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| | * | drm/exynos: remove superfluous inclusions of fbdev headerTobias Jakobi2016-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Neither of these files issue any fbdev related calls. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | * | drm/exynos: g2d: drop the _REG postfix from the stride definesTobias Jakobi2016-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes the defines consistent with the rest. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | * | drm/exynos: don't use HW trigger for Exynos5420/5422/5800Javier Martinez Canillas2016-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a6f75aa161c5 ("drm/exynos: fimd: add HW trigger support") added hardware trigger support to the FIMD controller driver. But this broke the display in at least the Exynos5800 Peach Pi Chromebook. So until the issue is fixed, avoid using HW trigger for the Exynos5420 based boards and use SW trigger as it was before the mentioned commit. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | * | drm/exynos: fimd: don't set .has_hw_trigger in s3c6400 driver dataJavier Martinez Canillas2016-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The field value is only checked in fimd_setup_trigger() if .trg_type is I80_HW_TRG so there's no point in setting this field for the s3c6400 if is never going to be used since .trg_type is not set. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| | * | drm/exynos: dp: Fix NULL pointer dereference due uninitialized connectorYakir Yang2016-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 3424e3a4f844 ("drm: bridge: analogix/dp: split exynos dp driver to bridge directory") split the Exynos DP core driver into a core driver and a bridge driver for the Analogix chip since that is also used by Rockchip. But the change introduced a regression causing a NULL pointer dereference when trying to access an uninitialized connector in the driver .get_modes: Fix this by instead of having a connector struct for both the Exynos and Analogix drivers, just use the connector initialized in the bridge driver. Fixes: 3424e3a4f844 ("drm: bridge: analogix/dp: split exynos dp driver to bridge directory") Reported-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Yakir Yang <ykk@rock-chips.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | | gpu: drm: exynos_hdmi: add missing of_node_put after calling of_parse_phandlePeter Chen2016-07-15
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sean Paul <seanpaul@chromium.org>
* | | drm/exynos: make fbdev support really optionalTobias Jakobi2016-07-12
|/ / | | | | | | | | | | | | | | | | | | | | Currently enabling Exynos DRM support automatically pulls in lots of fbdev dependencies. However these deps are unnecessary since DRM core already enables them when needed. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1466769168-31602-1-git-send-email-tjakobi@math.uni-bielefeld.de
* | drm: Lobotomize set_busid nonsense for !pci driversDaniel Vetter2016-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We already have a fallback in place to fill out the unique from dev->unique, which is set to something reasonable in drm_dev_alloc. Which means we only need to have a special set_busid for pci devices, to be able to care the backwards compat code for drm 1.1 around, which libdrm still needs. While developing and testing this patch things blew up in really interesting ways, and the code is rather confusing in naming things between the kernel code, ioctl #defines and libdrm. For the next brave dragon slayer, document all this madness properly in the userspace interface section of gpu.tmpl. v2: Make drm_dev_set_unique static and update kerneldoc. v3: Entire rewrite, plus document what's going on for posterity in the gpu docbook uapi section. v4: Drop accidental amdgpu hunk (Emil). v5: Drop accidental omapdrm vblank counter change (Emil). v6: Rebase on top of the sphinx conversion. Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Cc: Emil Velikov <emil.l.velikov@gmail.com> Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> (virt_gpu) Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
* | drm: exynos: Rely on the default ->best_encoder() behaviorBoris Brezillon2016-06-10
| | | | | | | | | | | | | | | | | | | | | | We have 1:1 relationship between connectors and encoders and the driver is relying on the atomic helpers: we can drop the custom ->best_encoder() implementations and let the core call drm_atomic_helper_best_encoder() for us. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-5-git-send-email-boris.brezillon@free-electrons.com
* | drm/atomic-helper: Massage swap_state signature somewhatDaniel Vetter2016-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - dev is redundant, we have state->atomic - add stall parameter, which must be set when swapping needs to stall for preceeding commits to stop looking at ->state pointers. Currently all drivers need this to be, just prep work for a glorious future. v2: Rebased on top of commit e7cf0963f816fa44190caaf51aeffaa614c340c6 Author: Gerd Hoffmann <kraxel@redhat.com> Date: Tue May 31 08:50:47 2016 +0200 virtio-gpu: add atomic_commit function Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465509992-19284-1-git-send-email-daniel.vetter@ffwll.ch Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-2-git-send-email-daniel.vetter@ffwll.ch
* | drm/exynos: use logical AND in exynos_drm_plane_check_size()Tobias Jakobi2016-06-10
| | | | | | | | | | | | | | | | | | | | The current bitwise AND should result in the same assembler but this is what the code is actually supposed to do. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1464179407-9004-1-git-send-email-tjakobi@math.uni-bielefeld.de
* | drm/exynos: Use for_each_crtc_in_stateDaniel Vetter2016-06-02
|/ | | | | | | | | | | | We want to hide drm_atomic_state internals better. v2: Use drm_crtc_mask (Maarten). Cc: Inki Dae <inki.dae@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1464818821-5736-8-git-send-email-daniel.vetter@ffwll.ch
* drm: Nuke ->vblank_disable_allowedDaniel Vetter2016-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was added in commit 0a3e67a4caac273a3bfc4ced3da364830b1ab241 Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Tue Sep 30 12:14:26 2008 -0700 drm: Rework vblank-wait handling to allow interrupt reduction. to stay backwards-compatible with old UMS code that didn't even tell the kernel when it did a modeset, so that the kernel could save/restore vblank counters. At worst this means vblanks will be somewhat funky on a setup that very likely no one still runs. So let's just nuke it. Plan B would be to set it unconditionally in drm_vblank_init for kms drivers, instead of in each driver separately. So if this patch breaks anything please only restore the hunks in drmP.h and drm_irq.c, plus add a check for DRIVER_MODESET in drm_vblank_init. Stumbled over this in a discussion on irc with Chris. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/exynos/hdmi: add a missing tabDan Carpenter2016-05-17
| | | | | | | | Smatch warns that the if statement isn't indented. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160512195457.GA19095@mwanda
* drm: Drop plane argument from __drm_atomic_helper_plane_destroy_stateDaniel Vetter2016-05-17
| | | | | | | | | | | | | | | | | | | | | | | | It's unused, and really this helper should only look at the state structure and nothing else. v2: Fix commit message (Laurent). v3: Rebase onto mtk driver merge. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Mark Yao <mark.yao@rock-chips.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1462804451-15318-2-git-send-email-daniel.vetter@ffwll.ch
* drm: Remove unused drm_device from drm_gem_object_lookup()Chris Wilson2016-05-17
| | | | | | | | | | | | | drm_gem_object_lookup() has never required the drm_device for its file local translation of the user handle to the GEM object. Let's remove the unused parameter and save some space. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: dri-devel@lists.freedesktop.org Cc: Dave Airlie <airlied@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> [danvet: Fixup kerneldoc too.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* Merge tag 'topic/drm-misc-2016-05-13' of ↵Dave Airlie2016-05-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-next I kinda hoped that I could still sneak in Noralf's drm_simple_display_pipe, since there's intereset by others now (for tilcdc at least). But it wasn't ready by a hair. Oh well. Otherwise random stuff plus prep patches from Noralf. * tag 'topic/drm-misc-2016-05-13' of git://anongit.freedesktop.org/drm-intel: drm/atomic: Add drm_atomic_helper_best_encoder() drm/atomic: Don't skip drm_bridge_*() calls if !drm_encoder_helper_funcs drm/fb-cma-helper: Hook up to DocBook and fix some docs drm/fb-helper: Remove mention of CONFIG_FB_DEFERRED_IO in docs drm/sti: include linux/seq_file.h where needed drm/tegra: Use lockless gem BO free callback drm/exynos: Use lockless gem BO free callback drm: Make drm_encoder_helper_funcs optional
| * drm/exynos: Use lockless gem BO free callbackDaniel Vetter2016-05-10
| | | | | | | | | | | | | | | | | | | | No dev->struct_mutex anywhere to be seen. Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-18-git-send-email-daniel.vetter@ffwll.ch
* | drm/exynos/decon5433: fix trigger configurationAndrzej Hajda2016-05-10
| | | | | | | | | | | | | | | | | | | | It seems trigger cannot be configured too early, otherwise it does not work in case of panel. The patch fixes also trigger flag logic, previously HW-TRIGGER flag was cleared in case of panel - as a result panel used always software trigger. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos/dsi: use of_graph_get_endpoint_by_regs helperPhilipp Zabel2016-05-10
| | | | | | | | | | | | | | | | | | | | This allows to remove the local of_graph_get_port_by_reg(), of_graph_get_endpoint_by_reg(), and of_get_child_by_name_reg() functions. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos/dpi: use of_graph_get_endpoint_by_regs helperPhilipp Zabel2016-05-10
| | | | | | | | | | | | | | | | | | | | This allows to remove the local of_graph_get_port_by_reg(), of_graph_get_endpoint_by_reg(), of_get_child_by_name_reg(), and of_graph_get_remote_port_parent() functions. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos: Nuke dummy fb->dirty callbackDaniel Vetter2016-05-10
| | | | | | | | | | | | | | | | | | | | It's an optional hook. Might be needed for frontbuffer rendering on manual upload displays, but a simple TODO doesn't explain at all what needs to be done or why. Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos: use directly DMA mapping APIs on g2dJoonyoung Shim2016-05-10
| | | | | | | | | | | | | | | | There is no reason to be wapper functions to use DMA mapping APIs. Use directly DMA mapping APIs and remove the wapper functions. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos/hdmi: Don't print error on deferral due to regulatorsJavier Martinez Canillas2016-05-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The regulators may not be available just because their driver's probe function was just not executed and so the regulators not registered. So, in this case the Exynos HDMI driver should not print logs since a -EPROBE_DEFER is not really an error and that will just pollute the kernel log and confuse users. This patch prevents the following misleading messages to be printed: [ 1.443638] [drm:hdmi_probe] *ERROR* failed to get regulators [ 1.449326] [drm:hdmi_probe] *ERROR* hdmi_resources_init failed Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos: fix imported dma-buf to be mappedJoonyoung Shim2016-05-10
| | | | | | | | | | | | | | The imported dma-buf should be mapped by sub-system exporting it. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos: support gem_prime_mmapJoonyoung Shim2016-05-10
| | | | | | | | | | | | | | This allows exported dma-bufs to be mapped using gem_prime_mmap. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos: fimd: harden fimd_calc_clkdiv()Tobias Jakobi2016-05-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't use the vrefresh field of the DRM mode since this one is supposed to only be used for debug purpose. Instead use the clock field which should also provide much more precise information. Also sanitize the case in which the clock value should be zero. We then just default to the maximum clock divisor. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos: fix cancel page flip codeAndrzej Hajda2016-05-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Driver code did not remove event from the list of pending events before destroy. As a result drm core later tried to inspect invalid memory location. The patch replaces removal code with call to core helper. The bug was detected using KASAN: [ 10.107249] ================================================================== [ 10.107518] BUG: KASAN: use-after-free in drm_release+0xe9c/0x1000 at addr ffffffc089154a18 [ 10.107784] Read of size 8 by task modetest/103 [ 10.107931] ============================================================================= [ 10.113191] BUG kmalloc-128 (Not tainted): kasan: bad access detected [ 10.119608] ----------------------------------------------------------------------------- [ 10.119608] [ 10.129243] Disabling lock debugging due to kernel taint [ 10.134551] INFO: Allocated in drm_mode_page_flip_ioctl+0x500/0xa98 age=4 cpu=0 pid=103 [ 10.142532] alloc_debug_processing+0x18c/0x198 [ 10.147043] ___slab_alloc.constprop.28+0x360/0x380 [ 10.151906] __slab_alloc.isra.25.constprop.27+0x54/0xa0 [ 10.157197] kmem_cache_alloc_trace+0x370/0x3b0 [ 10.161709] drm_mode_page_flip_ioctl+0x500/0xa98 [ 10.166400] drm_ioctl+0x4c4/0xb68 [ 10.169787] do_vfs_ioctl+0x16c/0xeb8 [ 10.173429] SyS_ioctl+0x8c/0xa0 [ 10.176642] el0_svc_naked+0x24/0x28 [ 10.180204] INFO: Freed in exynos_drm_crtc_cancel_page_flip+0xe0/0x160 age=0 cpu=0 pid=103 [ 10.188447] free_debug_processing+0x174/0x388 [ 10.192871] __slab_free+0x2e8/0x438 [ 10.196431] kfree+0x350/0x360 [ 10.199469] exynos_drm_crtc_cancel_page_flip+0xe0/0x160 [ 10.204762] exynos_drm_preclose+0x58/0xa0 [ 10.208844] drm_release+0x1f0/0x1000 [ 10.212491] __fput+0x1c4/0x5b8 [ 10.215613] ____fput+0xc/0x18 [ 10.218654] task_work_run+0x130/0x198 [ 10.222385] do_exit+0x700/0x2278 [ 10.225681] do_group_exit+0xe4/0x2c8 [ 10.229327] SyS_exit_group+0x1c/0x20 [ 10.232973] el0_svc_naked+0x24/0x28 [ 10.236532] INFO: Slab 0xffffffbdc2a45500 objects=32 used=10 fp=0xffffffc089154a00 flags=0x4080 [ 10.245210] INFO: Object 0xffffffc089154a00 @offset=2560 fp=0xffffffc089157600 [ 10.245210] ... [ 10.384532] CPU: 0 PID: 103 Comm: modetest Tainted: G B 4.5.0-rc3-00748-gd5e2881 #271 [ 10.398325] Call trace: [ 10.400764] [<ffffffc000091428>] dump_backtrace+0x0/0x328 [ 10.406141] [<ffffffc000091764>] show_stack+0x14/0x20 [ 10.411176] [<ffffffc00089c550>] dump_stack+0xb0/0xe8 [ 10.416210] [<ffffffc000395778>] print_trailer+0xf8/0x160 [ 10.421592] [<ffffffc00039b5cc>] object_err+0x3c/0x50 [ 10.426626] [<ffffffc00039d630>] kasan_report_error+0x248/0x550 [ 10.432527] [<ffffffc00039da50>] __asan_report_load8_noabort+0x40/0x48 [ 10.439039] [<ffffffc000b5b724>] drm_release+0xe9c/0x1000 [ 10.444419] [<ffffffc0003d340c>] __fput+0x1c4/0x5b8 [ 10.449280] [<ffffffc0003d3884>] ____fput+0xc/0x18 [ 10.454055] [<ffffffc000101aa8>] task_work_run+0x130/0x198 [ 10.459522] [<ffffffc0000bc058>] do_exit+0x700/0x2278 [ 10.464557] [<ffffffc0000bdcfc>] do_group_exit+0xe4/0x2c8 [ 10.469939] [<ffffffc0000bdefc>] SyS_exit_group+0x1c/0x20 [ 10.475320] [<ffffffc000087530>] el0_svc_naked+0x24/0x28 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos/decon5433: do not use unnecessary software triggerAndrzej Hajda2016-05-10
| | | | | | | | | | | | | | Software trigger should not be used if hardware trigger is configured. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos/decon5433: handle vblank in vblank interruptAndrzej Hajda2016-05-10
| | | | | | | | | | | | | | | | | | | | vblank should be signaled to userspace after reading framebuffers not before, signaling it in TE interrupt looks wrong. TE triggers reading framebuffers so it is the worst moment. Tearing is not observable because hardware prevents it, but there are frequently skipped vblank events. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | drm/exynos/hdmi: expose HDMI-PHY clock as pipeline clockAndrzej Hajda2016-05-10
| | | | | | | | | | | | | | HDMI-PHY clock should be accessible from other components in the pipeline. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | Merge tag 'v4.6-rc7' into drm-nextDave Airlie2016-05-08
|\ \ | |/ |/| | | | | Merge this back as we've built up a fair few conflicts, and I have some newer trees to pull in.
| * drm/exynos: Use VIDEO_SAMSUNG_S5P_G2D=n as G2D Kconfig dependencyJavier Martinez Canillas2016-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * drm/exynos: fix a warning messageDan Carpenter2016-04-12
| | | | | | | | | | | | | | | | 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>
| * drm/exynos: mic: fix an error codeDan Carpenter2016-04-12
| | | | | | | | | | | | | | 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>
| * drm/exynos: fimd: fix broken dp_clock controlMarek Szyprowski2016-04-12
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * drm/exynos: build fbdev code conditionallyAndrzej Hajda2016-04-12
| | | | | | | | | | | | | | | | | | | | 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>
| * drm/exynos: fix adjusted_mode pointer in exynos_plane_mode_setAndrzej Hajda2016-04-12
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * drm/exynos: fix error handling in exynos_drm_subdrv_openArnd Bergmann2016-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | Merge tag 'topic/drm-misc-2016-05-04' of ↵Dave Airlie2016-05-04
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-next Ofc I promise just a few leftovers for drm-misc and somehow it's the biggest pull. But really mostly trivial stuff: - MAINTAINERS updates from Emil - rename async to nonblock in atomic_commit to avoid the confusion between nonblocking ioctl and async flip (= not vblank synced), from Maarten. Needs to be regened with newer drivers, but probably only after -rc1 to catch them all. - actually lockless gem_object_free, plus acked driver conversion patches. All the trickier prep stuff already is in drm-next. - Noralf's nice work for generic defio support in our fbdev emulation. Keeps the udl hack, and qxl is tested by Gerd. * tag 'topic/drm-misc-2016-05-04' of git://anongit.freedesktop.org/drm-intel: (47 commits) drm: Fixup locking WARN_ON mistake around gem_object_free_unlocked drm/etnaviv: Use lockless gem BO free callback drm/imx: Use lockless gem BO free callback drm/radeon: Use lockless gem BO free callback drm/amdgpu: Use lockless gem BO free callback drm/gem: support BO freeing without dev->struct_mutex MAINTAINERS: Add myself for the new VC4 (RPi GPU) graphics driver. MAINTAINERS: Add a bunch of legacy (UMS) DRM drivers MAINTAINERS: Add a few DRM drivers by Dave Airlie MAINTAINERS: List the correct git repo for the Renesas DRM drivers MAINTAINERS: Update the files list for the Renesas DRM drivers MAINTAINERS: Update the files list for the Armada DRM driver MAINTAINERS: Update the files list for the Rockchip DRM driver MAINTAINERS: Update the files list for the Exynos DRM driver MAINTAINERS: Add maintainer entry for the VMWGFX DRM driver MAINTAINERS: Add maintainer entry for the MSM DRM driver MAINTAINERS: Add maintainer entry for the Nouveau DRM driver MAINTAINERS: Update the files list for the Etnaviv DRM driver MAINTAINERS: Remove unneded wildcard for the i915 DRM driver drm/atomic: Add WARN_ON when state->acquire_ctx is not set. ...
| * | drm/exynos: Rename async to nonblock.Maarten Lankhorst2016-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | The async name is deprecated and should be changed to nonblocking. Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461679905-30177-5-git-send-email-maarten.lankhorst@linux.intel.com
* | | drm/exynos: clean up register definions for fimd and deconInki Dae2016-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes suffixes from I80 relevant register definitions, which are misleading. This is based on top of below patch set, http://www.spinics.net/lists/dri-devel/msg104057.html Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: decon: clean up interface typeInki Dae2016-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up interface type relevant codes. Trigger mode is determinded only by i80 mode, which isn't related to Display types - HDMI or Display controller. So this patch makes the trigger mode to be set only in case of i80 mode - For DECON-TV, HW Trigger mode is flaged mandatorily because HDMI Timing Generator generates VSYNC signal which works as a hardware trigger. Changelog v2. - If interface type is HDMI then set out_type to I80. - fix compile warning. Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: fimd: add HW trigger supportInki Dae2016-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds HW trigger support on i80 mode. Until now, Exynos DRM only supported SW trigger which was set SWTRGCMD bit of TRIGCON register by CPU to transfer scanout buffer to Display bus device or panel. With this patch, the transmission to Display bus device or panel will be initiated by FIMD controller. Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: clean up wait_for_vblankInki Dae2016-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up wait_for_vblank relevant codes. wait_for_vblank callback isn't used anymore in Exynos drm driver so it removes relevant codes. However, display controllers - FIMD and DECON - still use this function driver internally to ensure shadow registers to be updated, which resolves page fault issue so keep it. Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: mixer: use generic of_device_get_match_data helperMarek Szyprowski2016-04-29
| | | | | | | | | | | | | | | | | | | | | Simplify code by replacing custom code by generic helper. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: mixer: remove support for non-dt platformsMarek Szyprowski2016-04-29
| | | | | | | | | | | | | | | | | | | | | | | | There are no non-devicetree based Exynos platforms in mainline, so there no point keeping old platform driver data for them. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: hdmi: use generic of_device_get_match_data helperMarek Szyprowski2016-04-29
| | | | | | | | | | | | | | | | | | | | | Simplify code by replacing custom code by generic helper. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: rotator: use generic of_device_get_match_data helperMarek Szyprowski2016-04-29
| | | | | | | | | | | | | | | | | | | | | Simplify code by replacing custom code by generic helper. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: fimd: use generic of_device_get_match_data helperMarek Szyprowski2016-04-29
| | | | | | | | | | | | | | | | | | | | | Simplify code by replacing custom code by generic helper. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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