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>

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>

Use an underscore to separate the prefix from the color size suffix.

Signed-off-by: Thierry Reding <treding@nvidia.com>

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>

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>

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>

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>

Blank lines at the end of functions are hideous, so get rid of it.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Signed-off-by: Thierry Reding <treding@nvidia.com>

Signed-off-by: Thierry Reding <treding@nvidia.com>

Signed-off-by: Thierry Reding <treding@nvidia.com>

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>

Support low-active hotplug detect signals by storing the GPIO flags
parsed from device tree.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Use this macro to reduce some of the boilerplate.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Signed-off-by: Thierry Reding <treding@nvidia.com>

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>

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>

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>

This table is never modified and can therefore reside in read-only
memory.

Signed-off-by: Thierry Reding <treding@nvidia.com>

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>

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>

Parameterize more of the register programming to accomodate for changes
required by future SoC generations.

Signed-off-by: Thierry Reding <treding@nvidia.com>

The length of each EDID block is EDID_LENGTH, and number of blocks is
(1 + edid->extensions) - we need to multiply not add them.

This causes wrong EDID to be passed on, and is a regression introduced
by d2ed3436 (drm: Introduce helper for replacing blob properties)

Signed-off-by: Shixin Zeng <zeng.shixin@gmail.com>
Cc: Daniel Stone <daniels@collabora.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
[danvet: Add Cc: and fix commit summary.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Use kvfree() instead of open-coding it.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Similarly to what is done for SKL, clear the dpll_hw_state of the pipe
config in hsw_dp_set_ddi_pll_sel(), since it main contain stale values.
That can happen if a crtc that was previously driving an HDMI connector
switches to a DP connector. In that case, the wrpll field was left with
its old value, leading to warnings like the one below:

[drm:check_crtc_state [i915]] *ERROR* mismatch in dpll_hw_state.wrpll (expected 0xb035061f, found 0x00000000)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 767 at drivers/gpu/drm/i915/intel_display.c:12324 check_crtc_state+0x975/0x10b0 [i915]()
pipe state doesn't match!

This regression was indroduced in

commit dd3cd74a
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date:   Fri May 15 13:34:29 2015 +0300

    drm/i915: Don't overwrite (e)DP PLL selection on SKL

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Tested-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Avoids a crash on pre-DP asics that support HDMI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

v2: remove unrelated whitespace change, fix C comment

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

And use common fence infrastructure for the wait.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>

If the CONFIG_DEBUG_FS is not selected, compilation of the
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c provides two warnings that
amdgpu_debugfs_regs_init and amdgpu_debugfs_regs_cleanup are used but
never defined. And as result:

ERROR: "amdgpu_debugfs_regs_cleanup" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
ERROR: "amdgpu_debugfs_regs_init" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
            ^
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This reverts commit b9729b17.

This seems to break the cursor on resume for lots of systems.

Cc: stable@vger.kernel.org

Fixes a hang on resume.

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

Remove duplication across asic families and make it symmetric
with the freeing of the code in amdgpu_device.c

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

kfree(NULL) is safe and this check is probably not required

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Reviewed-by: Vaneet Narang <v.narang@samsung.com>
Reviewed-by: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Use kzalloc rather than kcalloc(1.. for allocating
one thing.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Reviewed-by: Vaneet Narang <v.narang@samsung.com>
Reviewed-by: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We only should do so when the BO_VA was actually mapped.
Otherwise we get a nice error message on the next CS.

v2: It actually doesn't matter if it was invalidated or not,
    if it was mapped we need to clear the area where it was mapped.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

This patch is to resolve compute hang at resume time.

v2: (agd5f) squash in second fix

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>