[Intel-gfx] [PATCH 2/2] drm/i915: Reduce INTEL_DISPLAY_ENABLED to just treat outputs as disconnected
Ville Syrjala
ville.syrjala at linux.intel.com
Wed Sep 9 21:38:24 UTC 2020
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Since the display hardware is all there even when INTEL_DISPLAY_ENABLED
return false we have to be capable of shutting it down cleanly so
as to not anger the hw. To that end let's reduce the effect of
!INTEL_DISPLAY_ENABLE to just treating all outputs as disconnected.
Should prevent anyone from automagically enabling any of them, while
still allowing us to cleanly shut them down.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/icl_dsi.c | 1 +
drivers/gpu/drm/i915/display/intel_crt.c | 3 +++
drivers/gpu/drm/i915/display/intel_display.c | 2 +-
drivers/gpu/drm/i915/display/intel_dp.c | 3 +++
drivers/gpu/drm/i915/display/intel_dp_mst.c | 4 ++++
drivers/gpu/drm/i915/display/intel_dvo.c | 6 ++++++
drivers/gpu/drm/i915/display/intel_hdmi.c | 3 +++
drivers/gpu/drm/i915/display/intel_lvds.c | 8 +-------
drivers/gpu/drm/i915/display/intel_panel.c | 11 +++++++++++
drivers/gpu/drm/i915/display/intel_panel.h | 2 ++
drivers/gpu/drm/i915/display/intel_sdvo.c | 6 +++++-
drivers/gpu/drm/i915/display/intel_tv.c | 3 +++
drivers/gpu/drm/i915/display/vlv_dsi.c | 1 +
13 files changed, 44 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index f4053dd6bde9..520715b7d5b5 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -1646,6 +1646,7 @@ static const struct drm_encoder_funcs gen11_dsi_encoder_funcs = {
};
static const struct drm_connector_funcs gen11_dsi_connector_funcs = {
+ .detect = intel_panel_detect,
.late_register = intel_connector_register,
.early_unregister = intel_connector_unregister,
.destroy = intel_connector_destroy,
diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
index 5b4510ce5693..a4f83ab60f23 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -557,6 +557,9 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
bool ret = false;
int i, tries = 0;
+ if (!INTEL_DISPLAY_ENABLED(dev_priv))
+ return connector_status_disconnected;
+
if (HAS_PCH_SPLIT(dev_priv))
return ilk_crt_detect_hotplug(connector);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index bacaf713eed4..5611a3d95594 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -16893,7 +16893,7 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
intel_pps_init(dev_priv);
- if (!HAS_DISPLAY(dev_priv) || !INTEL_DISPLAY_ENABLED(dev_priv))
+ if (!HAS_DISPLAY(dev_priv))
return;
if (IS_ROCKETLAKE(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 8a673d0d7051..1a8185f8fb8e 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -6103,6 +6103,9 @@ intel_dp_detect(struct drm_connector *connector,
drm_WARN_ON(&dev_priv->drm,
!drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex));
+ if (!INTEL_DISPLAY_ENABLED(dev_priv))
+ return connector_status_disconnected;
+
/* Can't disconnect eDP */
if (intel_dp_is_edp(intel_dp))
status = edp_detect(intel_dp);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index b6424bf5d544..64d885539e94 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -719,9 +719,13 @@ static int
intel_dp_mst_detect(struct drm_connector *connector,
struct drm_modeset_acquire_ctx *ctx, bool force)
{
+ struct drm_i915_private *i915 = to_i915(connector->dev);
struct intel_connector *intel_connector = to_intel_connector(connector);
struct intel_dp *intel_dp = intel_connector->mst_port;
+ if (!INTEL_DISPLAY_ENABLED(i915))
+ return connector_status_disconnected;
+
if (drm_connector_is_unregistered(connector))
return connector_status_disconnected;
diff --git a/drivers/gpu/drm/i915/display/intel_dvo.c b/drivers/gpu/drm/i915/display/intel_dvo.c
index 307ed8ae9a19..237dbb1ba0ee 100644
--- a/drivers/gpu/drm/i915/display/intel_dvo.c
+++ b/drivers/gpu/drm/i915/display/intel_dvo.c
@@ -313,9 +313,15 @@ static void intel_dvo_pre_enable(struct intel_atomic_state *state,
static enum drm_connector_status
intel_dvo_detect(struct drm_connector *connector, bool force)
{
+ struct drm_i915_private *i915 = to_i915(connector->dev);
struct intel_dvo *intel_dvo = intel_attached_dvo(to_intel_connector(connector));
+
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
connector->base.id, connector->name);
+
+ if (!INTEL_DISPLAY_ENABLED(i915))
+ return connector_status_disconnected;
+
return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev);
}
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 0978b0d8f4c6..04f59516d5f3 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2673,6 +2673,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
drm_dbg_kms(&dev_priv->drm, "[CONNECTOR:%d:%s]\n",
connector->base.id, connector->name);
+ if (!INTEL_DISPLAY_ENABLED(dev_priv))
+ return connector_status_disconnected;
+
wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);
if (INTEL_GEN(dev_priv) >= 11 &&
diff --git a/drivers/gpu/drm/i915/display/intel_lvds.c b/drivers/gpu/drm/i915/display/intel_lvds.c
index 1888611244db..e65c2de522c3 100644
--- a/drivers/gpu/drm/i915/display/intel_lvds.c
+++ b/drivers/gpu/drm/i915/display/intel_lvds.c
@@ -456,12 +456,6 @@ static int intel_lvds_compute_config(struct intel_encoder *intel_encoder,
return 0;
}
-static enum drm_connector_status
-intel_lvds_detect(struct drm_connector *connector, bool force)
-{
- return connector_status_connected;
-}
-
/*
* Return the list of DDC modes if available, or the BIOS fixed mode otherwise.
*/
@@ -490,7 +484,7 @@ static const struct drm_connector_helper_funcs intel_lvds_connector_helper_funcs
};
static const struct drm_connector_funcs intel_lvds_connector_funcs = {
- .detect = intel_lvds_detect,
+ .detect = intel_panel_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.atomic_get_property = intel_digital_connector_atomic_get_property,
.atomic_set_property = intel_digital_connector_atomic_set_property,
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 2eb1a3a93df1..9f23bac0d792 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -2095,6 +2095,17 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel)
}
}
+enum drm_connector_status
+intel_panel_detect(struct drm_connector *connector, bool force)
+{
+ struct drm_i915_private *i915 = to_i915(connector->dev);
+
+ if (!INTEL_DISPLAY_ENABLED(i915))
+ return connector_status_disconnected;
+
+ return connector_status_connected;
+}
+
int intel_panel_init(struct intel_panel *panel,
struct drm_display_mode *fixed_mode,
struct drm_display_mode *downclock_mode)
diff --git a/drivers/gpu/drm/i915/display/intel_panel.h b/drivers/gpu/drm/i915/display/intel_panel.h
index 968b95281cb4..5b813fe90557 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.h
+++ b/drivers/gpu/drm/i915/display/intel_panel.h
@@ -23,6 +23,8 @@ int intel_panel_init(struct intel_panel *panel,
struct drm_display_mode *fixed_mode,
struct drm_display_mode *downclock_mode);
void intel_panel_fini(struct intel_panel *panel);
+enum drm_connector_status
+intel_panel_detect(struct drm_connector *connector, bool force);
void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
struct drm_display_mode *adjusted_mode);
int intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
index 5e9fb349c829..4eaa4aa86ecd 100644
--- a/drivers/gpu/drm/i915/display/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
@@ -2084,14 +2084,18 @@ intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
static enum drm_connector_status
intel_sdvo_detect(struct drm_connector *connector, bool force)
{
- u16 response;
+ struct drm_i915_private *i915 = to_i915(connector->dev);
struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
enum drm_connector_status ret;
+ u16 response;
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
connector->base.id, connector->name);
+ if (!INTEL_DISPLAY_ENABLED(i915))
+ return connector_status_disconnected;
+
if (!intel_sdvo_get_value(intel_sdvo,
SDVO_CMD_GET_ATTACHED_DISPLAYS,
&response, 2))
diff --git a/drivers/gpu/drm/i915/display/intel_tv.c b/drivers/gpu/drm/i915/display/intel_tv.c
index 777032d9697b..7a7b99b015a5 100644
--- a/drivers/gpu/drm/i915/display/intel_tv.c
+++ b/drivers/gpu/drm/i915/display/intel_tv.c
@@ -1706,6 +1706,9 @@ intel_tv_detect(struct drm_connector *connector,
drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] force=%d\n",
connector->base.id, connector->name, force);
+ if (!INTEL_DISPLAY_ENABLED(i915))
+ return connector_status_disconnected;
+
if (force) {
struct intel_load_detect_pipe tmp;
int ret;
diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c b/drivers/gpu/drm/i915/display/vlv_dsi.c
index 052e0b31a2da..5e5522923b1e 100644
--- a/drivers/gpu/drm/i915/display/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/display/vlv_dsi.c
@@ -1585,6 +1585,7 @@ static const struct drm_connector_helper_funcs intel_dsi_connector_helper_funcs
};
static const struct drm_connector_funcs intel_dsi_connector_funcs = {
+ .detect = intel_panel_detect,
.late_register = intel_connector_register,
.early_unregister = intel_connector_unregister,
.destroy = intel_connector_destroy,
--
2.26.2
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