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2018-09-05dt-bindings: display: Add compatible for A64 DE2 display pipelineJagan Teki1-0/+5
Allwinner A64 has a DE2 display pipeline. The TCONs are similar to the ones in A83T, but the mixers are new (similar to the later R40 SoC). This patch adds dt-binding documentation for A64 DE2 display pipeline. Signed-off-by: Jagan Teki <[email protected]> Reviewed-by: Rob Herring <[email protected]> [Icenowy: Refactor and also cover TCON1] Signed-off-by: Icenowy Zheng <[email protected]> Signed-off-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-05dma-buf/udmabuf: Fix NULL pointer dereference in udmabuf_createGustavo A. R. Silva1-1/+2
There is a potential execution path in which pointer memfd is NULL when passed as argument to fput(), hence there is a NULL pointer dereference in fput(). Fix this by null checking *memfd* before calling fput(). Addresses-Coverity-ID: 1473174 ("Explicit null dereferenced") Fixes: fbb0de795078 ("Add udmabuf misc device") Signed-off-by: Gustavo A. R. Silva <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-09-05drm/virtio: add iommu support.Gerd Hoffmann2-9/+38
Use the dma mapping api and properly add iommu mappings for objects, unless virtio is in iommu quirk mode. Signed-off-by: Gerd Hoffmann <[email protected]> Reviewed-by: Dave Airlie <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-05drm/virtio: add virtio_gpu_object_detach() functionGerd Hoffmann4-7/+12
The new function balances virtio_gpu_object_attach(). Also make virtio_gpu_cmd_resource_inval_backing() static and switch call sites to the new virtio_gpu_object_attach() function. Signed-off-by: Gerd Hoffmann <[email protected]> Reviewed-by: Dave Airlie <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-05drm/virtio: track virtual output stateGerd Hoffmann3-1/+6
Track whenever an virtual output (crtc) is enabled or disabled. On atomic updates check for both framebuffer being present and crtc being enabled to figure whenever the output is active or not. Signed-off-by: Gerd Hoffmann <[email protected]> Reviewed-by: Dave Airlie <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-05qxl: fix null-pointer crash during suspendPeter Wu1-21/+5
"crtc->helper_private" is not initialized by the QXL driver and thus the "crtc_funcs->disable" call would crash (resulting in suspend failure). Fix this by converting the suspend/resume functions to use the drm_mode_config_helper_* helpers. Tested system sleep with QEMU 3.0 using "echo mem > /sys/power/state". During suspend the following message is visible from QEMU: spice/server/display-channel.c:2425:display_channel_validate_surface: canvas address is 0x7fd05da68308 for 0 (and is NULL) spice/server/display-channel.c:2426:display_channel_validate_surface: failed on 0 This seems to be triggered by QXL_IO_NOTIFY_CMD after QXL_IO_DESTROY_PRIMARY_ASYNC, but aside from the warning things still seem to work (tested with both the GTK and -spice options). Signed-off-by: Peter Wu <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-09-04drm: Remove "protection" around drm_vma_offset_manager_destroy()Chris Wilson1-3/+0
Using a spinlock to serialize the destroy function, within the destroy function itself does not prevent the buggy driver from shooting themselves in the foot - either way they still have a use-after-free issue. Reported-by: Jia-Ju Bai <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Liviu Dudau <[email protected]> Cc: Daniel Vetter <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-04drm: Suppress user controlled spam for invalid drm_wait_vblank_ioctlChris Wilson1-1/+1
The ioctl arguments are under control of the user and as such we should resist any temptation to flood the kernel logs with their errors. Relegate the DRM_ERROR to a DRM_DEBUG so the user has to opt into hearing of their own mistakes. (One day we will have a small ringbuffer attached to the task, so that the concerned process can inspect its own debug info for EINVAL without them being hitting syslog at all.) Signed-off-by: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-09-04Document/gpu: Use new vm_fault_t typeSouptick Joarder1-1/+1
We have introduce new return type vm_fault_t for fault handler. Update the document for the same. Signed-off-by: Souptick Joarder <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20180904041505.GA2712@jordon-HP-15-Notebook-PC
2018-09-03drm/tegra: kick out simplefbMichał Mirosław1-0/+4
Kick out firmware fb when loading Tegra driver. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/b5c3972e5774d0d1f8887054a993bbc54e9dbe2a.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/sun4i: use simpler remove_conflicting_framebuffers(NULL)Michał Mirosław1-17/+1
Use remove_conflicting_framebuffers(NULL) instead of duplicating it. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Maxime Ripard <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/7d6d5bc4deac322b1351533c989cb3583e91be49.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/vc4: use simpler remove_conflicting_framebuffers(NULL)Michał Mirosław1-19/+1
Use remove_conflicting_framebuffers(NULL) instead of open-coding it. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Eric Anholt <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/be7e6396e6e7159695a5bccc109c6ab49a51e0d8.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/virtio: use simpler remove_conflicting_pci_framebuffers()Michał Mirosław1-21/+3
Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/25f89daf6217da98a52d41c4ad62a78272bb0cf6.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/mgag200: use simpler remove_conflicting_pci_framebuffers()Michał Mirosław2-29/+1
Remove duplicated call, while at it. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/90fc954f90de44157d6cc1c782147db6252c71e4.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/radeon: use simpler remove_conflicting_pci_framebuffers()Michał Mirosław1-22/+1
Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Alex Deucher <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/b61a2e458b6a2964039693d724cc75b4fcfb3ddb.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/bochs: use simpler remove_conflicting_pci_framebuffers()Michał Mirosław1-17/+1
Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/b5fce8eba7472e5ba8e18c2624938be6c5aa6ebb.1535810304.git.mirq-linux@rere.qmqm.pl Link: https://patchwork.freedesktop.org/patch/msgid/a9a4691b6eea789664edd6b85a85b7990953a222.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/cirrus: use simpler remove_conflicting_pci_framebuffers()Michał Mirosław1-22/+1
Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/a9a4691b6eea789664edd6b85a85b7990953a222.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03drm/amdgpu: use simpler remove_conflicting_pci_framebuffers()Michał Mirosław1-23/+1
Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Alex Deucher <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/fe59ab587ef4ef799b525fcc03d87800c5dc26d9.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03fbdev: add remove_conflicting_pci_framebuffers()Michał Mirosław3-0/+49
Almost all PCI drivers using remove_conflicting_framebuffers() wrap it with the same code. v2: add kerneldoc for DRM helper v3: propagate remove_conflicting_framebuffers() return value + move kerneldoc to where function is implemented Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/7db1c278276de420eb45a1b71d06b5eb6bbd49ef.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03fbdev: add kerneldoc do remove_conflicting_framebuffers()Michał Mirosław1-0/+10
Document remove_conflicting_framebuffers() behaviour. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/283fef19815b991700b56119d8d5874a2a8da44e.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03fbdev: allow apertures == NULL in remove_conflicting_framebuffers()Michał Mirosław1-0/+14
Interpret (otherwise-invalid) NULL apertures argument to mean all-memory range. This will allow to remove several duplicates of this code from drivers in following patches. Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/b5fed539fe569035139c8594c23effd8c39f12ca.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03fbdev: show fbdev number for debuggingMichał Mirosław1-2/+2
Signed-off-by: Michał Mirosław <[email protected]> Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> Acked-by: Daniel Vetter <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/ef584ecd8642e8b1a04f28d6d9c1864b5aa507bb.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03Add udmabuf misc deviceGerd Hoffmann8-0/+439
A driver to let userspace turn memfd regions into dma-bufs. Use case: Allows qemu create dmabufs for the vga framebuffer or virtio-gpu ressources. Then they can be passed around to display those guest things on the host. To spice client for classic full framebuffer display, and hopefully some day to wayland server for seamless guest window display. qemu test branch: https://git.kraxel.org/cgit/qemu/log/?h=sirius/udmabuf Cc: David Airlie <[email protected]> Cc: Tomeu Vizoso <[email protected]> Cc: Laurent Pinchart <[email protected]> Cc: Daniel Vetter <[email protected]> Signed-off-by: Gerd Hoffmann <[email protected]> Acked-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-31drm: Describe pixel_blend_mode in drm_plane_stateSean Paul1-0/+7
Adds docs for pixel_blend_mode in drm_plane_state. Fixes the warning found by kbuild test robot: htmldocs: include/drm/drm_plane.h:189: warning: Function parameter or member 'pixel_blend_mode' not described in 'drm_plane_state' Cc: Daniel Vetter <[email protected]> Cc: Lowry Li <[email protected]> Reviewed-by: Maarten Lankhorst <[email protected]> Signed-off-by: Sean Paul <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-31drm/amdgpu: add DisplayPort CEC-Tunneling-over-AUX supportHans Verkuil2-1/+10
Add DisplayPort CEC-Tunneling-over-AUX support to amdgpu. Signed-off-by: Hans Verkuil <[email protected]> Acked-by: Alex Deucher <[email protected]> Reviewed-by: Harry Wentland <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-31drm/nouveau: add DisplayPort CEC-Tunneling-over-AUX supportHans Verkuil1-2/+15
Add DisplayPort CEC-Tunneling-over-AUX support to nouveau. Signed-off-by: Hans Verkuil <[email protected]> Reviewed-by: Lyude Paul <[email protected]> Acked-by: Alex Deucher <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-31drm_dp_mst_topology: fix broken drm_dp_sideband_parse_remote_dpcd_read()Hans Verkuil1-0/+1
When parsing the reply of a DP_REMOTE_DPCD_READ DPCD command the result is wrong due to a missing idx increment. This was never noticed since DP_REMOTE_DPCD_READ is currently not used, but if you enable it, then it is all wrong. Signed-off-by: Hans Verkuil <[email protected]> Reviewed-by: Lyude Paul <[email protected]> Acked-by: Alex Deucher <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-31drm_dp_cec: add note about good MegaChips 2900 CEC supportHans Verkuil1-1/+3
A big problem with DP CEC-Tunneling-over-AUX is that it is tricky to find adapters with a chipset that supports this AND where the manufacturer actually connected the HDMI CEC line to the chipset. Add a mention of the MegaChips 2900 chipset which seems to support this feature well. Signed-off-by: Hans Verkuil <[email protected]> Reviewed-by: Lyude Paul <[email protected]> Acked-by: Alex Deucher <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-31drm_dp_cec: check that aux has a transfer functionHans Verkuil1-0/+14
If aux->transfer == NULL, then just return without doing anything. In that case the function is likely called for a non-(e)DP connector. This never happened for the i915 driver, but the nouveau and amdgpu drivers need this check. The alternative would be to add this check in those drivers before every drm_dp_cec call, but it makes sense to check it in the drm_dp_cec functions to prevent a kernel oops. Signed-off-by: Hans Verkuil <[email protected]> Reviewed-by: Lyude Paul <[email protected]> Acked-by: Alex Deucher <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-30drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset()Dan Carpenter1-2/+3
This doesn't affect runtime because in the current code "idx" is always valid. First, we read from "vgdev->capsets[idx].max_size" before checking whether "idx" is within bounds. And secondly the bounds check is off by one so we could end up reading one element beyond the end of the vgdev->capsets[] array. Fixes: 62fb7a5e1096 ("virtio-gpu: add 3d/virgl support") Signed-off-by: Dan Carpenter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-08-30drm/virtio: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann1-3/+2
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-08-30drm/virtio: Replace ttm_bo_reference with ttm_bo_getThomas Zimmermann1-1/+1
The function ttm_bo_get acquires a reference on a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. Signed-off-by: Thomas Zimmermann <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-08-30drm/qxl: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann1-1/+1
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-08-30drm/cirrus: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann1-1/+1
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-08-30drm/bochs: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann1-1/+1
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Gerd Hoffmann <[email protected]>
2018-08-29drm/rockchip: vop: fix some register define error for px30Sandy Huang1-8/+6
1. interrupt register define error lead to enable interrupt failed; 2. px30 unsupport hdmi output; 3. there are some hardware designed bug, we must swap win2 gate and enable offset, otherwise will appear vop iommu pagefault. Signed-off-by: Sandy Huang <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-29drm/rockchip: Use struct_size() in devm_kzalloc()Gustavo A. R. Silva1-3/+3
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = devm_kzalloc(dev, sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL); or, like in this particular case: size = sizeof(struct foo) + sizeof(void *) * count; instance = devm_kzalloc(dev, size, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL); This issue was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <[email protected]> Reviewed-by: Kees Cook <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-29drm/rockchip: fix coding style and incorrect descriptionSandy Huang1-7/+7
Align with other drivers, tab + 2 space key for description. and edp/hdmi/dsi can be used on both rk3288 and rk3399. Signed-off-by: Sandy Huang <[email protected]> Reviewed-by: Enric Balletbo i Serra <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27drm/atmel-hlcdc: support bus-width (12/16/18/24) in endpoint nodesPeter Rosin3-28/+120
This beats the heuristic that the connector is involved in what format should be output for cases where this fails. E.g. if there is a bridge that changes format between the encoder and the connector, or if some of the RGB pins between the lcd controller and the encoder are not routed on the PCB. This is critical for the devices that have the "conflicting output formats" issue (SAM9N12, SAM9X5, SAMA5D3), since the most significant RGB bits move around depending on the selected output mode. For devices that do not have the "conflicting output formats" issue (SAMA5D2, SAMA5D4), this is completely irrelevant. Acked-by: Boris Brezillon <[email protected]> Reviewed-by: Jacopo Mondi <[email protected]> Signed-off-by: Peter Rosin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27drm/atmel-hlcdc: always iterate over the first 4 output endpointsPeter Rosin1-2/+13
This enables more flexible devicetrees. You can e.g. have two output nodes where one is not enabled, without the ordering affecting things. Prior to this patch the active nodes had to have endpoint id zero and upwards consecutively. Signed-off-by: Peter Rosin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27dt-bindings: display: atmel: optional video-interface of endpointsPeter Rosin1-0/+23
With bus-type/bus-width properties in the endpoint nodes, the video- interface of the connection can be specified for cases where the heuristic fails to select the correct output mode. This can happen e.g. if not all RGB pins are routed on the PCB; the driver has no way of knowing this, and needs to be told explicitly. This is critical for the devices that have the "conflicting output formats" issue (SAM9N12, SAM9X5, SAMA5D3), since the most significant RGB bits move around depending on the selected output mode. For devices that do not have the "conflicting output formats" issue (SAMA5D2, SAMA5D4), this is completely irrelevant. Acked-by: Boris Brezillon <[email protected]> Reviewed-by: Rob Herring <[email protected]> Reviewed-by: Jacopo Mondi <[email protected]> Signed-off-by: Peter Rosin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27dt-bindings: display: bridge: lvds-transmitter: add ti, ds90c185Peter Rosin1-1/+7
Start list of actual chips compatible with "lvds-encoder". Reviewed-by: Laurent Pinchart <[email protected]> Reviewed-by: Rob Herring <[email protected]> Signed-off-by: Peter Rosin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27drm/atmel-hlcdc: allow selecting a higher pixel-clock than requestedPeter Rosin1-0/+12
But only if the highest pixel-clock frequency lower than requested is significantly less accurate than the lowest frequency higher than requested. I pulled "10 times" as the discriminator out of the hat, and went with that. This is useful, if e.g. the target pixel-clock is 65MHz and the sys_clk is 132MHz. In this case the highest possible pixel-clock lower than the requested 65MHz is 52.8MHz, which is almost 20% off (and outside the spec for the panel). The lowest possible pixel-clock higher than 65MHz is 66MHz, which is a *much* better match, and only 1.5% off. Signed-off-by: Peter Rosin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27drm/atmel-hlcdc: prefer a higher rate clock as pixel-clock basePeter Rosin1-7/+11
If the divider used to get the pixel-clock is small, the granularity of the frequencies possible for the pixel-clock is quite coarse. E.g. requesting a pixel-clock of 65MHz with a sys_clk of 132MHz results in the divider being set to 3 ending up with 44MHz. By preferring the doubled sys_clk as base, the divider instead ends up as 5 yielding a pixel-clock of 52.8Mhz, which is a definite improvement. While at it, clamp the divider so that it does not overflow in case it gets big. Signed-off-by: Peter Rosin <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27drm/bridge: ti-sn65dsi86: Add mystery delay to enable()Sean Paul1-0/+12
This patch adds a 70ms mystery delay to the bridge driver in enable. By experimentation, it seems like it can go anywhere up until we initiate semi-auto link training. If we don't have the delay, link training fails. I tried to root cause this as best I could, but neither the datasheet for the panel nor the bridge mention a delay of this magnitude in their timing requirements. So for now, add the mystery delay until someone figures out a better fix. Changes in v3: - Added to the set Cc: Sandeep Panda <[email protected]> Reviewed-by: Sandeep Panda <[email protected]> Signed-off-by: Sean Paul <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-08-27Merge drm/drm-next into drm-misc-nextSean Paul10954-203698/+498317
Now that 4.19-rc1 is cut, backmerge it into -misc-next. Signed-off-by: Sean Paul <[email protected]>
2018-08-26Linux 4.19-rc1Linus Torvalds1-2/+2
2018-08-26Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds1-0/+15
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer update from Thomas Gleixner: "New defines for the compat time* types so they can be shared between 32bit and 64bit builds. Not used yet, but merging them now allows the actual conversions to be merged through different maintainer trees without dependencies We still have compat interfaces for 32bit on 64bit even with the new 2038 safe timespec/val variants because pointer size is different. And for the old style timespec/val interfaces we need yet another 'compat' interface for both 32bit native and 32bit on 64bit" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: y2038: Provide aliases for compat helpers
2018-08-26Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-daxLinus Torvalds28-679/+485
Pull IDA updates from Matthew Wilcox: "A better IDA API: id = ida_alloc(ida, GFP_xxx); ida_free(ida, id); rather than the cumbersome ida_simple_get(), ida_simple_remove(). The new IDA API is similar to ida_simple_get() but better named. The internal restructuring of the IDA code removes the bitmap preallocation nonsense. I hope the net -200 lines of code is convincing" * 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax: (29 commits) ida: Change ida_get_new_above to return the id ida: Remove old API test_ida: check_ida_destroy and check_ida_alloc test_ida: Convert check_ida_conv to new API test_ida: Move ida_check_max test_ida: Move ida_check_leaf idr-test: Convert ida_check_nomem to new API ida: Start new test_ida module target/iscsi: Allocate session IDs from an IDA iscsi target: fix session creation failure handling drm/vmwgfx: Convert to new IDA API dmaengine: Convert to new IDA API ppc: Convert vas ID allocation to new IDA API media: Convert entity ID allocation to new IDA API ppc: Convert mmu context allocation to new IDA API Convert net_namespace to new IDA API cb710: Convert to new IDA API rsxx: Convert to new IDA API osd: Convert to new IDA API sd: Convert to new IDA API ...
2018-08-26Merge tag 'gcc-plugins-v4.19-rc1-fix' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull gcc plugin fix from Kees Cook: "Lift gcc test into Kconfig. This is for better behavior when the kernel is built with Clang, reported by Stefan Agner" * tag 'gcc-plugins-v4.19-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: gcc-plugins: Disable when building under Clang
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