- 02 May, 2016 4 commits
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Jérome Glisse authored
This match the exact same control flow as existing code. It just use goto instead of multiple levels of if/else. It also clarify early initialization failures by clearing rdev->has_uvd doing so does not change end result from hardware point of view, it only avoids printing more error messages down the line and thus only the original error is reported. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Jérome Glisse authored
This match the exact same control flow as existing code. It just use goto instead of multiple levels of if/else. It also clarify early initialization failures by clearing rdev->has_uvd doing so does not change end result from hardware point of view, it only avoids printing more error messages down the line and thus only the original error is reported. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Jérome Glisse authored
This match the exact same control flow as existing code. It just use goto instead of multiple levels of if/else. It also clarify early initialization failures by clearing rdev->has_uvd doing so does not change end result from hardware point of view, it only avoids printing more error messages down the line and thus only the original error is reported. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Jérome Glisse authored
This match the exact same control flow as existing code. It just use goto instead of multiple levels of if/else. It also clarify early initialization failures by clearing rdev->has_uvd doing so does not change end result from hardware point of view, it only avoids printing more error messages down the line and thus only the original error is reported. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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- 29 Apr, 2016 2 commits
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http://git.agner.ch/git/linux-drm-fsl-dcuDave Airlie authored
This adds very rudimentary TCON (timing controller for raw LCD displays) support to enable the bypass mode in order to use the DCU controller on Freescale/NXP Vybrid SoC's. Additionally the register clock and pixel clock has been separated, but are currently still enabled and disabled pairwise. Other than that, fixes and cleanups accross the driver. * 'for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu: drm/fsl-dcu: increment version and date drm/fsl-dcu: implement lastclose callback drm/fsl-dcu: disable output polling on driver unload drm/fsl-dcu: deallocate fbdev CMA on unload drm/fsl-dcu: use variable name dev for struct drm_device drm/fsl-dcu: handle missing panel gracefully drm/fsl-dcu: detach panel on destroy drm/layerscape: reduce excessive stack usage drm/fsl-dcu: add TCON driver drm/fsl-dcu: use common clock framework for pixel clock divider drm/fsl-dcu: add extra clock for pixel clock drm/fsl-dcu: disable clock on initialization failure and remove
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Dave Airlie authored
Merge tag 'sun4i-drm-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next Allwinner DRM driver for 4.7 This pull request introduces the sun4i driver, meant to be used on the older Allwinner SoCs (A10, A13, A20, A23, A31 and A33). It currently supports only the A13, which has one of the simplest video pipeline. Support for other video components and SoCs will be added eventually. It supports only a RGB or composite output. It doesn't do HDMI, VGA, LVDS or power management yet, but that will come in time as well. * tag 'sun4i-drm-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: MAINTAINERS: Add a maintainer for the Allwinner DRM driver drm: sun4i: tv: Add NTSC output standard drm: sun4i: tv: Add PAL output standard drm: sun4i: Add composite output drm: sun4i: Add RGB output drm: Add Allwinner A10 Display Engine support drm: sun4i: Add DT bindings documentation drm: fb: Add seq_file definition
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- 28 Apr, 2016 8 commits
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Maxime Ripard authored
Add myself as the maintainer of the new Allwinner DRM driver. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
Add the settings to support the NTSC standard. Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
Now that we have support for the composite output, we can start adding new supported standards. Start with PAL, and we will add other eventually. Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
Some Allwinner SoCs have an IP called the TV encoder that is used to output composite and VGA signals. In such a case, we need to use the second TCON channel. Add support for that TV encoder. Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
One of the A10 display pipeline possible output is an RGB interface to drive LCD panels directly. This is done through the first channel of the TCON that will output our video signals directly. Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
The Allwinner A10 and subsequent SoCs share the same display pipeline, with variations in the number of controllers (1 or 2), or the presence or not of some output (HDMI, TV, VGA) or not. Add a driver with a limited set of features for now, and we will hopefully support all of them eventually Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
The display pipeline of the Allwinner A10 is involving several loosely coupled components. Add a documentation for the bindings. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
Otherwise, building with DEBUG_FS enabled will trigger a build warning because we're using a structure that has not been declared. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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- 26 Apr, 2016 24 commits
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Daniel Vetter authored
Need to move the free function around a bit, but otherwise mostly just removing code. Specifically we can nuke all the _locked variants since the weak idr reference is now protected by the idr_mutex, which we never hold anywhere expect in the lookup/reg/unreg functions. And those never call anything else. Another benefit of this is that this patch switches the weak reference logic from kref_put_mutex to kref_get_unless_zero. And the later is in general more flexible wrt accomodating multiple weak references protected by different locks, which might or might not come handy eventually. But one consequence of that switch is that we need to acquire the blob_lock from the free function for the list_del calls. That's a bit tricky to pull off, but works well if we pick the exact same scheme as is already used for framebuffers. Most important changes: - filp list is maintainer by create/destroy_blob ioctls directly (already the case, so we can just remove the redundant list_del from the free function). - filp close handler walks the filp-private list lockless - works because we know no one else can access it. I copied the same comment from the fb code over to explain this. - Otherwise we need to sufficiently restrict blob_lock critical sections to avoid all the unreference calls. Easy to do once the blob_lock only protects the list, and no longer the weak reference. Cc: Dave Airlie <airlied@gmail.com> Cc: Daniel Stone <daniels@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Daniel Vetter authored
Random drive-by refactoring I spotted. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Daniel Vetter authored
Dave Airlie had at least the refcount leak fixed in a later patch (but that patch does other things which need a bit more work). But we still have the trouble that silly userspace could hit the WARN_ON in drm_mode_object_find. Fix this all up to make sure we don't leak objects, and don't spew into demsg. Fixes: d0f37cf6 ("drm/mode: move framebuffer reference into object.") Testcase: igt/kms_addfb_basic/invalid-*-prop* Cc: Dave Airlie <airlied@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Daniel Vetter authored
Slipped through the cracks in my review. The one issue I spotted is that drm_mode_object_find now acquires references and can be used on FB objects, which caused follow-on bugs in get/set_prop ioctls. Follow-up patches will fix that. [airlied: fixup some incr fb/decr object mixups] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Dave Airlie authored
Merge branch 'topic-arcpgu-v6' of https://github.com/foss-for-synopsys-dwc-arc-processors/linux into drm-next This is DRM driver for ARC PGU - simple bitstreamer used on Synopsys ARC SDP boards (both AXS101 and AXS103). * 'topic-arcpgu-v6' of https://github.com/foss-for-synopsys-dwc-arc-processors/linux: arc: axs10x - add support of ARC PGU MAINTAINERS: Add maintainer for ARC PGU display controller drm: Add DT bindings documentation for ARC PGU display controller drm: Add support of ARC PGU display controller
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Emil Velikov authored
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Emil Velikov authored
One cannot rename the struct at this point, so might as well remove the comment. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://linuxtv.org/pinchartl/fbdevDave Airlie authored
misc rcar changes. * 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev: drm: rcar-du: Fix compilation warning drm: rcar-du: Use ARCH_RENESAS drm: rcar-du: Clarify vsp dependency
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Alexey Brodkin authored
Synopsys DesignWare ARC SDP boards sport ARC SDP display controller attached to ADV7511 HDMI encoder. That change adds desctiption of both ARC PGU and ADV7511 in ARC SDP'd base-board Device Tree. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: devicetree@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org
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Alexey Brodkin authored
This updates MAINTEINERS file with information about maintainer of ARC PGU display controller driver. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: linux-snps-arc@lists.infradead.org
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Alexey Brodkin authored
This add DT bindings documentation for ARC PGU display controller. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Acked-by: Rob Herring <robh@kernel.org>
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Carlos Palminha authored
ARC PGU could be found on some development boards from Synopsys. This is a simple byte streamer that reads data from a framebuffer and sends data to the single encoder. Signed-off-by: Carlos Palminha <palminha@synopsys.com> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Cc: linux-snps-arc@lists.infradead.org
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Stefan Agner authored
The driver supports now a second platform and received several fixes, hence a version increment is justified. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Use CMA helper drm_fbdev_cma_restore_mode to restore fbdev mode in process which uses drm/kms dies. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Disabling output polling before unloading the driver. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Free fbdev CMA using drm_fbdev_cma_fini on unload. This fixes a warning when unloading the driver: WARNING: CPU: 0 PID: 164 at drivers/gpu/drm/drm_crtc.c:5930 drm_mode_config_cleanup+0x204/0x208 Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
The driver uses different variable names for struct drm_device across functions which is confusing. Stick to the more common variable name dev. While at it, remove unnecessary if statement in error handling. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
If the device tree property fsl,panel is missing, drm_panel_attach is called with a NULL pointer as first argument. Having a panel is basically mandatory since RGB is the only supported connector. Check if a panel node has been found, return -ENODEV and cleanup otherwise. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Disable the earlier attached panel on connector destroy. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Arnd Bergmann authored
The fsl-dcu driver copies a drm_mode_config object to its stack but then only accesses a single member (dpms_property) once. The data structure is large enough to trigger a warning about the amount of kernel stack being used: drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c: In function 'fsl_dcu_drm_connector_create': drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c:182:1: error: the frame size of 1040 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] This changes the fsl_dcu_drm_connector_create() function to only access the drm_mode_config by reference, which is also more efficient. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 109eee2f ("drm/layerscape: Add Freescale DCU DRM driver") Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Add driver for the TCON (timing controller) module. The TCON module is a separate module attached after the DCU (display controller unit). Each DCU instance has its own, directly connected TCON instance. The DCU's RGB and timing signals are passing through the TCON module. TCON can provide timing signals for raw TFT panels or operate in a bypass mode which leaves all signals unaltered. The driver currently only supports the bypass mode. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Use the common clock framework to calculate the pixel clock dividier. The previous implementation rounded down the calculated factor. Thanks to the CLK_DIVIDER_ROUND_CLOSEST flag using the common clock framework divider implementation improves the pixel clock accuracy in some cases. Ontop of that it also allows to see the actual pixel clock in the sysfs clock summary. Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
The Vybrid DCU variant has two independent clock inputs, one for the registers (IPG bus clock) and one for the pixel clock. Support this distinction in the DCU DRM driver while staying backward compatible for old device trees. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stefan Agner <stefan@agner.ch>
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Stefan Agner authored
Fix error handling during probe by reordering initialization and adding a error path which disables clock again. Also disable the clock on remove. Signed-off-by: Stefan Agner <stefan@agner.ch>
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- 23 Apr, 2016 2 commits
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Laurent Pinchart authored
Commit d63c25e4 ("drm: rcar-du: Use generic drm_connector_register_all() helper") left an unused local variable behind. Remove it. Fixes: d63c25e4 ("drm: rcar-du: Use generic drm_connector_register_all() helper") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Simon Horman authored
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE. This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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