- 22 Jun, 2015 11 commits
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Hyungwon Hwang authored
This patch make the driver to use an array for clock access. The number of clocks are different from the existing MIPI DSI driver and Exynos5433 MIPI DSI driver. So this patch is needed before adding support for Exynos5433 MIPI DSI driver. Signed-off-by:
Hyungwon Hwang <human.hwang@samsung.com> Signed-off-by:
Inki Dae <inki.dae@samsung.com>
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Hyungwon Hwang authored
Exynos MIPI DSI driver uses some static values such as address offsets, register setting values, and etc. This patch makes the driver get those values from the driver data. Signed-off-by:
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Hyungwon Hwang authored
This patch adds macros for register writing/reading. This is needed for adding support Exynos5433 MIPI DSI driver, not by using if statement, but by using driver data. Signed-off-by:
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Hyungwon Hwang authored
This patch renames pll_clk to sclk_clk. The clock referenced by pll_clk is actually not the pll input clock for dsi. The pll input clock comes from the board's oscillator directly. But for the backward compatibility, the old clock name "pll_clk" is also OK. Signed-off-by:
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Hyungwon Hwang authored
MIC(Mobile image compressor) is newly added IP in Exynos5433. MIC resides between decon and mipi dsim, and compresses frame data by 50%. With dsi, not display port, to send frame data to the panel, the bandwidth is not enough. That is why this compressor is introduced. Signed-off-by:
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Hyungwon Hwang authored
When there are multiple ports or multiple endpoints in a port, they have to be distinguished by the value of reg property. It is common. The drivers can get the specific endpoint in the specific port via this function. Now the drivers have to implement this code in themselves or have to force the order of dt nodes to get the right node. Signed-off-by:
Rob Herring <robh+dt@kernel.org> Signed-off-by:
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Joonyoung Shim authored
DECON(Display and Enhancement Controller) is new IP replacing FIMD in Exynos5433. This patch adds Exynos5433 decon driver. Signed-off-by:
Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by:
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Hyungwon Hwang authored
This patch is a preparation patch for adding support for Exynos5433 DECON. Exynos7 DECON have to be distinguished from Exynos5433 DECON. Signed-off-by:
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Hyungwon Hwang authored
Every CRTC drivers in Exynos DRM implements the code which checks whether IOMMU is supported or not, and if supported enable it. Making new helper for it generalize each CRTC drivers. Signed-off-by:
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Hyungwon Hwang authored
Without this dependency, Kbuild is confused and the configs below them are not placed under Exynos DRM. This patch fixes it, so the configs below them become to be placed under Exynos DRM. Signed-off-by:
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Hyungwon Hwang authored
This dependency is a historical thing. It is added when this DP driver is under media subsystem. Now because it is under Exynos DRM, this dependency is not needed anymore. Signed-off-by:
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- 19 Jun, 2015 29 commits
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Inki Dae authored
This patch resolves the issue that refresh rate got low at extension mode test with fimd and vidi combination. The problem was because atomic_commit callback waited for the completion of vblank to gaurantee crtc relevant registers are updated from shadow registers to real ones. However, the waiting there is really unnecessary because page flip operation does already it. Signed-off-by: -
Krzysztof Kozlowski authored
The field 'vma' of 'exynos_drm_gem_obj' structure was introduced in 2a3098ff ("drm/exynos: add userptr feature for g2d module") but is not referenced anywhere. One instance of 'exynos_drm_gem_obj' may be mapped to multiple user-space VMAs so 'vma' field does not look useful anyway. Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by:
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Inki Dae authored
This patch resolves page fault issue with iommu and atomic feature when modetest test application is terminated. ENWIN_F field of WINCONx register enables or disable a dma channel to each hardware overlay - the value of the field will be updated to real register after vsync. So this patch makes sure the dma channel is disabled by waiting for vsync one time after clearing shadow registers to all dma channels. Below shows the page fault issue: setting mode 720x1280-60Hz@XR24 on connectors 31, crtc 29 freq: 59.99Hz [ 34.831025] PAGE FAULT occurred at 0x20400000 by 11e20000.sysmmu(Page table base: 0x6e324000) [ 34.838072] Lv1 entry: 0x6e92dc01 [ 34.841489] ------------[ cut here ]------------ [ 34.846058] kernel BUG at drivers/iommu/exynos-iommu.c:364! [ 34.851614] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM [ 34.857428] Modules linked in: <--snip--> [ 35.210894] [<c02880d0>] (exynos_sysmmu_irq) from [<c00608f8>] (handle_irq_event_percpu+0x78/0x134) [ 35.219914] [<c00608f8>] (handle_irq_event_percpu) from [<c00609f0>] (handle_irq_event+0x3c/0x5c) [ 35.228768] [<c00609f0>] (handle_irq_event) from [<c0063698>] (handle_level_irq+0xc4/0x13c) [ 35.237101] [<c0063698>] (handle_level_irq) from [<c005ff7c>] (generic_handle_irq+0x2c/0x3c) [ 35.245521] [<c005ff7c>] (generic_handle_irq) from [<c02214ec>] (combiner_handle_cascade_irq+0x94/0x100) [ 35.254980] [<c02214ec>] (combiner_handle_cascade_irq) from [<c005ff7c>] (generic_handle_irq+0x2c/0x3c) [ 35.264353] [<c005ff7c>] (generic_handle_irq) from [<c0060248>] (__handle_domain_irq+0x7c/0xec) [ 35.273034] [<c0060248>] (__handle_domain_irq) from [<c0009434>] (gic_handle_irq+0x30/0x68) [ 35.281366] [<c0009434>] (gic_handle_irq) from [<c0012ec0>] (__irq_svc+0x40/0x74) Signed-off-by: -
Marek Szyprowski authored
DRM Exynos driver is relying on dma-mapping internal structures when used with IOMMU enabled. This patch partially hides dma-mapping internal things by using proper get_dma_ops/set_dma_ops calls. Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
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Marek Szyprowski authored
This patch adds code, which detach sub-device nodes from default iommu domain if such has been configured. This lets Exynos DRM driver to properly attach sub-devices to its own, common for all sub-devices domain. Signed-off-by:
Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by:
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Marek Szyprowski authored
One should not do any assumptions on the stare of the fimd hardware during driver initialization, so to properly reset fimd before enabling IOMMU, one should ensure that all power domains and clocks are really enabled. This patch adds pm_runtime and clocks management in the fimd_clear_channel() function to ensure that any access to fimd registers will be performed with clocks and power domains enabled. Signed-off-by:
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Joonyoung Shim authored
When the fimd is disabled by fimd_disable(), enabled overlay layers also are disabled. If clocks for fimd are enabled by fimd_enable() on this case, it can lead IOMMU page fault. The reason is that VIDCON0_ENVID and VIDCON0_ENVID_F bits of VIDCON0 register are set still even though fimd is disabled, so it may continue display output of prior when clocks for fimd are enabled again. Signed-off-by:
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Joonyoung Shim authored
With atomic modesetting all the control for CRTC, Planes, Encoders and Connectors should come from DRM core, so the driver is not allowed to enable or disable planes from inside the crtc_enable()/disable() call. But it needs to disable planes with crtc_disable in exynos driver internally. Because crtc is disabled before plane is disabled, it means plane_disable just returns without any register changes, then we cannot be sure setting register to disable plane when crtc is disable. This patch removes this chainned calls to enable plane from exynos hw drivers code letting only DRM core touch planes except to disable plane. Also it leads eliminable enabled and resume of struct exynos_drm_plane. Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by:
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Joonyoung Shim authored
The reason waiting vblank is to be power gated and disabled clocks after dma operation is completed. The dma operation is stopped already before be power gated and clocks are disabled when mixer is disabled by commit 381be025("drm/exynos: stop mixer before gating clocks during poweroff"). Don't need to wait vblank anymore. Signed-off-by:
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Hyungwon Hwang authored
FIMC & GSC driver can calculate the offset of planes. So there are use cases which IPP receives just one GEM handle of an image with multiple plane. This patch extends ipp_validate_mem_node() to validate this case. Signed-off-by:
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Hyungwon Hwang authored
Config depends on the opreation. So it must be referenced by an operation id, not a property id. Signed-off-by:
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Hyungwon Hwang authored
exynos_dsi_host_transfer() can be called through a panel driver while DSI is turning down. It is possible because the function checks only whether DSI is initialized or not, and there is a moment which DSI is set by uninitialized, but DSI is still turning down. To prevent it, DSI must be set by disabled before starting to be turned down, and exynos_dsi_host_transfer() must check whether DSI is enabled or not. Kernel dump: [ 4721.351448] Unhandled fault: synchronous external abort (0x96000210) at 0xffffff800015e018 [ 4721.351809] Internal error: : 96000210 [#1] PREEMPT SMP [ 4721.352031] Modules linked in: [ 4721.352173] CPU: 2 PID: 300 Comm: deviced Tainted: G W 4.0.4-01017-g7964a87 #1 [ 4721.353989] Hardware name: Samsung DRACO board (DT) [ 4721.358852] task: ffffffc0a0b70000 ti: ffffffc0a00ec000 task.ti: ffffffc0a00ec000 [ 4721.366327] PC is at exynos_dsi_enable_lane+0x14/0x5c [ 4721.371353] LR is at exynos_dsi_host_transfer+0x834/0x8d8 [ 4721.376731] pc : [<ffffffc000432bcc>] lr : [<ffffffc000434590>] pstate: 60000145 [ 4721.384107] sp : ffffffc0a00efbe0 [ 4721.387405] x29: ffffffc0a00efbe0 x28: ffffffc0a00ec000 [ 4721.392699] x27: ffffffc000968000 x26: 0000000000000040 [ 4721.397994] x25: ffffffc000f74dc0 x24: ffffffc0a00efec8 [ 4721.403290] x23: ffffffc0a4815400 x22: ffffffc0009f2729 [ 4721.408584] x21: ffffffc0a00efcc8 x20: ffffffc0a4a2a848 [ 4721.413879] x19: ffffffc0a4a2a818 x18: 0000000000000004 [ 4721.419173] x17: 0000007faa5cddf0 x16: ffffffc0001a40a8 [ 4721.424469] x15: 0000000000000009 x14: 000000000000000d [ 4721.429762] x13: 6e6e6f63206b726f x12: 0000000000000010 [ 4721.435058] x11: 0101010101010101 x10: 0000000000000000 [ 4721.440353] x9 : 000000000000000a x8 : 8386838282818381 [ 4721.445648] x7 : ffffffc0a201efe8 x6 : 0000000000000000 [ 4721.450943] x5 : 00000000fffffffa x4 : ffffffc0a201f170 [ 4721.456237] x3 : ffffff800015e000 x2 : ffffff800015e018 [ 4721.461531] x1 : 000000000000000f x0 : ffffffc0a4a2a818 [ 4721.466826] [ 4721.468305] Process deviced (pid: 300, stack limit = 0xffffffc0a00ec028) [ 4721.474989] Stack: (0xffffffc0a00efbe0 to 0xffffffc0a00f0000) [ 4721.480720] fbe0: a00efca0 ffffffc0 0042c944 ffffffc0 a0f2d680 ffffffc0 00000024 00000000 [ 4721.488895] fc00: a4b6d000 ffffffc0 009f2729 ffffffc0 a4815400 ffffffc0 a00efec8 ffffffc0 Signed-off-by:
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Andrzej Hajda authored
SoC checking code is not necessary anymore, as exynos_drm_match_add and exynos_drm_platform_probe already properly handles situation when there are no Exynos DRM components. Signed-off-by:
Andrzej Hajda <a.hajda@samsung.com> Tested-by:
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Andrzej Hajda authored
In case there are multiple pipelines and deferred probe occurs, only components of the first pipeline were bound. As a result only one pipeline was available. The main cause of this issue was dynamic generation of component match table - every component driver during probe registered itself on helper list, if there was at least one pipeline present on this list component match table were created without deferred components. This patch removes this helper list, instead it creates match table from existing devices requiring exynos_drm KMS drivers. This way match table do not depend on probe/deferral order and contains all KMS components. As a side effect patch makes the code cleaner and significantly smaller. Signed-off-by:
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Andrzej Hajda authored
Code registering different drivers and simple platform devices was dispersed across multiple sub-modules. This patch moves it to one place. As a result initialization code is shorter and cleaner and should simplify further development. Signed-off-by:
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Gustavo Padovan authored
Check error and call DRM_ERROR if clk_prepare_enable() fails. Signed-off-by:
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Inki Dae authored
This patch makes one of Linux framebuffer and DRM CRTC drivers to be enabled. Display controllers, FIMD and DECON, can be controlled by Linux framebuffer or DRM CRTC drivers so only one of them should be enabled. Signed-off-by:
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Inki Dae authored
This patch removes unnsed varables in vidi_disable function. Signed-off-by:
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Gustavo Padovan authored
To follow more closely the new atomic API we split the dpms() helper into the enable() and disable() helper to get exactly the same semantics. Signed-off-by:
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Gustavo Padovan authored
The planes are already disabled by the drm_atomic_helper_commit() code so we don't need to disable the in these two places. Signed-off-by:
Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by:
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Gustavo Padovan authored
Run dpms operations through the atomic intefaces. This basically removes the .dpms() callback from econders and crtcs and use .disable() and .enable() to turn the crtc on and off. v2: Address comments by Joonyoung: - make hdmi code call ->disable() instead of ->dpms() - do not use WARN_ON on crtc enable/disable v3: - Fix build failure after the hdmi change in v2 - Change dpms helper of ptn3460 bridge v4: - remove win_commit() call from .enable() v5: - move .atomic_check() to the atomic PageFlip patch, and transform it in .atomic_begin() Signed-off-by: -
Gustavo Padovan authored
exynos needs to update planes with the crtc enabled (mainly for the FIMD case) so this specific atomic commit changes the order of drm_atomic_helper_commit_modeset_enables() and drm_atomic_helper_commit_planes() to commit planes after we enable crtc and encoders. Signed-off-by:
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Gustavo Padovan authored
This is a preparation commit to move exynos_drm_crtc_disable() together with the future exynos_drm_crtc_enable() that will come from the split of exynos_drm_crtc_dpms() callback. Signed-off-by:
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Gustavo Padovan authored
Everything starts disabled so we don't really need to disable anything. Signed-off-by:
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Gustavo Padovan authored
Now that no one is using the functions exported by exynos_drm_plane due to the atomic conversion we can make remove some of the them or make them static. v2: remove unused exynos_drm_crtc v3: fix checkpatch error (reported by Joonyoung) Signed-off-by:
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Gustavo Padovan authored
PageFlips now use the atomic helper to work through the atomic modesetting API. Async page flips are not supported yet. v2: Add .atomic_begin() step to handle the vblank part we removed from exynos page_flip code. Signed-off-by:
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Gustavo Padovan authored
Now that phase 1 and 2 are complete switch .set_config helper to use the atomic one. v2: also remove .prepare() callback v3: remove .mode_set() and .mode_set_base() and encoder's .prepare() callbacks Signed-off-by:
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Gustavo Padovan authored
Now that phase 1 and 2 are complete we can switch the update/disable_plane callbacks to their atomic version. Signed-off-by:
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Gustavo Padovan authored
Use drm_atomic_set_fb_for_plane() in the legacy page_flip path to keep track of the framebuffer pointer and reference. Signed-off-by:
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