diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_sdvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_sdvo.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c index 67e3aaf9b432..7d25a64698e2 100644 --- a/drivers/gpu/drm/i915/display/intel_sdvo.c +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c @@ -2097,7 +2097,7 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector) const struct edid *edid = drm_edid_raw(drm_edid); /* DDC bus is shared, match EDID to connector type */ - if (edid->input & DRM_EDID_INPUT_DIGITAL) + if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) status = connector_status_connected; else status = connector_status_disconnected; @@ -3313,13 +3313,19 @@ intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo, return i2c_add_adapter(&sdvo->ddc) == 0; } -static void assert_sdvo_port_valid(const struct drm_i915_private *dev_priv, - enum port port) +static bool is_sdvo_port_valid(struct drm_i915_private *dev_priv, enum port port) { if (HAS_PCH_SPLIT(dev_priv)) - drm_WARN_ON(&dev_priv->drm, port != PORT_B); + return port == PORT_B; else - drm_WARN_ON(&dev_priv->drm, port != PORT_B && port != PORT_C); + return port == PORT_B || port == PORT_C; +} + +static bool assert_sdvo_port_valid(struct drm_i915_private *dev_priv, + enum port port) +{ + return !drm_WARN(&dev_priv->drm, !is_sdvo_port_valid(dev_priv, port), + "Platform does not support SDVO %c\n", port_name(port)); } bool intel_sdvo_init(struct drm_i915_private *dev_priv, @@ -3329,7 +3335,11 @@ bool intel_sdvo_init(struct drm_i915_private *dev_priv, struct intel_sdvo *intel_sdvo; int i; - assert_sdvo_port_valid(dev_priv, port); + if (!assert_port_valid(dev_priv, port)) + return false; + + if (!assert_sdvo_port_valid(dev_priv, port)) + return false; intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL); if (!intel_sdvo) |