Lyude Paul 0489d808a5 drm/nouveau/i2c: Enable i2c pads & busses during preinit ... commit 7cb95eeea6 upstream. It turns out that while disabling i2c bus access from software when the GPU is suspended was a step in the right direction with: commit 342406e4fb ("drm/nouveau/i2c: Disable i2c bus access after ->fini()") We also ended up accidentally breaking the vbios init scripts on some older Tesla GPUs, as apparently said scripts can actually use the i2c bus. Since these scripts are executed before initializing any subdevices, we end up failing to acquire access to the i2c bus which has left a number of cards with their fan controllers uninitialized. Luckily this doesn't break hardware - it just means the fan gets stuck at 100%. This also means that we've always been using our i2c busses before initializing them during the init scripts for older GPUs, we just didn't notice it until we started preventing them from being used until init. It's pretty impressive this never caused us any issues before! So, fix this by initializing our i2c pad and busses during subdev pre-init. We skip initializing aux busses during pre-init, as those are guaranteed to only ever be used by nouveau for DP aux transactions. Signed-off-by: Lyude Paul <lyude@redhat.com> Tested-by: Marc Meledandri <m.meledandri@gmail.com> Fixes: 342406e4fb ("drm/nouveau/i2c: Disable i2c bus access after ->fini()") Cc: stable@vger.kernel.org Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-07-26 09:14:25 +02:00
..
amd	drm/amdgpu/gfx9: use reset default for PA_SC_FIFO_SIZE	2019-07-10 09:53:43 +02:00
arc
arm	drm/arm/hdlcd: Allow a bit of clock tolerance	2019-06-25 11:35:58 +08:00
armada	drm/armada: remove obsolete fb unreferencing kfifo and workqueue	2018-07-30 11:53:06 +01:00
ast	drm/ast: Fix connector leak during driver unload	2018-12-21 14:15:23 +01:00
atmel-hlcdc
bochs
bridge	drm/bridge: adv7511: Fix low refresh rate selection	2019-06-15 11:54:03 +02:00
cirrus	drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up	2019-04-20 09:16:00 +02:00
etnaviv	drm/etnaviv: add missing failure path to destroy suballoc	2019-07-10 09:53:43 +02:00
exynos	drm/exynos/mixer: fix MIXER shadow registry synchronisation code	2019-04-20 09:15:58 +02:00
fsl-dcu
gma500	drm/gma500/cdv: Check vbt config bits when detecting lvds panels	2019-06-11 12:20:54 +02:00
hisilicon	drm/hisilicon: hibmc: Do not carry error code in HiBMC framebuffer pointer	2018-11-21 09:19:10 +01:00
i2c	Merge branch 'drm-tda9950-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-fixes	2018-10-04 10:32:14 +10:00
i810
i915	drm/i915/dmc: protect against reading random memory	2019-07-10 09:53:41 +02:00
imx	drm/imx: only send event on crtc disable if kept disabled	2019-07-10 09:53:44 +02:00
lib
mediatek	drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()	2019-07-10 09:53:34 +02:00
meson	drm/meson: Uninstall IRQ handler	2019-05-04 09:20:20 +02:00
mga
mgag200
msm	drm/msm: fix fb references in async update	2019-06-11 12:20:54 +02:00
mxsfb
nouveau	drm/nouveau/i2c: Enable i2c pads & busses during preinit	2019-07-26 09:14:25 +02:00
omapdrm	drm/omap: dsi: Fix PM for display blank with paired dss_pll calls	2019-05-31 06:46:34 -07:00
panel	drm/panel: otm8009a: Add delay at the end of initialization	2019-05-31 06:46:26 -07:00
pl111	drm/pl111: Initialize clock spinlock early	2019-06-15 11:54:00 +02:00
qxl
r128
radeon	drm/radeon: prefer lower reference dividers	2019-06-11 12:20:55 +02:00
rcar-du	drm: rcar-du: add missing of_node_put	2019-04-05 22:33:10 +02:00
rockchip	drm/rockchip: shutdown drm subsystem on shutdown	2019-06-09 09:17:23 +02:00
savage
scheduler	drm/scheduler: fix param documentation	2018-08-09 11:57:39 -05:00
selftests
shmobile
sis
sti
stm
sun4i	drm/sun4i: Fix sun8i HDMI PHY configuration for > 148.5 MHz	2019-06-09 09:17:23 +02:00
tdfx
tegra	drm/tegra: gem: Fix CPU-cache maintenance for BO's allocated using get_pages()	2019-06-09 09:17:22 +02:00
tilcdc	drm-misc-next for 4.19:	2018-07-20 10:46:49 +10:00
tinydrm	tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfers	2019-05-31 06:46:32 -07:00
ttm	drm/ttm: fix out-of-bounds read in ttm_put_pages() v2	2019-04-27 09:36:37 +02:00
tve200
udl	drm/udl: move to embedding drm device inside udl device.	2019-07-21 09:03:18 +02:00
v3d	drm/v3d: Handle errors from IRQ setup.	2019-05-31 06:46:34 -07:00
vc4	drm/vc4: fix fb references in async update	2019-06-15 11:54:11 +02:00
vgem	drm/vgem: fix use-after-free when drm_gem_handle_create() fails	2019-04-03 06:26:26 +02:00
via
virtio
vkms	drm/vkms: Bugfix extra vblank frame	2019-04-05 22:33:12 +02:00
vmwgfx	drm/vmwgfx: fix a warning due to missing dma_parms	2019-07-14 08:11:09 +02:00
xen
zte
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c	drm: don't block fb changes for async plane updates	2019-06-11 12:20:56 +02:00
drm_atomic.c	drm: Get ref on CRTC commit object when waiting for flip_done	2018-10-18 14:23:13 -04:00
drm_auth.c	drm: set is_master to 0 upon drm_new_set_master() failure	2018-12-08 12:59:07 +01:00
drm_blend.c
drm_bridge.c
drm_bufs.c	drm: return -EFAULT if copy_to_user() fails	2019-07-14 08:11:14 +02:00
drm_cache.c
drm_client.c	drm/cma-helper: Fix crash in fbdev error path	2018-10-02 13:03:34 +02:00
drm_color_mgmt.c
drm_connector.c	drm/connector: Fix typo in drm_connector_list_iter_next()	2018-07-16 13:18:09 -04:00
drm_context.c	drm: re-enable error handling	2018-07-16 10:01:19 -04:00
drm_crtc_helper_internal.h
drm_crtc_helper.c
drm_crtc_internal.h
drm_crtc.c	drm/lease: Make sure implicit planes are leased	2019-06-09 09:17:23 +02:00
drm_debugfs_crc.c
drm_debugfs.c	drm/atomic: Use drm_drv_uses_atomic_modeset() for debugfs creation	2018-09-17 19:24:37 -04:00
drm_dma.c
drm_dp_aux_dev.c
drm_dp_cec.c	drm_dp_cec.c: fix formatting typo: %pdH -> %phD	2018-07-28 15:50:40 -03:00
drm_dp_dual_mode_helper.c
drm_dp_helper.c	drm/dp_helper: Add DP aux channel tracing	2018-07-16 11:47:53 -04:00
drm_dp_mst_topology.c	drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers	2019-04-05 22:33:17 +02:00
drm_drv.c	drm/drv: Hold ref on parent device during drm_device lifetime	2019-05-31 06:46:34 -07:00
drm_dumb_buffers.c
drm_edid_load.c
drm_edid.c	drm: add fallback override/firmware EDID modes workaround	2019-06-19 08:18:07 +02:00
drm_encoder_slave.c
drm_encoder.c
drm_fb_cma_helper.c	drm/cma-helper: Fix crash in fbdev error path	2018-10-02 13:03:34 +02:00
drm_fb_helper.c	drm/fb-helper: generic: Don't take module ref for fbcon	2019-07-10 09:53:45 +02:00
drm_file.c	drm: Wake up next in drm_read() chain if we are forced to putback the event	2019-05-31 06:46:34 -07:00
drm_flip_work.c
drm_fourcc.c	drm/fourcc: Add is_yuv field to drm_format_info to denote if the format is yuv	2018-07-18 16:56:45 +01:00
drm_framebuffer.c
drm_gem_cma_helper.c
drm_gem_framebuffer_helper.c
drm_gem.c
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h	drm/lease: Send a distinct uevent	2018-12-13 09:16:21 +01:00
drm_ioc32.c	drm: return -EFAULT if copy_to_user() fails	2019-07-14 08:11:14 +02:00
drm_ioctl.c	drm/ioctl: Fix Spectre v1 vulnerabilities	2018-12-29 13:37:59 +01:00
drm_irq.c
drm_kms_helper_common.c
drm_lease.c	drm: Use array_size() when creating lease	2019-02-20 10:25:49 +01:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c	drm: Add support for pps and compression mode command packet	2018-07-25 07:51:05 -04:00
drm_mm.c
drm_mode_config.c
drm_mode_object.c	drm: Reorder set_property_atomic to avoid returning with an active ww_ctx	2019-03-27 14:14:42 +09:00
drm_modes.c	drm/modes: Prevent division by zero htotal	2019-02-15 08:10:12 +01:00
drm_modeset_helper.c
drm_modeset_lock.c
drm_of.c	drm/doc: Include drm_of.c helpers	2018-07-13 18:40:28 +02:00
drm_panel_orientation_quirks.c	drm: panel-orientation-quirks: Add quirk for GPD MicroPC	2019-07-10 09:53:37 +02:00
drm_panel.c	Revert "drm/panel: Add device_link from panel device to DRM device"	2018-09-27 11:00:42 -04:00
drm_pci.c
drm_plane_helper.c
drm_plane.c	drm/lease: Make sure implicit planes are leased	2019-06-09 09:17:23 +02:00
drm_prime.c
drm_print.c	drm: Add puts callback for the coredump printer	2018-07-30 08:49:41 -04:00
drm_probe_helper.c	drm: add fallback override/firmware EDID modes workaround	2019-06-19 08:18:07 +02:00
drm_property.c
drm_rect.c
drm_scatter.c
drm_scdc_helper.c
drm_simple_kms_helper.c
drm_syncobj.c	drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set	2018-09-26 10:39:14 -04:00
drm_sysfs.c	drm/lease: Send a distinct uevent	2018-12-13 09:16:21 +01:00
drm_trace_points.c
drm_trace.h
drm_vblank.c
drm_vm.c
drm_vma_manager.c
drm_writeback.c	drm: writeback: Fix doc that says connector should be disconnected	2018-07-16 16:35:27 +01:00
Kconfig	drm/fb_helper: Allow leaking fbdev smem_start	2019-01-16 22:04:35 +01:00
Makefile