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path: root/drivers/video
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2018-11-29apalis-tk1: lvds: fix dts and allow setting lane4 drive strengthDominik Sliwa
Previously, lvds-drive-strength was located in a wrong node and there was no control of the 5th lane. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-09-27bus_client.c: fix build with gcc8Max Krummenacher
/build/krm/oe-core_master/build/tmp-glibc/work-shared/apalis-tk1/kernel-source/drivers/video/tegra/host/bus_client.c: In function 'nvhost_channelctl': /build/krm/oe-core_master/build/tmp-glibc/work-shared/apalis-tk1/kernel-source/drivers/video/tegra/host/bus_client.c:894:11: error: 'snprintf' output may be truncated before the last format character [-Werror=format-truncation=] "%s_%s", dev_name(&pdata->pdev->dev), name); ^ /build/krm/oe-core_master/build/tmp-glibc/work-shared/apalis-tk1/kernel-source/drivers/video/tegra/host/bus_client.c:893:3: note: 'snprintf' output 2 or more bytes (assuming 33) into a destination of size 32 snprintf(set_name, sizeof(set_name), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "%s_%s", dev_name(&pdata->pdev->dev), name); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-09-27apalis-tk1: lvds: allow setting LVDS drive strength in dtDominik Sliwa
Hardcoded value was used before. This allows setting drive strength values in the devicetree. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-06-21apalis-tk1: fix issues when using eDP display-outDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-06-21Merge tag 'tegra-l4t-r21.7' into toradex_tk1_l4t_r21.7-nextMarcel Ziswiler
Merge NVIDIA's latest Linux for Tegra aka L4T R21.7 Linux kernel changes from git://nv-tegra.nvidia.com/linux-3.10.git commit: e78bb38b883c42edf81766a1d557aed74458e08f Conflicts involved missing 24-bit LVDS support and a single whitespace aka tab difference in drivers/video/tegra/dc/sor.c. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-04-28host1x: prevent speculative load related leakJeetesh Burman
Data can be speculatively loaded from memory and stay in cache even when bound check fails. This can lead to unintended information disclosure via side-channel analysis. To mitigate this problem, insert speculation barrier. bug 2039126 CVE-2017-5753 Change-Id: Ifc618c00cee497e6d84cac01a9b73fcecbe8f260 Signed-off-by: David Gilhooley <dgilhooley@nvidia.com> Signed-off-by: James Huang <jamehuang@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1650036 (cherry picked from commit 164f8684deb5b15a53c60a60c7d9b8e3bf5af5be) Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1682714 Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1698611 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2018-03-28apalis-tk1: handle backlight in the device treeApalis-TK1_LXDE-Image_2.8b2.97-20180331toradex_tk1_l4t_r21.6Dominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28pwm-backlight: Disable backlight on shutdownThierry Reding
When a device is shut down, make sure to disable the backlight. If it stays lit, it gives the impression that the device hasn't turned off. Furthermore keeping the backlight on may consume power, which is not what users expect when they shut down a device. Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 5f33b896246a2d9bdf01352de11d4dab96ba2fc9)
2018-03-28backlight: pwm_bl: Remove error message upon devm_kzalloc() failureFabio Estevam
No need to have a specific OOM message, since there is generic MM out of memory message in place. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> (cherry picked from commit ca7a97add4d4a7b0602b3bd1eff5c89da8636713)
2018-03-28pwm-backlight: Remove unused variableThierry Reding
I forgot to remove this during earlier cleanup patches and only checked various builds for errors, not warnings. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> (cherry picked from commit 73d4e2b82b4bb1571b1a7f97012c0db8a0faef42)
2018-03-28pwm_backlight: avoid short blank screen while doing hibernationHuayi Li
Use SIMPLE_DEV_PM_OPS macro will initialize the member "freeze" and "thaw" of pwm_backlight_pm_ops as below, .freeze = suspend_fn, .thaw = resume_fn, then during the process of making hibernation snapshot, screen will be blank at the moment of freezing, and then light at the moment of thawing. this is not the right user experience for suspending to disk. so this patch drops freeze and thaw callback, make the LCD is always lighting before the final shutdown. Signed-off-by: Huayi Li <huayi.li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> (cherry picked from commit 1dea1fd09246ada581a99d0669108eea94b7bfee)
2018-03-28pwm-backlight: Fix brightness adjustmentThierry Reding
Split adjustment of the brightness (by changing the PWM duty cycle) from the power on sequence. This fixes an issue where the brightness can no longer be updated once the backlight has been enabled. Reported-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit e4bfeda96872bfe6015cd360008b77cd3b981b2b)
2018-03-28pwm-backlight: Allow for non-increasing brightness levelsMike Dunn
Currently the driver assumes that the values specified in the brightness-levels device tree property increase as they are parsed from left to right. But boards that invert the signal between the PWM output and the backlight will need to specify decreasing brightness-levels. This patch removes the assumption that the last element of the array is the maximum value, and instead searches the array for the maximum value and uses that in the duty cycle calculation. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 8f43e18e2769b3b28383903d501b4da29e388aad)
2018-03-28pwm-backlight: Add power supply supportThierry Reding
Backlights require a power supply to work properly. This commit adds a regulator to power up and power down the backlight. Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 22ceeee16eb8f0d04de3ef43a5174fb30ec18af9)
2018-03-28pwm-backlight: Use new enable_gpio fieldThierry Reding
Make use of the new enable_gpio field and allow it to be set from DT as well. Now that all legacy users of platform data have been converted to initialize this field to an invalid value, it is safe to use the field from the driver. Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 8265b2e4e62632b01f998095d1bbda4d281629fe)
2018-03-28pwm-backlight: Track enable stateThierry Reding
Follow up patches will add support for more complex means of powering the backlight on and off such as using a regulator. To prevent calls to the regulator API from becoming unbalanced, keep track of the enabled state internally. Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 97c38437115aa0c3fb2d50c488814b503ba529e0)
2018-03-28pwm-backlight: Refactor backlight power on/offThierry Reding
In preparation for adding an optional regulator and enable GPIO to the driver, split the power on and power off sequences into separate functions to reduce code duplication at the multiple call sites. Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 62b744a87c1170b339f993aa3cfb22465974816a)
2018-03-28pwm-backlight: Improve readabilityThierry Reding
Add more blank lines to increase readability. While at it, remove a trailing blank line at the end of the file. Signed-off-by: Thierry Reding <treding@nvidia.com> (cherry picked from commit 668e63c6701d486c68b49ffffc0e5b7de1a2e95c)
2018-03-28backlight: use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. This is a cosmetic change to make the code simpler and enhance the readability. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit c512794cada491e008eeca822af7e4ad5db72a56)
2018-03-28Revert "video: backlight: pwm_bl: add pwm_gpio"Dominik Sliwa
This reverts commit 95730406a0e3bbd7f862718782924a3c367845a1.
2018-03-28Revert "video: backlight: EDP client for backlight"Dominik Sliwa
This reverts commit 74df06fb565b7250bc86d79727b66bb02259d54c.
2018-03-28Revert "EDP: remove old system EDP framework (pwm backlight driver)"Dominik Sliwa
This reverts commit 08a13bacb43f206239ae0f1ccbe37325993e2b1b.
2018-03-28Revert "backlight: pwm: Converting benign message to info"Dominik Sliwa
This reverts commit 153a5d54d1a10c5a35f6923e0c6423430d2c7c89.
2018-03-28apalis-tk1:lvds: add option to select 24-bit lvds modeDominik Sliwa
Add ability to switch between 24.1 and 24.0 lvds modes. Mode description can be found in "Using 24-bpp LVDS Panels with Intel® Mobile Chipsets for Embedded Applications". Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28apalis-tk1: move display configuration to device-treeDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-14video: tegra: sor: set drive current for lane4David Pu
drive current for LANE4 was not set if configured as 24bpp lvds out. fix it by programming proper drive current register if using 24bpp out. Bug 1724122 Change-Id: Ie2ad71ace0b4f247e007e671be828230545b15f6 Signed-off-by: David Pu <dpu@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1544691 Reviewed-by: Automatic_Commit_Validation_User Tested-by: Wayne Wang (SW-TEGRA) <waywang@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2018-02-06video: tegra: host: use lock to get syncpt nameGagan Grover
Use sp->syncpt_mutex lock to get syncpt name in syncpt_name_show() Without the lock, it is possible for user to read syncpt name in corrupted state if user read coincides with syncpt free Bug 1838598 Bug 1883567 Change-Id: I69ca5c1d80adaca4b93a337fe4a5debeb78f34fc Reviewed-on: http://git-master/r/1252580 Signed-off-by: Gagan Grover <ggrover@nvidia.com> Reviewed-on: http://git-master/r/1258020 (cherry picked from commit 9a7d12e49ca6c627dff2dc4c15fa9ba153e9265d in rel-24) Reviewed-on: https://git-master.nvidia.com/r/1513005 Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1650064 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2017-11-29tegra: align graphics drivers with android binariesApalis-TK1_LXDE-Image_2.7b5-20171201Dominik Sliwa
Some functionality used by android binary drivers were missing. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-11-29Merge tag 'tegra-l4t-r21.6' into toradex_tk1_l4t_r21.6Marcel Ziswiler
Merge NVIDIA's latest Linux for Tegra aka L4T R21.6 Linux kernel changes from git://nv-tegra.nvidia.com/linux-3.10.git commit: b271e8fa67a6d9c4600274a25636cfe00fdd1b68 Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-09-20dp.c: fix compilation with gcc 7Max Krummenacher
With gcc 7 the following compile time error occurs: | drivers/video/tegra/dc/dp.c:1178:12: error: the omitted middle operand in ?: will always be 'true', suggest explicit middle operand [-Werror=parentheses] | cr_done ? : ({ret = -EINVAL; goto fail; }); | ^ | drivers/video/tegra/dc/dp.c:1186:12: error: the omitted middle operand in ?: will always be 'true', suggest explicit middle operand [-Werror=parentheses] | lt_done ? : ({ret = -EINVAL; goto fail; }); | ^ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-09-20dsi.c: fix compilation with gcc 7Max Krummenacher
With gcc 7 the following compile time error occurs: | drivers/video/tegra/dc/dsi.c:766:34: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context] | drivers/video/tegra/dc/dsi.c:757:1: | (platform_t_phy_ps) ? ( \ | ~~~~~~~~~~~~~~~~~~~ | kernel-source/drivers/video/tegra/dc/dsi.c:766:34: | dsi->info.phy_timing.t_tlpx_ns * 1000, | drivers/video/tegra/dc/dsi.c:757:2: note: in definition of macro 'SELECT_T_PHY' | (platform_t_phy_ps) ? ( \ | ^~~~~~~~~~~~~~~~~ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-07-26video: tegra: nvmap: fix nvmap create handle vulnerabilityKrishna Reddy
Handle the race condition between malicious fd close and copy_to_user error, which can create use after free condition. This is fixed by deferring the fd install, which eliminates the race that leads to use after free condition. Fixing Google Bug 32160775. Bug 1835857 Change-Id: I337807e4360661beced8f9e1155c47b66607b8df Signed-off-by: Krishna Reddy <vdumpa@nvidia.com> Reviewed-on: http://git-master/r/1248391 Reviewed-on: https://git-master.nvidia.com/r/1512958 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2017-06-30video: tegra: sor: set drive current for lane4WayneWWW
Drive current for LANE4 was not set if configured as 24bpp LVDS out. Fix it by programming proper drive current register if using 24bpp out. https://devtalk.nvidia.com/default/topic/1003030 Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-06-29video: tegra: dsi: Set max limit for reading panelPavan Kunapuli
In the debugfs support for reading panel registers, max payload needs to be limited to the buff array size to avoid stack corruption. Bug 1873360 Change-Id: Ibee7bd81027d2669297942c09b905f1dd3bb09ee Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com> Signed-off-by: sakets <sakets@nvidia.com> Reviewed-on: https://git-master/r/1507653 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2017-06-21video: tegra: nvmap: fix information leak in pin/unpinSri Krishna chowdary
When the NVMAP_IOC_PIN_MULT_32 and NVMAP_IOC_UNPIN_MULT_32 are called it is possible that the op.addr is not initialized. This can cause write to some random address thus causing corruption. This patch fixes Google Bug 31668540 bug 1832092 Change-Id: I4d12d1a6c777131ba1fa2a753ea640861f8e82a6 Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com> Reviewed-on: http://git-master/r/1314406 (cherry picked from commit da0c43534bb61e2e0849e297d389517d5e4ed168) Reviewed-on: http://git-master/r/1504673 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: Winnie Hsu <whsu@nvidia.com>
2017-06-09video: tegra: nvmap: Fix NULL pointer dereferenceSri Krishna chowdary
Consider the following case: 1. NVMAP_IOC_CREATE on IOVMM gives a valid fd to user space 2. user space does not call NVMAP_IOC_ALLOC. 3. user space calls a client driver IOCTL which calls dma_buf_map_attachment 4. call to dma_buf_map_attachment propagates till__nvmap_sg_table which has heap_pgalloc as true and tries to access pages[] which has all NULL. 5. Similarly, a dma_buf_kmap() can result in __nvmap_kmap() being called which again results in NULL dereference if pages[] is accessed. A valid __nvmap_sg_table should occur only when h->alloc is true. So, add check for it. bug 1838597 bug 1883708 Change-Id: I400d9d8a94ff1003db207fc9c252b9256d796f60 Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com> Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> (cherry picked from commit 8244d104b7635cb0b26b651b6851498b9a84d7d6) Reviewed-on: http://git-master/r/1489579 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2017-05-26video: tegra: nvmap: Fix security issue in NVMAP_IOC_PARAMGagan Grover
Initialized the uninitialized variables and handled return status from nvmap_get_handle_param. Bug 1884311 Bug 1820242 Change-Id: I2390c859d2b2af39eaff44749ca64e60920fe944 Signed-off-by: Gagan Grover <ggrover@nvidia.com> Reviewed-on: http://git-master/r/1259560 Reviewed-on: http://git-master/r/1489707 GVS: Gerrit_Virtual_Submit Tested-by: Sumit Gupta <sumitg@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2017-05-25video: tegra: nvmap: Fix OOB vulnerabilitySagar Kadamati
Check all pages' parameters before reserve pages. Bug 1883463 Bug 1831426 Bug 200247013 Manual port: http://git-psac/r/9287 (cherry picked from commit 61a05b52b8a17593e2817076b9bf59efdd9268ad) Change-Id: I2f47c385ff8f4a9ca6bf37ee41749bd684ca1a20 Signed-off-by: Xia Yang <xiay@nvidia.com> Signed-off-by: Sagar Kadamati <skadamati@nvidia.com> Reviewed-on: http://git-master/r/1273326 Reviewed-on: http://git-master/r/1488769 GVS: Gerrit_Virtual_Submit Tested-by: Sumit Gupta <sumitg@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2017-05-05video: tegra: host: Add submit checksMikko Perttunen
Currently nvhost performs minimal checking for submits it passes to hardware: The kernel does not check if job syncpoints are allocated and the gather classes are not verified currently. This patch adds checks for syncpoint ids and gather classes. Adapted from 0abcbd69c4cbd0093e223b6c248fdd53c2886951. Bug 1831406 Change-Id: Ifb9d2090009d16d0f56bc11546036167c7f72228 Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-on: http://git-master/r/1242190 Reviewed-by: Winnie Hsu <whsu@nvidia.com> Tested-by: Winnie Hsu <whsu@nvidia.com>
2017-05-05video: tegra: host: Protect channel ioctlArto Merilainen
Channel ioctl interface is not multithreading safe and as the common case is that we have only a single active user for an open fd, add a mutex to force serialization of ioctl calls. Bug 1830021 Change-Id: Ifa6595a105b913345104f216f0541c371e89efe5 (cherry picked from commit 7b24caa9a8d2ab08fe0c7be112e805e44906d956) Signed-off-by: Gagan Grover <ggrover@nvidia.com> Reviewed-on: http://git-master/r/1248801 Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit
2017-05-05video: tegra: nvmap: fix possible use after freeGagan Grover
Fix possible use after free issue. Bug 1814555 Bug 1884319 Change-Id: I826aa34f61d43fda5419a528697ce84ba2ce1eae Reviewed-on: http://git-master/r/1221643 Signed-off-by: Gagan Grover <ggrover@nvidia.com> Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: http://git-master/r/1257999 (cherry picked from commit b1647da33cff0c498ca8439a722ea1962ecf6901 in rel-24) Reviewed-on: http://git-master/r/1461184 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2017-05-05video: tegra: host: Fix overflow issue allocationMikko Perttunen
Change kmalloc to kmalloc_array to prevent overflow issues caused by large values supplied by user. Based on "video: tegra: host: Fix overflow issues in allocation" in nvhost/. Coverity ID 27942 Bug 1856419 Change-Id: I5e96d0ec184543782dfe8814ad7e856b3b71221c Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-on: http://git-master/r/1295062 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2017-05-05video: tegra: nvmap: Check if handle holds a buffer before mapSri Krishna chowdary
Consider the following case: 1. NVMAP_IOC_CREATE gives a valid fd to user space 2. user space calls NVMAP_IOC_ALLOC and it fails. So, all of the handle's allocation fields are zero. 3. Subsequent dma_buf_vmap, mmap on fd leads to __nvmap_mmap call. 4. handle is valid but h->alloc, h->carveout, h->heap_pgalloc, h->vaddr all are 0. 5. We check for h->heap_pgalloc which is false, so proceed and dereference h->carveout leading to NULL pointer exception. A valid __nvmap_mmap should occur only when h->alloc is true. So, add check for it. bug 1837468 Change-Id: I9be9d94f9b74c25b9b588fb1a16a74e96161ceda Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com> Reviewed-on: http://git-master/r/1253236 (cherry picked from commit c5da78cf3d0c19f1e04501a4b3f64a5acacd0ff3) Reviewed-on: http://git-master/r/1312264 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2017-04-04tegra: video: use modedb to specify frame buffer resolutionBhuvanchandra DV
Allow to specify framebuffer videomode using kernel command line parameters. NVIDIAs binary X driver later on picks up those settings and start X with current mode settings, if no EDID data are available. Reused some of the implementation from Stefan's work for modedb support[1] on Tegra20/30 [1] http://git.toradex.com/cgit/linux-toradex.git/commit/?h=tegra-next&id=1d3625dd9903bcc59e2df56836565ebb682948c1 Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-04-04apalis-tk1: fix lp1 sleepDominik Sliwa
Fix suspend and resume for LP1 sleep. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-03-20video: tegra: nvmap: fix time-of-check,time-of-use vulnerabilitySri Krishna chowdary
Validate the region specified by offset and size before performing the operations like nvmap_prot_handle, nvmap_cache_maint and nvmap_handle_mk*. This validation of offset and size once the values are in local variables guarantees that even though user space changes the values in user buffers, nvmap continues to perform operations with the contents that are validated. Fixes Google Bug 34113000. bug 1862379 Change-Id: Ief81887b3d94b49f3dcf4d2680d9d7b257c54092 Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com> Signed-off-by: Bibek Basu <bbasu@nvidia.com> Reviewed-on: http://git-master/r/1298712 (cherry picked from commit f45441da608d8015ece73d253d4bdb48863f99e2) Reviewed-on: http://git-master/r/1310316 (cherry picked from commit 57367ab3be5f1c52dd6b885f114ae90dfce5a363) Reviewed-on: http://git-master/r/1319910 GVS: Gerrit_Virtual_Submit
2016-11-08video: tegra: host: Prevent the race between channel open and closeGagan Grover
Moved fd_install() at the end of the channel_open ioctl. So, the fd can't be used until open ioctl completes. Bug 1832094 Change-Id: Ib33d43bf5164418a38f98677d4e3295f3d1c1450 Signed-off-by: Gagan Grover <ggrover@nvidia.com> Reviewed-on: http://git-master/r/1248180 (cherry picked from commit e6a41d5c0049c2878543006b67b7ee2b2bbda2ab) Reviewed-on: http://git-master/r/1249505 Reviewed-by: Winnie Hsu <whsu@nvidia.com> Tested-by: Winnie Hsu <whsu@nvidia.com>
2016-11-08video: tegra: host: add lower bound to num_syncpt_incrsGagan Grover
Check if there is at least one syncpt_incrs in each job. Bug 1812182 Change-Id: I0bd0b2e7c4d01641c83ba729ec34390ddea81496 Reviewed-on: http://git-master/r/1221226 Signed-off-by: Gagan Grover <ggrover@nvidia.com> Reviewed-on: http://git-master/r/1248797 GVS: Gerrit_Virtual_Submit Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
2016-09-29video: tegra: dc: fix gcc-6 compilationApalis_TK1_LinuxImageV2.6.1Beta1_20160929Marcel Ziswiler
drivers/video/tegra/dc/dc.c:116:3: error: 'can_filter' defined but not used [-Werror=unused-const-variable=] } can_filter[] = { ^~~~~~~~~~ Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
2016-09-29fbcon: logo: allow easy integration of a custom Linux boot logoMarcel Ziswiler
This patch allows for easy integration of a custom Linux boot logo to replace the Tux' being shown by default. Use gimp or the like to create a raw PPM in your desired resolution. Reduce the number of colours in the image to 224: user@host:~$ ppmquant 224 Toradex-640x480.ppm > \ Toradex-640x480-224.ppm ppmquant: making histogram... ppmquant: 370 colors found ppmquant: choosing 224 colors... ppmquant: mapping image to new colors... Convert it from raw PPM to ASCII format: user@host:~$ pnmnoraw Toradex-640x480-224.ppm > \ Toradex-640x480-ascii-224.ppm Copy it into the Linux sources: cp Toradex-640x480-ascii-224.ppm linux-toradex/drivers/video/logo/\ logo_custom_clut224.ppm Activate exclusively custom Linux logo in the kernel configuration: Device Drivers -> Graphics support -> Bootup logo -> Custom 224-color Linux logo And re-compile the kernel. (cherry picked from commit fa2371bff9ac03581881849d8f95678ef3992719)
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-11 00:28:08 +0000