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* | msm: mdss: Fix possible null dereferenceVeera Sundaram Sankaran2016-03-23
| | | | | | | | | | | | | | Fixed null dereferencing in mdp Change-Id: I61e49554ea410834336a7f5a7e94db0cc409f594 Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
* | msm: mdss: support no panel connected scenario for DSIAnusha Koduru2016-03-23
| | | | | | | | | | | | | | | | Add proper bail out and also avoid any commands involving ACK from the panel. Change-Id: Id321e1564f32a8b1565d2e735e8af54fb502751e Signed-off-by: Anusha Koduru <kanusha@codeaurora.org>
* | msm: mdss: unmap rotator src buffer after mapping the next bufferKalyan Thota2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | In secure case, when same buffer is queued in multiple composition cycles we should map it before unmapping it so that TZ will not clear the buffer content. In the former case ref count can be zero which can lead to TZ clearing the buffer Change-Id: I5aea01f8d2c4330b93319434ced55f816558619d Signed-off-by: Kalyan Thota <kalyant@codeaurora.org>
* | msm: mdss: Don't allow any ioctls during dynamic switchSandeep Panda2016-03-23
| | | | | | | | | | | | | | | | | | Don't allow any ioctls like DISPLAY_COMMIT, OVERLAY_SET, OVERLAY_PLAY when dsi dynamic switch is underway, to avoid any stability issues. Change-Id: I66e68e399c1fb31e7b9dcd3a4840d4fe59a58914 Signed-off-by: Sandeep Panda <spanda@codeaurora.org>
* | msm: mdss: Override partial update PP block using ioctlKrishna Chaitanya Parimi2016-03-23
| | | | | | | | | | | | | | | | | | | | | | Partial update when enabled blocks all PP ioctls. There is currently no subtle way to enable PP. Providing an ioctl to override the blockage of PP ioctls. This would allow PP to override the blockage caused due to the default enablement of partial update. Change-Id: Ia120caa179bfa0414041bacd80328540f24dd6c8 Signed-off-by: Krishna Chaitanya Parimi <cparimi@codeaurora.org>
* | msm: mdss: add support to parse dynamic refresh rate rangeJeevan Shriram2016-03-23
| | | | | | | | | | | | | | | | | | | | DSI panel dynamic refresh rate range varies from panel to panel. Add support to parse dynamic refresh range from the panel device tree. If the range is not specified, use the default range from 30 to max panel supported rate. Change-Id: Iac5adebe187bdc7abd4e82464de81305862df794 Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
* | msm: mdss: wb: enable wb when hdmi is primaryAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | | | enable WB as secondary display when HDMI is configured as primary panel. Change-Id: Iffb635bdf4574d66e42c4320b122fde52ad1bf16 Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: align frame buffer size to PAGE_SIZEJeevan Shriram2016-03-23
| | | | | | | | | | | | | | | | | | | | | | When updating userspace with the shared memory length, the size of each buffer needs to be 4k aligned for performance. This is also required to avoid mmap failures in the case of recovery and other usecases where the requested size is 4k aligned. Change-Id: I6e97f9c76ea1aff07572c500f30f888b6e12f9b4 Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
* | msm: mdss: hdmi: get vic from cmdline in case hdmi is primaryAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | | | | | In case of HDMI is primary, get the default VIC (Video Identification Code) from the command line to configure the display pipeline with this resolution data for continuous splash screen. Change-Id: I96325045f4af0712d2f68fadf190edcf6d815841 Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: enable DSI timing register double buffering for 8916/8939Padmanabhan Komanduru2016-03-23
| | | | | | | | | | | | | | | | | | On 8916/8939, the DSI timing registers support double buffering. Enable the double buffering support and flush DSI registers once the timing parameters are configured. Change-Id: I61c0a84f0fc015541fc8e0197e1b9997ebb123aa Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
* | msm: mdss: allow unused SMP for targets with high number of SMPsUjwal Patel2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently MDP driver rejects reusing of a pipe if this reuse results in wastage of SMPs. i.e. VIG0 pipe reused from YUV layer to RGB layer. In this case, since RGB layer needs only plane0, plane1 SMPs are unused. This kind of wasting leads to un-necessary GPU fall-backs for composition when number of SMPs and number of pipes are less. For this reason driver used to prohibit such configuration. But in high tier chip-sets, there are enough number of SMPs and pipes are available such that these transient wastage of SMPs can be absorbed without much impact. Change-Id: Ia7baec801add81e5c97bded920ae5bdca5083e0b Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
* | msm: mdss: use appropriate api to get length of scatterlistJeevan Shriram2016-03-23
| | | | | | | | | | | | | | | | Moving away from using sg_dma_len() api to be inline with ion driver, use sg->length for scatterlist length. Change-Id: I3a33340dc1bda5b24a406c29601aff4d5b2c5748 Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
* | msm: mdss: hdmi: add sysfs node for audio video latencyKen Zhang2016-03-23
| | | | | | | | | | | | | | | | | | Add edid_audio_latency and edid_video_latency sysfs nodes to report the info extracted from edid. AV sync can use these info to compensate the difference. Change-Id: I2b1a3f6c0e2d892be8d41651ea898ce47c9d820b Signed-off-by: Ken Zhang <kenz@codeaurora.org>
* | msm: mdss: fix bug for validating pixel extension calculationsJeevan Shriram2016-03-23
| | | | | | | | | | | | | | | | | | While validating pixel extension calculations from user space, validate the over fetch pixels with image dimentions in both horizontal and vertical directions. Change-Id: I8e39e89d9ace8e26237b3b23ca375456abd804a1 Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
* | msm: mdss: add support to validate pixel extension calculationsUjwal Patel2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | If a layer needs a scaling than its pixel extension values are calculated in the user-space library and passed down to driver. Currently driver blindly programs these settings to HW without validating for correctness. This leads to HW hangs and stability issues. Add a proper sanitization checks for pixel extension and report error back to user-space if any. Change-Id: I086cf0b23fbccd37a23bb509f067bffdf396c247 Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org> Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
* | msm: display: hdmi: make CEC work properly after HDMI off and onKen Zhang2016-03-23
| | | | | | | | | | | | | | | | | | | | | | When HDMI is turned off, sending CEC will crash the system and the logical address will be lost. Do not send CEC message if CEC is not configured. Initialize CEC logical address when config CEC during turning on HDMI. Return an error when sending message fails so that HAL can know the result. Change-Id: I2f5ced4d9be97361665138400bde435916c7373e Signed-off-by: Ken Zhang <kenz@codeaurora.org>
* | msm: mdss: hdmi: set av mute on power offAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | | | For smoother power off and resolution change, set av mute during power off. Change-Id: I96e2a9647f42c033acbab72e87593ef6fdedfbc0 Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: hdmi: do not timeout on hdcp re-authenticationAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | | | | | Keep re-authenticating until successful as sinks may choose not to issue HPD while switching HDMI ports or powering on/off which usually trigger HDCP on/off. Change-Id: Ib4b13592df8753df1693c6279f04fc963ba9974f Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: hdmi: support for mutliple adbAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | | | Some sinks may have more than one audio data block (adb). Add support to parse more than one adb. Change-Id: Icf324c2e8b6fbd3817bcdb54a62eb0af17996fa4 Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: hdmi: proper audio channel numbersAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | add proper audio channels numbers for odd number of channels Change-Id: Ic07c213102efe61505b16e4b692a2d1d32eb72c3 Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: add LP/HS mode DCS CMD support to MDP5 targetsShuo Yan2016-03-23
| | | | | | | | | | | | | | | | | | LP/HS mode configuration for DCS Commands in currently not supported on MDP5 targets. Add the required support to meet all panel requirements. Change-Id: Ib31ddc02f151033a59d6297c8f1a4f8897378947 Signed-off-by: Shuo Yan <shuoy@codeaurora.org>
* | mdss: mdp: Add mdss version macro for 8992 targetJeykumar Sankaran2016-03-23
| | | | | | | | | | | | | | | | Add mdss version macro for 8992 target and initialize maximum blending stages supported for the target. Change-Id: Ic741fb725907498791c1d17581561e3632a40cec Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
* | msm: mdss: Switch order of histogram completions when disabling histBenet Clark2016-03-23
| | | | | | | | | | | | | | | | | | | | There are two completion structures associated with the histogram. When hist is being disabled, we complete_all() these structures to unblock the waiting threads, however the completes were not done in the same order as the waits. Change-Id: I0dc39d56db9b4f141b619ae41f2c896d2e84c882 Signed-off-by: Benet Clark <benetc@codeaurora.org>
* | msm: mdss: Move iommu attach after overlay start in pan displayJayant Shekhar2016-03-23
| | | | | | | | | | | | | | | | | | | | IOMMU page faults can happen if iommu is attached in pan display if continuous splash is enabled as splash fetches from physical memory. Splash cleanup is performed in overlay start and hence move iommu attach after splash cleanup is done. Change-Id: I703c925f964527f33108a3a09ee1ffdc0a3003cd Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
* | msm: mdss: fix programmable fetch calculationIngrid Gallardo2016-03-23
| | | | | | | | | | | | | | | | | | Fix to consider all the vertical blanking lines for the prefill bandwidth calculation and keep skipping one pixel for the fetch start configuration. Change-Id: I3407f8ef4c6427a307220bee10f9cac072582069 Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>
* | msm: mdss: support transition from suspend to doze modeAravind Venkateswaran2016-03-23
| | | | | | | | | | | | | | | | | | | | If a transition from full suspend to doze mode is requested, first unblank the panel and then enter the doze mode. This is necessary to ensure that all necessary panel supplies are turned on and the panel is brought out of reset first. Change-Id: I5757f01ec9843a332fd2d1034c068ff993f466bd Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
* | msm: mdss_fb: Do not issue runtime suspend/resume for HDMI primaryAjay Singh Parmar2016-03-23
| | | | | | | | | | | | | | | | | | | | When HDMI is primary, do not issue runtime suspend and resume events to HDMI interface. Runtime suspend/resume may get triggered with cable connect/disconnect when HDMI is primary which will result in unnecessary power on/off of HPD module. Change-Id: I6c0c9eb85832717be538b3fbf7583b1e4a5c10d5 Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
* | msm: mdss: Add bounds check in mdss_compat_overlay_ioctlRaghavendra Ambadas2016-03-23
| | | | | | | | | | | | | | | | | | | | | | A bounds check has to be done on ovlist32->num_overlays variable so as to prevent memory allocation of arbitrary size and avoid subsequent undetermined behaviour. Change-Id: Ic70726f1825040e793ef256195d236d77b392791 Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org> Signed-off-by: Raghavendra Ambadas <rambad@codeaurora.org> Signed-off-by: Krishna Chaitanya Parimi <cparimi@codeaurora.org>
* | msm: mdss: Check if PP has split mode enabled for PAv2 featuresBenet Clark2016-03-23
| | | | | | | | | | | | | | | | | | The option for split mode in PP only checks the enable flag of the feature in order to enable the same in the DSPP opmode. The opmode bits for PAv2 features need to be disabled if PA bit is disabled. Change-Id: I72019d0d03703e0698cf8d4ccd8b8f9c17889653 Signed-off-by: Benet Clark <benetc@codeaurora.org>
* | mdss: mdp: switch fget_light to fdgetTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | | | fget_light was deprecated, made the switch to fdget. Change-Id: I52a032f26002300a1bf58573ff40fcc84c35d74e Signed-off-by: Terence Hampson <thampson@codeaurora.org> [cip@codeaurora.org: Replace f_dentry with f_path.dentry] Signed-off-by: Clarence Ip <cip@codeaurora.org>
* | mdss: mdp: Intermediate step in transitioning to new iommu apisTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | | | | | IOMMU APIs are changing in 3.14 kernel. ION IOMMU calls, such as ion_unmap_iommu, are being deprecated. While transition to new APIs calling msm_map_dma_buf is an intermediate stage when transitioning to new APIs. Change-Id: I7fb11575d3924073fa9917be32ac2f92634f2e13 Signed-off-by: Terence Hampson <thampson@codeaurora.org>
* | msm: mdss: fix trace compilation warningClarence Ip2016-03-23
| | | | | | | | | | | | | | | | | | | | | | In order to prevent trace compilation warning, need to explicitly setup compile include directive to search current source folder for header files. Change-Id: Ic17f841c88d911498d914f5339c99d2cb1ae3d1a Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org> [cip@codeaurora.org: Resolved merge conflict] Signed-off-by: Clarence Ip <cip@codeaurora.org>
* | mdss: mdp: sysfs_dirent changed to kernfs_node in 3.14 kernelTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | | | Changing all instances of sysfs_dirent -> kernfs_node. Additionally parameters passed into sysfs_get_dirent changed which is corrected in this patch. Change-Id: I06ce0b6af0d88248fb8019a68fd637bd6ce5b12e Signed-off-by: Terence Hampson <thampson@codeaurora.org>
* | mdss: mdp: usleep no longer in 3.14 kernelTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | | | Inline function usleep translating to usleep_range no longer provided in 3.14 kernel. Moving all usleep in display code to use usleep_range. Change-Id: Ie2a465107f83beaedb82380ca8d57c1d9190ec7f Signed-off-by: Terence Hampson <thampson@codeaurora.org>
* | mdss: mdp: Correct msm-bus.h includeTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | | | In porting Id726a65b5641b57c0edd3ba33f2e5b3f68aff643 misspelt header file that was change. This patch corrects that mistake. Change-Id: I6755b102742e663f272b10f3b9804493e81ac28f Signed-off-by: Terence Hampson <thampson@codeaurora.org>
* | mdss: mdp: kgsl_drm is removed for 3.14 kernelTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | Removing all calls to kgsl_drm, as it is no longer supported in 3.14 kernel. Change-Id: I835a946d6b032f47121e19b6ddb8629e672088ea Signed-off-by: Terence Hampson <thampson@codeaurora.org>
* | mdss: mdp: INIT_COMPLETION depricated to reinit_completionTerence Hampson2016-03-23
| | | | | | | | | | | | | | | | INIT_COMPLETION is removed from 3.14 kernel. Replacing with reinit_completion. Change-Id: I64c43e313ff4e07dc7900bdce155f8c55e5ed420 Signed-off-by: Terence Hampson <thampson@codeaurora.org>
* | msm: mdss: do not call dsi soft reset for idle power collapseAravind Venkateswaran2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | The DSI branch blocks needs to be on in order to issue a DSI software reset. Commit e8c272ba5c3f23e6cece61bde7834cab7922a1d4 introduced the change which moved the DSI software reset prior to enabling the DSI branch clocks in order to support the idle power collapse feature. This is not correct since a soft reset is not required at all when resuming from an idle power collapsed state. Fix this by moving the software reset to the DSI on sequence. Change-Id: I663a44d04650f686ba98ea0b1fb7ab2ea29a3bcc Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
* | msm: mdss: use helper functions to check for panel power stateAravind Venkateswaran2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whenever the display always-on feature is enabled, it is possible that the display pipeline can be in an intermediate state between being fully interactive to fully turned off. In the current implementation, a number of state transition decisions are made based on whether the display pipeline is on or not. Instead of explicitly checking for the panel power state, define generic helper functions which classify the panel power state into three different stages - interactive, low-power and off. Replace any existing check for the panel power state with these newly defined helper functions. Change-Id: I4d6dd883ea6aca8abd57fa048a79e0c88da09a95 Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
* | msm: mdss: add support for display always on modeAravind Venkateswaran2016-03-23
| | | | | | | | | | | | | | | | | | Add a new panel power state to represent a panel low power mode. Add a new sysfs node to control when to configure the panel into this new mode. Change-Id: I7df8bf63470bec893c6b7481678f00ce76b6875c Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
* | msm: mdss: add support for different panel power statesAravind Venkateswaran2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently a panel either be in a powered on state or a powered off state. However, it is possible for panels to be configured in an intermediate low-power state where the panel is always kept on. In order to support such use-cases, it is necessary to add the concept of panel power states in MDSS so that each software layer can independently maintain it's state and manage transitions between them. This change just refactors the driver with only two existing power states - panel on and panel off. Change-Id: I49d1fda506761546c5e22d9106c5177e75053a81 Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
* | msm: display: release kickoff before fence waitingKen Zhang2016-03-23
| | | | | | | | | | | | | | | | | | | | After configuration is done, save the acquired fences, release the kickoff and ov_lock, then wait for the cached fences. This way the next prepare will not be blocked by waiting for acquired fences. Change-Id: Id6f5b30e0d20cd59bd0aebf71af7cb47ecb1cf5b Signed-off-by: Ken Zhang <kenz@codeaurora.org>
* | msm: mdss: fix mdp clock calculations for rotatorUjwal Patel2016-03-23
| | | | | | | | | | | | | | | | | | | | MDP clock requirement for rotator depends solely on source dimensions, rot_clk = (src_w * src_h * fps). Fix current calculations where MDP clock rate is incorrectly calculated as rot_clk = (dst_h * dst_h *fps). New calculations are valid even when down-scale is done along with rotation. Change-Id: I30d98b7a62beeb3a559a9c5f26de43c014fd25fd Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
* | msm: mdss: Add support for different voting on RT/NRT AXI PortsVishnuvardhan Prodduturi2016-03-23
| | | | | | | | | | | | | | | | | | | | | | In 8939, MDSS has two AXI Ports one for real time client and the other for non-real time clients. Bandwidth required on each of the port changes according to the use case which necessitates the voting to separate on two different ports. Separate vote is calculated for RT clients and NRT clients which will be voted on respective ports. Change-Id: If3d3d670c19a03d5d9659db6e3630a2958744f07 Signed-off-by: Vishnuvardhan Prodduturi <vproddut@codeaurora.org>
* | msm: mdss: add ESD status support for NT35596 panelPadmanabhan Komanduru2016-03-23
| | | | | | | | | | | | | | | | | | | | | | In ESD thread implementation using DSI status read method, currently we check the read value of only one register from the panel. For NT35596 panel, the expected read back value for the health status register is 8 bytes. Add support for ESD status for this NT35596 panel accordingly. Change-Id: Icc2ba4d662facb79432a07f72064db57d2e5dd8a Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
* | msm: mdss: release pipes associated with respective processDhaval Patel2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that fb_open and fb_release APIs are called from different processes for same file node. fb_release finds correct process through file descriptor node in such scenario and releases respective ref count. However, overlay_release API tries to release the pipes associated with current process id. This check fails to find correct resources and does not release any pipe. This change calls overlay release API with respective process id to release all pipes associated with it. Change-Id: Icc176032401483e05f347d3c08a4b344f61686f2 Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
* | mdss: hdmi: Fix null dereferencesCharles Bin2016-03-23
| | | | | | | | | | | | | | Add null check to fix potential null dereferences in driver. Change-Id: I913d4a8e5dc3e61e534243ab77d788ad64815b28 Signed-off-by: Charles Bin <cbin@codeaurora.org>
* | msm: mdss: refactor MDSS idle power collapse logicAravind Venkateswaran2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MDSS GDSC can be turned off, or power-collased for command mode panels in static screen use-cases. In the current implementation, the power collapse is triggered by a worker thread in the interface driver whenever it enters the idle state. However, MDP driver already registers pm_runtime callbacks for idle and suspend notifications and also maintains a count of active overlay sessions. It is much simpler and cleaner to trigger idle-power collapse based on that. This also avoids unnecessary synchronization issues pertaining to the power collapse worker thread. Change-Id: I198e6d7685e5ef6eed7cd06a77fa76435940b805 Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
* | msm: mdss: Avoid dsi v2 compilation for ferrumShivaraj Shetty2016-03-23
| | | | | | | | | | | | | | | | Ferrum uses DSI 6G, and there is no need to compile dsi v2 driver for this target. Update Makefile to take care of this. Change-Id: Ifbbb320fd908bbdca5825cac7164b68b18360316 Signed-off-by: Shivaraj Shetty <shivaraj@codeaurora.org>
* | msm: mdss: set the default mdp clcok rate to max supported by targetVineet Bajaj2016-03-23
| | | | | | | | | | | | | | | | | | | | Set the default mdp clk rate to be used in mdp_probe at max supported. For certain targets such as 8939 which support destination split and use 2k panel the minimum clock rate required will be 320MHz. This will apply only until first update comes from the userspace. Change-Id: Ia4bf56401eaec86ffd8338b5dd0c8b730ad4b1fc Signed-off-by: Vineet Bajaj <vbajaj@codeaurora.org>
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