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linux/drivers/gpu/drm/meson
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Artem Lapkin fa0c16caf3 drm: meson_drv add shutdown function 
Problem: random stucks on reboot stage about 1/20 stuck/reboots
// debug kernel log
[    4.496660] reboot: kernel restart prepare CMD:(null)
[    4.498114] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown begin
[    4.503949] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown domain 0:VPU...
...STUCK...

Solution: add shutdown function to meson_drm driver
// debug kernel log
[    5.231896] reboot: kernel restart prepare CMD:(null)
[    5.246135] [drm:meson_drv_shutdown]
...
[    5.259271] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown begin
[    5.274688] meson_ee_pwrc c883c000.system-controller:power-controller: shutdown domain 0:VPU...
[    5.338331] reboot: Restarting system
[    5.358293] psci: PSCI_0_2_FN_SYSTEM_RESET reboot_mode:0 cmd:(null)
bl31 reboot reason: 0xd
bl31 reboot reason: 0x0
system cmd  1.
...REBOOT...

Tested: on VIM1 VIM2 VIM3 VIM3L khadas sbcs - 1000+ successful reboots
and Odroid boards, WeTek Play2 (GXBB)

Fixes: bbbe775ec5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Artem Lapkin <art@khadas.com>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210302042202.3728113-1-art@khadas.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2021-03-11 11:11:33 +01:00
..
Kconfig
Makefile
meson_crtc.c drm/atomic: Pass the full state to CRTC atomic begin and flush 2020-11-02 12:37:49 +01:00
meson_crtc.h
meson_drv.c drm: meson_drv add shutdown function 2021-03-11 11:11:33 +01:00
meson_drv.h drm/meson: overlay: setup overlay for Amlogic FBC 2020-07-03 10:12:29 +02:00
meson_dw_hdmi.c drm/meson: dw-hdmi: Enable the iahb clock early enough 2020-11-20 16:41:10 +01:00
meson_dw_hdmi.h
meson_osd_afbcd.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
meson_osd_afbcd.h
meson_overlay.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
meson_overlay.h
meson_plane.c drm/meson: Remove unneeded semicolon 2020-04-28 11:17:27 +02:00
meson_plane.h
meson_rdma.c
meson_rdma.h
meson_registers.h Linux 5.8-rc6 2020-07-24 08:48:05 +10:00
meson_vclk.c drm/meson/meson_vclk: Make two local functions static 2020-11-17 18:34:14 +01:00
meson_vclk.h drm/meson: add mode selection limits against specific SoC revisions 2020-05-05 10:19:33 +02:00
meson_venc.c drm/meson/meson_venc: Make local function 'meson_venc_hdmi_get_dmt_vmode' static 2020-11-17 18:34:14 +01:00
meson_venc.h
meson_venc_cvbs.c drm: Nuke mode->vrefresh 2020-05-27 14:31:42 +03:00
meson_venc_cvbs.h
meson_viu.c drm/meson: viu: fix setting the OSD burst length in VIU_OSD1_FIFO_CTRL_STAT 2020-07-02 10:36:56 +02:00
meson_viu.h
meson_vpp.c
meson_vpp.h