Add support for eDP panels with a built-in privacy screen using the
new drm_privacy_screen class.
Changes in v2:
- Call drm_connector_update_privacy_screen() from
intel_enable_ddi_dp() / intel_ddi_update_pipe_dp() instead of adding a
for_each_new_connector_in_state() loop to intel_atomic_commit_tail()
- Move the probe-deferral check to the intel_modeset_probe_defer() helper
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_atomic.c | 1 +
drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++
drivers/gpu/drm/i915/display/intel_display.c | 10 ++++++++++
drivers/gpu/drm/i915/display/intel_dp.c | 10 ++++++++++
4 files changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index b4e7ac51aa31..a62550711e98 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -139,6 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn,
new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
new_conn_state->base.content_type != old_conn_state->base.content_type ||
new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
+ new_conn_state->base.privacy_screen_sw_state != old_conn_state->base.privacy_screen_sw_state ||
!drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
crtc_state->mode_changed = true;
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 51cd0420e00e..e4496c830a35 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -25,6 +25,7 @@
*
*/
+#include <drm/drm_privacy_screen_consumer.h>
#include <drm/drm_scdc_helper.h>
#include "i915_drv.h"
@@ -3022,6 +3023,7 @@ static void intel_enable_ddi_dp(struct intel_atomic_state *state,
if (port == PORT_A && DISPLAY_VER(dev_priv) < 9)
intel_dp_stop_link_train(intel_dp, crtc_state);
+ drm_connector_update_privacy_screen(conn_state);
intel_edp_backlight_on(crtc_state, conn_state);
if (!dig_port->lspcon.active || dig_port->dp.has_hdmi_sink)
@@ -3247,6 +3249,7 @@ static void intel_ddi_update_pipe_dp(struct intel_atomic_state *state,
intel_drrs_update(intel_dp, crtc_state);
intel_backlight_update(state, encoder, crtc_state, conn_state);
+ drm_connector_update_privacy_screen(conn_state);
}
void intel_ddi_update_pipe(struct intel_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e67f3207ba54..9a5dbe51458d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -42,6 +42,7 @@
#include <drm/drm_edid.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_plane_helper.h>
+#include <drm/drm_privacy_screen_consumer.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_rect.h>
#include <drm/drm_drv.h>
@@ -12693,6 +12694,8 @@ void intel_modeset_driver_remove_nogem(struct drm_i915_private *i915)
bool intel_modeset_probe_defer(struct pci_dev *pdev)
{
+ struct drm_privacy_screen *privacy_screen;
+
/*
* apple-gmux is needed on dual GPU MacBook Pro
* to probe the panel if we're the inactive GPU.
@@ -12700,6 +12703,13 @@ bool intel_modeset_probe_defer(struct pci_dev *pdev)
if (vga_switcheroo_client_probe_defer(pdev))
return true;
+ /* If the LCD panel has a privacy-screen, wait for it */
+ privacy_screen = drm_privacy_screen_get(&pdev->dev, NULL);
+ if (IS_ERR(privacy_screen) && PTR_ERR(privacy_screen) == -EPROBE_DEFER)
+ return true;
+
+ drm_privacy_screen_put(privacy_screen);
+
return false;
}
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 74a657ae131a..91207310dc0d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -37,6 +37,7 @@
#include <drm/drm_crtc.h>
#include <drm/drm_dp_helper.h>
#include <drm/drm_edid.h>
+#include <drm/drm_privacy_screen_consumer.h>
#include <drm/drm_probe_helper.h>
#include "g4x_dp.h"
@@ -4808,6 +4809,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
struct drm_connector *connector = &intel_connector->base;
struct drm_display_mode *fixed_mode = NULL;
struct drm_display_mode *downclock_mode = NULL;
+ struct drm_privacy_screen *privacy_screen;
bool has_dpcd;
enum pipe pipe = INVALID_PIPE;
struct edid *edid;
@@ -4902,6 +4904,14 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
fixed_mode->hdisplay, fixed_mode->vdisplay);
}
+ privacy_screen = drm_privacy_screen_get(dev->dev, NULL);
+ if (!IS_ERR(privacy_screen)) {
+ drm_connector_attach_privacy_screen_provider(connector,
+ privacy_screen);
+ } else if (PTR_ERR(privacy_screen) != -ENODEV) {
+ drm_warn(&dev_priv->drm, "Error getting privacy-screen\n");
+ }
+
return true;
out_vdd_off:
--
2.31.1
