linux.git/drivers/gpu/drm/bridge, branch v4.16-rc2

BackMerge tag 'v4.15-rc4' into drm-next

2017-12-19T11:37:24+00:00

Linux 4.15-rc4

Daniel requested it to fix some messy conflicts.

drm/bridge: analogix dp: Fix runtime PM state in get_modes() callback

2017-12-07T14:42:39+00:00

get_modes() callback might be called asynchronously from the DRM core and
it is not synchronized with bridge_enable(), which sets proper runtime PM
state of the main DP device. Fix this by calling pm_runtime_get_sync()
before calling drm_get_edid(), which in turn calls drm_dp_i2c_xfer() and
analogix_dp_transfer() to ensure that main DP device is runtime active
when doing any access to its registers.

This fixes the following kernel issue on Samsung Exynos5250 Snow board:
Unhandled fault: imprecise external abort (0x406) at 0x00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: : 406 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 62 Comm: kworker/0:2 Not tainted 4.13.0-rc2-00364-g4a97a3da420b #3357
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events output_poll_execute
task: edc14800 task.stack: edcb2000
PC is at analogix_dp_transfer+0x15c/0x2fc
LR is at analogix_dp_transfer+0x134/0x2fc
pc : []    lr : []    psr: 60000013
sp : edcb3be8  ip : 0000002a  fp : 00000001
r10: 00000000  r9 : edcb3cd8  r8 : edcb3c40
r7 : 00000000  r6 : edd3b380  r5 : edd3b010  r4 : 00000064
r3 : 00000000  r2 : f0ad3000  r1 : edcb3c40  r0 : edd3b010
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 10c5387d  Table: 4000406a  DAC: 00000051
Process kworker/0:2 (pid: 62, stack limit = 0xedcb2210)
Stack: (0xedcb3be8 to 0xedcb4000)
[] (analogix_dp_transfer) from [] (drm_dp_i2c_do_msg+0x8c/0x2b4)
[] (drm_dp_i2c_do_msg) from [] (drm_dp_i2c_xfer+0x98/0x214)
[] (drm_dp_i2c_xfer) from [] (__i2c_transfer+0x140/0x29c)
[] (__i2c_transfer) from [] (i2c_transfer+0x70/0xe4)
[] (i2c_transfer) from [] (drm_do_probe_ddc_edid+0xb4/0x114)
[] (drm_do_probe_ddc_edid) from [] (drm_probe_ddc+0x18/0x28)
[] (drm_probe_ddc) from [] (drm_get_edid+0x124/0x2d4)
[] (drm_get_edid) from [] (analogix_dp_get_modes+0x90/0x114)
[] (analogix_dp_get_modes) from [] (drm_helper_probe_single_connector_modes+0x198/0x68c)
[] (drm_helper_probe_single_connector_modes) from [] (drm_setup_crtcs+0x1b4/0xd18)
[] (drm_setup_crtcs) from [] (drm_fb_helper_hotplug_event+0x94/0xd0)
[] (drm_fb_helper_hotplug_event) from [] (drm_kms_helper_hotplug_event+0x24/0x28)
[] (drm_kms_helper_hotplug_event) from [] (output_poll_execute+0x6c/0x174)
[] (output_poll_execute) from [] (process_one_work+0x188/0x3fc)
[] (process_one_work) from [] (worker_thread+0x30/0x4b8)
[] (worker_thread) from [] (kthread+0x128/0x164)
[] (kthread) from [] (ret_from_fork+0x14/0x24)
Code: 0a000002 ea000009 e2544001 0a00004a (e59537c8)
---[ end trace cddc7919c79f7878 ]---

Reported-by: Misha Komarovskiy 
CC: stable@vger.kernel.org # v4.10+
Signed-off-by: Marek Szyprowski 

Signed-off-by: Archit Taneja 
Link: https://patchwork.freedesktop.org/patch/msgid/20171121074936.22520-1-m.szyprowski@samsung.com

Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2017-12-03T19:42:49+00:00

Cross-subsystem Changes:

- device tree doc for the Mitsubishi AA070MC01 and Tianma TM070RVHG71
panels (Lukasz Majewski) and for a 2nd endpoint on stm32 (Philippe Cornu)

Core Changes:

The most important changes are:

- Add drm_driver .last_close and .output_poll_changed helpers to reduce
fbdev emulation footprint in drivers (Noralf)
- Fix plane clipping in core and for vmwgfx (Ville)

Then we have a bunch of of improvement for print and debug such as the
addition of a framebuffer debugfs file. ELD connector, HDMI and
improvements.  And a bunch of misc improvements, clean ups and style
changes and doc updates

[airlied: drop eld bits from amdgpu_dm]

Driver Changes:

- sii8620: filter unsupported modes and add DVI mode support (Maciej Purski)
- rockchip: analogix_dp: Remove unnecessary init code (Jeffy Chen)
- virtio, cirrus: add fb create_handle support to enable screenshots(Lepton Wu)
- virtio: replace reference/unreference with get/put (Aastha Gupta)
- vc4, gma500: Convert timers to use timer_setup() (Kees Cook)
- vc4: Reject HDMI modes with too high of clocks (Eric)
- vc4: Add support for more pixel formats (Dave Stevenson)
- stm: dsi: Rename driver name to "stm32-display-dsi" (Philippe Cornu)
- stm: ltdc: add a 2nd endpoint (Philippe Cornu)
- via: use monotonic time for VIA_WAIT_IRQ (Arnd Bergmann)

* tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc: (96 commits)
  drm/bridge: tc358767: add copyright lines
  MAINTAINERS: change maintainer for Rockchip drm drivers
  drm/vblank: Fix vblank timestamp debugs
  drm/via: use monotonic time for VIA_WAIT_IRQ
  dma-buf: Fix ifnullfree.cocci warnings
  drm/printer: Add drm_vprintf()
  drm/edid: Allow HDMI infoframe without VIC or S3D
  video/hdmi: Allow "empty" HDMI infoframes
  dma-buf/fence: Fix lock inversion within dma-fence-array
  drm/sti: Handle return value of platform_get_irq_byname
  drm/vc4: Add support for NV21 and NV61.
  drm/vc4: Use .pixel_order instead of custom .flip_cbcr
  drm/vc4: Add support for DRM_FORMAT_RGB888 and DRM_FORMAT_BGR888
  drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
  drm: Check crtc_state->enable rather than crtc->enabled in drm_plane_helper_check_state()
  drm/vmwgfx: Try to fix plane clipping
  drm/vmwgfx: Use drm_plane_helper_check_state()
  drm/vmwgfx: Remove bogus crtc coords vs fb size check
  gpu: gma500: remove unneeded DRIVER_LICENSE #define
  drm: don't link DP aux i2c adapter to the hardware device node
  ...

drm/bridge: tc358767: add copyright lines

2017-11-30T07:11:35+00:00

Add copyright lines for Zodiac who paid for driver development.

Signed-off-by: Andrey Gusakov 
Acked-by: Chris Healy 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-8-git-send-email-andrey.gusakov@cogentembedded.com

drm/bridge: tc358767: fix 1-lane behavior

2017-11-30T06:56:18+00:00

Use drm_dp_channel_eq_ok helper

Acked-by: Philipp Zabel 
Signed-off-by: Andrey Gusakov 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-7-git-send-email-andrey.gusakov@cogentembedded.com

drm/bridge: tc358767: fix AUXDATAn registers access

2017-11-30T06:56:12+00:00

First four bytes should go to DP0_AUXWDATA0. Due to bug if
len > 4 first four bytes was writen to DP0_AUXWDATA1 and all
data get shifted by 4 bytes. Fix it.

Acked-by: Philipp Zabel 
Signed-off-by: Andrey Gusakov 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-6-git-send-email-andrey.gusakov@cogentembedded.com

drm/bridge: tc358767: fix timing calculations

2017-11-30T06:56:08+00:00

Fields in HTIM01 and HTIM02 regs should be even.
Recomended thresh_dly value is max_tu_symbol.
Remove set of VPCTRL0.VSDELAY as it is related to DSI input
interface. Currently driver supports only DPI.

Acked-by: Philipp Zabel 
Signed-off-by: Andrey Gusakov 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-5-git-send-email-andrey.gusakov@cogentembedded.com

drm/bridge: tc358767: fix DP0_MISC register set

2017-11-30T06:56:01+00:00

Remove shift from TU_SIZE_RECOMMENDED define as it used to
calculate max_tu_symbols.

Acked-by: Philipp Zabel 
Signed-off-by: Andrey Gusakov 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-4-git-send-email-andrey.gusakov@cogentembedded.com

drm/bridge: tc358767: filter out too high modes

2017-11-30T06:55:53+00:00

Pixel clock limitation for DPI is 154 MHz. Do not accept modes
with higher pixel clock rate.

Reviewed-by: Andrzej Hajda 
Signed-off-by: Andrey Gusakov 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-3-git-send-email-andrey.gusakov@cogentembedded.com

drm/bridge: tc358767: do no fail on hi-res displays

2017-11-30T06:55:17+00:00

Do not fail data rates higher than 2.7 and more than 2 lanes.
Try to fall back to 2.7Gbps and 2 lanes.

Acked-by: Philipp Zabel 
Reviewed-by: Andrzej Hajda 
Signed-off-by: Andrey Gusakov 
Signed-off-by: Andrzej Hajda 
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-2-git-send-email-andrey.gusakov@cogentembedded.com