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| | * | drm: add register and unregister functions for connectorsThomas Wood2014-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce generic functions to register and unregister connectors. This provides a common place to add and remove associated user space interfaces. Signed-off-by: Thomas Wood <thomas.wood@intel.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm: Don't export internal module variablesDaniel Vetter2014-06-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drivers really have no business touching these. Noticed because exynose _did_ touch the vblank off delay, which could potentially affect other drivers. drm_debug is an exception since it's used in macros and inline functions. Note that this reduces the timeout on exynos from 50s to 5s. Apparently this was done to paper over a vblank get/put race in exynos, but really should be fixed properly somewhere else. Spotted by David. v2: Drop bonghits changes. Note to self: Don't submit patches before first coffee. Cc: Inki Dae <inki.dae@samsung.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | | | dma-buf: use reservation objectsMaarten Lankhorst2014-07-08
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows reservation objects to be used in dma-buf. it's required for implementing polling support on the fences that belong to a dma-buf. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com> #drivers/media/v4l2-core/ Acked-by: Thomas Hellstrom <thellstrom@vmware.com> #drivers/gpu/drm/ttm Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> #drivers/gpu/drm/armada/ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | drm/exynos: enable vsync interrupt while waiting for vblankRahul Sharma2014-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mixer_wait_for_vblank function expects that the upcoming vsync interrupt handler routine will clear the wait_vsync_event atomic variable. For this to happen, interrupts should be enabled and disabled properly. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: soft reset mixer before reconfigure after power-onRahul Sharma2014-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mixer soft reset is a recommended step before reconfiguring the mixer after power on. Mixer looses the previous state of DMAs if soft reset. This is the recommendation from the hardware team. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: allow multiple layer updates per vsync for mixerRahul Sharma2014-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allowing only one layer update per vsync can cause issues while there are update available for both layers. There is a good amount of possibility to loose updates if we allow single update per vsync. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: stop mixer before gating clocks during poweroffRahul Sharma2014-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mixer should be power gated only after it is gracefully stopped. The recommended sequence is to Stop the mixer and wait till it enters to IDLE state before gating the clocks and power to the mixer. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: set power state variable after enabling clocks and powerRahul Sharma2014-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Power state variable holds the state of the mixer device. Power on and power off functions are toggling these variable at wrong place. State variable should be changed to true only after Runtime PM and clocks are enabled. Else it may result to a situation where mixer registers are accessed with device power enabled. Similar logic for poweroff sequence. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: disable unused windows on applyAndrzej Hajda2014-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | The patch disables non-enabled HW windows on applying configuration, it will allow to clear windows enabled by bootloader. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: Fix de-registration orderingSachin Kamat2014-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'exynos_drm_pdev' was not getting unregistered if platform_driver_register() failed. Fix the ordering to allow this. This also fixes the below warning by moving the #endif macro. While at it also fix the ordering in the exit function so that de-registration happens in opposite order of registration. drivers/gpu/drm/exynos/exynos_drm_drv.c:768:1: warning: label 'err_unregister_pd' defined but not used [-Wunused-label] Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: change zero to NULL for sparseDan Carpenter2014-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We recently changed this function to return a pointer instead of an int so we need to change this zero to a NULL or Sparse complains: drivers/gpu/drm/exynos/exynos_drm_drv.h:346:47: warning: Using plain integer as NULL pointer Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: dpi: Fix NULL pointer dereference with legacy bindingsTomasz Figa2014-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there is no panel node in DT and instead display timings are provided directly in FIMD node, there is no panel object created and ctx->panel becomes NULL. However during Exynos DRM initialization drm_helper_hpd_irq_event() is called, which in turns calls exynos_dpi_detect(), which dereferences ctx->panel without a check, causing a NULL pointer derefrence. This patch fixes the issue by adding necessary NULL pointer check. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | | drm/exynos: hdmi: fix power order issueInki Dae2014-06-23
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | This patch resolves page fault issue of Mixer when disabled. The SFRs of VP and Mixer are updated by Vertical Sync of Timing generator which is a part of HDMI so the sequence to disable TV Subsystem should be as following: VP -> Mixer -> HDMI For this, this patch disables Mixer and VP (if used) prior to disabling HDMI. Signed-off-by: Inki Dae <inki.dae@samsung.com>
* | Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2014-06-12
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm updates from Dave Airlie: "This is the main drm merge window pull request, changes all over the place, mostly normal levels of churn. Highlights: Core drm: More cleanups, fix race on connector/encoder naming, docs updates, object locking rework in prep for atomic modeset i915: mipi DSI support, valleyview power fixes, cursor size fixes, execlist refactoring, vblank improvements, userptr support, OOM handling improvements radeon: GPUVM tuning and large page size support, gart fixes, deep color HDMI support, HDMI audio cleanups nouveau: - displayport rework should fix lots of issues - initial gk20a support - gk110b support - gk208 fixes exynos: probe order fixes, HDMI changes, IPP consolidation msm: debugfs updates, misc fixes ast: ast2400 support, sync with UMS driver tegra: cleanups, hdmi + hw cursor for Tegra 124. panel: fixes existing panels add some new ones. ipuv3: moved from staging to drivers/gpu" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (761 commits) drm/nouveau/disp/dp: fix tmds passthrough on dp connector drm/nouveau/dp: probe dpcd to determine connectedness drm/nv50-: trigger update after all connectors disabled drm/nv50-: prepare for attaching a SOR to multiple heads drm/gf119-/disp: fix debug output on update failure drm/nouveau/disp/dp: make use of postcursor when its available drm/g94-/disp/dp: take max pullup value across all lanes drm/nouveau/bios/dp: parse lane postcursor data drm/nouveau/dp: fix support for dpms drm/nouveau: register a drm_dp_aux channel for each dp connector drm/g94-/disp: add method to power-off dp lanes drm/nouveau/disp/dp: maintain link in response to hpd signal drm/g94-/disp: bash and wait for something after changing lane power regs drm/nouveau/disp/dp: split link config/power into two steps drm/nv50/disp: train PIOR-attached DP from second supervisor drm/nouveau/disp/dp: make use of existing output data for link training drm/gf119/disp: start removing direct vbios parsing from supervisor drm/nv50/disp: start removing direct vbios parsing from supervisor drm/nouveau/disp/dp: maintain receiver caps in response to hpd signal drm/nouveau/disp/dp: create subclass for dp outputs ...
| * drm: Remove DRM_ARRAY_SIZE() for ARRAY_SIZE()Damien Lespiau2014-06-09
| | | | | | | | | | | | | | | | | | | | | | | | I cannot see a need to provide a DRM_ version of ARRAY_SIZE(), only used in a few places. I suspect its usage has been spread by copy & paste rather than anything else. Let's just remove it for plain ARRAY_SIZE(). Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * drm: Remove spurious ';'Damien Lespiau2014-06-09
| | | | | | | | | | | | | | | | One small step after another, the never-ending crusade towards better code continues. Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * drm: add drm_fb_helper_restore_fbdev_mode_unlocked()Rob Clark2014-06-04
| | | | | | | | | | | | | | | | | | All drm_fb_helper_restore_fbdev_mode() call sites, save one, do the same locking. Simplify this into drm_fb_helper_restore_fbdev_mode_unlocked(). Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * drm/exynos: consider deferred probe caseInki Dae2014-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes sure that exynos drm framework handles deferred probe case correctly. Sub drivers could be probed before resources, clock, regulator, phy or panel, are ready for them so we should make sure that exynos drm core waits until all resources are ready and sub drivers are probed correctly. Chagelog v2: - Make sure that exynos drm core tries to bind sub drivers only in case that they have a pair: crtc and encoder/connector components should be a pair. - Remove unnecessary patch: drm/exynos: mipi-dsi: consider panel driver-deferred probe - Return error type correctly. Signed-off-by: Inki Dae <inki.dae@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
| * drm/exynos: remove unnecessary exynos_hdmi.h fileJingoo Han2014-06-02
| | | | | | | | | | | | | | | | | | | | The exynos_hdmi.h has been used for the dedicated i2c drivers that were already removed. Thus, the unnecessary exynos_hdmi.h should be removed. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/fimd: allow multiplatform configurationAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | | | The patch removes dependency on !ARCH_MULTIPLATFORM. This dependency seems to be not longer valid. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: add hdmiphy power on/off sequenceShirish S2014-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements the power on/off sequence of HDMI PHY in exynos5420 and exynos5250 as provided by the hardware team. This has been verified for mulitple iterations of S2R. Signed-off-by: Shirish S <s.shirish@samsung.com> Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: remove description of non-existing fieldAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | ipp_id field is removed from exynos_drm_ippdrv struct. The patch removes its description as well. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: update comment for struct drm_ipp_buf_infoYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | | | The attribute gem_objs in struct drm_exynos_ipp_buf_info was changed to handles. So the comment needs to be updated also. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: rearrange c_node->event_lock using routineYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | | | The c_node->event_list should be protected with c_node->event_lock. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: rearrange c_node->mem_lock using routinesYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | | | The c_node->mem_list[] should be protected with c_node->mem_lock. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: add ipp_remove_id()YoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | This patch adds ipp_remove_id() for idr resource free. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: add cmd_lock for cmd_listYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | This patch adds cmd_lock for cmd_list synchronization. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: rename cmd_lock to lockYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | | | The ippdrv->cmd_list requires cmd_lock. So renames cmd_lock to lock for context. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: remove duplicated settingYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | This patch removes duplicated setting. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.cho@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: ipp: remove usless list_empty() functionsYoungJun Cho2014-06-01
| | | | | | | | | | | | | | | | | | | | | | list_for_each_entry() handles empty lists, so there is no need to check whether the list is empty first. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: Use PTR_ERR_OR_ZERO in exynos_dp_core.cSachin Kamat2014-06-01
| | | | | | | | | | | | | | | | PTR_ERR_OR_ZERO simplifies the code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: remove hardware overlays disable from fimd probeRahul Sharma2014-06-01
| | | | | | | | | | | | | | | | | | | | | | System hangs when FIMD registers are accessed to disable hardware overlays. This is because of the clocks which are not enabled before register access. 'Hardware overlay disable' is cleaned from the FIMD probe. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: Fix checkpatch warning in exynos_dp_reg.cSachin Kamat2014-06-01
| | | | | | | | | | | | | | | | | | Silences the following warning: WARNING: space prohibited before semicolon Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: add fimd dependency to fimd related encodersAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | DPI, DSI and DP drivers will not work without FIMD. The patch adds appropriate dependencies in Kconfig. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: remove redundant mutex_unlockAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | The patch fixes unlocking in exynos_drm_component_del. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/fimc: simplify and rename fimc_dst_get_buf_seqAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | | | fimc_dst_get_buf_seq returns number of buffers so the name should be fimc_dst_get_buf_count. Function body has been simplified. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/fimc: replace mutex by spinlockAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | Function fimc_dst_set_buf_seq is called by irq handler so it should not use mutexes. This patch fixes it. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/fimc: replace hw access macros with functionsAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | HW access macros implicitly depended on presence of ctx local variable. This patch replaces them with C functions. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/fimc: simplify irq masking functionAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | | | The name fimc_handle_irq suggests it is irq handler, but the function is for irq mask configuration. The patch renames the function to fimc_mask_irq and removes unused arguments. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/fimc: simplify pre-scaler ratio calculationAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | The patch replaces dedicated function for scaling ratio calculation by fls calls. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/ipp: simplify property list allocationAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | prop_list is always allocated, so instead of allocating it dynamically the pointer can be replaced by the structure itself. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/ipp: correct ipp_id field initializationAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | prop_list.ipp_id field is not initialized properly. The patch fixes it, additionally it removes redundant field from ippdrv. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos/ipp: fix get_property IOCTLAndrzej Hajda2014-06-01
| | | | | | | | | | | | | | | | | | Due to incorrect assignment in EXYNOS_IPP_GET_PROPERTY IOCTL handler this IOCTL did not work at all. The patch fixes it. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: Staticize local symbols in exynos_hdmi.cSachin Kamat2014-06-01
| | | | | | | | | | | | | | These symbols are local to this file. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: Remove duplicate inclusion of i2c.hSachin Kamat2014-06-01
| | | | | | | | | | | | | | i2c.h was included twice. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: Staticize exynos_dpi_of_find_panel_nodeSachin Kamat2014-06-01
| | | | | | | | | | | | | | exynos_dpi_of_find_panel_node is local to this file. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae>
| * drm/exynos: Fix PTN3460 dependencyJean Delvare2014-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following configuration options combination: CONFIG_DRM_EXYNOS_DP=y CONFIG_DRM_PTN3460=m currently leads to the following linker failure: drivers/built-in.o: In function `exynos_drm_attach_lcd_bridge': .../drivers/gpu/drm/exynos/exynos_dp_core.c:1004: undefined reference to `ptn3460_init' This is because ptn3460_init can't be implemented in a module while its caller is built into the kernel. So add the proper dependency in Kconfig so that the above can't happen. I moved DRM_PTN3460 earlier in Kconfig, next to the I2C helper module section, so that the user has a chance to select it before moving to the Exynos-specific section. IMHO the proper way to solve the problem would be to turn ptn3460 into a clean I2C driver, similar to the other I2C helper chip drivers. It's the only way to not sink into impossible-to-guess dependencies. Then ptn3460 could even be moved together with the other I2C helper chip drivers. Signed-off-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: use 4WORD dma burst length for small fbsRahul Sharma2014-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of exynos, setting dma-burst to 16Word causes permanent tearing for very small buffers, e.g. cursor buffer. Burst Mode switching, which is based on overlay size is not recommended as overlay size varies a lot towards the end of the screen. This causes unstable DMA which results into tearing again. Rendering small buffers with lower burst size doesn't cause any noticable performance overhead. 128 pixel width is selected based on mulitple experiments with exynos5 SoCs. Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com> Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: use regmap interface to set hdmiphy control bit in pmuRahul Sharma2014-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Exynos drm hdmi driver used to get dummy hdmiphy clock to control the PMU bit for hdmiphy. This bit needs to be set before setting any resolution to hdmi hardware. This was handled using dummy hdmiphy clock which is removed here. PMU is already defined as system controller for exynos SoCs. Hdmi driver is modified to control the phy enable bit inside PMU using regmap interfaces. Devicetree binding document for hdmi is also updated. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
| * drm/exynos: allocate non-contigous buffers when iommu is enabledRahul Sharma2014-06-01
| | | | | | | | | | | | | | | | | | | | | | | | Allow to allocate non-contigous buffers when iommu is enabled. Currently, it tries to allocates contigous buffer which consistently fail for large buffers and then fall back to non contigous. Apart from being slow, this implementation is also very noisy and fills the screen with alloc fail logs. Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com> Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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