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2020-07-17drm: sun4i: hdmi: Fix inverted HPD resultChen-Yu Tsai
When the extra HPD polling in sun4i_hdmi was removed, the result of HPD was accidentally inverted. Fix this by inverting the check. Fixes: bda8eaa6dee7 ("drm: sun4i: hdmi: Remove extra HPD polling") Signed-off-by: Chen-Yu Tsai <wens@csie.org> Tested-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200711011030.21997-1-wens@kernel.org
2020-06-30drm: sun4i: hdmi: Remove extra HPD pollingChen-Yu Tsai
The HPD sense mechanism in Allwinner's old HDMI encoder hardware is more or less an input-only GPIO. Other GPIO-based HPD implementations directly return the current state, instead of polling for a specific state and returning the other if that times out. Remove the I/O polling from sun4i_hdmi_connector_detect() and directly return a known state based on the current reading. This also gets rid of excessive CPU usage by kworker as reported on Stack Exchange [1] and Armbian forums [2]. [1] https://superuser.com/questions/1515001/debian-10-buster-on-cubietruck-with-bug-in-sun4i-drm-hdmi [2] https://forum.armbian.com/topic/14282-headless-systems-and-sun4i_drm_hdmi-a10a20/ Fixes: 9c5681011a0c ("drm/sun4i: Add HDMI support") Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200629060032.24134-1-wens@kernel.org
2020-06-23drm/sun4i: mixer: Call of_dma_configure if there's an IOMMUMaxime Ripard
The main DRM device is actually a virtual device so it doesn't have the iommus property, which is instead on the DMA masters, in this case the mixers. Add a call to of_dma_configure with the mixers DT node but on the DRM virtual device to configure it in the same way than the mixers. Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/9a4daf438dd3f2fe07afb23688bfb793a0613d7d.1589378833.git-series.maxime@cerno.tech (cherry picked from commit b718102dbdfd0285ad559687a30e27cc9124e592) [Maxime: Applied to -fixes since it missed the merge window and display is broken without it] Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2020-06-11Merge tag 'drm-next-2020-06-11-1' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "One sun4i fix and a connector hotplug race The ast fix is for a regression in 5.6, and one of the i915 ones fixes an oops reported by dhowells. core: - fix race in connectors sending hotplug i915: - Avoid use after free in cmdparser - Avoid NULL dereference when probing all display encoders - Fixup to module parameter type sun4i: - clock divider fix ast: - 24/32 bpp mode setting fix" * tag 'drm-next-2020-06-11-1' of git://anongit.freedesktop.org/drm/drm: drm/ast: fix missing break in switch statement for format->cpp[0] case 4 drm/sun4i: hdmi ddc clk: Fix size of m divider drm/i915/display: Only query DP state of a DDI encoder drm/i915/params: fix i915.reset module param type drm/i915/gem: Mark the buffer pool as active for the cmdparser drm/connector: notify userspace on hotplug after register complete
2020-06-10drm/sun4i: hdmi ddc clk: Fix size of m dividerJernej Skrabec
m divider in DDC clock register is 4 bits wide. Fix that. Fixes: 9c5681011a0c ("drm/sun4i: Add HDMI support") Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200413095457.1176754-1-jernej.skrabec@siol.net
2020-06-03Merge tag 'media/v5.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - Media documentation is now split into admin-guide, driver-api and userspace-api books (a longstanding request from Jon); - The media Kconfig was reorganized, in order to make easier to select drivers and their dependencies; - The testing drivers now has a separate directory; - added a new driver for Rockchip Video Decoder IP; - The atomisp staging driver was resurrected. It is meant to work with 4 generations of cameras on Atom-based laptops, tablets and cell phones. So, it seems worth investing time to cleanup this driver and making it in good shape. - Added some V4L2 core ancillary routines to help with h264 codecs; - Added an ov2740 image sensor driver; - The si2157 gained support for Analog TV, which, in turn, added support for some cx231xx and cx23885 boards to also support analog standards; - Added some V4L2 controls (V4L2_CID_CAMERA_ORIENTATION and V4L2_CID_CAMERA_SENSOR_ROTATION) to help identifying where the camera is located at the device; - VIDIOC_ENUM_FMT was extended to support MC-centric devices; - Lots of drivers improvements and cleanups. * tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (503 commits) media: Documentation: media: Refer to mbus format documentation from CSI-2 docs media: s5k5baf: Replace zero-length array with flexible-array media: i2c: imx219: Drop <linux/clk-provider.h> and <linux/clkdev.h> media: i2c: Add ov2740 image sensor driver media: ov8856: Implement sensor module revision identification media: ov8856: Add devicetree support media: dt-bindings: ov8856: Document YAML bindings media: dvb-usb: Add Cinergy S2 PCIe Dual Port support media: dvbdev: Fix tuner->demod media controller link media: dt-bindings: phy: phy-rockchip-dphy-rx0: move rockchip dphy rx0 bindings out of staging media: staging: dt-bindings: phy-rockchip-dphy-rx0: remove non-used reg property media: atomisp: unify the version for isp2401 a0 and b0 versions media: atomisp: update TODO with the current data media: atomisp: adjust some code at sh_css that could be broken media: atomisp: don't produce errs for ignored IRQs media: atomisp: print IRQ when debugging media: atomisp: isp_mmu: don't use kmem_cache media: atomisp: add a notice about possible leak resources media: atomisp: disable the dynamic and reserved pools media: atomisp: turn on camera before setting it ...
2020-06-02Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm updates from Dave Airlie: "Highlights: - Core DRM had a lot of refactoring around managed drm resources to make drivers simpler. - Intel Tigerlake support is on by default - amdgpu now support p2p PCI buffer sharing and encrypted GPU memory Details: core: - uapi: error out EBUSY when existing master - uapi: rework SET/DROP MASTER permission handling - remove drm_pci.h - drm_pci* are now legacy - introduced managed DRM resources - subclassing support for drm_framebuffer - simple encoder helper - edid improvements - vblank + writeback documentation improved - drm/mm - optimise tree searches - port drivers to use devm_drm_dev_alloc dma-buf: - add flag for p2p buffer support mst: - ACT timeout improvements - remove drm_dp_mst_has_audio - don't use 2nd TX slot - spec recommends against it bridge: - dw-hdmi various improvements - chrontel ch7033 support - fix stack issues with old gcc hdmi: - add unpack function for drm infoframe fbdev: - misc fbdev driver fixes i915: - uapi: global sseu pinning - uapi: OA buffer polling - uapi: remove generated perf code - uapi: per-engine default property values in sysfs - Tigerlake GEN12 enabled. - Lots of gem refactoring - Tigerlake enablement patches - move to drm_device logging - Icelake gamma HW readout - push MST link retrain to hotplug work - bandwidth atomic helpers - ICL fixes - RPS/GT refactoring - Cherryview full-ppgtt support - i915 locking guidelines documented - require linear fb stride to be 512 multiple on gen9 - Tigerlake SAGV support amdgpu: - uapi: encrypted GPU memory handling - uapi: add MEM_SYNC IB flag - p2p dma-buf support - export VRAM dma-bufs - FRU chip access support - RAS/SR-IOV updates - Powerplay locking fixes - VCN DPG (powergating) enablement - GFX10 clockgating fixes - DC fixes - GPU reset fixes - navi SDMA fix - expose FP16 for modesetting - DP 1.4 compliance fixes - gfx10 soft recovery - Improved Critical Thermal Faults handling - resizable BAR on gmc10 amdkfd: - uapi: GWS resource management - track GPU memory per process - report PCI domain in topology radeon: - safe reg list generator fixes nouveau: - HD audio fixes on recent systems - vGPU detection (fail probe if we're on one, for now) - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it) - SVM improvements/fixes - NVIDIA format modifier support - Misc other fixes. adv7511: - HDMI SPDIF support ast: - allocate crtc state size - fix double assignment - fix suspend bochs: - drop connector register cirrus: - move to tiny drivers. exynos: - fix imported dma-buf mapping - enable runtime PM - fixes and cleanups mediatek: - DPI pin mode swap - config mipi_tx current/impedance lima: - devfreq + cooling device support - task handling improvements - runtime PM support pl111: - vexpress init improvements - fix module auto-load rcar-du: - DT bindings conversion to YAML - Planes zpos sanity check and fix - MAINTAINERS entry for LVDS panel driver mcde: - fix return value mgag200: - use managed config init stm: - read endpoints from DT vboxvideo: - use PCI managed functions - drop WC mtrr vkms: - enable cursor by default rockchip: - afbc support virtio: - various cleanups qxl: - fix cursor notify port hisilicon: - 128-byte stride alignment fix sun4i: - improved format handling" * tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm: (1401 commits) drm/amd/display: Fix potential integer wraparound resulting in a hang drm/amd/display: drop cursor position check in atomic test drm/amdgpu: fix device attribute node create failed with multi gpu drm/nouveau: use correct conflicting framebuffer API drm/vblank: Fix -Wformat compile warnings on some arches drm/amdgpu: Sync with VM root BO when switching VM to CPU update mode drm/amd/display: Handle GPU reset for DC block drm/amdgpu: add apu flags (v2) drm/amd/powerpay: Disable gfxoff when setting manual mode on picasso and raven drm/amdgpu: fix pm sysfs node handling (v2) drm/amdgpu: move gpu_info parsing after common early init drm/amdgpu: move discovery gfx config fetching drm/nouveau/dispnv50: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau/nouveau/hmm: fix migrate zero page to GPU drm/nouveau/nouveau/hmm: fix nouveau_dmem_chunk allocations drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST drm/nouveau/kms/nv50-: Move 8BPC limit for MST into nv50_mstc_get_modes() ...
2020-05-04sun6i: dsi: fix gcc-4.8Arnd Bergmann
Older compilers warn about initializers with incorrect curly braces: drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c: In function 'sun6i_dsi_encoder_enable': drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:720:8: error: missing braces around initializer [-Werror=missing-braces] union phy_configure_opts opts = { 0 }; ^ drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:720:8: error: (near initialization for 'opts.mipi_dphy') [-Werror=missing-braces] Use the GNU empty initializer extension to avoid this. Fixes: bb3b6fcb6849 ("sun6i: dsi: Convert to generic phy handling") Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200428215105.3928459-1-arnd@arndb.de
2020-04-29media: cec-gpio: handle gpiod_get_value errors correctlyHans Verkuil
gpiod_get_value() can return negative values if an error occurs. In several places this error code was ignored. Ensure that errors codes are handled correctly throughout the CEC pin framework and CEC pin drivers. The return code of the cec_pin_ops read() callback had to be changed from 'bool' to 'int', which mean the prototype of that callback in the sun4i drm driver also had to be changed. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-06drm/sun4i: tcon: Delete an error message in sun4i_tcon_init_irq()Markus Elfring
The function “platform_get_irq” can log an error already. Thus omit a redundant message for the exception handling in the calling function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/5a6cf5a7-3f27-5425-4d6a-550a17bc51e3@web.de
2020-04-02drm/sun4i: Use simple encoderThomas Zimmermann
The ingenic driver uses empty implementations for its encoders. Replace the code with the generic simple encoder. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-15-tzimmermann@suse.de
2020-03-24drm/sun4i: Sort includes in VI and UI layer codeJernej Skrabec
sun8i_mixer.h include is misplaced. Move it. Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-8-jernej.skrabec@siol.net
2020-03-24drm/sun4i: de2: Don't return de2_fmt_info structJernej Skrabec
Now that de2_fmt_info contains only DRM <-> HW format mapping, it doesn't make sense to return pointer to structure when searching by DRM format. Rework that to return only HW format instead. This doesn't make any functional change. Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-7-jernej.skrabec@siol.net
2020-03-24drm/sun4i: de2: csc_mode in de2 format struct is mostly redundantJernej Skrabec
For RGB formats CSC mode is always set to none and for YUV formats almost always set to YUV to RGB. Add a helper function to deduce CSC mode from format. Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-6-jernej.skrabec@siol.net
2020-03-24drm/sun4i: de2: rgb field in de2 format struct is redundantJernej Skrabec
drm_format_info structure already contains information if format is RGB or YUV. Use that instead. Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-5-jernej.skrabec@siol.net
2020-03-11Merge v5.6-rc5 into drm-nextDave Airlie
Requested my mripard for some misc patches that need this as a base. Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-03-03drm/sun4i: Fix DE2 VI layer format supportJernej Skrabec
DE2 VI layer doesn't support blending which means alpha channel is ignored. Replace all formats with alpha with "don't care" (X) channel. Fixes: 7480ba4d7571 ("drm/sun4i: Add support for DE2 VI planes") Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-4-jernej.skrabec@siol.net
2020-03-03drm/sun4i: Add separate DE3 VI layer formatsJernej Skrabec
DE3 VI layers support alpha blending, but DE2 VI layers do not. Additionally, DE3 VI layers support 10-bit RGB and YUV formats. Make a separate list for DE3. Fixes: c50519e6db4d ("drm/sun4i: Add basic support for DE3") Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-3-jernej.skrabec@siol.net
2020-03-03drm/sun4i: de2/de3: Remove unsupported VI layer formatsJernej Skrabec
YUV444 and YVU444 are planar formats, but HW format RGB888 is packed. This means that those two mappings were never correct. Remove them. Fixes: 60a3dcf96aa8 ("drm/sun4i: Add DE2 definitions for YUV formats") Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Link: https://patchwork.freedesktop.org/patch/msgid/20200224173901.174016-2-jernej.skrabec@siol.net
2020-02-26drm/bridge: Extend bridge API to disable connector creationLaurent Pinchart
Most bridge drivers create a DRM connector to model the connector at the output of the bridge. This model is historical and has worked pretty well so far, but causes several issues: - It prevents supporting more complex display pipelines where DRM connector operations are split over multiple components. For instance a pipeline with a bridge connected to the DDC signals to read EDID data, and another one connected to the HPD signal to detect connection and disconnection, will not be possible to support through this model. - It requires every bridge driver to implement similar connector handling code, resulting in code duplication. - It assumes that a bridge will either be wired to a connector or to another bridge, but doesn't support bridges that can be used in both positions very well (although there is some ad-hoc support for this in the analogix_dp bridge driver). In order to solve these issues, ownership of the connector should be moved to the display controller driver (where it can be implemented using helpers provided by the core). Extend the bridge API to allow disabling connector creation in bridge drivers as a first step towards the new model. The new flags argument to the bridge .attach() operation allows instructing the bridge driver to skip creating a connector. Unconditionally set the new flags argument to 0 for now to keep the existing behaviour, and modify all existing bridge drivers to return an error when connector creation is not requested as they don't support this feature yet. The change is based on the following semantic patch, with manual review and edits. @ rule1 @ identifier funcs; identifier fn; @@ struct drm_bridge_funcs funcs = { ..., .attach = fn }; @ depends on rule1 @ identifier rule1.fn; identifier bridge; statement S, S1; @@ int fn( struct drm_bridge *bridge + , enum drm_bridge_attach_flags flags ) { ... when != S + if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) { + DRM_ERROR("Fix bridge driver to make connector optional!"); + return -EINVAL; + } + S1 ... } @ depends on rule1 @ identifier rule1.fn; identifier bridge, flags; expression E1, E2, E3; @@ int fn( struct drm_bridge *bridge, enum drm_bridge_attach_flags flags ) { <... drm_bridge_attach(E1, E2, E3 + , flags ) ...> } @@ expression E1, E2, E3; @@ drm_bridge_attach(E1, E2, E3 + , 0 ) Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-10-laurent.pinchart@ideasonboard.com
2020-02-21drm/sun4i: tcon: Support LVDS on the A33Maxime Ripard
The A33 TCON supports LVDS, so we can toggle the support switch. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Chen-Yu Tsai <wens@csie.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200214120934.107924-1-maxime@cerno.tech
2020-02-20drm/sun4i: tcon: Support LVDS output on Allwinner A20Andrey Lebedev
A20 SoC (found in Cubieboard 2 among others) requires different LVDS set up procedure than A33. Timing controller (tcon) driver only implements sun6i-style procedure, that doesn't work on A20 (sun7i). Signed-off-by: Andrey Lebedev <andrey@lebedev.lt> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200219180858.4806-6-andrey.lebedev@gmail.com
2020-02-20drm/sun4i: tcon: Separate quirks for tcon0 and tcon1 on A20Andrey Lebedev
Timing controllers on A20 are not equivalent: tcon0 on A20 supports LVDS output and tcon1 does not. Separate the capabilities by introducing independent set of quirks for each of the tcons. Signed-off-by: Andrey Lebedev <andrey@lebedev.lt> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200219180858.4806-3-andrey.lebedev@gmail.com
2020-02-20drm/sun4i: tcon: Introduce LVDS setup routine settingAndrey Lebedev
Different sunxi flavors require slightly different sequence for enabling LVDS output. This allows to differentiate between them. Signed-off-by: Andrey Lebedev <andrey@lebedev.lt> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200219180858.4806-2-andrey.lebedev@gmail.com
2020-02-19drm/sun4i: dsi: Avoid hotplug race with DRM driver bindSamuel Holland
We need to make sure that the DRM driver is fully registered before allowing the panel to be attached. Otherwise, we may trigger a hotplug event before sun4i_framebuffer_init() sets up drm->mode_config.funcs, causing a NULL pointer dereference. Fixes: 1a2703bd7356 ("drm/sun4i: dsi: Allow binding the host without a panel") Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200217060906.15152-1-samuel@sholland.org
2020-02-17Merge v5.6-rc2 into drm-misc-nextMaxime Ripard
Lyude needs some patches in 5.6-rc2 and we didn't bring drm-misc-next forward yet, so it looks like a good occasion. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2020-02-14drm/sun4i: dsi: Remove incorrect use of runtime PMSamuel Holland
The driver currently uses runtime PM to perform some of the module initialization and cleanup. This has three problems: 1) There is no Kconfig dependency on CONFIG_PM, so if runtime PM is disabled, the driver will not work at all, since the module will never be initialized. 2) The driver does not ensure that the device is suspended when sun6i_dsi_probe() fails or when sun6i_dsi_remove() is called. It simply disables runtime PM. From the docs of pm_runtime_disable(): The device can be either active or suspended after its runtime PM has been disabled. And indeed, the device will likely still be active if sun6i_dsi_probe fails. For example, if the panel driver is not yet loaded, we have the following sequence: sun6i_dsi_probe() pm_runtime_enable() mipi_dsi_host_register() of_mipi_dsi_device_add(child) ...device_add()... __device_attach() pm_runtime_get_sync(dev->parent) -> Causes resume bus_for_each_drv() __device_attach_driver() -> No match for panel pm_runtime_put(dev->parent) -> Async idle request component_add() __component_add() try_to_bring_up_masters() try_to_bring_up_master() sun4i_drv_bind() component_bind_all() component_bind() sun6i_dsi_bind() -> Fails with -EPROBE_DEFER mipi_dsi_host_unregister() pm_runtime_disable() __pm_runtime_disable() __pm_runtime_barrier() -> Idle request is still pending cancel_work_sync() -> DSI host is *not* suspended! Since the device is not suspended, the clock and regulator are never disabled. The imbalance causes a WARN at devres free time. 3) The driver relies on being suspended when sun6i_dsi_encoder_enable() is called. The resume callback has a comment that says: Some part of it can only be done once we get a number of lanes, see sun6i_dsi_inst_init And then part of the resume callback only runs if dsi->device is not NULL (that is, if sun6i_dsi_attach() has been called). However, as the above call graph shows, the resume callback is guaranteed to be called before sun6i_dsi_attach(); it is called before child devices get their drivers attached. Therefore, part of the controller initialization will only run if the device is suspended between the calls to mipi_dsi_host_register() and component_add() (which ends up calling sun6i_dsi_encoder_enable()). Again, as shown by the above call graph, this is not the case. It appears that the controller happens to work because it is still initialized by the bootloader. Because the connector is hardcoded to always be connected, the device's runtime PM reference is not dropped until system suspend, when sun4i_drv_drm_sys_suspend() ends up calling sun6i_dsi_encoder_disable(). However, that is done as a system sleep PM hook, and at that point the system PM core has already taken another runtime PM reference, so sun6i_dsi_runtime_suspend() is not called. Likewise, by the time the PM core releases its reference, sun4i_drv_drm_sys_resume() has already re-enabled the encoder. So after system suspend and resume, we have *still never called* sun6i_dsi_inst_init(), and now that the rest of the display pipeline has been reset, the DSI host is unable to communicate with the panel, causing VBLANK timeouts. Fix all of these issues by inlining the runtime PM hooks into the encoder enable/disable functions, which are guaranteed to run after a panel is attached. This allows sun6i_dsi_inst_init() to be called unconditionally. Furthermore, this causes the hardware to be turned off during system suspend and reinitialized on resume, which was not happening before. Fixes: 133add5b5ad4 ("drm/sun4i: Add Allwinner A31 MIPI-DSI controller support") Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200211072858.30784-4-samuel@sholland.org
2020-02-14drm/sun4i: dsi: Allow binding the host without a panelSamuel Holland
Currently, the DSI host blocks binding the display pipeline until the panel is available. This unnecessarily prevents other display outpus from working, and adds logspam to dmesg when the panel driver is built as a module (the component master is unsuccessfully brought up several times during boot). Flip the dependency, instead requiring the host to be bound before the panel is attached. The panel driver provides no functionality outside of the display pipeline anyway. Since the panel is now probed after the DRM connector, we need a hotplug event to turn on the connector after the panel is attached. This has the added benefit of fixing panel module removal/insertion. Previously, the panel would be turned off when its module was removed. But because the connector state was hardcoded, nothing knew to turn the panel back on when it was re-attached. Now, with hotplug events available, the connector state will follow the panel module state, and the panel will be re-enabled properly. Fixes: 133add5b5ad4 ("drm/sun4i: Add Allwinner A31 MIPI-DSI controller support") Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200211072858.30784-3-samuel@sholland.org
2020-02-14drm/sun4i: dsi: Use NULL to signify "no panel"Samuel Holland
The continued use of an ERR_PTR to signify "no panel" outside of sun6i_dsi_attach is confusing because it is a double negative. Because the connector always reports itself as connected, there is also the possibility of sending an ERR_PTR to drm_panel_get_modes(), which would crash. Solve both of these by only storing the panel pointer if it is valid. Fixes: 133add5b5ad4 ("drm/sun4i: Add Allwinner A31 MIPI-DSI controller support") Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200211072858.30784-2-samuel@sholland.org
2020-02-14drm/sun4i: dsi: Remove unused drv from driver contextSamuel Holland
This member is never used, so remove it. Fixes: 133add5b5ad4 ("drm/sun4i: Add Allwinner A31 MIPI-DSI controller support") Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200211072858.30784-1-samuel@sholland.org
2020-02-14Merge tag 'drm-misc-fixes-2020-02-07' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes Fixes for v5.6: - Revert allow_fb_modifiers in sun4i, as it causes a regression for DE2 and DE3. - Fix null pointer deref in drm_dp_mst_process_up_req(). Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/672810c3-4212-0a46-337b-2cb855573fd2@linux.intel.com
2020-02-12Merge v5.6-rc1 into drm-misc-fixesMaarten Lankhorst
We're based on v5.6, need v5.6-rc1 at least. :) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2020-01-27Revert "drm/sun4i: drv: Allow framebuffer modifiers in mode config"Jernej Skrabec
This reverts commit 9db9c0cf5895e4ddde2814360cae7bea9282edd2. Setting mode_config.allow_fb_modifiers manually is completely unnecessary. It is set automatically by drm_universal_plane_init() based on the fact if modifier list is provided or not. Even more, it breaks DE2 and DE3 as they don't support any modifiers beside linear. Modifiers aware applications can be confused by provided empty modifier list - at least linear modifier should be included, but it's not for DE2 and DE3. Fixes: 9db9c0cf5895 ("drm/sun4i: drv: Allow framebuffer modifiers in mode config") Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200126065937.9564-1-jernej.skrabec@siol.net
2020-01-20Backmerge v5.5-rc7 into drm-nextDave Airlie
msm needs 5.5-rc4, go to the latest. Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-01-08drm/sun4i: drc: Make sure we enforce the clock rateMaxime Ripard
The DRC needs to run at 300MHz to be functional. This was done so far using assigned-clocks in the device tree, but that is easy to forget, and doesn't provide any other guarantee than the rate is going to be roughly the one requested at probe time. Therefore it's pretty fragile, so let's just use the exclusive clock API to enforce it. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200107165957.672435-2-maxime@cerno.tech
2020-01-08drm/sun4i: backend: Make sure we enforce the clock rateMaxime Ripard
The backend needs to run at 300MHz to be functional. This was done so far using assigned-clocks in the device tree, but that is easy to forget, and doesn't provide any other guarantee than the rate is going to be roughly the one requested at probe time. Therefore it's pretty fragile, so let's just use the exclusive clock API to enforce it. Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200107165957.672435-1-maxime@cerno.tech
2020-01-07drm/sun4i: tcon: Set RGB DCLK min. divider based on hardware modelChen-Yu Tsai
In commit 0b8e7bbde5e7 ("drm/sun4i: tcon: Set min division of TCON0_DCLK to 1.") it was assumed that all TCON variants support a minimum divider of 1 if only DCLK was used. However, the oldest generation of hardware only supports minimum divider of 4 if only DCLK is used. If a divider of 1 was used on this old hardware, some scrolling artifact would appear. A divider of 2 seemed OK, but a divider of 3 had artifacts as well. Set the minimum divider when outputing to parallel RGB based on the hardware model, with a minimum of 4 for the oldest (A10/A10s/A13/A20) hardware, and a minimum of 1 for the rest. A value is not set for the TCON variants lacking channel 0. This fixes the scrolling artifacts seen on my A13 tablet. Fixes: 0b8e7bbde5e7 ("drm/sun4i: tcon: Set min division of TCON0_DCLK to 1.") Cc: <stable@vger.kernel.org> # 5.4.x Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200107070113.28951-1-wens@kernel.org
2020-01-03Merge tag 'drm-misc-next-2020-01-02' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.6: UAPI Changes: - Commandline parser: Add support for panel orientation, and per-mode options. - Fix IOCTL naming for dma-buf heaps. Cross-subsystem Changes: - Rename DMA_HEAP_IOC_ALLOC to DMA_HEAP_IOCTL_ALLOC before it becomes abi. - Change DMA-BUF system-heap's name to system. - Fix leak in error handling in dma_heap_ioctl(), and make a symbol static. - Fix udma-buf cpu access. - Fix ti devicetree bindings. Core Changes: - Add CTA-861-G modes with VIC >= 193. - Change error handling and remove bug_on in *drm_dev_init. - Export drm_panel_of_backlight() correctly once more. - Add support for lvds decoders. - Convert drm/client and drm/(gem-,)fb-helper to drm-device based logging and update logging todo. Driver Changes: - Add support for dsi/px30 to rockchip. - Add fb damage support to virtio. - Use dma_resv locking wrappers in vc4, msm, etnaviv. - Make functions in virtio static, and perform some simplifications. - Add suspend support to sun4i. - Add A64 mipi dsi support to sun4i. - Add runtime pm suspend to komeda. - Associated driver fixes. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/efc11139-1653-86bc-1b0f-0aefde219850@linux.intel.com
2019-12-26drm/sun4i: dsi: Add Allwinner A64 MIPI DSI supportJagan Teki
The MIPI DSI controller in Allwinner A64 is similar to A33. But unlike A33, A64 doesn't have DSI_SCLK gating so add compatible for Allwinner A64 with uninitialized has_mod_clk driver. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Merlijn Wajer <merlijn@wizzup.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191222132229.30276-6-jagan@amarulasolutions.com
2019-12-26drm/sun4i: dsi: Handle bus clock via regmap_mmio_attach_clkJagan Teki
regmap has special API to enable the controller bus clock while initializing register space, and current driver is using devm_regmap_init_mmio_clk which require to specify bus clk_id argument as "bus" But, the usage of clocks are varies between different Allwinner DSI controllers. Clocking in A33 would need bus and mod clocks where as A64 would need only bus clock. Since A64 support only single bus clock, it is optional to specify the clock-names on the controller device tree node. So using NULL on clk_id would get the attached clock. To support clk_id as "bus" and "NULL" during clock enablement between controllers, this patch add generic code to handle the bus clock using regmap_mmio_attach_clk with associated regmap APIs. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191222132229.30276-5-jagan@amarulasolutions.com
2019-12-26drm/sun4i: dsi: Get the mod clock for A31Jagan Teki
As per the user manual, look like mod clock is not mandatory for all Allwinner MIPI DSI controllers, it is connected to CLK_DSI_SCLK for A31 and not available in A64. So, add compatible check for A31 and get mod clock accordingly. Tested-by: Merlijn Wajer <merlijn@wizzup.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191222132229.30276-4-jagan@amarulasolutions.com
2019-12-26drm: sun4i: Add support for suspending the display driverOndrej Jirman
Shut down the display engine during suspend. Signed-off-by: Ondrej Jirman <megous@megous.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191029112846.3604925-1-megous@megous.com
2019-12-18drm/sun4i: hdmi: Remove duplicate cleanup callsStefan Mavrodiev
When the HDMI unbinds drm_connector_cleanup() and drm_encoder_cleanup() are called. This also happens when the connector and the encoder are destroyed. This double call triggers a NULL pointer exception. The patch fixes this by removing the cleanup calls in the unbind function. Cc: <stable@vger.kernel.org> Fixes: 9c5681011a0c ("drm/sun4i: Add HDMI support") Signed-off-by: Stefan Mavrodiev <stefan@olimex.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191217124632.20820-1-stefan@olimex.com
2019-12-17Merge tag 'drm-misc-next-2019-12-16' of ↵Daniel Vetter
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.6: UAPI Changes: - Add support for DMA-BUF HEAPS. Cross-subsystem Changes: - mipi dsi definition updates, pulled into drm-intel as well. - Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim. - Remove support for dma-buf kmap/kunmap. - Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well. Core Changes: - Small cleanups to ttm. - Fix SCDC definition. - Assorted cleanups to core. - Add todo to remove load/unload hooks, and use generic fbdev emulation. - Assorted documentation updates. - Use blocking ww lock in ttm fault handler. - Remove drm_fb_helper_fbdev_setup/teardown. - Warning fixes with W=1 for atomic. - Use drm_debug_enabled() instead of drm_debug flag testing in various drivers. - Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted) - Various kconfig indentation fixes in core and drivers. - Fix freeing transactions in dp-mst correctly. - Sean Paul is steping down as core maintainer. :-( - Add lockdep annotations for atomic locks vs dma-resv. - Prevent use-after-free for a bad job in drm_scheduler. - Fill out all block sizes in the P01x and P210 definitions. - Avoid division by zero in drm/rect, and fix bounds. - Add drm/rect selftests. - Add aspect ratio and alternate clocks for HDMI 4k modes. - Add todo for drm_framebuffer_funcs and fb_create cleanup. - Drop DRM_AUTH for prime import/export ioctls. - Clear DP-MST payload id tables downstream when initializating. - Fix for DSC throughput definition. - Add extra FEC definitions. - Fix fake offset in drm_gem_object_funs.mmap. - Stop using encoder->bridge in core directly - Handle bridge chaining slightly better. - Add backlight support to drm/panel, and use it in many panel drivers. - Increase max number of y420 modes from 128 to 256, as preparation to add the new modes. Driver Changes: - Small fixes all over. - Fix documentation in vkms. - Fix mmap_sem vs dma_resv in nouveau. - Small cleanup in komeda. - Add page flip support in gma500 for psb/cdv. - Add ddc symlink in the connector sysfs directory for many drivers. - Add support for analogic an6345, and fix small bugs in it. - Add atomic modesetting support to ast. - Fix radeon fault handler VMA race. - Switch udl to use generic shmem helpers. - Unconditional vblank handling for mcde. - Miscellaneous fixes to mcde. - Tweak debug output from komeda using debugfs. - Add gamma and color transform support to komeda for DOU-IPS. - Add support for sony acx424AKP panel. - Various small cleanups to gma500. - Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation. - Add support for Logic PD Type 28 panel. - Use drm_panel_* wrapper functions in exynos/tegra/msm. - Add devicetree bindings for generic DSI panels. - Don't include drm_pci.h directly in many drivers. - Add support for begin/end_cpu_access in udmabuf. - Stop using drm_get_pci_dev in gma500 and mga200. - Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access. - Add devfreq thermal support to panfrost. - Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager. - meson: Add support for OSD1 plane AFBC commit. - Stop displaying garbage when toggling ast primary plane on/off. - More cleanups and fixes to UDL. - Add D32 suport to komeda. - Remove globle copy of drm_dev in gma500. - Add support for Boe Himax8279d MIPI-DSI LCD panel. - Add support for ingenic JZ4770 panel. - Small null pointer deference fix in ingenic. - Remove support for the special tfp420 driver, as there is a generic way to do it. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ba73535a-9334-5302-2e1f-5208bd7390bd@linux.intel.com
2019-12-14drm/sun4i: Remove unneeded semicolon in sun4i_layer.czhengbin
Fixes coccicheck warning: drivers/gpu/drm/sun4i/sun4i_layer.c:253:3-4: Unneeded semicolon drivers/gpu/drm/sun4i/sun4i_layer.c:257:2-3: Unneeded semicolon Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: zhengbin <zhengbin13@huawei.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/1576317091-24968-3-git-send-email-zhengbin13@huawei.com
2019-12-14drm/sun4i: Remove unneeded semicolon in sun8i_mixer.czhengbin
Fixes coccicheck warning: drivers/gpu/drm/sun4i/sun8i_mixer.c:289:3-4: Unneeded semicolon drivers/gpu/drm/sun4i/sun8i_mixer.c:292:2-3: Unneeded semicolon drivers/gpu/drm/sun4i/sun8i_mixer.c:302:3-4: Unneeded semicolon drivers/gpu/drm/sun4i/sun8i_mixer.c:305:2-3: Unneeded semicolon Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: zhengbin <zhengbin13@huawei.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/1576317091-24968-2-git-send-email-zhengbin13@huawei.com
2019-12-09drm/panel: decouple connector from drm_panelSam Ravnborg
To facilitate moving connector creation to display drivers, decouple the drm_connector from drm_panel. This patch adds a connector argument to drm_panel_get_modes(). All users of drm_panel_get_modes() already had the connector available, so updating users was trivial. With this patch drm_panel no longer keeps a reference to the drm_connector. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Stefan Agner <stefan@agner.ch> Cc: Alison Wang <alison.wang@nxp.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: CK Hu <ck.hu@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Marek Vasut <marex@denx.de> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: Sandy Huang <hjc@rock-chips.com> Cc: "Heiko Stübner" <heiko@sntech.de> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Torsten Duwe <duwe@lst.de> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Cc: Icenowy Zheng <icenowy@aosc.io> Cc: Sean Paul <seanpaul@chromium.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Boris Brezillon <boris.brezillon@collabora.com> Cc: Hariprasad Kelam <hariprasad.kelam@gmail.com> Cc: Alexios Zavras <alexios.zavras@intel.com> Cc: Brian Masney <masneyb@onstation.org> Cc: Rob Clark <robdclark@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Allison Randal <allison@lohutok.net> Cc: Shayenne Moura <shayenneluzmoura@gmail.com> Cc: Abhinav Kumar <abhinavk@codeaurora.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-mediatek@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-tegra@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20191207140353.23967-7-sam@ravnborg.org
2019-11-27Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm updates from Dave Airlie: "Lots of stuff in here, though it hasn't been too insane this merge apart from dealing with the security fun. uapi: - export different colorspace properties on DP vs HDMI - new fourcc for ARM 16x16 block format - syncobj: allow querying last submitted timeline value - DRM_FORMAT_BIG_ENDIAN defined as unsigned core: - allow using gem vma manager in ttm - connector/encoder/bridge doc fixes - allow more than 3 encoders for a connector - displayport mst suspend/resume reprobing support - vram lazy unmapping, uniform vram mm and gem vram - edid cleanups + AVI informframe bar info - displayport helpers - dpcd parser added dp_cec: - Allow a connector to be associated with a cec device ttm: - pipelining with no_gpu_wait fix - always keep BOs on the LRU sched: - allow free_job routine to sleep i915: - Block userptr from mappable GTT - i915 perf uapi versioning - OA stream dynamic reconfiguration - make context persistence optional - introduce DRM_I915_UNSTABLE Kconfig - add fake lmem testing under unstable - BT.2020 support for DP MSA - struct mutex elimination - Tigerlake display/PLL/power management improvements - Jasper Lake PCH support - refactor PMU for multiple GPUs - Icelake firmware update - Split out vga + switcheroo code amdgpu: - implement dma-buf import/export without helpers - vega20 RAS enablement - DC i2c over aux fixes - renoir GPU reset - DC HDCP support - BACO support for CI/VI asics - MSI-X support - Arcturus EEPROM support - Arcturus VCN encode support - VCN dynamic powergating on RV/RV2 amdkfd: - add navi12/14/renoir support to kfd radeon: - SI dpm fix ported from amdgpu - fix bad DMA on ppc platforms gma500: - memory leak fixes qxl: - convert to new gem mmap exynos: - build warning fix komeda: - add aclk sysfs attribute v3d: - userspace cleanup uapi change i810: - fix for underflow in dispatch ioctls ast: - refactor show_cursor mgag200: - refactor show_cursor arcgpu: - encoder finding improvements mediatek: - mipi_tx, dsi and partial crtc support for MT8183 SoC - rotation support meson: - add suspend/resume support omap: - misc refactors tegra: - DisplayPort support for Tegra 210, 186 and 194. - IOMMU-backed DMA API fixes panfrost: - fix lockdep issue - simplify devfreq integration rcar-du: - R8A774B1 SoC support - fixes for H2 ES2.0 sun4i: - vcc-dsi regulator support virtio-gpu: - vmexit vs spinlock fix - move to gem shmem helpers - handle large command buffers with cma" * tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm: (1855 commits) drm/amdgpu: invalidate mmhub semaphore workaround in gmc9/gmc10 drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub drm/amd/amdgpu/sriov skip RLCG s/r list for arcturus VF. drm/amd/amdgpu/sriov temporarily skip ras,dtm,hdcp for arcturus VF drm/amdgpu/gfx10: re-init clear state buffer after gpu reset merge fix for "ftrace: Rework event_create_dir()" drm/amdgpu: Update Arcturus golden registers drm/amdgpu/gfx10: fix out-of-bound mqd_backup array access drm/amdgpu/gfx10: explicitly wait for cp idle after halt/unhalt Revert "drm/amd/display: enable S/G for RAVEN chip" drm/amdgpu: disable gfxoff on original raven drm/amdgpu: remove experimental flag for Navi14 drm/amdgpu: disable gfxoff when using register read interface drm/amdgpu/powerplay: properly set PP_GFXOFF_MASK (v2) drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2 drm/radeon: fix bad DMA from INTERRUPT_CNTL2 drm/amd/display: Fix debugfs on MST connectors drm/amdgpu/nv: add asic func for fetching vbios from rom directly drm/amdgpu: put flush_delayed_work at first drm/amdgpu/vcn2.5: fix the enc loop with hw fini ...
2019-11-25drm/sun4i: Fix Kconfig indentationKrzysztof Kozlowski
Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191121132924.29485-1-krzk@kernel.org
2019-11-13drm/sun4i: tcon: Set min division of TCON0_DCLK to 1.Yunhao Tian
The datasheet of V3s (and various other chips) wrote that TCON0_DCLK_DIV can be >= 1 if only dclk is used, and must >= 6 if dclk1 or dclk2 is used. As currently neither dclk1 nor dclk2 is used (no writes to these bits), let's set minimal division to 1. If this minimal division is 6, some common dot clock frequencies can't be produced (e.g. 30MHz will not be possible and will fallback to 25MHz), which is obviously not an expected behaviour. Signed-off-by: Yunhao Tian <t123yh@outlook.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/linux-arm-kernel/MN2PR08MB57905AD8A00C08DA219377C989760@MN2PR08MB5790.namprd08.prod.outlook.com/
generated by cgit (git 2.34.1) at 2024-05-30 18:35:40 +0000