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2016-04-29drm/exynos/hdmi: constify global variablesAndrzej Hajda1-5/+5
These variables should not be modified. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: clock code re-factoringAndrzej Hajda1-54/+140
With incoming support for newer SoCs different set of clocks will be required, depending on IP version. The patch prepares the driver for it. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: Use VIDEO_SAMSUNG_S5P_G2D=n as G2D Kconfig dependencyJavier Martinez Canillas1-1/+1
Commit 254d4d111ee1 ("drm/exynos: Add dependency for G2D in Kconfig") made the DRM_EXYNOS_G2D symbol to only be selectable if the s5p-g2d V4L2 driver is not enabled, since both use the same HW IP block. But added the dependency as depends on !VIDEO_SAMSUNG_S5P_G2D which isn't correct since Kconfig expressions are not boolean but tristate. So it will only evaluate to 'n' if VIDEO_SAMSUNG_S5P_G2D=y but it will evaluate to m if VIDEO_SAMSUNG_S5P_G2D=m. This means that both the V4L2 and DRM drivers can be enabled if the former is enabled as a module, which is not what we want. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: fix a warning messageDan Carpenter1-1/+1
The "ret = regmap_write()" assignment was missing so this error message is never printed. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: mic: fix an error codeDan Carpenter1-0/+1
We accidentally return success instead of a negative error code here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: fimd: fix broken dp_clock controlMarek Szyprowski1-1/+1
Commit 1feafd3afd294b03dbbedb8e8f94e0c4db526f10 ("drm/exynos: add exynos5420 support for fimd") add support for Exynos 5420 SoC, but it broke enabling display clock feature because of incorrect condition check. This patch fixes it, so display is working again on platforms requiring display clock control (i.e. Exynos5250-based SNOW platform). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: build fbdev code conditionallyAndrzej Hajda4-15/+36
Fbdev code should be compiled only if CONFIG_DRM_FBDEV_EMULATION option is enabled. The patch fixes exynos-drm code trying to manipulate fbdev data which is not initialized in case CONFIG_DRM_FBDEV_EMULATION is disabled. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: fix adjusted_mode pointer in exynos_plane_mode_setAndrzej Hajda1-5/+7
exynos_plane_mode_set should use adjusted_mode from the same atomic state as plane state. Otherwise it will result in incorrect behavior in case crtc mode changes. The patch fixes bug with black console framebuffer in case of command mode panels. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos: fix error handling in exynos_drm_subdrv_openArnd Bergmann1-1/+1
gcc-6 warns about a pointless loop in exynos_drm_subdrv_open: drivers/gpu/drm/exynos/exynos_drm_core.c: In function 'exynos_drm_subdrv_open': drivers/gpu/drm/exynos/exynos_drm_core.c:104:199: error: self-comparison always evaluates to false [-Werror=tautological-compare] list_for_each_entry_reverse(subdrv, &subdrv->list, list) { Here, the list_for_each_entry_reverse immediately terminates because the subdrv pointer is compared to itself as the loop end condition. If we were to take the current subdrv pointer as the start of the list (as we would do if list_for_each_entry_reverse() was not a macro), we would iterate backwards over the &exynos_drm_subdrv_list anchor, which would be even worse. Instead, we need to use list_for_each_entry_continue_reverse() to go back over each subdrv that was successfully opened until the first entry. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29MAINTAINERS: Add maintainer for hisilicon DRM driverXinliang Liu1-0/+10
Add maintainer and reviewer for hisilicon DRM driver. v8: - Append "/" to directory patterns. v7: None. v6: None. v5: None. v4: - Add Chen Feng <puck.chen@hisilicon.com> as Designated reviewer. v3: First version. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
2016-04-29drm/hisilicon: Add support for external bridgeXinliang Liu1-0/+52
Add support for external HDMI bridge. v8: None. v7: None. v6: None. v5: None. v4: None. v3: - Fix a typo: s/exteranl/external. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Archit Taneja <architt@codeaurora.org>
2016-04-29drm/hisilicon: Add designware dsi host driverXinliang Liu1-0/+50
Add DesignWare dsi host driver for hi6220 SoC. v8: None. v7: None. v6: None. v5: None. v4: None. v3: None. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Archit Taneja <architt@codeaurora.org>
2016-04-29drm/hisilicon: Add designware dsi encoder driverXinliang Liu4-0/+869
Add DesignWare MIPI DSI Host Controller v1.02 encoder driver for hi6220 SoC. v9: Fix module compile error. v8: None. v7: - A few regs define clean up. v6: - Change "pclk_dsi" to "pclk". v5: None. v4: None. v3: - Rename file name to dw_drm_dsi.c - Make encoder type as DRM_MODE_ENCODER_DSI. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by: Andy Green <andy.green@linaro.org>
2016-04-29drm/hisilicon: Add cma fbdev and hotplugXinliang Liu2-0/+37
Add cma Fbdev, Fbdev is legency and optional, you can enable/disable it by configuring DRM_FBDEV_EMULATION. Add hotplug. v8: None. v7: None. v6: None. v5: None. v4: None. v3: None. v2: - Use CONFIG_DRM_FBDEV_EMULATION instead of CONFIG_DRM_HISI_FBDEV. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add vblank driver for ADEXinliang Liu2-1/+75
Add vblank irq handle. v8: None. v7: - Fix irq flag "DRIVER_IRQF_SHARED" to "IRQF_SHARED". v6: None. v5: None. v4: None. v3: - Remove hisi_get_crtc_from_index func. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add plane driver for ADEXinliang Liu1-1/+534
Add plane funcs and helper funcs for ADE. v8: None. v7: None. v6: None. v5: None. v4: None. v3: - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add crtc driver for ADEXinliang Liu5-1/+714
Add crtc funcs and helper funcs for ADE. v8: None. v7: - A few Regs define clean up and typo fixs. v6: - Cleanup reg-names dt parsing. v5: - Use syscon to access ADE media NOC QoS registers instread of directly writing registers. - Use reset controller to reset ADE instead of directly writing registers. v4: None. v3: - Make ade as the master driver. - Use port to connect with encoder. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Archit Taneja <architt@codeaurora.org>
2016-04-29drm/hisilicon: Add hisilicon kirin drm master driverXinliang Liu8-0/+354
Add kirin DRM master driver for hi6220 SoC which used in HiKey board. Add dumb buffer feature. Add prime dmabuf feature. v9: Add OF and ARM64 depends on in Kconfig v8: None. v7: - Add config.mutex protection when accessing mode_config.connector_list. - Clean up match data getting. v6: None. v5: None. v4: None. v3: - Move and rename all the files to kirin sub-directory. So that we could separate different seires SoCs' driver. - Replace drm_platform_init, load, unload implementation. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add device tree binding for hi6220 display subsystemXinliang Liu2-0/+136
Add ADE display controller binding doc. Add DesignWare DSI Host Controller v1.20a binding doc. v8: None. v7: Acked by Rob Herring. v6: - Cleanup values part of reg and clocks properties. - Change "pclk_dsi" clock name to "pclk". v5: - Remove endpoint unit address of dsi output port. - Add "hisilicon,noc-syscon" property for ADE NOC QoS syscon. - Add "resets" property for ADE reset. v4: - Describe more specific of clocks and ports. - Fix indentation. v3: - Make ade as the drm master node. - Use assigned-clocks to set clock rate. - Use ports to connect display relavant nodes. v2: - Move dt binding docs to bindings/display/hisilicon directory. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Acked-by: Rob Herring <robh@kernel.org>
2016-04-29Merge branch 'for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu into ↵Dave Airlie10-57/+298
drm-next 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
2016-04-29Merge tag 'sun4i-drm-for-4.7' of ↵Dave Airlie24-1/+3533
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
2016-04-28drm/atomic: Add missing drm_crtc_internal.h includeThierry Reding1-0/+2
Some of the functions implemented are flagged as not having a prototype defined when building with W=1. Include the header to avoid these build warnings. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461849596-12819-1-git-send-email-thierry.reding@gmail.com
2016-04-28drm/dp: Allow signals to interrupt drm_aux-dev reads/writesVille Syrjälä1-0/+12
Let's be nice and interrupt the dpcd aux-dev reads/writes when there's a signal pending. Much nicer if the user can hit ^C instead of having to sit around waiting for the read/write to finish. time dd if=/dev/drm_dp_aux0 bs=$((1024*1024)) ^C before: real 0m34.681s user 0m0.003s sys 0m6.880s after: real 0m0.222s user 0m0.006s sys 0m0.057s Cc: Rafael Antognolli <rafael.antognolli@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461786225-7790-1-git-send-email-ville.syrjala@linux.intel.com
2016-04-28drm: Quiet down drm_mode_getresourcesTvrtko Ursulin1-10/+0
The debug logging here can be very verbose in the kernel logs and provides no information which userspace doesn't have the access to already. Turn it off so kernel logs become more manageable. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461755507-30453-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-04-28drm: Quiet down drm_mode_getconnectorTvrtko Ursulin1-2/+0
Debug logging in this function does not provide any information apart that the userspace is calling an ioctl on the connector. There is not any info on the connector provided at all and since there are other ioctls userspace typically calls which do log useful things about the same connectors, remove this one to make things a little bit more readable when KMS debugging is turned on. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461751622-26927-10-git-send-email-tvrtko.ursulin@linux.intel.com
2016-04-28MAINTAINERS: Add a maintainer for the Allwinner DRM driverMaxime Ripard1-0/+7
Add myself as the maintainer of the new Allwinner DRM driver. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-04-28drm: sun4i: tv: Add NTSC output standardMaxime Ripard1-0/+45
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>
2016-04-28drm: sun4i: tv: Add PAL output standardMaxime Ripard1-0/+42
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>
2016-04-28drm: sun4i: Add composite outputMaxime Ripard2-0/+623
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>
2016-04-28drm: sun4i: Add RGB outputMaxime Ripard6-1/+355
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>
2016-04-28drm: Add Allwinner A10 Display Engine supportMaxime Ripard18-1/+2202
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>
2016-04-28drm: sun4i: Add DT bindings documentationMaxime Ripard1-0/+258
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>
2016-04-28drm: fb: Add seq_file definitionMaxime Ripard1-0/+2
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>
2016-04-27drm: Protect dev->filelist with its own mutexDaniel Vetter6-12/+25
amdgpu gained dev->struct_mutex usage, and that's because it's walking the dev->filelist list. Protect that list with it's own lock to take one more step towards getting rid of struct_mutex usage in drivers once and for all. While doing the conversion I noticed that 2 debugfs files in i915 completely lacked appropriate locking. Fix that up too. v2: don't forget to switch to drm_gem_object_unreference_unlocked. Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-9-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Make drm_vm_open/close_locked private to drm_vm.cDaniel Vetter2-14/+4
It's only used for legacy mmaping support now. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-8-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Hide master MAP cleanup in drm_bufs.cDaniel Vetter3-15/+26
And again make sure it's a no-op for modern drivers. Another case of dev->struct_mutex gone for modern drivers! Note that the entirety of the legacy addmap interface is now protected by DRIVER_MODESET. Note that just auditing kernel code is not enough, since userspace loves to set up legacy maps on it's own for various things - with ums userspace and kernel space share control over resources. v2: Also add a DRIVER_* check like for all other maps functions to really short-circuit the code. And give drm_legacy_rmmap used by the dev unregister code the same treatment. v3: - remove redundant return; (Alex, Chris) - don't special case nouveau with DRIVER_KMS_LEGACY_CONTEXT. v4: Again special case nouveau. The problem is not directly in the ddx, but that it calls dri1 functions from the X server. And those do call drmAddMap. Fixed only in commit b1a630b48210d6a3c44994fce1b73273000ace5c Author: Dave Airlie <airlied@redhat.com> Date: Wed Nov 7 14:45:14 2012 +1000 nouveau: drop DRI1 device open interface. Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461741618-12679-1-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Forbid legacy MAP functions for DRIVER_MODESETDaniel Vetter1-0/+12
Like in commit 0e975980d435d58df2d430d688b8c18778b42218 Author: Peter Antoine <peter.antoine@intel.com> Date: Tue Jun 23 08:18:49 2015 +0100 drm: Turn off Legacy Context Functions we need to again make an exception for nouveau, but everyone else really doesn't need this. Dave Airlie dug out again why we need this: The problem is the legacy dri1 open function the nouveau ddx called, and the problematic code is actually in the X server itself. It was only fixed in commit b1a630b48210d6a3c44994fce1b73273000ace5c Author: Dave Airlie <airlied@redhat.com> Date: Wed Nov 7 14:45:14 2012 +1000 nouveau: drop DRI1 device open interface. Cc: Peter Antoine <peter.antoine@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-5-git-send-email-daniel.vetter@ffwll.ch Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-6-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Push struct_mutex into ->master_destroyDaniel Vetter1-1/+1
Only two drivers implement this hook. vmwgfx (which doesn't need it really) and legacy radeon (which since v1 has been nuked, yay). v1: Rebase over radeon ums removal. Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Alex Deucher <alexdeucher@gmail.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-6-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Move drm_getmap into drm_bufs.c and give it a legacy prefixDaniel Vetter3-53/+55
It belongs right next to the addmap and rmmap functions really. And for OCD consistency name it drm_legacy_getmap_ioctl. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-4-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Put legacy lastclose work into drm_legacy_dev_reinitDaniel Vetter2-24/+20
Except for the ->lasclose driver callback evrything in drm_lastclose() is all legacy cruft and can be hidden. Which means another dev->struct_mutex site disappears entirely for modern drivers! Also while at it change the return value of drm_lastclose to void since it will always succeed. No one checks the return value of close() anyway, ever. v2: Move misplaced hunk, spotted by 0day. Cc: Thierry Reding <thierry.reding@gmail.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-3-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Give drm_agp_clear drm_legacy_ prefixDaniel Vetter4-6/+6
It has a DRIVER_MODESET check to sure make it's not creating havoc for drm drivers. Make that clear in the name too. v2: Move misplaced hunk, spotted by 0day and Thierry. Cc: Thierry Reding <thierry.reding@gmail.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-2-git-send-email-daniel.vetter@ffwll.ch
2016-04-27drm: Switch blobs to the new generic modeset obj refcountingDaniel Vetter2-120/+45
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>
2016-04-27drm/atomic-helpers: Don't duplicate code in destroy helpersDaniel Vetter1-8/+9
Random drive-by refactoring I spotted. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-27drm: Fix fb leaks and WARN spew in get/set_prop ioctlsDaniel Vetter1-7/+9
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: d0f37cf62979 ("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>
2016-04-27drm: Improve kerneldoc for new mode object refcountingDaniel Vetter1-7/+15
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>
2016-04-27Merge branch 'topic-arcpgu-v6' of ↵Dave Airlie12-0/+947
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
2016-04-27drm/sis: add missing include drm.h for the UAPI headerEmil Velikov1-0/+2
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-27drm/qxl: remove XXX comment from the UAPI headerEmil Velikov1-1/+0
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>
2016-04-27Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev into drm-nextDave Airlie2-3/+2
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
2016-04-26arc: axs10x - add support of ARC PGUAlexey Brodkin1-0/+61
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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