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2016-06-09i2c: mux: refer to i2c-mux.txtSimon Horman
Correct references to i2c-mux.txt which was previously mux.txt. Also correct the spelling of relevant. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Peter Rosin <peda@axentia.se> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-06-09NVMe: Only release requested regionsJohannes Thumshirn
The NVMe driver only requests the PCIe device's memory regions but releases all possible regions (including eventual I/O regions). This leads to a stale warning entry in dmesg about freeing non existent resources. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-06-09i2c: octeon: Avoid printk after too long SMBUS messageJan Glauber
Remove the warning about a too long SMBUS message because the ipmi_ssif driver triggers this warning too frequently so it spams the message log. Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-06-09i2c: octeon: Missing AAK flag in case of I2C_M_RECV_LENJan Glauber
During receive the controller requires the AAK flag for all bytes but the final one. This was wrong in case of I2C_M_RECV_LEN, where the decision if the final byte is to be transmitted happened before adding the additional received length byte. Set the AAK flag if additional bytes are to be received. Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-06-09i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BARMika Westerberg
Many Intel systems the BIOS declares a SystemIO OpRegion below the SMBus PCI device as can be seen in ACPI DSDT table from Lenovo Yoga 900: Device (SBUS) { OperationRegion (SMBI, SystemIO, (SBAR << 0x05), 0x10) Field (SMBI, ByteAcc, NoLock, Preserve) { HSTS, 8, Offset (0x02), HCON, 8, HCOM, 8, TXSA, 8, DAT0, 8, DAT1, 8, HBDR, 8, PECR, 8, RXSA, 8, SDAT, 16 } There are also bunch of AML methods that that the BIOS can use to access these fields. Most of the systems in question AML methods accessing the SMBI OpRegion are never used. Now, because of this SMBI OpRegion many systems fail to load the SMBus driver with an error looking like one below: ACPI Warning: SystemIO range 0x0000000000003040-0x000000000000305F conflicts with OpRegion 0x0000000000003040-0x000000000000304F (\_SB.PCI0.SBUS.SMBI) (20160108/utaddress-255) ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver The reason is that this SMBI OpRegion conflicts with the PCI BAR used by the SMBus driver. It turns out that we can install a custom SystemIO address space handler for the SMBus device to intercept all accesses through that OpRegion. This allows us to share the PCI BAR with the AML code if it for some reason is using it. We do not expect that this OpRegion handler will ever be called but if it is we print a warning and prevent all access from the SMBus driver itself. Link: https://bugzilla.kernel.org/show_bug.cgi?id=110041 Reported-by: Andy Lutomirski <luto@kernel.org> Reported-by: Pali Rohár <pali.rohar@gmail.com> Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: stable@vger.kernel.org
2016-06-09drivers: of: add definition of early_init_dt_alloc_reserved_memory_archBen Dooks
The function early_init_dt_alloc_reserved_memory_arch is defined in drivers/of/of_reserved_mem.c but is not declared in any of the header files. Add the declaration of this to avoid the warning: drivers/of/of_reserved_mem.c:31:19: warning: symbol 'early_init_dt_alloc_reserved_memory_arch' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> [robh: drop extern from declaration] Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-09drivers/of: Fix depth for sub-tree blob in unflatten_dt_nodes()Gavin Shan
The function is unflattening device sub-tree blob if @dad passed to the function is valid. Currently, this functionality is used by PPC PowerNV PCI hotplug driver only. There are possibly multiple nodes in the first level of depth, fdt_next_node() bails immediately when @depth becomes negative before the second device node can be probed successfully. It leads to the device nodes except the first one won't be unflattened successfully. This fixes the issue by setting the initial depth (@inital_depth) to 1 when this function is called to unflatten device sub-tree blob. No logic changes when this function is used to unflatten non-sub-tree blob. Cc: Rhyland Klein <rklein@nvidia.com> Fixes: 78c44d910 ("drivers/of: Fix depth when unflattening devicetree") Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Tested-by: Rhyland Klein <rklein@nvidia.com> Tested-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-09docs: kernel-doc: Add "example" and "note" to the magic section typesJonathan Corbet
Lots of kerneldoc entries use "example:" or "note:" as section headers. Until such a time as we can make them use proper markup, make them work as intended. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-06-09docs: self-protection: rename "leak" to "exposure"Kees Cook
The meaning of "leak" can be both "untracked resource allocation" and "memory content disclosure". This document's use was entirely of the latter meaning, so avoid the confusion by using the Common Weakness Enumeration name for this: Information Exposure (CWE-200). Additionally adds a section on structure randomization. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-06-09Merge branch 'sphinx-for-docs-next' into doc/4.8Jonathan Corbet
Jani Nikula says: Jon, this is v2 of [1] and [2], with a considerable amount of polish and fixes added. We started dogfooding this within drm-intel, and Daniel has reviewed the lot and contributed a number of fixes, most notably accurate file and line number references from Sphinx build errors/warnings to the kernel-doc comments in source code. We believe this is now in good shape for merging for v4.8. It's all in my sphinx-for-docs-next branch that you've already looked at; pull details below. When this lands in docs-next and we can backmerge to drm, we'll plunge ahead and convert gpu.tmpl to rst, and have that ready for v4.8. We think it's best to contribute that via the drm tree, as it'll involve splitting up the documentation and likely numerous updates to kernel-doc comments. I plan to update Documentation/kernel-doc-nano-HOWTO.txt for Sphinx and rst, obviously converting it to rst while at it.
2016-06-09Merge tag 'mac80211-for-davem-2016-06-09' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== Two more fixes for now: * a fix for a long-standing iwpriv 32/64 compat issue * two fairly recently introduced (4.6) warning asking for symmetric operations are erroneous and I remove them ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-09Merge branch 'mlxsw-fixes'David S. Miller
Jiri Pirko says: ==================== mlxsw: couple of fixes Couple of fixes from Ido. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-09mlxsw: spectrum: Don't sleep during ndo_get_phys_port_name()Ido Schimmel
When rtnl_fill_ifinfo() is called for a certain netdevice it queries its various parameters such as switch id and physical port name. The function might get called in an atomic context, which means the underlying driver must not sleep during the query operation. Don't query the device and sleep during ndo_get_phys_port_name(), but instead store the needed parameters in port creation time. Fixes: 2bf9a58675c5 ("mlxsw: spectrum: Add support for physical port names") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-09mlxsw: spectrum: Make split flow match firmware requirementsIdo Schimmel
When a port is created following a split / unsplit we need to map it to the correct module and lane, enable it and then continue to initialize its various parameters such as MTU and VLAN filters. Under certain conditions, such as trying to split ports at the bottom row of the front panel by four, we get firmware errors. After evaluating this with the firmware team it was decided to alter the split / unsplit flow, so that first all the affected ports are mapped, then enabled and finally each is initialized separately. Fix the split / unsplit flow by first mapping and enabling all the affected ports. Newer firmware versions will support both flows. Fixes: 18f1e70c4137 ("mlxsw: spectrum: Introduce port splitting") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-09ARM: 8579/1: mm: Fix definition of pmd_mknotpresentSteve Capper
Currently pmd_mknotpresent will use a zero entry to respresent an invalidated pmd. Unfortunately this definition clashes with pmd_none, thus it is possible for a race condition to occur if zap_pmd_range sees pmd_none whilst __split_huge_pmd_locked is running too with pmdp_invalidate just called. This patch fixes the race condition by modifying pmd_mknotpresent to create non-zero faulting entries (as is done in other architectures), removing the ambiguity with pmd_none. [catalin.marinas@arm.com: using L_PMD_SECT_VALID instead of PMD_TYPE_SECT] Fixes: 8d9625070073 ("ARM: mm: Transparent huge page support for LPAE systems.") Cc: <stable@vger.kernel.org> # 3.11+ Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Steve Capper <steve.capper@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-06-09ARM: 8578/1: mm: ensure pmd_present only checks the valid bitWill Deacon
In a subsequent patch, pmd_mknotpresent will clear the valid bit of the pmd entry, resulting in a not-present entry from the hardware's perspective. Unfortunately, pmd_present simply checks for a non-zero pmd value and will therefore continue to return true even after a pmd_mknotpresent operation. Since pmd_mknotpresent is only used for managing huge entries, this is only an issue for the 3-level case. This patch fixes the 3-level pmd_present implementation to take into account the valid bit. For bisectability, the change is made before the fix to pmd_mknotpresent. [catalin.marinas@arm.com: comment update regarding pmd_mknotpresent patch] Fixes: 8d9625070073 ("ARM: mm: Transparent huge page support for LPAE systems.") Cc: <stable@vger.kernel.org> # 3.11+ Cc: Russell King <linux@armlinux.org.uk> Cc: Steve Capper <Steve.Capper@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-06-09Revert "drm/i915/ilk: Don't disable SSC source if it's in use"Daniel Vetter
This reverts commit f165d2834ceb3d5c29bebadadc27629bebf402ac. It breaks one of our CI systems. Quoting from Ville: [ 13.100979] [drm:ironlake_init_pch_refclk] has_panel 1 has_lvds 1 has_ck505 0 using_ssc_source 1 [ 13.101413] ------------[ cut here ]------------ [ 13.101429] kernel BUG at drivers/gpu/drm/i915/intel_display.c:8528! "which is the 'BUG_ON(val != final)' at the end of ironlake_init_pch_refclk()." Cc: stable@vger.kernel.org Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Lyude <cpaul@redhat.com> Cc: marius.c.vlad@intel.com References: https://www.spinics.net/lists/dri-devel/msg109557.html Acked-by: Lyude <cpaul@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-09Merge branch 'stable/for-jens-4.7' of ↵Jens Axboe
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus Konrad writes: Thishas two fixes for a guest migrating from host that has multi-queue to one without it (and vice-versa).
2016-06-09drm/amd/powerplay: delete useless code as pptable changed in vbios.Rex Zhu
The vbios table changed so this code is useless now. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amd/powerplay: fix bug visit array out of boundsRex Zhu
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix smu ucode memleak (v2)Monk Liu
Properly release the smu ucode in powerplay. v2: agd: add polaris as well Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: add release firmware for cgsMonk Liu
Powerplay uses cgs to load the firmware so add a function to release it as well to avoid leaking it on driver unload. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix tonga smu_fini mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix fiji smu fini mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix cik sdma ucode memleakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix sdma24 ucode mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix sdma3 ucode mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix uvd fini mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix gfx 7 ucode mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix gfx8 ucode mem leakMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix missing free wb for cond_execMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix memleak in pptable_initMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix mem leak in atombiosMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix mem leak in pplib/hwmgrMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix mem leak in smumgrMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: add pipeline sync while vmid switch in same ctxChunming Zhou
Since vmid-mgr supports vmid sharing in one vm, the same ctx could get different vmids for two emits without vm flush, vm_flush could be done in another ring. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: vBIOS post only call when mem_size zeroMonk Liu
Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: modify sdma start sequenceMonk Liu
should fist halt engine, and then doing the register programing, and later unhalt engine, and finally run ring_test. this help fix reloading driver hang issue of SDMA ring original sequence is wrong for it programing engine after unhalt, which will lead to fault behavior when doing driver reloading after unloaded. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: init more register for sdmaMonk Liu
This help fix reloading driver hang issue of SDMA ring Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: clear SA bo when createdMonk Liu
This help fix reloading driver hang issue of SDMA ring Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix fw leak in non-powerplay dpm codeAlex Deucher
We need to release the firmware on driver tear down. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: fix pplib finish bugMonk Liu
1,should use late_fini to kfree all resource otherwise the released pointer maybe accessed in IRQ ip fini routine. 2,hwmgr should not be kfree by pem_fini which is invoked by hw fini path. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: impl late_fini for amdgpu_pp_ipMonk Liu
This implements late_init support for powerplay. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu: add late_fini for ip_funcsMonk Liu
This give IP modules an optional late cleanup function. This is needed to handle tricky inter-module dependencies during tear down. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/admgpu/powerplay/polaris: fix powertune table uploadRex Zhu
Exclude AVFS related fields when update powertune table to hw. The driver shouldn't set them directly. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09drm/amdgpu/iceland: Set SC_PA_RASTER_CONFIG according to different RB enabledKen Wang
fix the raster config setting for different iceland configs. Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-06-09ARM: imx6ul: Fix Micrel PHY maskFabio Estevam
The value used for Micrel PHY mask is not correct. Use the MICREL_PHY_ID_MASK definition instead. Thanks to Jiri Luznicky for proposing the fix at https://community.freescale.com/thread/387739 Cc: <stable@vger.kernel.org> Fixes: 709bc0657fe6f9f55 ("ARM: imx6ul: add fec MAC refrence clock and phy fixup init") Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-09drm: Move format-related helpers to drm_fourcc.cLaurent Pinchart
The drm_crtc.c file is a mess, making the ABI documentation confusing since all functions are in the same bag. Split the format-related helpers to a new drm_fourcc.c file. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465466048-2020-1-git-send-email-laurent.pinchart@ideasonboard.com
2016-06-09drm/atomic: kerneldoc for drm_atomic_crtc_needs_modesetDaniel Vetter
Just a bit of drive-by ocd. v2: Improve per Liviu's feedback. Cc: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-7-git-send-email-daniel.vetter@ffwll.ch
2016-06-09drm/hisilicon: Implement some semblance of vblank event handlingDaniel Vetter
atomic_flush seems to be the right place, but I'm not entirely sure whether this will catch them all. It could be that when disabling the crtc we'll miss the vblank. While at it nuke the dummy functions. v2: Be more robust and either arm, when the CRTC is on, or just send the event out right away. Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Archit Taneja <architt@codeaurora.org> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-5-git-send-email-daniel.vetter@ffwll.ch