- 26 Nov, 2014 7 commits
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Lars-Peter Clausen authored
The drm_get_edid() function performs direct I2C accesses to read EDID blocks, assuming that the monitor DDC interface is directly connected to the I2C bus. It can't thus be used with HDMI encoders that control the DDC bus and expose EDID blocks through a different interface. Refactor drm_do_get_edid() to take a block read callback function instead of an I2C adapter, and export it for direct use by drivers. As in the general case the DDC bus is accessible by the kernel at the I2C level, drivers must make all reasonable efforts to expose it as an I2C adapter and use drm_get_edid() instead of abusing this function. Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by:
Rob Clark <robdclark@gmail.com> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Laurent Pinchart authored
SoCs that integrate the DU have no internal HDMI encoder, support external encoders only. Signed-off-by: -
Laurent Pinchart authored
DRM slave encoders require their associated struct drm_encoder instance to be embedded in a struct drm_slave_encoder. This makes processing encoders regardless of their types needlessly and painfully complex in drivers that use a mix of slave encoders and custom encoders. Such a driver will need to either create drm_slave_encoder instances that fake their embedded encoder instance, or to turn all drm_encoder instances into drm_slave_encoder instances. Between the two evils, one must choose the lesser. Use drm_slave_encoder everywhere. Signed-off-by: -
Laurent Pinchart authored
Add a new macro to downcast an rcar_du_encoder pointer to a drm_encoder pointer and use it. This prepares for the replacement of the rcar_drm_encoder encoder field with a drm_slave_encoder. Signed-off-by: -
Laurent Pinchart authored
The encoder DT node will be needed to register an external HDMI encoder. Pass it to the rcar_du_encoder_init() function to prepare for HDMI support. Signed-off-by: -
Laurent Pinchart authored
All platforms now instantiate the DU through DT, platform data support isn't needed anymore. Signed-off-by: -
Julia Lawall authored
Propagate the error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
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- 25 Nov, 2014 7 commits
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Laurent Pinchart authored
Renesas ARM Based SoC DT DU Updates for v3.19 * Enable DU using DT on marzen/r8a7779, lager/r8a7790 and koelsch/r8a7791
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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 Add Exynos4415 SoC support, some fixups and cleanups. Summary: - Resolve kernel lockup issue incurred by probe request in probe context. . For this, it moves all register codes of sub drivers into init function and adds component binding support for vidi driver. - Add Exynos4415 SoC support. - Make each manager and display object to be embedded in each driver context. - Fix and clean up FIMD and MIPI-DSI drivers. - Clean up unnecesary or wrong descriptions. - And trivial cleanups. * 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (58 commits) drm/exynos: avoid leak if exynos_dpi_probe() fails drm/exynos: Fix exynos_dpi_remove() parameter drm/exynos: vidi: add component support drm/exynos: fix exynos_drm_component_del drm/exynos/ipp: fix error return code drm/exynos: clean up machine compatible string check drm/exynos: move Exynos platform drivers registration to init Revert "drm/exynos: fix null pointer dereference issue" drm/exynos/dpi: stop using display->ctx pointer drm/exynos/dpi: embed display into private context drm/exynos/dp: stop using display->ctx pointer drm/exynos/dp: embed display into private context drm/exynos/vidi: stop using display->ctx pointer drm/exynos/vidi: embed display into private context drm/exynos/hdmi: stop using display->ctx pointer drm/exynos/hdmi: embed display into private context drm/exynos/fimd: stop using manager->ctx pointer drm/exynos/fimd: embed manager into private context drm/exynos/vidi: stop using manager->ctx pointer drm/exynos/vidi: embed manager into private context ...
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git://people.freedesktop.org/~robclark/linuxDave Airlie authored
Now that we have the bits needed for mdp5 atomic, here is the followup pull request I mentioned. Main highlights are: 1) mdp5 multiple crtc and public plane support (no more hard-coded mixer setup!) 2) mdp5 atomic conversion 3) couple atomic helper fixes for issues found during mdp5 atomic debug (reviewed by danvet.. but he didn't plane to send an atomic-fixes pull request so I agreed to tack them on to mine) * 'msm-next' of git://people.freedesktop.org/~robclark/linux: drm/atomic: shutdown *current* encoder drm/atomic: check mode_changed *after* atomic_check drm/msm/mdp4: fix mixer setup for multi-crtc + planes drm/msm/mdp5: dpms(OFF) cleanups drm/msm/mdp5: atomic drm/msm: atomic fixes drm/msm/mdp5: remove global mdp5_ctl_mgr drm/msm/mdp5: don't use void * for opaque types drm/msm: add multiple CRTC and overlay support drm/msm/mdp5: set rate before enabling clk drm/msm/mdp5: introduce mdp5_cfg module drm/msm/mdp5: make SMP module dynamically configurable drm/msm/hdmi: remove useless kref drm/msm/mdp5: get the core clock rate from MDP5 config drm/msm/mdp5: use irqdomains
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Gustavo Padovan authored
The component must be deleted if the probe fails. Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by:
Inki Dae <inki.dae@samsung.com>
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Gustavo Padovan authored
exynos_dpi_remove() should receive a exynos_drm_display but when DRM_EXYNOS_DPI was disabled it was receiving a struct device resulting in ia compiler warning. Signed-off-by:
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Inki Dae authored
This patch adds component support for vidi driver. vidi driver is a kms driver so it doesn't need to be registered to exynos_drm_subdrv_list. For this, it changes for the component framework to be used for vidi driver. This patch fixes below error also, # echo 1 > /sys/devices/platform/exynos-drm-vidi/connection [ 55.618529] ------------[ cut here ]------------ [ 55.621960] WARNING: CPU: 0 PID: 1397 at drivers/gpu/drm/drm_irq.c:1203 exynos_drm_crtc_dpms+0x88/0x17c() [ 55.631268] Modules linked in: [ 55.634278] CPU: 0 PID: 1397 Comm: sh Not tainted 3.18.0-rc2-146253-g31449d7 #1154 [ 55.641885] [<c0014400>] (unwind_backtrace) from [<c0011570>] (show_stack+0x10/0x14) [ 55.649597] [<c0011570>] (show_stack) from [<c04764f4>] (dump_stack+0x84/0xc4) [ 55.656802] [<c04764f4>] (dump_stack) from [<c00218b8>] (warn_slowpath_common+0x6c/0x88) [ 55.664866] [<c00218b8>] (warn_slowpath_common) from [<c0021970>] (warn_slowpath_null+0x1c/0x24) [ 55.673632] [<c0021970>] (warn_slowpath_null) from [<c027a780>] (exynos_drm_crtc_dpms+0x88/0x17c) [ 55.682482] [<c027a780>] (exynos_drm_crtc_dpms) from [<c027a910>] (exynos_drm_crtc_commit+0x14/0x44) [ 55.691622] [<c027a910>] (exynos_drm_crtc_commit) from [<c025521c>] (drm_crtc_helper_set_mode+0x3d0/0x51c) [ 55.701233] [<c025521c>] (drm_crtc_helper_set_mode) from [<c0255d68>] (drm_crtc_helper_set_config+0x87c/0x9dc) [ 55.711230] [<c0255d68>] (drm_crtc_helper_set_config) from [<c026afa8>] (drm_mode_set_config_internal+0x58/0xd4) [ 55.721380] [<c026afa8>] (drm_mode_set_config_internal) from [<c025c208>] (restore_fbdev_mode+0xcc/0xec) [ 55.730834] [<c025c208>] (restore_fbdev_mode) from [<c025c244>] (drm_fb_helper_restore_fbdev_mode_unlocked+0x1c/0x30) [ 55.741424] [<c025c244>] (drm_fb_helper_restore_fbdev_mode_unlocked) from [<c025e0a8>] (drm_fb_helper_set_par+0x1c/0x60) [ 55.752271] [<c025e0a8>] (drm_fb_helper_set_par) from [<c025e174>] (drm_fb_helper_hotplug_event+0x88/0xc4) [ 55.761906] [<c025e174>] (drm_fb_helper_hotplug_event) from [<c02571c4>] (drm_helper_hpd_irq_event+0xc8/0x134) [ 55.771898] [<c02571c4>] (drm_helper_hpd_irq_event) from [<c028e27c>] (vidi_store_connection+0x90/0xc8) [ 55.781268] [<c028e27c>] (vidi_store_connection) from [<c0125f80>] (kernfs_fop_write+0xc0/0x180) [ 55.790045] [<c0125f80>] (kernfs_fop_write) from [<c00cdf60>] (vfs_write+0xa0/0x1ac) [ 55.797757] [<c00cdf60>] (vfs_write) from [<c00ce468>] (SyS_write+0x44/0x9c) [ 55.804790] [<c00ce468>] (SyS_write) from [<c000e6a0>] (ret_fast_syscall+0x0/0x30) [ 55.812328] ---[ end trace 3c0fe4386702d4dd ]--- This issue occurs when modeset to vidi is tried in case that drm_vblank_init is called prior to crtc creation of vidi driver. In this case, crtc number of vidi is invalid so any requests with the crtc number will fail. This patch guarantees drm_vblank_init to be called after all kms drivers are ready by using component framework. Signed-off-by: -
Inki Dae authored
This patch resolves the issue that component object isn't removed correctly. A given component object couldn't be placed to head of drm_component_list so all component objects added to the drm_component_list should be checked to remove the given component object. Signed-off-by:
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- 24 Nov, 2014 26 commits
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Julia Lawall authored
Propagate the returned error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Inki Dae authored
Use 'for' statemant instead of hard-coded 'if' statement. Signed-off-by: -
Gustavo Padovan authored
Registering the Exynos DRM subdevices platform drivers in the probe function is causing an infinite loop. Fix this by moving it to the exynos_drm_init() function to register the drivers on module init. Registering drivers in the probe functions causes a deadlock in the parent device lock. See Grant Likely explanation on the topic: "I think the problem is that exynos_drm_init() is registering a normal (non-OF) platform device, so the parent will be /sys/devices/platform. It immediately gets bound against exynos_drm_platform_driver which calls the exynos drm_platform_probe() hook. The driver core obtains device_lock() on the device *and on the device parent*. Inside the probe hook, additional platform_drivers get registered. Each time one does, it tries to bind against every platform device in the system, which includes the ones created by OF. When it attempts to bind, it obtains device_lock() on the device *and on the device parent*. Before the change to move of-generated platform devices into /sys/devices/platform, the devices had different parents. Now both devices have /sys/devices/platform as the parent, so yes they are going to deadlock. The real problem is registering drivers from within a probe hook. That is completely wrong for the above deadlock reason. __driver_attach() will deadlock. Those registrations must be pulled out of .probe(). Registering devices in .probe() is okay because __device_attach() doesn't try to obtain device_lock() on the parent." INFO: task swapper/0:1 blocked for more than 120 seconds. Not tainted 3.18.0-rc3-next-20141105 #794 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. swapper/0 D c052534c 0 1 0 0x00000000 [<c052534c>] (__schedule) from [<c0525b34>] (schedule_preempt_disabled+0x14/0x20) [<c0525b34>] (schedule_preempt_disabled) from [<c0526d44>] (mutex_lock_nested+0x1c4/0x464 [<c0526d44>] (mutex_lock_nested) from [<c02be908>] (__driver_attach+0x48/0x98) [<c02be908>] (__driver_attach) from [<c02bcc00>] (bus_for_each_dev+0x54/0x88) [<c02bcc00>] (bus_for_each_dev) from [<c02bdce0>] (bus_add_driver+0xe4/0x200) [<c02bdce0>] (bus_add_driver) from [<c02bef94>] (driver_register+0x78/0xf4) [<c02bef94>] (driver_register) from [<c029e99c>] (exynos_drm_platform_probe+0x34/0x234) [<c029e99c>] (exynos_drm_platform_probe) from [<c02bfcf0>] (platform_drv_probe+0x48/0xa4) [<c02bfcf0>] (platform_drv_probe) from [<c02be680>] (driver_probe_device+0x13c/0x37c) [<c02be680>] (driver_probe_device) from [<c02be954>] (__driver_attach+0x94/0x98) [<c02be954>] (__driver_attach) from [<c02bcc00>] (bus_for_each_dev+0x54/0x88) [<c02bcc00>] (bus_for_each_dev) from [<c02bdce0>] (bus_add_driver+0xe4/0x200) [<c02bdce0>] (bus_add_driver) from [<c02bef94>] (driver_register+0x78/0xf4) [<c02bef94>] (driver_register) from [<c029e938>] (exynos_drm_init+0x70/0xa0) [<c029e938>] (exynos_drm_init) from [<c00089b0>] (do_one_initcall+0xac/0x1f0) [<c00089b0>] (do_one_initcall) from [<c074bd90>] (kernel_init_freeable+0x10c/0x1d8) [<c074bd90>] (kernel_init_freeable) from [<c051eabc>] (kernel_init+0x8/0xec) [<c051eabc>] (kernel_init) from [<c000f268>] (ret_from_fork+0x14/0x2c) 3 locks held by swapper/0/1: #0: (&dev->mutex){......}, at: [<c02be908>] __driver_attach+0x48/0x98 #1: (&dev->mutex){......}, at: [<c02be918>] __driver_attach+0x58/0x98 #2: (&dev->mutex){......}, at: [<c02be908>] __driver_attach+0x48/0x98 Changelog v2: - call platform_driver_register after all kms and non kms drivers are registered - rebased it to exynos-drm-next Signed-off-by:Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by:
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Gustavo Padovan authored
This reverts commit cea24824ab432f8acabb254d6805e9aa756de6af. Moving subdriver probe to exynos_drm_platform_probe() was making exynos_drm_device_subdrv_probe() fail because the platform data wasn't set yet. It only gets set in exynos_drm_load. We need to find a smarter way to fix this issue. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to display->ctx pointer by container_of construct. The field is removed as well as dpi was the last user of it. Signed-off-by:
Andrzej Hajda <a.hajda@samsung.com> Signed-off-by:
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Andrzej Hajda authored
exynos_drm_display is used by internal Exynos DRM framework for representing encoder:connector pair. As it should be mapped 1:1 to dpi private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple dpi devices in the system. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to display->ctx pointer by container_of construct. It will allow to remove ctx field in the future. Signed-off-by:
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Andrzej Hajda authored
exynos_drm_display is used by internal Exynos DRM framework for representing encoder:connector pair. As it should be mapped 1:1 to dp private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple dp devices in the system. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to display->ctx pointer by container_of construct. It will allow to remove ctx field in the future. Signed-off-by:
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Andrzej Hajda authored
exynos_drm_display is used by internal Exynos DRM framework for representing encoder:connector pair. As it should be mapped 1:1 to vidi private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple vidi devices in the system. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to display->ctx pointer by container_of construct. It will allow to remove ctx field in the future. Signed-off-by:
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Andrzej Hajda authored
exynos_drm_display is used by internal Exynos DRM framework for representing encoder:connector pair. As it should be mapped 1:1 to hdmi private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple hdmi devices in the system. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to manager->ctx pointer by container_of construct. As fimd was the last user of ctx the patch removes this field as well. Signed-off-by:
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Andrzej Hajda authored
exynos_drm_manager is used by internal Exynos DRM framework for representing crtc. As it should be mapped 1:1 to fimd private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple FIMD devices in the system. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to manager->ctx pointer by container_of construct. It will allow to remove ctx field in the future. Signed-off-by:
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Andrzej Hajda authored
exynos_drm_manager is used by internal Exynos DRM framework for representing crtc. As it should be mapped 1:1 to vidi private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple mixer devices in the system. Signed-off-by:
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Andrzej Hajda authored
The patch replaces accesses to manager->ctx pointer by container_of construct. It will allow to remove ctx field in the future. Signed-off-by:
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Andrzej Hajda authored
exynos_drm_manager is used by internal Exynos DRM framework for representing crtc. As it should be mapped 1:1 to fimd private context it seems more reasonable to embed it directly in that context. As a result further code simplification will be possible. Moreover it will be possible to handle multiple mixer devices in the system. Signed-off-by:
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YoungJun Cho authored
The exynos_dsi_te_irq_handler() works only dsi(DPMS) is on. So it is enough to enable and disable TE GPIO IRQ in exynos_dsi_enable(disable)_irq() like DSI IRQ. Signed-off-by:
YoungJun Cho <yj44.cho@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com>a Acked-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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YoungJun Cho authored
The drm_helper_hpd_irq_event() does dpms control and the panel is initialized and displayed on by it. So the exynos_dsi_te_irq_handler() should be registered beforehand. Signed-off-by:
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Joonyoung Shim authored
The drm_handle_vblank should be called whenever be vsync, te interrupt means vsync on i80 interface. Signed-off-by:
Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by:
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YoungJun Cho authored
There is a case like set config which requires triggering but vblank is not enabled yet. So triggering unset routine is required to exit from triggering mode. Signed-off-by:
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YoungJun Cho authored
For the I80 interface, the video interrupt pending register(VIDINTCON1) should be handled in fimd_irq_handler() and the video interrupt control register(VIDINTCON0) should be handled in fimd_enable_vblank() and fimd_disable_vblank() like RGB interface. So this patch moves each set / unset routines into proper positions. Signed-off-by:
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YoungJun Cho authored
This function is valid only the SoC has SHADOWCON register and it should be used together with fimd_enable_video_output() to match the ENWIN_F bit in WINCON# and C#_EN_F bit in SHADOWCON. Signed-off-by:
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YoungJun Cho authored
This bit is used for video output and logic signal control. So it is better for readability. Signed-off-by:
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YoungJun Cho authored
The C#_EN_F in SHADOWCON register is updated per frame. So it should be protected by fimd_shadow_protect_win(). Signed-off-by:
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