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path: root/drivers/gpu/drm/drm_edid.c
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Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index b924306b8477..d4e3f9d9370f 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1098,10 +1098,14 @@ EXPORT_SYMBOL(drm_edid_is_valid);
/**
* Get EDID information via I2C.
*
- * \param adapter : i2c device adaptor
- * \param buf : EDID data buffer to be filled
- * \param len : EDID data buffer length
- * \return 0 on success or -1 on failure.
+ * @adapter : i2c device adaptor
+ * @buf: EDID data buffer to be filled
+ * @block: 128 byte EDID block to start fetching from
+ * @len: EDID data buffer length to fetch
+ *
+ * Returns:
+ *
+ * 0 on success or -1 on failure.
*
* Try to fetch EDID information by calling i2c driver function.
*/
@@ -1243,9 +1247,11 @@ out:
/**
* Probe DDC presence.
+ * @adapter: i2c adapter to probe
+ *
+ * Returns:
*
- * \param adapter : i2c device adaptor
- * \return 1 on success
+ * 1 on success
*/
bool
drm_probe_ddc(struct i2c_adapter *adapter)
@@ -1586,8 +1592,10 @@ bad_std_timing(u8 a, u8 b)
/**
* drm_mode_std - convert standard mode info (width, height, refresh) into mode
+ * @connector: connector of for the EDID block
+ * @edid: EDID block to scan
* @t: standard timing params
- * @timing_level: standard timing level
+ * @revision: standard timing level
*
* Take the standard timing params (in this case width, aspect, and refresh)
* and convert them into a real mode using CVT/GTF/DMT.
@@ -2132,6 +2140,7 @@ do_established_modes(struct detailed_timing *timing, void *c)
/**
* add_established_modes - get est. modes from EDID and add them
+ * @connector: connector of for the EDID block
* @edid: EDID block to scan
*
* Each EDID block contains a bitmap of the supported "established modes" list
@@ -2194,6 +2203,7 @@ do_standard_modes(struct detailed_timing *timing, void *c)
/**
* add_standard_modes - get std. modes from EDID and add them
+ * @connector: connector of for the EDID block
* @edid: EDID block to scan
*
* Standard modes can be calculated using the appropriate standard (DMT,
@@ -2580,6 +2590,9 @@ drm_display_mode_from_vic_index(struct drm_connector *connector,
return NULL;
newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
+ if (!newmode)
+ return NULL;
+
newmode->vrefresh = 0;
return newmode;
@@ -3300,6 +3313,7 @@ EXPORT_SYMBOL(drm_detect_hdmi_monitor);
/**
* drm_detect_monitor_audio - check monitor audio capability
+ * @edid: EDID block to scan
*
* Monitor should have CEA extension block.
* If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
@@ -3345,6 +3359,7 @@ EXPORT_SYMBOL(drm_detect_monitor_audio);
/**
* drm_rgb_quant_range_selectable - is RGB quantization range selectable?
+ * @edid: EDID block to scan
*
* Check whether the monitor reports the RGB quantization range selection
* as supported. The AVI infoframe can then be used to inform the monitor
@@ -3564,8 +3579,8 @@ void drm_set_preferred_mode(struct drm_connector *connector,
struct drm_display_mode *mode;
list_for_each_entry(mode, &connector->probed_modes, head) {
- if (drm_mode_width(mode) == hpref &&
- drm_mode_height(mode) == vpref)
+ if (mode->hdisplay == hpref &&
+ mode->vdisplay == vpref)
mode->type |= DRM_MODE_TYPE_PREFERRED;
}
}
@@ -3599,6 +3614,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
+ frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
return 0;
}