drm/bridge: lt9611: stop filtering modes via the table

The lt9611 bridge can support different modes, it makes no sense to list
them in the table. Drop the table and check the number of interfaces
using the fixed value.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118081658.2198520-13-dmitry.baryshkov@linaro.org

drivers/gpu/drm/bridge/lontium-lt9611.c

@@ -84,24 +84,6 @@ static const struct regmap_config lt9611_regmap_config = {
 	.num_ranges = ARRAY_SIZE(lt9611_ranges),
 };
 
-struct lt9611_mode {
-	u16 hdisplay;
-	u16 vdisplay;
-	u8 vrefresh;
-	u8 lanes;
-	u8 intfs;
-};
-
-static struct lt9611_mode lt9611_modes[] = {
-	{ 3840, 2160, 30, 4, 2 }, /* 3840x2160 24bit 30Hz 4Lane 2ports */
-	{ 1920, 1080, 60, 4, 1 }, /* 1080P 24bit 60Hz 4lane 1port */
-	{ 1920, 1080, 30, 3, 1 }, /* 1080P 24bit 30Hz 3lane 1port */
-	{ 1920, 1080, 24, 3, 1 },
-	{ 720, 480, 60, 4, 1 },
-	{ 720, 576, 50, 2, 1 },
-	{ 640, 480, 60, 2, 1 },
-};
-
 static struct lt9611 *bridge_to_lt9611(struct drm_bridge *bridge)
 {
 	return container_of(bridge, struct lt9611, bridge);
@@ -604,21 +586,6 @@ static int lt9611_regulator_enable(struct lt9611 *lt9611)
 	return 0;
 }
 
-static struct lt9611_mode *lt9611_find_mode(const struct drm_display_mode *mode)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(lt9611_modes); i++) {
-		if (lt9611_modes[i].hdisplay == mode->hdisplay &&
-		    lt9611_modes[i].vdisplay == mode->vdisplay &&
-		    lt9611_modes[i].vrefresh == drm_mode_vrefresh(mode)) {
-			return &lt9611_modes[i];
-		}
-	}
-
-	return NULL;
-}
-
 static enum drm_connector_status lt9611_bridge_detect(struct drm_bridge *bridge)
 {
 	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
@@ -833,12 +800,20 @@ static enum drm_mode_status lt9611_bridge_mode_valid(struct drm_bridge *bridge,
 						     const struct drm_display_info *info,
 						     const struct drm_display_mode *mode)
 {
-	struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode);
 	struct lt9611 *lt9611 = bridge_to_lt9611(bridge);
 
-	if (!lt9611_mode)
-		return MODE_BAD;
-	else if (lt9611_mode->intfs > 1 && !lt9611->dsi1)
+	if (mode->hdisplay > 3840)
+		return MODE_BAD_HVALUE;
+
+	if (mode->vdisplay > 2160)
+		return MODE_BAD_VVALUE;
+
+	if (mode->hdisplay == 3840 &&
+	    mode->vdisplay == 2160 &&
+	    drm_mode_vrefresh(mode) > 30)
+		return MODE_CLOCK_HIGH;
+
+	if (mode->hdisplay > 2000 && !lt9611->dsi1_node)
 		return MODE_PANEL;
 	else
 		return MODE_OK;