- 13 Feb, 2020 7 commits
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Douglas Anderson authored
We'll re-organize the ti_sn_bridge_enable() function a bit to group together all the parts relating to link training and split them into a sub-function. This is not intended to have any functional change and is in preparation for trying link training several times at different rates. One small side effect here is that if link training fails we'll now leave the DP PLL disabled, but that seems like a sane thing to do. Signed-off-by:
Douglas Anderson <dianders@chromium.org> Tested-by:
Rob Clark <robdclark@gmail.com> Reviewed-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218143416.v3.7.I1fc75ad11db9048ef08cfe1ab7322753d9a219c7@changeid
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Douglas Anderson authored
The current bridge driver always forced us to use 24 bits per pixel over the DP link. This is a waste if you are hooked up to a panel that only supports 6 bits per color or fewer, since in that case you can run at 18 bits per pixel and thus end up at a lower DP clock rate. Let's support this. While at it, let's clean up the math in the function to avoid rounding errors (and round in the correct direction when we have to round). Numbers are sufficiently small (because mode->clock is in kHz) that we don't need to worry about integer overflow. Signed-off-by:
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Douglas Anderson authored
At least one panel hooked up to the bridge (AUO B116XAK01) only supports 1 lane of DP. Let's read this information and stop hardcoding 4 DP lanes. Signed-off-by:
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Douglas Anderson authored
The driver used to say that the value to program into bridge register 0x93 was dp_lanes - 1. Looking at the datasheet for the bridge, this is wrong. The data sheet says: * 1 = 1 lane * 2 = 2 lanes * 3 = 4 lanes A more proper way to express this encoding is min(dp_lanes, 3). At the moment this change has zero effect because we've hardcoded the number of DP lanes to 4. ...and (4 - 1) == min(4, 3). How fortunate! ...but soon we'll stop hardcoding the number of lanes. Signed-off-by:
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Douglas Anderson authored
The ti-sn65dsi86 is a bridge from MIPI to DP and thus has two links: the MIPI link and the DP link. The two links do not need to have the same format or number of lanes. Stop using MIPI variables when talking about the DP link. This has zero functional change because: * currently we are hardcoding the MIPI link as unpacked RGB888 which requires 24 bits and currently we are not changing the DP link rate from the bridge's default of 8 bits per pixel. * currently we are hardcoding both the MIPI and DP as being 4 lanes. This is all in prep for fixing some of the above. Signed-off-by:
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Douglas Anderson authored
When we iterate over ti_sn_bridge_dp_rate_lut, there's no reason to start at index 0 which always contains the value 0. 0 is not a valid link rate. This change should have no real effect but is a small cleanup. Signed-off-by:
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Douglas Anderson authored
These two things were in one function. Split into two. This looks like it's duplicating some code, but don't worry. This is is just in preparation for future changes. This is intended to have zero functional change and will just make future patches easier to understand. Signed-off-by:
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- 12 Feb, 2020 6 commits
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Christian König authored
This allows release_notify to add and remove fences from deleted objects. Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
xinhui pan <xinhui.pan@amd.com> Link: https://patchwork.freedesktop.org/patch/352750/
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Christian König authored
When non-imported BOs are resurrected for delayed delete we replace the dma_resv object to allow for easy reclaiming of the resources. v2: move that to ttm_bo_individualize_resv v3: add a comment to explain what's going on Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/352927/
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Christian König authored
This patch reworks the whole delayed deletion of BOs which aren't idle. Instead of having two counters for the BO structure we resurrect the BO when we find that a deleted BO is not idle yet. This has many advantages, especially that we don't need to increment/decrement the BOs reference counter any more when it moves on the LRUs. v2: remove duplicate ttm_tt_destroy, fix holde lock for LRU move Signed-off-by:
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Gerd Hoffmann authored
Split virtio_gpu_deinit(), move the drm shutdown and release to virtio_gpu_release(). Drop vqs_ready variable, instead use drm_dev_{enter,exit,unplug} to avoid touching hardware after device removal. Tidy up here and there. v4: add changelog. v3: use drm_dev_*(). Signed-off-by:Gerd Hoffmann <kraxel@redhat.com> Reviewed-by:
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Gerd Hoffmann authored
Move final cleanups from cirrus_pci_remove() to the new callback. Add drm_atomic_helper_shutdown() call to cirrus_pci_remove(). Use drm_dev_{enter,exit,unplug} to avoid touching hardware after device removal. v4: add changelog. v3: use drm_dev*. v2: stop touching hardware after pci_remove(). Signed-off-by: -
Gerd Hoffmann authored
Call bochs_unload via drm_driver.release to make sure we release stuff when it is safe to do so. Use drm_dev_{enter,exit,unplug} to avoid touching hardware after device removal. Tidy up here and there. v4: add changelog. v3: use drm_dev_*(). v2: move hardware deinit to pci_remove(). Signed-off-by:
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- 11 Feb, 2020 18 commits
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Jani Nikula authored
There is no real reason to require drivers to set and use dev->dev_private. Indeed, the current recommendation, as documented in drm_device.h, is to embed struct drm_device in the per-device struct instead of using dev_private. Remove the requirement for dev_private to have been set to indicate driver initialization. For background, quoting Daniel Vetter: Now there might be some hilarious races this papers over, but: - Proper drivers should only call drm_dev_register once everything is set up, including this stuff here. No race possible with anything else really. - Slightly more wobbly drivers, including the legacy ones, all use drm_global_mutex. This was the former BKL, which means that it was impossible for soeone to go through the load/unload/reload (between lastclose and firstopen) paths and also run the ioctl. But the ioctl had to be made unlocked because blocking there killed X: commit 8f4ff2b0 Author: Ilija Hadzic <ihadzic@research.bell-labs.com> Date: Mon Oct 31 17:46:18 2011 -0400 drm: do not sleep on vblank while holding a mutex The even more legacy DRM_CONTROL ioctl stayed fully locked. But the file open/close paths are still fully locked, and that's the only place legacy drivers should call drm_irq_install/uninstall, so should all still be fully ordered and protected and happy. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel@ffwll.ch> Reviewed-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200211144753.3175-1-jani.nikula@intel.com
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Jyri Sarha authored
Add support for Rocktech RK101II01D-CT, 10.1" 1280x800 TFT with LVDS interface, LED backlight and integrated Goodix GT928 capacitive touch panel. Signed-off-by:
Jyri Sarha <jsarha@ti.com> Reviewed-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/b543b77d8af7cbbef852d3df4595f11ac1aa0046.1581423249.git.jsarha@ti.com
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Jyri Sarha authored
Add compatible to panel-simple for Rocktech Displays Limited RK101II01D-CT 10.1" TFT 1280x800 Pixels with LVDS interface, LED Backlight, and capacitive touch panel ("goodix,gt928" compatible). Signed-off-by: -
Daniel Vetter authored
This catches the majority of drivers (unfortunately not if we take users into account, because all the big drivers have at least a lastclose hook). With the prep patches out of the way all drm state is fully protected and either prevents or can deal with the races from dropping the BKL around open/close. The only thing left to audit are the various driver hooks - by keeping the BKL around if any of them are set we have a very simple cop-out! Note that one of the biggest prep pieces to get here was making dev->open_count atomic, which was done in commit 7e13ad89 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Jan 24 13:01:07 2020 +0000 drm: Avoid drm_global_mutex for simple inc/dec of dev->open_count v2: - Rebase and fix locking in drm_open() (Chris) - Indentation fix in drm_release - Typo fix in the commit message (Sam) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Sam Ravnborg <sam@ravnborg.org> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Tested-by:
Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200204150146.2006481-6-daniel.vetter@ffwll.ch
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Daniel Vetter authored
We want to only take the BKL on crap drivers, but to know whether we have a crap driver we first need to look it up. Split this shuffle out from the main BKL-disabling patch, for more clarity. Historical aside: When the kernel-wide BKL was removed, it was replaced by drm_global_mutex within the scope of the drm subsystem hence why these two things are (almost) interchangeable as concepts here. Since the minors are refcounted drm_minor_acquire is purely internal and this does not have a driver visible effect. v2: Push the locking even further into drm_open(), suggested by Chris. This gives us more symmetry with drm_release(), and maybe a futuer avenue where we make drm_global_mutex locking (partially) opt-in like with drm_release_noglobal(). v3: - Actually push this stuff correctly, don't unlock twice (Chris) - Fix typo on commit message, plus explain why BKL = drm_global_mutex (Sam) Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Tested-by:
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Daniel Vetter authored
Plus extend the kerneldoc a bit to explain how this should be used. With the previous patch to drop the force restore the main user of this function is not emphasis on the "I hold the internal master lock already" aspect, so rename the function to match. Suggested by Noralf. Cc: Noralf Trønnes <noralf@tronnes.org> Reviewed-by:
Noralf Trønnes <noralf@tronnes.org> Tested-by:
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Daniel Vetter authored
Instead check for master status, in case we've raced. This is the last exception to the general rule that we restore fbcon only when there's no master active. Compositors are supposed to drop their master status before they switch to a different console back to text mode (or just switch to text mode directly, without a vt switch). This is known to break some subtests of kms_fbcon_fbt in igt, but they're just wrong - it does a graphics/text mode switch for the vt without updating the master status. Also add a comment to the drm_client->restore hook that this is expected going forward from all clients (there's currently just one). v2: Also drop the force in pan_display v3: Restore the _force to pan_display, this actually means _locked in that path. Spotted by Noralf. Cc: Noralf Trønnes <noralf@tronnes.org> Reviewed-by:
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Christian König authored
This allows it to call the function without the lock held. Signed-off-by:
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Christian König authored
The function is always called with deleted BOs. While at it cleanup the indentation as well. Signed-off-by:
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Christian König authored
Ghost BOs need to stick with the resv object only when the origin is imported. This is a low hanging fruit to avoid OOM situations on evictions. Signed-off-by:
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Gerd Hoffmann authored
Move final cleanups to qxl_drm_release() callback. Add drm_atomic_helper_shutdown() call to qxl_pci_remove(). Signed-off-by:
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Gerd Hoffmann authored
Reorder calls in qxl_device_fini(). Cleaning up gem & ttm might trigger qxl commands, so we should do that before releaseing command rings. Signed-off-by:
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Wen Yang authored
The call to of_find_matching_node returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c:212:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 209, but without a corresponding object release within this function. drivers/gpu/drm/omapdrm/dss/omapdss-boot-init.c:237:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 209, but without a corresponding object release within this function. Signed-off-by:
Wen Yang <wen.yang99@zte.com.cn> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
Mukesh Ojha <mojha@codeaurora.org> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Cc: Markus Elfring <Markus.Elfring@web.de> Signed-off-by:
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Peter Ujfalusi authored
dma_sync_wait() is calling it so no need to call it in the driver. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by:
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Peter Ujfalusi authored
Instead of dma_dev->device_prep_dma_memcpy() use the existing macro to prepare the memcpy. Signed-off-by:
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Kieran Bingham authored
Fix trivial spelling identified while examining the code. s/supprted./supported./ Signed-off-by:
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by:
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Zheng Bin authored
Fixes coccicheck warning: drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c:681:1-15: WARNING: Assignment of 0/1 to bool variable drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c:732:1-15: WARNING: Assignment of 0/1 to bool variable Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Zheng Bin <zhengbin13@huawei.com> Signed-off-by:
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Tomi Valkeinen authored
Add pixel clock limits to the driver as per TFP410 datasheet: min 25MHz, max 165MHz. Signed-off-by:
Andrzej Hajda <a.hajda@samsung.com> Reviewed-by:
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- 10 Feb, 2020 9 commits
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Gerd Hoffmann authored
Introduce new virtio_gpu_object_shmem_init() helper function which will create the virtio_gpu_mem_entry array, containing the backing storage information for the host. For the most path this just moves code from virtio_gpu_object_attach(). Signed-off-by:
Chia-I Wu <olvaffe@gmail.com>
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Gerd Hoffmann authored
Stop sending DETACH_BACKING commands, that will happening anyway when releasing resources via UNREF. Handle guest-side cleanup in virtio_gpu_cleanup_object(), called when the host finished processing the UNREF command. Signed-off-by:
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Gerd Hoffmann authored
Add new virtio_gpu_cleanup_object() helper function for object cleanup. Wire up callback function for resource unref, do cleanup from callback when we know the host stopped using the resource. Signed-off-by:
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Gerd Hoffmann authored
Just call virtio_gpu_alloc_cmd_resp with some fixed args instead of duplicating most of the function body. Signed-off-by:
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Gerd Hoffmann authored
Check whenever mode_config was actually properly initialized before trying to clean it up. Signed-off-by:
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Enric Balletbo i Serra authored
Fix the 'manged' typo with 'managed' in the drm_panel_bridge_add kernel-doc documentation. Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by:
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Yannick Fertré authored
Sometime the post_disable function is missing (not registered). Signed-off-by:
Yannick Fertré <yannick.fertre@st.com> Reviewed-by:
Philippe Cornu <philippe.cornu@st.com> Signed-off-by:
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Jyri Sarha authored
To enable HDMI audio the SND_SOC_HDMI_CODEC needs to be configured. Enable HDMI audio by selecting SND_SOC_HDMI_CODEC if SND_SOC is configured. SND_SOC_HDMI_CODEC has no config menu entry and should be selected automatically by the drivers using it. Signed-off-by:
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Peter Ujfalusi authored
Add basic support for the Toshiba TC358768 RGB to DSI bridge. Not all the features of the TC358768 is implemented by the initial driver: MIPI_DSI_MODE_VIDEO and MIPI_DSI_FMT_RGB888 is only supported and tested. Only write is implemented for mipi_dsi_host_ops.transfer. Signed-off-by:
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