- 12 May, 2016 5 commits
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Eric Anholt authored
This is a basic TFT panel with a 40-pin FPC connector on it. The specification doesn't define timings, but the Adafruit instructions were setting up 800x480 CVT. v2: Add .bus_format and vsync/hsync flags. Signed-off-by:
Eric Anholt <eric@anholt.net> Acked-by:
Rob Herring <robh@kernel.org> [treding@nvidia.com: keep entries properly sorted] Signed-off-by:
Thierry Reding <treding@nvidia.com>
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Eric Anholt authored
This is the vendor for a 7" DPI panel sold by Adafruit which I'd like to describe in DT. Signed-off-by:
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git://anongit.freedesktop.org/tegra/linuxDave Airlie authored
drm/tegra: Changes for v4.7-rc1 Two small changes, one getting rid of the bogus gamma table size and another removing Terje from the MAINTAINERS file since he no longer does any work on host1x or display. * tag 'drm/tegra/for-4.7-rc1' of git://anongit.freedesktop.org/tegra/linux: MAINTAINERS: Remove Terje Bergström as Tegra DRM maintainer drm/tegra: Don't set a gamma table size
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Dave Airlie authored
misc hisilicon cleanups. * 'drm-hisilicon-next' of github.com:xin3liang/linux: drm/hisilicon: Fix DRM_INFO printed issue drm/hisilicon: Make kirin_drm_unbind sufficient drm/hisilicon: Use drm_connector_register_all
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Dave Airlie authored
Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next Summary: - expose HDMI-PHY clock to other drivers. . this patch was included in below patch series but I missed. http://www.spinics.net/lists/dri-devel/msg103097.html - some fixups about DECON5433 driver . this patch corrects vblank handling and fixes up trigger configuration. - use generic functions - gem_prime_mmap and dma_buf_mmap. - use DMA-Mapping API instead of specific one. - some code cleanups and fixeups. * 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos/decon5433: fix trigger configuration drm/exynos/dsi: use of_graph_get_endpoint_by_regs helper drm/exynos/dpi: use of_graph_get_endpoint_by_regs helper drm/exynos: Nuke dummy fb->dirty callback drm/exynos: use directly DMA mapping APIs on g2d drm/exynos/hdmi: Don't print error on deferral due to regulators drm/exynos: fix imported dma-buf to be mapped drm/exynos: support gem_prime_mmap drm/exynos: fimd: harden fimd_calc_clkdiv() drm/exynos: fix cancel page flip code drm/exynos/decon5433: do not use unnecessary software trigger drm/exynos/decon5433: handle vblank in vblank interrupt drm/exynos/hdmi: expose HDMI-PHY clock as pipeline clock
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- 11 May, 2016 3 commits
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Xinliang Liu authored
This patch fixed the bellow no DRM_INFO is printed issue: if (!delay_count) DRM_INFO("phylock and phystopstateclklane is not ready.\n"); There will some printed issues with above info, under certain circumstances: If ((BIT(0) | BIT(2)) & val) is never true, break will not happen and delay_count will be max u32 value (?), and no DRM_INFO is printed. Also if ((BIT(0) | BIT(2)) & val) is true at the last possible loop round, break happens, but now delay_count is already zero ( because of earlier delay_count-- ) and DRM_INFO is erroneously printed. Thanks to Juha Leppänen, he reports to me this issue. Signed-off-by:Xinliang Liu <xinliang.liu@linaro.org> Reported-by:
Juha Leppänen <juha_efku@dnainternet.net>
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Xinliang Liu authored
Remove deprecated drm_put_dev. Clean up everything needed in unbind. Thanks to Daniel Vetter, this issue is reported by him. Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Reported-by:
Daniel Vetter <daniel.vetter@intel.com> Signed-off-by:
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Daniel Vetter authored
Use drm_connector_register_all helper to register connectors. Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by:
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- 10 May, 2016 15 commits
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Andrzej Hajda authored
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>
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Philipp Zabel authored
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:
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Philipp Zabel authored
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:
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Daniel Vetter authored
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:
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Joonyoung Shim authored
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:
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Javier Martinez Canillas authored
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:
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Joonyoung Shim authored
The imported dma-buf should be mapped by sub-system exporting it. Signed-off-by:
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Joonyoung Shim authored
This allows exported dma-bufs to be mapped using gem_prime_mmap. Signed-off-by:
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Tobias Jakobi authored
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:
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Andrzej Hajda authored
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:
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Andrzej Hajda authored
Software trigger should not be used if hardware trigger is configured. Signed-off-by:
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Andrzej Hajda authored
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:
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Andrzej Hajda authored
HDMI-PHY clock should be accessible from other components in the pipeline. Signed-off-by:
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git://git.pengutronix.de:/git/lst/linuxDave Airlie authored
not much new stuff this time. A (micro-)optimization to allow the hangcheck timer to be coalesced with other wakeups in the system and a fix to handle mmaping of prime imported and userptr buffers correctly. I don't think we have seen any actual issues going back to this yet, so I figured it's safer to get this in via drm-next rather than smashing it into fixes. * 'drm-etnaviv-next' of git://git.pengutronix.de:/git/lst/linux: drm/etnaviv: fix mmap operations for userptr and dma-buf objects drm/etnaviv: take etnaviv_gem_obj in etnaviv_gem_mmap_obj drm/etnaviv: use deferrable timer for hangcheck handler timer: add setup_deferrable_timer macro
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git://git.pengutronix.de/git/pza/linuxDave Airlie authored
MT8173 DRM support - device tree binding documentation for all MT8173 display subsystem components - basic mediatek-drm driver for MT8173 with two optional, currently fixed output paths: - DSI encoder support for DSI and (via bridge) eDP panels - DPI encoder support for output to HDMI bridge - necessary clock tree changes for the DPI->HDMI path - export mtk-smi functions used by mediatek-drm * tag 'mediatek-drm-2016-05-09' of git://git.pengutronix.de/git/pza/linux: clk: mediatek: remove hdmitx_dig_cts from TOP clocks clk: mediatek: Add hdmi_ref HDMI PHY PLL reference clock output clk: mediatek: make dpi0_sel propagate rate changes drm/mediatek: Add DPI sub driver drm/mediatek: Add DSI sub driver drm/mediatek: Add DRM Driver for Mediatek SoC MT8173. dt-bindings: drm/mediatek: Add Mediatek display subsystem dts binding memory: mtk-smi: export mtk_smi_larb_get/put
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- 09 May, 2016 4 commits
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Dave Airlie authored
Merge this back as we've built up a fair few conflicts, and I have some newer trees to pull in.
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Dave Airlie authored
Same fix went in previously for some other files. Signed-off-by:Dave Airlie <airlied@redhat.com>
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git://people.freedesktop.org/~robclark/linuxDave Airlie authored
Mostly cleanups, fixes, and 'struct fence' conversion this time around, with one reservation patch which is a-b Sumit (which the fence conversion patches depend on). * 'msm-next' of git://people.freedesktop.org/~robclark/linux: (25 commits) drm/msm: Drop load/unload drm_driver ops drm/msm: Centralize connector registration/unregistration drm/msm/hdmi: Prevent gpio_free related kernel warnings drm/msm: print offender task name on hangcheck recovery drm/msm: fix leak in failed submit path drm/msm: de-indent submit_create() drm/msm: drop return from gpu->submit() drm/msm/mdp4: Don't manage DSI PLL regulators in MDP driver drm/msm/edp: Drop regulator_set_voltage call drm/msm/dsi: Fix regulator API abuse drm/msm: Move call to PTR_ERR_OR_ZERO after reassignment drm/msm/mdp: Add support for more RGBX formats drm: msm: remove unused variable drm/msm: fix ->last_fence() after recover drm/msm: 'struct fence' conversion drm/msm: remove fence_cbs drm/msm: introduce msm_fence_context drm/msm: split locking and pinning BO's drm/msm/gpu: simplify tracking in-flight bo's drm/msm: split out timeout_to_jiffies helper ...
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git://anongit.freedesktop.org/drm-intelDave Airlie authored
Refcounting is hard, so here's a quick pull request with the one-liner to fix up i915. Otherwise just a few other small things I picked up. Plus the regression fix from Marten for rmfb behaviour that lingered around forever since no testers. Feel free to cherry-pick that over to drm-fixes, but given that there's not many who seemed to have cared, meh. * tag 'topic/drm-misc-2016-05-08' of git://anongit.freedesktop.org/drm-intel: drm/i915: Correctly refcount connectors in hw state readou drm/panel: Flesh out kerneldoc drm: Add gpu.tmpl docbook to MAINTAINERS entry drm/core: Do not preserve framebuffer on rmfb, v4. drm: Fix up markup fumble drm/fb_helper: Fix a few typos
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- 08 May, 2016 13 commits
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Linus Torvalds authored
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Archit Taneja authored
The load/unload drm_driver ops are deprecated. They should be removed as they result in creation of devices visible to userspace even before the drm_device is registered. Drop these ops and use drm_dev_alloc/register and drm_dev_unregister/unref to explicitly create and destroy the drm device in the msm platform driver's bind and unbind ops. With this in use, the drm connectors are only registered once the drm_device is registered. It also fixes the issue of stray debugfs files after the msm module is removed. With this, all the debugfs files are removed, and allows successive module insertions/removals. Signed-off-by:Archit Taneja <architt@codeaurora.org>
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Archit Taneja authored
Move the drm_connector registration from the encoder(HDMI/DSI etc) drivers to the msm platform driver. This will simplify the task of ensuring that the connectors are registered only after the drm_device itself is registered. The connectors' destroy ops are made to use kzalloc instead of devm_kzalloc to ensure that that the connectors can be successfully unregistered when the msm driver module is removed. The memory for the connectors is unallocated when drm_mode_config_cleanup() is called during either during an error or during driver remove. Signed-off-by:
Rob Clark <robdclark@gmail.com>
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Archit Taneja authored
Calling the legacy gpio_free on an invalid GPIO (a GPIO numbered -1) results in kernel warnings. This causes a lot of backtraces when we try to unload the drm/msm module. Call gpio_free only on valid GPIOs. Signed-off-by:
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Rob Clark authored
Track the pid per submit, so we can print the name of the task which submitted the batch that caused the gpu to hang. Signed-off-by: -
Rob Clark authored
Signed-off-by: -
Rob Clark authored
Signed-off-by: -
Rob Clark authored
At this point, there is nothing left to fail. And submit already has a fence assigned and is added to the submit_list. Any problems from here on out are asynchronous (ie. hangcheck/recovery). Signed-off-by: -
Archit Taneja authored
The MDP4 driver tries to request and set voltages for regulators required by the DSI PLLs. Firstly, the MDP4 driver shouldn't manage the DSI regulators, this should be handled in the DSI driver. Secondly, it shouldn't try to set a fixed voltage for regulators. Voltage constraints should be specified on the regulator via DT and managed by the regulator core. Remove all the DSI PLL regulator related code from the MDP4 driver. It's managed in the DSI driver for MSM8960/APQ8064 already. Signed-off-by:
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Archit Taneja authored
The eDP driver tries to set a fixed voltage for one of its regulators(vdda) before enabling it. This shouldn't be done by the driver, the voltage constraints should be specified on the regulator via DT and managed by the regulator core. A driver should call regulator_set_voltage only if it needs to change the voltage during runtime. Drop the regulator_set_voltage call. Mention in a comment the voltage that the regulator expects. Signed-off-by:
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Archit Taneja authored
The voltage changing code in this driver is broken and should be removed. The driver sets a single, exact voltage on probe. Unless there is a very good reason for this (which should be documented in comments) constraints like this need to be set via the machine constraints, voltage setting in a driver is expected to be used in cases where the voltage varies at runtime. In addition client drivers should almost never be calling regulator_can_set_voltage(), if the device needs to set a voltage it needs to set the voltage and the regulator core will handle the case where the regulator is fixed voltage. If the driver simply skips setting the voltage if it doesn't have permission then it should just not bother in the first place. Originally authored by Mark Brown <broonie@kernel.org> Remove the min/max voltage data entries per SoC managed by the driver. These aren't needed as we don't try to set voltages any more. Mention in comments the voltages that each regulator expects. Signed-off-by:
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Vaishali Thakkar authored
Here, a location is reset to NULL before being passed to PTR_ERR. So, PTR_ERR should be called before its argument is reassigned to NULL. Further to simplify things use PTR_ERR_OR_ZERO instead of PTR_ERR and IS_ERR. Problem found using Coccinelle. Signed-off-by:
Vaishali Thakkar <vaishali.thakkar@oracle.com> Reviewed-by:
Eric Engestrom <eric.engestrom@imgtec.com> [fixed fmt string warning (s/%ld/%d/)] Signed-off-by:
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Rob Herring authored
Android needs XBGR8888 format. Add all the missing 32-bpp formats without alpha for completeness. Cc: Archit Taneja <architt@codeaurora.org> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by:
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