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2015-08-13drm/tegra: sor: Add Tegra210 eDP supportThierry Reding3-3/+6
The SOR found on Tegra210 is very similar to the version found on Tegra124, except that it no longer supports LVDS. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Implement atomic DPMSThierry Reding1-100/+102
Move all code into the new canonical ->disable() and ->enable() helper callbacks so that they play extra nice with atomic DPMS. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Restore DPMSThierry Reding1-138/+82
In order to restore DPMS with atomic mode-setting, move all code from the ->mode_set() callback into ->enable(). At the same time, rename the ->prepare() callback to ->disable() to use the names preferred by atomic mode-setting. This simplifies the calling sequence and will allow DPMS to use runtime PM in subsequent patches. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dsi: Restore DPMSThierry Reding1-59/+51
In order to restore DPMS with atomic mode-setting, move all code from the ->mode_set() callback into ->enable(). At the same time, rename the ->prepare() callback to ->disable() to use the names preferred by atomic mode-setting. This simplifies the calling sequence and will allow DPMS to use runtime PM in subsequent patches. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: hdmi: Restore DPMSThierry Reding1-45/+29
In order to restore DPMS with atomic mode-setting, move all code from the ->mode_set() callback into ->enable(). At the same time, rename the ->prepare() callback to ->disable() to use the names preferred by atomic mode-setting. This simplifies the calling sequence and will allow DPMS code to use runtime PM in subsequent patches. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: rgb: Restore DPMSThierry Reding1-36/+13
In order to restore DPMS with atomic mode-setting, move all code from the ->mode_set() callback into ->enable(). At the same time, rename the ->prepare() callback to ->disable() to use the names preferred by atomic mode-setting. This simplifies the calling sequence and will allow DPMS code to use runtime PM in subsequent patches. While at it, remove the enabled field that hasn't been used since the demidlayering of the output drivers done in preparation for the atomic mode-setting conversion. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Use DRM debugfs infrastructure for CRCThierry Reding1-37/+8
Instead of duplicating most of the code to set up a debugfs file, use the existing DRM core debugfs infrastructure instead. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Write correct head state registersThierry Reding1-4/+6
The head state registers are per head, so they must be properly indexed. This has worked fine so far because all boards with eDP use it as the primary output, so it is very likely to end up attached to head 0. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Constify display modeThierry Reding1-1/+1
The data structure is always only read, never written, and can hence be referred to by a const pointer. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Reset the correct debugfs fieldsThierry Reding1-2/+2
When tearing down debugfs support, make sure to reset the fields to NULL in the correct order, otherwise the debugfs root will not be properly removed. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Set minor after debugfs initializationThierry Reding1-0/+2
The DRM minor is needed to teardown debugfs, so it needs to be tracked to prevent a crash on driver removal. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Provide error messages in probeThierry Reding1-6/+23
When probing the SOR device fails, output proper error messages to help diagnose the cause of the failure. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: sor: Rename registers for consistencyThierry Reding2-289/+290
The TRM lists indexed registers without an underscore to separate name from index. Use that convention in the driver for consistency. While at it, rename some of the field names to the names used in the TRM. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dpaux: Disable interrupt when detachedThierry Reding1-1/+7
When the DPAUX isn't attached to an SOR the interrupts are not useful. This also prevents a race that could potentially cause a crash on driver removal. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dpaux: Configure pads as I2C by defaultThierry Reding2-0/+27
The DPAUX code paths already configure the pads in AUX mode, but there is no way to reconfigure them in I2C mode for HDMI (the DPAUX module is unused in that case). Enabling the pads in I2C mode by default is the quickest way to support HDMI. Eventually this may need an explicit call in the user drivers. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dpaux: Provide error message in probeThierry Reding1-6/+24
When probing the dpaux device fails, output proper error messages to help diagnose the cause of the failure. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dsi: Add Tegra210 supportThierry Reding3-0/+10
The DSI host controller hasn't changed from Tegra132 to Tegra210, but different characterization parameters may be required. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dsi: Add Tegra132 supportThierry Reding2-0/+2
The DSI host controller hasn't changed from Tegra124 to Tegra132, but different characterization parameters may be required. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dsi: Add Tegra124 supportThierry Reding2-0/+2
The DSI host controller hasn't changed from Tegra114 to Tegra124, but different characterization parameters may be required. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dsi: Use proper back-porch for non-sync video modeThierry Reding1-2/+7
In video modes without sync pulses, the horizontal back-porch needs to include the horizontal sync width. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Rename BASE_COLOR_SIZE* fieldsThierry Reding2-1/+10
Use an underscore to separate the prefix from the color size suffix. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Don't explicitly set owner moduleThierry Reding1-1/+0
The call to platform_driver_register() will already set up the .owner field, so there's no need to do it explicitly. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Rename register for consistencyThierry Reding2-4/+4
The horizontal pulse enable bits are named H_PULSE{0,1,2}_ENABLE in the TRM. Modify the driver to use the same naming for consistency. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Record statisticsThierry Reding2-3/+49
Record interrupt statistics, such as the number of frames and VBLANKs received and the number of FIFO underflow and overflows. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Request syncpoint earlierThierry Reding1-4/+4
Request a syncpoint for display prior to registering the host1x client. This will ensure that the syncpoint will be acquired when the KMS driver initializes. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Remove gratuituous blank lineThierry Reding1-1/+0
Blank lines at the end of functions are hideous, so get rid of it. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Clarify comment about cursor treatmentThierry Reding1-3/+5
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Implement CRC debugfs interfaceThierry Reding2-0/+27
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Add Tegra210 supportThierry Reding2-0/+13
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: dc: Reset VBLANK to offThierry Reding2-2/+4
Upon driver load, reset the VBLANK machinery to off to reflect the hardware state. Since the ->reset() callback is called from the initial drm_mode_config_reset() call, move the latter after the VBLANK machinery initialization by drm_vblank_init(). Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: output: Support low-active hotplug detectThierry Reding2-8/+14
Support low-active hotplug detect signals by storing the GPIO flags parsed from device tree. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: Use SIMPLE_DEV_PM_OPSThierry Reding1-3/+2
Use this macro to reduce some of the boilerplate. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13drm/tegra: Allow VBLANK to be disabledThierry Reding1-0/+1
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Power down regulators when unusedThierry Reding1-12/+98
Keep track of the number of users of DSI and CSI pads and power down the regulators that supply the bricks when all users are gone. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Add Tegra210 supportThierry Reding1-1/+35
Some changes are needed to the configuration settings for some lanes. In addition, the clock lanes for the CSI pads can no longer be calibrated. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Add Tegra132 supportThierry Reding1-0/+18
While Tegra132 has the same pads as Tegra124, some configuration values need to be programmed slightly differently. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Constify OF match tableThierry Reding1-1/+1
This table is never modified and can therefore reside in read-only memory. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Clear calibration statusThierry Reding1-0/+4
Before starting a new calibration cycle, make sure to clear the current status by writing a 1 to the various "calibration done" bits. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Fix clock lane register for DSIThierry Reding1-5/+5
Use more consistent names for the clock lane configuration registers and fix the offset of the upper clock lane configuration register for the first DSI pad. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-08-13gpu: host1x: mipi: Parameterize to support future SoCsThierry Reding1-8/+79
Parameterize more of the register programming to accomodate for changes required by future SoC generations. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-05Linux 4.2-rc1Linus Torvalds1-2/+2
2015-07-04bluetooth: fix list handlingLinus Torvalds2-2/+3
Commit 835a6a2f8603 ("Bluetooth: Stop sabotaging list poisoning") thought that the code was sabotaging the list poisoning when NULL'ing out the list pointers and removed it. But what was going on was that the bluetooth code was using NULL pointers for the list as a way to mark it empty, and that commit just broke it (and replaced the test with NULL with a "list_empty()" test on a uninitialized list instead, breaking things even further). So fix it all up to use the regular and real list_empty() handling (which does not use NULL, but a pointer to itself), also making sure to initialize the list properly (the previous NULL case was initialized implicitly by the session being allocated with kzalloc()) This is a combination of patches by Marcel Holtmann and Tedd Ho-Jeong An. [ I would normally expect to get this through the bt tree, but I'm going to release -rc1, so I'm just committing this directly - Linus ] Reported-and-tested-by: Jörg Otte <jrg.otte@gmail.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Original-by: Tedd Ho-Jeong An <tedd.an@intel.com> Original-by: Marcel Holtmann <marcel@holtmann.org>: Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-049p: cope with bogus responses from server in p9_client_{read,write}Al Viro1-0/+8
if server claims to have written/read more than we'd told it to, warn and cap the claimed byte count to avoid advancing more than we are ready to.
2015-07-04p9_client_write(): avoid double p9_free_req()Al Viro1-0/+1
Braino in "9p: switch p9_client_write() to passing it struct iov_iter *"; if response is impossible to parse and we discard the request, get the out of the loop right there. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-049p: forgetting to cancel request on interrupted zero-copy RPCAl Viro1-1/+2
If we'd already sent a request and decide to abort it, we *must* issue TFLUSH properly and not just blindly reuse the tag, or we'll get seriously screwed when response eventually arrives and we confuse it for response to later request that had reused the same tag. Cc: stable@vger.kernel.org # v3.2 and later Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-04dax: bdev_direct_access() may sleepMatthew Wilcox1-0/+6
The brd driver is the only in-tree driver that may sleep currently. After some discussion on linux-fsdevel, we decided that any driver may choose to sleep in its ->direct_access method. To ensure that all callers of bdev_direct_access() are prepared for this, add a call to might_sleep(). Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-04block: Add support for DAX reads/writes to block devicesMatthew Wilcox2-2/+8
If a block device supports the ->direct_access methods, bypass the normal DIO path and use DAX to go straight to memcpy() instead of allocating a DIO and a BIO. Includes support for the DIO_SKIP_DIO_COUNT flag in DAX, as is done in do_blockdev_direct_IO(). Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-04dax: Use copy_from_iter_nocacheMatthew Wilcox1-1/+1
When userspace does a write, there's no need for the written data to pollute the CPU cache. This matches the original XIP code. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-04dax: Add block size note to documentationMatthew Wilcox1-2/+4
For block devices which are small enough, mkfs will default to creating a filesystem with block sizes smaller than page size. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-04NTB: Add split BAR output for debugfs statsDave Jiang1-15/+68
When split BAR is enabled, the driver needs to dump out the split BAR registers rather than the original 64bit BAR registers. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
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