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linux-uconsole/drivers/gpu/drm
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John Stultz f4596ead66 drm/bridge: adv7511: Re-write the i2c address before EDID probing 
commit 3587c85667 upstream.

I've found that by just turning the chip on and off via the
POWER_DOWN register, I end up getting i2c_transfer errors on
HiKey.

Investigating further, it turns out that some of the register
state in hardware is getting lost, as the device registers are
reset when the chip is powered down.

Thus this patch simply re-writes the i2c address to the
ADV7511_REG_EDID_I2C_ADDR register to ensure its properly set
before we try to read the EDID data.

Cc: David Airlie <airlied@linux.ie>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1484614372-15342-7-git-send-email-john.stultz@linaro.org
Signed-off-by: Thong Ho <thong.ho.px@rvc.renesas.com>
Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-13 14:09:46 -07:00
..
amd drm/amd/amdgpu: Return error if initiating read out of range on vram 2017-07-27 15:06:06 -07:00
armada drm/armada: Convert the probe function to the generic drm_of_component_probe() 2015-10-20 12:01:34 +02:00
ast drm/ast: Handle configuration without P2A bridge 2017-07-05 14:37:15 +02:00
atmel-hlcdc drm: atmel-hlcdc: Fix vertical scaling 2016-09-24 10:07:42 +02:00
bochs
bridge drm/panel: Changes for v4.4-rc1 2015-11-05 11:07:13 +10:00
cirrus
exynos drm/exynos: fix error handling in exynos_drm_subdrv_open 2016-11-10 16:36:36 +01:00
fsl-dcu drm: Stop using drm_vblank_count() as the hw frame counter 2015-10-07 16:13:52 +02:00
gma500 drm/gma500/psb: Actually use VBT mode when it is found 2017-06-07 12:06:01 +02:00
i2c drm/bridge: adv7511: Re-write the i2c address before EDID probing 2017-09-13 14:09:46 -07:00
i810
i915 drm/i915: fix compiler warning in drivers/gpu/drm/i915/intel_uncore.c 2017-09-02 07:06:53 +02:00
imx drm/imx: Match imx-ipuv3-crtc components using device node in platform data 2016-06-07 18:14:37 -07:00
mga drm/irq: Use unsigned int pipe in public API 2015-10-06 12:57:47 +02:00
mgag200 drm/mgag200: Black screen fix for G200e rev 4 2016-07-27 09:47:32 -07:00
msm drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set 2017-08-06 19:19:44 -07:00
nouveau drm/nouveau/pci/msi: disable MSI on big-endian platforms by default 2017-09-13 14:09:45 -07:00
omapdrm drm/omap: fix fbdev pix format to support all platforms 2015-12-14 10:00:22 +02:00
panel spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
qxl qxl: check for kmap failures 2016-09-30 10:18:39 +02:00
r128 drm/irq: Use unsigned int pipe in public API 2015-10-06 12:57:47 +02:00
radeon drm/radeon: Fix eDP for single-display iMac10,1 (v2) 2017-07-27 15:06:06 -07:00
rcar-du drm: rcar-du: Fix H/V sync signal polarity configuration 2017-08-30 10:19:24 +02:00
rockchip drm/rockchip: Use CRTC vblank event interface 2015-12-02 10:22:21 +08:00
savage
shmobile drm: Stop using drm_vblank_count() as the hw frame counter 2015-10-07 16:13:52 +02:00
sis include/uapi/drm/sis_drm.h: move sis_file_private to drivers/gpu/drm/sis/sis_drv.h 2015-10-16 11:27:46 +10:00
sti drm/sti: load HQVDP firmware the first time HQVDP's plane is used 2015-11-03 13:04:56 +01:00
tdfx
tegra Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-11-10 09:33:06 -08:00
tilcdc drm: Stop using drm_vblank_count() as the hw frame counter 2015-10-07 16:13:52 +02:00
ttm drm/ttm: Fix accounting error when fail to get pages for pool 2017-09-07 08:34:09 +02:00
udl drm/udl: Use unlocked gem unreferencing 2016-04-20 15:41:55 +09:00
vc4 drm/vc4: Make sure that planes aren't scaled. 2015-11-17 12:27:03 -08:00
vgem drm/vgem: Drop vgem_drm_gem_mmap 2015-10-19 11:00:44 +02:00
via via_drm.h: move struct via_file_private definition to drivers/gpu/drm/via/via_drv.h 2015-10-16 11:27:49 +10:00
virtio drm/virtio: fix framebuffer sparse warning 2017-08-11 09:08:58 -07:00
vmwgfx drm/vmwgfx: Fix gcc-7.1.1 warning 2017-08-06 19:19:39 -07:00
ati_pcigart.c
drm_agpsupport.c drm: Remove __OS_HAS_AGP 2015-09-30 10:44:48 +02:00
drm_atomic.c drm/atomic: If the atomic check fails, return its value first 2017-08-30 10:19:23 +02:00
drm_atomic_helper.c drm/atomic: fix an error code in mode_fixup() 2017-03-15 09:57:15 +08:00
drm_auth.c
drm_bridge.c
drm_bufs.c drm: Remove __OS_HAS_AGP 2015-09-30 10:44:48 +02:00
drm_cache.c drm: Restore double clflush on the last partial cacheline 2016-08-20 18:09:23 +02:00
drm_context.c
drm_crtc.c drm: Reject page_flip for !DRIVER_MODESET 2016-09-15 08:27:51 +02:00
drm_crtc_helper.c
drm_crtc_internal.h
drm_debugfs.c
drm_dma.c
drm_dp_helper.c drm/dp: move hw_mutex up the call stack 2016-04-20 15:41:55 +09:00
drm_dp_mst_topology.c drm/mst: Avoid processing partially received up/down message transactions 2017-07-27 15:06:09 -07:00
drm_drv.c drm: Fix an unwanted master inheritance v2 2015-12-04 12:28:14 +10:00
drm_edid.c drm/edid: Add 10 bpc quirk for LGD 764 panel in HP zBook 17 G2 2017-05-25 14:30:17 +02:00
drm_edid_load.c drm: Constify generic_edid_names[] 2015-09-08 13:45:52 +02:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c drm/fb_helper: Fix references to dev->mode_config.num_connector 2016-06-07 18:14:36 -07:00
drm_flip_work.c
drm_fops.c drm: Fix an unwanted master inheritance v2 2015-12-04 12:28:14 +10:00
drm_gem.c drm: Release driver tracking before making the object available again 2017-08-30 10:19:23 +02:00
drm_gem_cma_helper.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-11-10 09:33:06 -08:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm: move drm_class into drm_sysfs.c 2015-09-09 15:05:17 +02:00
drm_ioc32.c drm: Only use compat ioctl for addfb2 on X86/IA64 2016-09-24 10:07:43 +02:00
drm_ioctl.c drm: Enforce unlocked ioctl operation for kms driver ioctls 2015-10-16 15:50:54 +02:00
drm_irq.c drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2) 2016-03-03 15:07:23 -08:00
drm_legacy.h
drm_lock.c signals: kill block_all_signals() and unblock_all_signals() 2015-11-06 17:50:42 -08:00
drm_memory.c drm: Remove __OS_HAS_AGP 2015-09-30 10:44:48 +02:00
drm_mipi_dsi.c
drm_mm.c drm/mm: Do DRM_MM_CREATE_TOP adj_start calculation after color_adjust 2015-09-08 13:45:47 +02:00
drm_modes.c drm: Fix broken VT switch with video=1366x768 option 2017-02-01 08:30:52 +01:00
drm_modeset_lock.c drm/atomic: Make sure lock is held in trylock contexts. 2015-09-08 13:45:53 +02:00
drm_of.c drm: Introduce generic probe function for component based masters. 2015-10-20 12:01:29 +02:00
drm_panel.c
drm_pci.c drm/doc: Update docs about device instance setup 2015-09-30 10:06:06 +02:00
drm_plane_helper.c drm/atomic: Make prepare_fb/cleanup_fb only take state, v3. 2015-09-08 13:45:54 +02:00
drm_platform.c drm/doc: Update docs about device instance setup 2015-09-30 10:06:06 +02:00
drm_prime.c drm/prime: Pass the right module owner through to dma_buf_export() 2016-10-31 04:13:57 -06:00
drm_probe_helper.c drm: Don't overwrite UNVERFIED mode status to OK 2015-12-15 11:00:10 +10:00
drm_rect.c drm: Use DRM_ROTATE_MASK and DRM_REFLECT_MASK 2015-10-05 15:32:51 +02:00
drm_scatter.c
drm_sysfs.c Merge commit '06d1ee32a4' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next 2015-10-16 10:25:28 +10:00
drm_trace.h
drm_trace_points.c
drm_vm.c drm: Remove __OS_HAS_AGP 2015-09-30 10:44:48 +02:00
drm_vma_manager.c drm/gem: Use kref_get_unless_zero for the weak mmap references 2015-10-19 11:00:44 +02:00
Kconfig drm/vc4: Add KMS support for Raspberry Pi. 2015-10-21 10:33:12 +01:00
Makefile Merge tag 'drm-vc4-next-2015-10-21' of http://github.com/anholt/linux into drm-next 2015-10-22 10:31:17 +10:00