diff mbox series

[v2] drm/radeon: Switch radeon_connector to struct drm_edid

Message ID 20240822-radeon-drm_edid-v2-1-58321551811d@weissschuh.net (mailing list archive)
State New, archived
Headers show
Series [v2] drm/radeon: Switch radeon_connector to struct drm_edid | expand

Commit Message

Thomas Weißschuh Aug. 22, 2024, 7:35 p.m. UTC 
"struct drm_edid" is the safe and recommended alternative to "struct edid".

Rename the member to make sure that no usage sites are missed,
as "struct drm_edid" has some restrictions, for example it can not be
used with kfree().

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
Changes in v2:
- Simplify some logic as drm_edid_*()-APIs can handle NULL
- Correctly use drm_edid_read_switcheroo()
- Link to v1: https://lore.kernel.org/r/20240818-radeon-drm_edid-v1-1-4b7fdd19132e@weissschuh.net
---
This is only compile-tested.
---
 drivers/gpu/drm/radeon/radeon_audio.c      |  4 +--
 drivers/gpu/drm/radeon/radeon_combios.c    |  4 +--
 drivers/gpu/drm/radeon/radeon_connectors.c | 56 +++++++++++++-----------------
 drivers/gpu/drm/radeon/radeon_mode.h       |  5 ++-
 4 files changed, 31 insertions(+), 38 deletions(-)


---
base-commit: 19cff16559a4f2d763faf4f8392bf86d3a21b93c
change-id: 20240818-radeon-drm_edid-9f0cec36e227

Best regards,
diff mbox series

Patch

diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index 47aa06a9a942..59d0e47c94d0 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -311,7 +311,7 @@  static void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
 	if (!connector)
 		return;
 
-	sad_count = drm_edid_to_sad(radeon_connector->edid, &sads);
+	sad_count = drm_edid_to_sad(drm_edid_raw(radeon_connector->drm_edid), &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)
@@ -335,7 +335,7 @@  static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
 	if (!connector)
 		return;
 
-	sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid, &sadb);
+	sad_count = drm_edid_to_speaker_allocation(drm_edid_raw(radeon_connector->drm_edid), &sadb);
 	if (sad_count < 0) {
 		DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n",
 			  sad_count);
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index df8d7f56b028..f4947acd0419 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -390,10 +390,10 @@  bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
 }
 
 /* this is used for atom LCDs as well */
-struct edid *
+const struct drm_edid *
 radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
 {
-	return drm_edid_duplicate(drm_edid_raw(rdev->mode_info.bios_hardcoded_edid));
+	return drm_edid_dup(rdev->mode_info.bios_hardcoded_edid);
 }
 
 static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 528a8f3677c2..5cf3486b7378 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -261,7 +261,7 @@  static void radeon_connector_get_edid(struct drm_connector *connector)
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 
-	if (radeon_connector->edid)
+	if (radeon_connector->drm_edid)
 		return;
 
 	/* on hw with routers, select right port */
@@ -271,8 +271,8 @@  static void radeon_connector_get_edid(struct drm_connector *connector)
 	if ((radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
 	     ENCODER_OBJECT_ID_NONE) &&
 	    radeon_connector->ddc_bus->has_aux) {
-		radeon_connector->edid = drm_get_edid(connector,
-						      &radeon_connector->ddc_bus->aux.ddc);
+		radeon_connector->drm_edid = drm_edid_read_ddc(connector,
+							       &radeon_connector->ddc_bus->aux.ddc);
 	} else if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
 		   (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
@@ -280,22 +280,22 @@  static void radeon_connector_get_edid(struct drm_connector *connector)
 		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
 		     dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) &&
 		    radeon_connector->ddc_bus->has_aux)
-			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
-							      &radeon_connector->ddc_bus->aux.ddc);
+			radeon_connector->drm_edid = drm_edid_read_ddc(&radeon_connector->base,
+								       &radeon_connector->ddc_bus->aux.ddc);
 		else if (radeon_connector->ddc_bus)
-			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
-							      &radeon_connector->ddc_bus->adapter);
+			radeon_connector->drm_edid = drm_edid_read_ddc(&radeon_connector->base,
+								       &radeon_connector->ddc_bus->adapter);
 	} else if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC &&
 		   connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
 		   radeon_connector->ddc_bus) {
-		radeon_connector->edid = drm_get_edid_switcheroo(&radeon_connector->base,
-								 &radeon_connector->ddc_bus->adapter);
+		radeon_connector->drm_edid = drm_edid_read_switcheroo(&radeon_connector->base,
+								      &radeon_connector->ddc_bus->adapter);
 	} else if (radeon_connector->ddc_bus) {
-		radeon_connector->edid = drm_get_edid(&radeon_connector->base,
-						      &radeon_connector->ddc_bus->adapter);
+		radeon_connector->drm_edid = drm_edid_read_ddc(&radeon_connector->base,
+							       &radeon_connector->ddc_bus->adapter);
 	}
 
-	if (!radeon_connector->edid) {
+	if (!radeon_connector->drm_edid) {
 		/* don't fetch the edid from the vbios if ddc fails and runpm is
 		 * enabled so we report disconnected.
 		 */
@@ -306,34 +306,30 @@  static void radeon_connector_get_edid(struct drm_connector *connector)
 			/* some laptops provide a hardcoded edid in rom for LCDs */
 			if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) ||
 			     (connector->connector_type == DRM_MODE_CONNECTOR_eDP)))
-				radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
+				radeon_connector->drm_edid = radeon_bios_get_hardcoded_edid(rdev);
 		} else {
 			/* some servers provide a hardcoded edid in rom for KVMs */
-			radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
+			radeon_connector->drm_edid = radeon_bios_get_hardcoded_edid(rdev);
 		}
 	}
+
+	drm_edid_connector_update(&radeon_connector->base, radeon_connector->drm_edid);
 }
 
 static void radeon_connector_free_edid(struct drm_connector *connector)
 {
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 
-	kfree(radeon_connector->edid);
-	radeon_connector->edid = NULL;
+	drm_edid_free(radeon_connector->drm_edid);
+	radeon_connector->drm_edid = NULL;
 }
 
 static int radeon_ddc_get_modes(struct drm_connector *connector)
 {
 	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
-	int ret;
 
-	if (radeon_connector->edid) {
-		drm_connector_update_edid_property(connector, radeon_connector->edid);
-		ret = drm_add_edid_modes(connector, radeon_connector->edid);
-		return ret;
-	}
-	drm_connector_update_edid_property(connector, NULL);
-	return 0;
+	drm_edid_connector_update(connector, radeon_connector->drm_edid);
+	return drm_edid_connector_add_modes(connector);
 }
 
 static struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
@@ -869,7 +865,7 @@  radeon_lvds_detect(struct drm_connector *connector, bool force)
 
 	/* check for edid as well */
 	radeon_connector_get_edid(connector);
-	if (radeon_connector->edid)
+	if (radeon_connector->drm_edid)
 		ret = connector_status_connected;
 	/* check acpi lid status ??? */
 
@@ -1012,13 +1008,12 @@  radeon_vga_detect(struct drm_connector *connector, bool force)
 		radeon_connector_free_edid(connector);
 		radeon_connector_get_edid(connector);
 
-		if (!radeon_connector->edid) {
+		if (!radeon_connector->drm_edid) {
 			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
 					connector->name);
 			ret = connector_status_connected;
 		} else {
-			radeon_connector->use_digital =
-				!!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
+			radeon_connector->use_digital = drm_edid_is_digital(radeon_connector->drm_edid);
 
 			/* some oems have boards with separate digital and analog connectors
 			 * with a shared ddc line (often vga + hdmi)
@@ -1270,7 +1265,7 @@  radeon_dvi_detect(struct drm_connector *connector, bool force)
 		radeon_connector_free_edid(connector);
 		radeon_connector_get_edid(connector);
 
-		if (!radeon_connector->edid) {
+		if (!radeon_connector->drm_edid) {
 			DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
 					connector->name);
 			/* rs690 seems to have a problem with connectors not existing and always
@@ -1286,8 +1281,7 @@  radeon_dvi_detect(struct drm_connector *connector, bool force)
 				broken_edid = true; /* defer use_digital to later */
 			}
 		} else {
-			radeon_connector->use_digital =
-				!!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
+			radeon_connector->use_digital = drm_edid_is_digital(radeon_connector->drm_edid);
 
 			/* some oems have boards with separate digital and analog connectors
 			 * with a shared ddc line (often vga + hdmi)
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 421c83fc70dc..ae1d91cd93ec 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -38,7 +38,6 @@ 
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
 
-struct edid;
 struct drm_edid;
 struct radeon_bo;
 struct radeon_device;
@@ -521,7 +520,7 @@  struct radeon_connector {
 	bool use_digital;
 	/* we need to mind the EDID between detect
 	   and get modes due to analog/digital/tvencoder */
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	void *con_priv;
 	bool dac_load_detect;
 	bool detected_by_load; /* if the connection status was determined by load */
@@ -843,7 +842,7 @@  radeon_get_crtc_scanout_position(struct drm_crtc *crtc, bool in_vblank_irq,
 				 const struct drm_display_mode *mode);
 
 extern bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev);
-extern struct edid *
+extern const struct drm_edid *
 radeon_bios_get_hardcoded_edid(struct radeon_device *rdev);
 extern bool radeon_atom_get_clock_info(struct drm_device *dev);
 extern bool radeon_combios_get_clock_info(struct drm_device *dev);