Fabio Estevam 099326d8cd staging: imx-drm: Fix probe failure ... Since commit b5dc0d10 (drm/imx: kill firstopen callback) the following probe failure is seen: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [drm] No driver support for vblank timestamp query. [drm] Initialized imx-drm 1.0.0 20120507 on minor 0 imx-ldb ldb.10: adding encoder failed with -16 imx-ldb: probe of ldb.10 failed with error -16 imx-ipuv3 2400000.ipu: IPUv3H probed imx-ipuv3 2800000.ipu: IPUv3H probed imx-ipuv3-crtc imx-ipuv3-crtc.0: adding crtc failed with -16. imx-ipuv3-crtc: probe of imx-ipuv3-crtc.0 failed with error -16 imx-ipuv3-crtc imx-ipuv3-crtc.1: adding crtc failed with -16. imx-ipuv3-crtc: probe of imx-ipuv3-crtc.1 failed with error -16 imx-ipuv3-crtc imx-ipuv3-crtc.2: adding crtc failed with -16. imx-ipuv3-crtc: probe of imx-ipuv3-crtc.2 failed with error -16 imx-ipuv3-crtc imx-ipuv3-crtc.3: adding crtc failed with -16. imx-ipuv3-crtc: probe of imx-ipuv3-crtc.3 failed with error -16 The reason for the probe failure is that now 'imxdrm->references' is incremented early in imx_drm_driver_load(), so the following checks in imx_drm_add_crtc() and imx_drm_add_encoder(): if (imxdrm->references) { ret = -EBUSY; goto err_busy; } ,will always fail. Instead of manually keeping the references in the imx-drm driver, let's use drm->open_count. After this patch, lvds panel is functional on a mx6qsabrelite board. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-09-25 16:53:40 -07:00
..
ipu-v3	staging: drm/imx: ipu-dc: signedness bug in ipu_dc_init_sync()	2013-08-21 10:07:18 -07:00
Kconfig	staging: imx-drm: add missing MFD_SYSCON dependency for LDB	2013-08-02 11:56:54 +08:00
Makefile	staging: drm/imx: Add LDB support	2013-06-18 11:22:58 -07:00
TODO	imx-drm: TODO: Remove LVDS support from missing features list.	2013-07-25 13:35:21 -07:00
imx-drm-core.c	staging: imx-drm: Fix probe failure	2013-09-25 16:53:40 -07:00
imx-drm.h	staging: drm/imx: Add support for VGA via TVE on i.MX53	2013-04-09 16:16:16 -07:00
imx-fb.c	…
imx-fbdev.c	…
imx-ldb.c	imx-drm: imx-ldb: Add MODULE_ALIAS()	2013-08-19 15:38:03 -07:00
imx-tve.c	Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2013-09-05 09:31:03 -07:00
ipuv3-crtc.c	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2013-09-05 10:17:26 -07:00
parallel-display.c	imx-drm: parallel-display: Add MODULE_ALIAS()	2013-08-19 15:38:03 -07:00