Eugeniy Paltsev 7bc61cc5df drm/arcpgu: Accommodate adv7511 switch to DRM bridge ... ARC PGU driver starts crashing on initialization after 'commit e12c2f6455 ("drm/i2c: adv7511: Convert to drm_bridge")' This happenes because in "arcpgu_drm_hdmi_init" function we get pointer of "drm_i2c_encoder_driver" structure, which doesn't exist after adv7511 hdmi encoder interface changed from slave encoder to drm bridge. So, when we call "encoder_init" function from this structure driver crashes. Bootlog: ------------------------------------->8-------------------------------- [drm] Initialized drm 1.1.0 20060810 arcpgu e0017000.pgu: arc_pgu ID: 0xabbabaab arcpgu e0017000.pgu: assigned reserved memory node frame_buffer@9e000000 Path: (null) CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-00001-gb5642252fa01-dirty #8 task: 9a058000 task.stack: 9a032000 [ECR ]: 0x00220100 => Invalid Read @ 0x00000004 by insn @ 0x803934e8 [EFA ]: 0x00000004 [BLINK ]: drm_atomic_helper_connector_dpms+0xa6/0x230 [ERET ]: drm_atomic_helper_connector_dpms+0xa4/0x230 [STAT32]: 0x00000846 : K DE E2 E1 BTA: 0x8016d949 SP: 0x9a033e34 FP: 0x00000000 LPS: 0x8036f6fc LPE: 0x8036f700 LPC: 0x00000000 r00: 0x8063c118 r01: 0x805b98ac r02: 0x00000b11 r03: 0x00000000 r04: 0x9a010f54 r05: 0x00000000 r06: 0x00000001 r07: 0x00000000 r08: 0x00000028 r09: 0x00000001 r10: 0x00000007 r11: 0x00000054 r12: 0x720a3033 Stack Trace: drm_atomic_helper_connector_dpms+0xa4/0x230 arcpgu_drm_hdmi_init+0xbc/0x228 arcpgu_probe+0x168/0x244 platform_drv_probe+0x26/0x64 really_probe+0x1f0/0x32c __driver_attach+0xa8/0xd0 bus_for_each_dev+0x3c/0x74 bus_add_driver+0xc2/0x184 driver_register+0x50/0xec do_one_initcall+0x3a/0x120 kernel_init_freeable+0x108/0x1a0 ------------------------------------->8-------------------------------- Fix ARC PGU driver to be able work with drm bridge hdmi encoder interface. The hdmi connector code isn't needed anymore as we expect the adv7511 bridge driver to create/manage the connector. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Reviewed-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>		2016-11-11 04:31:35 +03:00
..
Kconfig	drm/arc: make fbdev support really optional	2016-07-18 09:11:32 +02:00
Makefile	drm/arcpgu: Make ARC PGU usable on simulation platforms	2016-06-13 17:45:17 +02:00
arcpgu.h	Merge tag 'topic/drm-misc-2016-06-15' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-06-16 05:49:32 +10:00
arcpgu_crtc.c	drm: Don't implement empty prepare_fb()/cleanup_fb()	2016-08-19 10:58:55 +02:00
arcpgu_drv.c	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
arcpgu_hdmi.c	drm/arcpgu: Accommodate adv7511 switch to DRM bridge	2016-11-11 04:31:35 +03:00
arcpgu_regs.h	drm: Add support of ARC PGU display controller	2016-04-26 17:58:02 +03:00
arcpgu_sim.c	drm/arcpgu: Make ARC PGU usable on simulation platforms	2016-06-13 17:45:17 +02:00