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path: root/drivers/gpu/drm/radeon/radeon_connectors.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c130
1 files changed, 105 insertions, 25 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 9792d4ffdc86..c4b8741dbf58 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -60,18 +60,20 @@ void radeon_connector_hotplug(struct drm_connector *connector)
radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
- /* powering up/down the eDP panel generates hpd events which
- * can interfere with modesetting.
- */
- if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+ /* if the connector is already off, don't turn it back on */
+ if (connector->dpms != DRM_MODE_DPMS_ON)
return;
- /* pre-r600 did not always have the hpd pins mapped accurately to connectors */
- if (rdev->family >= CHIP_R600) {
- if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
+ /* just deal with DP (not eDP) here. */
+ if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+ int saved_dpms = connector->dpms;
+
+ if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
+ radeon_dp_needs_link_train(radeon_connector))
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
else
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+ connector->dpms = saved_dpms;
}
}
@@ -430,16 +432,73 @@ int radeon_connector_set_property(struct drm_connector *connector, struct drm_pr
return 0;
}
+/*
+ * Some integrated ATI Radeon chipset implementations (e. g.
+ * Asus M2A-VM HDMI) may indicate the availability of a DDC,
+ * even when there's no monitor connected. For these connectors
+ * following DDC probe extension will be applied: check also for the
+ * availability of EDID with at least a correct EDID header. Only then,
+ * DDC is assumed to be available. This prevents drm_get_edid() and
+ * drm_edid_block_valid() from periodically dumping data and kernel
+ * errors into the logs and onto the terminal.
+ */
+static bool radeon_connector_needs_extended_probe(struct radeon_device *dev,
+ uint32_t supported_device,
+ int connector_type)
+{
+ /* Asus M2A-VM HDMI board sends data to i2c bus even,
+ * if HDMI add-on card is not plugged in or HDMI is disabled in
+ * BIOS. Valid DDC can only be assumed, if also a valid EDID header
+ * can be retrieved via i2c bus during DDC probe */
+ if ((dev->pdev->device == 0x791e) &&
+ (dev->pdev->subsystem_vendor == 0x1043) &&
+ (dev->pdev->subsystem_device == 0x826d)) {
+ if ((connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
+ (supported_device == ATOM_DEVICE_DFP2_SUPPORT))
+ return true;
+ }
+ /* ECS A740GM-M with ATI RADEON 2100 sends data to i2c bus
+ * for a DVI connector that is not implemented */
+ if ((dev->pdev->device == 0x796e) &&
+ (dev->pdev->subsystem_vendor == 0x1019) &&
+ (dev->pdev->subsystem_device == 0x2615)) {
+ if ((connector_type == DRM_MODE_CONNECTOR_DVID) &&
+ (supported_device == ATOM_DEVICE_DFP2_SUPPORT))
+ return true;
+ }
+ /* TOSHIBA Satellite L300D with ATI Mobility Radeon x1100
+ * (RS690M) sends data to i2c bus for a HDMI connector that
+ * is not implemented */
+ if ((dev->pdev->device == 0x791f) &&
+ (dev->pdev->subsystem_vendor == 0x1179) &&
+ (dev->pdev->subsystem_device == 0xff68)) {
+ if ((connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
+ (supported_device == ATOM_DEVICE_DFP2_SUPPORT))
+ return true;
+ }
+
+ /* Default: no EDID header probe required for DDC probing */
+ return false;
+}
+
static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
struct drm_connector *connector)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
+ struct drm_display_mode *t, *mode;
+
+ /* If the EDID preferred mode doesn't match the native mode, use it */
+ list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
+ if (mode->type & DRM_MODE_TYPE_PREFERRED) {
+ if (mode->hdisplay != native_mode->hdisplay ||
+ mode->vdisplay != native_mode->vdisplay)
+ memcpy(native_mode, mode, sizeof(*mode));
+ }
+ }
/* Try to get native mode details from EDID if necessary */
if (!native_mode->clock) {
- struct drm_display_mode *t, *mode;
-
list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
if (mode->hdisplay == native_mode->hdisplay &&
mode->vdisplay == native_mode->vdisplay) {
@@ -450,6 +509,7 @@ static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
}
}
}
+
if (!native_mode->clock) {
DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
radeon_encoder->rmx_type = RMX_OFF;
@@ -661,7 +721,8 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
ret = connector_status_disconnected;
if (radeon_connector->ddc_bus)
- dret = radeon_ddc_probe(radeon_connector);
+ dret = radeon_ddc_probe(radeon_connector,
+ radeon_connector->requires_extended_probe);
if (dret) {
if (radeon_connector->edid) {
kfree(radeon_connector->edid);
@@ -833,7 +894,8 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
bool dret = false;
if (radeon_connector->ddc_bus)
- dret = radeon_ddc_probe(radeon_connector);
+ dret = radeon_ddc_probe(radeon_connector,
+ radeon_connector->requires_extended_probe);
if (dret) {
if (radeon_connector->edid) {
kfree(radeon_connector->edid);
@@ -1235,12 +1297,33 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_OFF);
- } else {
- /* need to setup ddc on the bridge */
- if (radeon_connector_encoder_is_dp_bridge(connector)) {
+ } else if (radeon_connector_encoder_is_dp_bridge(connector)) {
+ /* DP bridges are always DP */
+ radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
+ /* get the DPCD from the bridge */
+ radeon_dp_getdpcd(radeon_connector);
+
+ if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
+ ret = connector_status_connected;
+ else {
+ /* need to setup ddc on the bridge */
if (encoder)
radeon_atom_ext_encoder_setup_ddc(encoder);
+ if (radeon_ddc_probe(radeon_connector,
+ radeon_connector->requires_extended_probe))
+ ret = connector_status_connected;
+ }
+
+ if ((ret == connector_status_disconnected) &&
+ radeon_connector->dac_load_detect) {
+ struct drm_encoder *encoder = radeon_best_single_encoder(connector);
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ if (encoder) {
+ encoder_funcs = encoder->helper_private;
+ ret = encoder_funcs->detect(encoder, connector);
+ }
}
+ } else {
radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
ret = connector_status_connected;
@@ -1251,20 +1334,11 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
if (radeon_dp_getdpcd(radeon_connector))
ret = connector_status_connected;
} else {
- if (radeon_ddc_probe(radeon_connector))
+ if (radeon_ddc_probe(radeon_connector,
+ radeon_connector->requires_extended_probe))
ret = connector_status_connected;
}
}
-
- if ((ret == connector_status_disconnected) &&
- radeon_connector->dac_load_detect) {
- struct drm_encoder *encoder = radeon_best_single_encoder(connector);
- struct drm_encoder_helper_funcs *encoder_funcs;
- if (encoder) {
- encoder_funcs = encoder->helper_private;
- ret = encoder_funcs->detect(encoder, connector);
- }
- }
}
radeon_connector_update_scratch_regs(connector, ret);
@@ -1406,6 +1480,9 @@ radeon_add_atom_connector(struct drm_device *dev,
radeon_connector->shared_ddc = shared_ddc;
radeon_connector->connector_object_id = connector_object_id;
radeon_connector->hpd = *hpd;
+ radeon_connector->requires_extended_probe =
+ radeon_connector_needs_extended_probe(rdev, supported_device,
+ connector_type);
radeon_connector->router = *router;
if (router->ddc_valid || router->cd_valid) {
radeon_connector->router_bus = radeon_i2c_lookup(rdev, &router->i2c_info);
@@ -1752,6 +1829,9 @@ radeon_add_legacy_connector(struct drm_device *dev,
radeon_connector->devices = supported_device;
radeon_connector->connector_object_id = connector_object_id;
radeon_connector->hpd = *hpd;
+ radeon_connector->requires_extended_probe =
+ radeon_connector_needs_extended_probe(rdev, supported_device,
+ connector_type);
switch (connector_type) {
case DRM_MODE_CONNECTOR_VGA:
drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);