imx-drm: fix parallel display regression and typo in plane format list

- Fix a regression where the parallel-display driver would not probe
   anymore if no panel is specified in the device tree, since the
   introduction of drm_of_find_panel_or_bridge.
 - Fix a typo in the plane format list: replace a duplicate BGRA8888 format
   with BGRX8888, as originally intended.
 -----BEGIN PGP SIGNATURE-----
 
 iQJMBAABCAA2FiEEBsBxhV1FaKwXuCOBUMKIHHCeYOsFAlltvcoYHHBoaWxpcHAu
 emFiZWxAZ21haWwuY29tAAoJEFDCiBxwnmDrlCgQANHXCT5QIY9VG575NpCQvT6F
 wm3Bl4uTiIlIQOFSabUznZB15egQFe9StUpa4JvWpPHPlLpiYvjkLEuX1jSVHucD
 s4gQR9vZ43h6xMtSY06TXr/aqy1LSM91ozmYCNawAa9/4nkp2DS/B9p3McbUJf+s
 GBXWPdQ4ldRMYWtT+Yy/5uJPos825E0pjR2N+2AsiE1dzCnGm4NW5Pj6xdJGVqJA
 OHrO8OWW7bg1XZRqRIWcFT+39fSPy9/ua94dgQMKlh6DZ+snWdQmSFH3j3UMiFVs
 vMXXqQ4R52gNWoR0a4FOPytmEnKLB5qB6HnQoATMiExWTVhFAh1gabUSqcwognrh
 gFDMeHXG+AX2hPz0qxldwuHLHd5yLuaYcUMpY0fMhph4j6veBDLUpgyUvopaWQFx
 w2emsQ+1kJCjIEiHmaNbnK58i+m7jEIg558WUVgYAyXQHQMuY2pb1plyUopONZwU
 QDt898nsVfPDBcu6s29l0PmGNlW4jZ5Nt1NzUd8plHQq7m4vl6nhrlH0lig/fqoC
 luQewOTQ+HAp/2OGnHhcVyBJQD11w5jr0K0kwILOMPUHH4NlWWAKrC7S+QHoviOx
 ZKBlHcMz5bgVHGguOa2dFx8LpEMQzeXGk7QwKBfKktDjpmXHT6kiyDX+Yjg8IV0S
 pMFdMvItdyx1dnaOzVp5
 =0w4j
 -----END PGP SIGNATURE-----

Merge tag 'imx-drm-fixes-2017-07-18' of git://git.pengutronix.de/git/pza/linux into drm-fixes

imx-drm: fix parallel display regression and typo in plane format list

- Fix a regression where the parallel-display driver would not probe
  anymore if no panel is specified in the device tree, since the
  introduction of drm_of_find_panel_or_bridge.
- Fix a typo in the plane format list: replace a duplicate BGRA8888 format
  with BGRX8888, as originally intended.

* tag 'imx-drm-fixes-2017-07-18' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure
  drm/imx: fix typo in ipu_plane_formats[]

drivers/gpu/drm/imx/ipuv3-plane.c

@@ -54,7 +54,7 @@ static const uint32_t ipu_plane_formats[] = {
 	DRM_FORMAT_RGBA8888,
 	DRM_FORMAT_RGBX8888,
 	DRM_FORMAT_BGRA8888,
-	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_BGRX8888,
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
 	DRM_FORMAT_YUYV,

drivers/gpu/drm/imx/parallel-display.c

@@ -237,7 +237,7 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 
 	/* port@1 is the output port */
 	ret = drm_of_find_panel_or_bridge(np, 1, 0, &imxpd->panel, &imxpd->bridge);
-	if (ret)
+	if (ret && ret != -ENODEV)
 		return ret;
 
 	imxpd->dev = dev;