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Commit aff04ace authored by Thomas Wood's avatar Thomas Wood Committed by Daniel Vetter
Browse files

drm/edid: split VIC display mode lookup into a separate function 



Signed-off-by: default avatarThomas Wood <thomas.wood@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 0993f1d0

drivers/gpu/drm/drm_edid.c

+39 −28
Original line number Diff line number Diff line
@@ -2562,25 +2562,40 @@ add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid) 
	return modes;

}



static int

do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)

static struct drm_display_mode *

drm_display_mode_from_vic_index(struct drm_connector *connector,

				const u8 *video_db, u8 video_len,

				u8 video_index)

{

	struct drm_device *dev = connector->dev;

	const u8 *mode;

	struct drm_display_mode *newmode;

	u8 cea_mode;

	int modes = 0;



	for (mode = db; mode < db + len; mode++) {

		cea_mode = (*mode & 127) - 1; /* CEA modes are numbered 1..127 */

		if (cea_mode < ARRAY_SIZE(edid_cea_modes)) {

			struct drm_display_mode *newmode;

			newmode = drm_mode_duplicate(dev,

						     &edid_cea_modes[cea_mode]);

			if (newmode) {

	if (video_db == NULL || video_index >= video_len)

		return NULL;



	/* CEA modes are numbered 1..127 */

	cea_mode = (video_db[video_index] & 127) - 1;

	if (cea_mode >= ARRAY_SIZE(edid_cea_modes))

		return NULL;



	newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);

	newmode->vrefresh = 0;

				drm_mode_probed_add(connector, newmode);

				modes++;



	return newmode;

}



static int

do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)

{

	int i, modes = 0;



	for (i = 0; i < len; i++) {

		struct drm_display_mode *mode;

		mode = drm_display_mode_from_vic_index(connector, db, len, i);

		if (mode) {

			drm_mode_probed_add(connector, mode);

			modes++;

		}

	}
@@ -2674,21 +2689,13 @@ static int add_hdmi_mode(struct drm_connector *connector, u8 vic) 
static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,

			       const u8 *video_db, u8 video_len, u8 video_index)

{

	struct drm_device *dev = connector->dev;

	struct drm_display_mode *newmode;

	int modes = 0;

	u8 cea_mode;



	if (video_db == NULL || video_index >= video_len)

		return 0;



	/* CEA modes are numbered 1..127 */

	cea_mode = (video_db[video_index] & 127) - 1;

	if (cea_mode >= ARRAY_SIZE(edid_cea_modes))

		return 0;



	if (structure & (1 << 0)) {

		newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);

		newmode = drm_display_mode_from_vic_index(connector, video_db,

							  video_len,

							  video_index);

		if (newmode) {

			newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;

			drm_mode_probed_add(connector, newmode);
@@ -2696,7 +2703,9 @@ static int add_3d_struct_modes(struct drm_connector *connector, u16 structure, 
		}

	}

	if (structure & (1 << 6)) {

		newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);

		newmode = drm_display_mode_from_vic_index(connector, video_db,

							  video_len,

							  video_index);

		if (newmode) {

			newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;

			drm_mode_probed_add(connector, newmode);
@@ -2704,7 +2713,9 @@ static int add_3d_struct_modes(struct drm_connector *connector, u16 structure, 
		}

	}

	if (structure & (1 << 8)) {

		newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);

		newmode = drm_display_mode_from_vic_index(connector, video_db,

							  video_len,

							  video_index);

		if (newmode) {

			newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;

			drm_mode_probed_add(connector, newmode);