;
+
+ old_bridge_state =
+ drm_atomic_get_old_bridge_state(old_state,
+ bridge);
+ if (WARN_ON(!old_bridge_state))
+ return;
+
+ bridge->funcs->atomic_enable(bridge, old_bridge_state);
+ } else if (bridge->funcs->enable) {
bridge->funcs->enable(bridge);
+ }
}
}
EXPORT_SYMBOL(drm_atomic_bridge_chain_enable);
diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c
index 3a254f1b29fe..06432c881e07 100644
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
@@ -590,8 +590,9 @@ static void __rcar_lvds_atomic_enable(struct drm_bridge *bridge,
}
static void rcar_lvds_atomic_enable(struct drm_bridge *bridge,
- struct drm_atomic_state *state)
+ struct drm_bridge_state *old_bridge_state)
{
+ struct drm_atomic_state *state = old_bridge_state->base.state;
struct drm_connector *connector;
struct drm_crtc *crtc;
@@ -603,7 +604,7 @@ static void rcar_lvds_atomic_enable(struct drm_bridge *bridge,
}
static void rcar_lvds_atomic_disable(struct drm_bridge *bridge,
- struct drm_atomic_state *state)
+ struct drm_bridge_state *old_bridge_state)
{
struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge);
@@ -618,7 +619,8 @@ static void rcar_lvds_atomic_disable(struct drm_bridge *bridge,
/* Disable the companion LVDS encoder in dual-link mode. */
if (lvds->link_type != RCAR_LVDS_SINGLE_LINK && lvds->companion)
- lvds->companion->funcs->atomic_disable(lvds->companion, state);
+ lvds->companion->funcs->atomic_disable(lvds->companion,
+ old_bridge_state);
clk_disable_unprepare(lvds->clocks.mod);
}
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 8883dcfe63cb..df22f909141f 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -265,7 +265,7 @@ struct drm_bridge_funcs {
* The @atomic_pre_enable callback is optional.
*/
void (*atomic_pre_enable)(struct drm_bridge *bridge,
- struct drm_atomic_state *old_state);
+ struct drm_bridge_state *old_bridge_state);
/**
* @atomic_enable:
@@ -290,7 +290,7 @@ struct drm_bridge_funcs {
* The @atomic_enable callback is optional.
*/
void (*atomic_enable)(struct drm_bridge *bridge,
- struct drm_atomic_state *old_state);
+ struct drm_bridge_state *old_bridge_state);
/**
* @atomic_disable:
*
@@ -313,7 +313,7 @@ struct drm_bridge_funcs {
* The @atomic_disable callback is optional.
*/
void (*atomic_disable)(struct drm_bridge *bridge,
- struct drm_atomic_state *old_state);
+ struct drm_bridge_state *old_bridge_state);
/**
* @atomic_post_disable:
@@ -339,7 +339,7 @@ struct drm_bridge_funcs {
* The @atomic_post_disable callback is optional.
*/
void (*atomic_post_disable)(struct drm_bridge *bridge,
- struct drm_atomic_state *old_state);
+ struct drm_bridge_state *old_bridge_state);
/**
* @atomic_duplicate_state:
--
2.24.1
