| Commit message (Collapse) | Author | Age |
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To follow more closely the new atomic API we split the dpms()
helper into the enable() and disable() helper to get exactly the
same semantics.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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The planes are already disabled by the drm_atomic_helper_commit() code
so we don't need to disable the in these two places.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Run dpms operations through the atomic intefaces. This basically removes
the .dpms() callback from econders and crtcs and use .disable() and
.enable() to turn the crtc on and off.
v2: Address comments by Joonyoung:
- make hdmi code call ->disable() instead of ->dpms()
- do not use WARN_ON on crtc enable/disable
v3: - Fix build failure after the hdmi change in v2
- Change dpms helper of ptn3460 bridge
v4: - remove win_commit() call from .enable()
v5: - move .atomic_check() to the atomic PageFlip patch, and transform it
in .atomic_begin()
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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exynos needs to update planes with the crtc enabled (mainly for the FIMD
case) so this specific atomic commit changes the order of
drm_atomic_helper_commit_modeset_enables() and
drm_atomic_helper_commit_planes() to commit planes after we enable crtc
and encoders.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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This is a preparation commit to move exynos_drm_crtc_disable() together
with the future exynos_drm_crtc_enable() that will come from the split of
exynos_drm_crtc_dpms() callback.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Everything starts disabled so we don't really need to disable anything.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Now that no one is using the functions exported by exynos_drm_plane due
to the atomic conversion we can make remove some of the them or make them
static.
v2: remove unused exynos_drm_crtc
v3: fix checkpatch error (reported by Joonyoung)
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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PageFlips now use the atomic helper to work through the atomic modesetting
API. Async page flips are not supported yet.
v2: Add .atomic_begin() step to handle the vblank part we removed from
exynos page_flip code.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Now that phase 1 and 2 are complete switch .set_config helper to
use the atomic one.
v2: also remove .prepare() callback
v3: remove .mode_set() and .mode_set_base() and encoder's
.prepare() callbacks
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Now that phase 1 and 2 are complete we can switch the update/disable_plane
callbacks to their atomic version.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Use drm_atomic_set_fb_for_plane() in the legacy page_flip path to keep
track of the framebuffer pointer and reference.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Set CRTC, planes and connectors to use the default implementations from
the atomic helper library. The helpers will work to keep track of state
for each DRM object.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Handle changes by removing copy from adjusted_mode to mode as using
adjusted_mode of crtc_state.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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The new atomic infrastructure needs the .mode_set_nofb() callback to
update CRTC timings before setting any plane.
v2: remove WARN_ON(!crtc->state) from mode_set_nofb
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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The atomic helper to disable planes also uses the optional
.atomic_disable() helper. The unique operation it does is calling
.win_disable()
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Rip out the check from exynos_update_plane() and create
exynos_check_plane() for the check phase enabling use to use
the atomic helpers to call our check and update phases when updating
planes.
Update all users of exynos_update_plane() accordingly to call
exynos_check_plane() before.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>y
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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The exynos_update_plane function needs 16.16 fixed point source data.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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git://anongit.freedesktop.org/drm-intel into drm-next
One more drm-misc pull for 4.2. The important one is the fix from Laurent
for Daniel Stone's mode_blob work.
* tag 'topic/drm-misc-2015-06-22' of git://anongit.freedesktop.org/drm-intel:
drm/atomic: Don't set crtc_state->enable manually
drm: prime: Document gem_prime_mmap
drm: Avoid the double clflush on the last cache line in drm_clflush_virt_range()
drm/atomic: Extract needs_modeset function
drm/cma: Fix 64-bit size_t build warnings
Documentation/drm: Update rotation property
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The enable field needs to be kept in sync with the mode_blob field. Call
drm_atomic_set_mode_prop_for_crtc() instead of setting enable to false
in order to dereference the mode blob correctly.
v2:
- Check the return value of drm_atomic_set_mode_prop_for_crtc()
- Drop the num_connectors local variable
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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gem_prime_map is not currently described in the DRM manual, lets document
it.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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As the clflush operates on cache lines, and we can flush any byte
address, in order to flush all bytes given in the range we issue an
extra clflush on the last byte to ensure the last cacheline is flushed.
We can can the iteration to be over the actual cache lines to avoid this
double clflush on the last byte.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We use the same check already in the atomic core, so might as well
make this official. And it's also reused in e.g. i915.
Motivated by Maarten's idea to extract a connector_changed state out
of mode_changed.
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-By: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Fix warnings related to size_t when building for 64-bit architectures:
drivers/gpu/drm/drm_gem_cma_helper.c: In function ‘drm_gem_cma_create’:
drivers/gpu/drm/drm_gem_cma_helper.c:114:4: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t’ [-Wformat=]
size);
^
drivers/gpu/drm/drm_gem_cma_helper.c: In function ‘drm_gem_cma_describe’:
drivers/gpu/drm/drm_gem_cma_helper.c:393:4: warning: format ‘%d’ expects argument of type ‘int’, but argument 8 has type ‘size_t’ [-Wformat=]
off, &cma_obj->paddr, cma_obj->vaddr, obj->size);
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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git://anongit.freedesktop.org/drm-intel into drm-next
i915 fixes for stuff in next
* tag 'drm-intel-next-fixes-2015-06-18' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Don't set enabled value of all CRTCs when restoring the mode
drm/i915: Don't update staged config during force restore modesets
drm/i915: Don't check modeset state in the hw state force restore path
drm/i915: Add SCRATCH1 and ROW_CHICKEN3 to the register whitelist.
drm/i915: Extend the parser to check register writes against a mask/value pair.
drm/i915: Fix command parser to validate multiple register access with the same command.
drm/i915: Don't skip request retirement if the active list is empty
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The code in intel_crtc_restore_mode() sets the enabled value of all the
CRTCs when restoring the mode after a suspend/resume cycle. When more
than one CRTC is enabled, that causes drm_atomic_helper_check_modeset()
to fail if there is more than one pipe enabled, since all but one CRTC
has valid connector data. Instead, set only the enabled value for the
CRTC passed as an argument.
v2: Don't leak atomic state. (Matt)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90468
References: https://bugs.freedesktop.org/show_bug.cgi?id=90396
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
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The force restore path relies on the staged config to preserve the
configuration used before a suspend/resume cycle. The update done to it
in intel_modeset_fixup_state() would cause that information to be lost
after the first modeset, making it impossible to restore the modes for
pipes B and C.
References: https://bugs.freedesktop.org/show_bug.cgi?id=90468
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Since the force restore logic will restore the CRTCs state one at a
time, it is possible that the state will be inconsistent until the whole
operation finishes. A call to intel_modeset_check_state() is done once
it's over, so don't check the state multiple times in between. This
regression was introduced in:
commit 7f27126ea3db6ade886f18fd39caf0ff0cd1d37f
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Wed Nov 5 14:26:06 2014 -0800
drm/i915: factor out compute_config from __intel_set_mode v3
v2: Rename check parameter to force_restore. (Matt)
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=94431
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Only bit 27 of SCRATCH1 and bit 6 of ROW_CHICKEN3 are allowed to be
set because of security-sensitive bits we don't want userspace to mess
with. On HSW hardware the whitelisted bits control whether atomic
read-modify-write operations are performed on L3 or on GTI, and when
set to L3 (which can be 10x-30x better performing than on GTI,
depending on the application) require great care to avoid a system
hang, so we currently program them to be handled on GTI by default.
Beignet can immediately start taking advantage of this change to
enable L3 atomics. Mesa should eventually switch to L3 atomics too,
but a number of non-trivial changes are still required so it will
continue using GTI atomics for now.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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In some cases it might be unnecessary or dangerous to give userspace
the right to write arbitrary values to some register, even though it
might be desirable to give it control of some of its bits. This patch
extends the register whitelist entries to contain a mask/value pair in
addition to the register offset. For registers with non-zero mask,
any LRM writes and LRI writes where the bits of the immediate given by
the mask don't match the specified value will be rejected.
This will be used in my next patch to grant userspace partial write
access to some sensitive registers.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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same command.
Until now the software command checker assumed that commands could
read or write at most a single register per packet. This is not
necessarily the case, MI_LOAD_REGISTER_IMM expects a variable-length
list of offset/value pairs and writes them in sequence. The previous
code would only check whether the first entry was valid, effectively
allowing userspace to write unrestricted registers of the MMIO space
by sending a multi-register write with a legal first register, with
potential security implications on Gen6 and 7 hardware.
Fix it by extending the drm_i915_cmd_descriptor table to represent
multi-register access and making validate_cmd() iterate for all
register offsets present in the command packet.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Apparently we can have requests even if though the active list is empty,
so do the request retirement regardless of whether there's anything
on the active list.
The way it happened here is that during suspend intel_ring_idle()
notices the olr hanging around and then proceeds to get rid of it by
adding a request. However since there was nothing on the active lists
i915_gem_retire_requests() didn't clean those up, and so the idle work
never runs, and we leave the GPU "busy" during suspend resulting in a
WARN later.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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fixes and virtio-vga support.
* 'virtio-gpu-drm-next' of git://git.kraxel.org/linux:
virtio-gpu: add locking for vbuf pool
drm/virtgpu: initialise fbdev after getting initial display info
Add virtio-vga bits.
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Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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This should avoid issues with the fbdev path trying to render
before we've gotten the display info.
Signed-off-by: Dave Airlie <airlied@redhat.com>
[ kraxel: wait for display-info reply ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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git://anongit.freedesktop.org/tegra/linux into drm-next
drm/panel: Changes for v4.2-rc1
This contains fixes for the long-standing build issues that some of the
bridge drivers were exposing. Other than that it's mostly cleanup and a
couple of new simple panels that are supported.
* tag 'drm/panel/for-4.2-rc1' of git://anongit.freedesktop.org/tegra/linux:
drm/panel: simple: Add bus format for HannStar HSD100PXN1
drm/panel: simple: Add display timing for HannStar HSD100PXN1
drm/panel: ld9040: Remove useless padding
drm/panel: Constify OF match tables
drm/bridge: Remove stale ptn3460.h include
drm/bridge: ps8622: Include linux/gpio/consumer.h
drm/bridge: ptn3460: Include linux/gpio/consumer.h
drm/bridge: dw-hdmi: Return number of EDID modes
drm/panel: simple: Add support for LG LB070WV8 800x480 7" panel
drm/bridge: ptn3460: Pass flags to devm_gpiod_get()
drm/bridge: ps8622: Pass flags to devm_gpiod_get()
drm/bridge: ptn3460: Fix I2C ID table to match the reported modalias
drm/bridge: dw-hdmi: Staticize dw_hdmi_bridge_funcs
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This patch adds the bus_format field to the HSD100PXN1 panel structure.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add support for the Hannstar HSD100PXN1 to the DRM simple panel driver.
The HSD100PXN1 is an XGA (1024x768) panel with an 18-bit LVDS interface.
It supports pixel clocks in the range of 55-75 MHz.
This panel is offered for sale by Freescale as a companion part to its'
i.MX5x Quick Start board and i.MX6 SABRE platforms with under the name
MCIMX-LVDS1.
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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There's some useless padding in the struct spi_driver definition. Remove
it since it serves no useful purpose.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Both the Samsung LD9040 and Samsung S6E8AA0 panel drivers are missing
a const qualifier for their OF match tables. This data is static and
never changes, so can be read-only.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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This header file declares prototypes of functions that are no longer
used. Remove this file and all references to it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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If GPIOLIB=n and asm-generic/gpio.h is not used:
drivers/gpu/drm/bridge/ps8622.c: In function ‘ps8622_pre_enable’:
drivers/gpu/drm/bridge/ps8622.c:368: error: implicit declaration of function ‘gpiod_set_value’
drivers/gpu/drm/bridge/ps8622.c: In function ‘ps8622_probe’:
drivers/gpu/drm/bridge/ps8622.c:584: error: implicit declaration of function ‘devm_gpiod_get’
drivers/gpu/drm/bridge/ps8622.c:584: warning: assignment makes pointer from integer without a cast
drivers/gpu/drm/bridge/ps8622.c:590: error: implicit declaration of function ‘gpiod_direction_output’
drivers/gpu/drm/bridge/ps8622.c:596: warning: assignment makes pointer from integer without a cast
Add the missing #include <linux/gpio/consumer.h> to fix this.
Fixes: f1336e6afb ("drm/bridge: Add I2C based driver for ps8622/ps8625 bridge")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
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If GPIOLIB=n and asm-generic/gpio.h is not used:
drivers/gpu/drm/bridge/ptn3460.c: In function ‘ptn3460_pre_enable’:
drivers/gpu/drm/bridge/ptn3460.c:135: error: implicit declaration of function ‘gpiod_set_value’
drivers/gpu/drm/bridge/ptn3460.c: In function ‘ptn3460_probe’:
drivers/gpu/drm/bridge/ptn3460.c:333: error: implicit declaration of function ‘devm_gpiod_get’
drivers/gpu/drm/bridge/ptn3460.c:333: warning: assignment makes pointer from integer without a cast
drivers/gpu/drm/bridge/ptn3460.c:340: error: implicit declaration of function ‘gpiod_direction_output’
drivers/gpu/drm/bridge/ptn3460.c:346: warning: assignment makes pointer from integer without a cast
Add the missing #include <linux/gpio/consumer.h> to fix this.
Fixes: af478d8823 ("drm/bridge: ptn3460: use gpiod interface")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The dw_hdmi_connector_get_modes() function accidentally forgets to
return the number of modes it added, although it has this information
stored in a local variable. Let's fix that.
Without this fix, drm_helper_probe_single_connector_modes_merge_bits()
could get confused and always call drm_add_modes_noedid(). That's not
right.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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This adds support for the LG LB070WV8 7" 800x480 panel to the DRM simple
panel driver.
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.
Use this to simplify the driver. Furthermore this is one caller less
that stops us making the flags argument to gpiod_get*() mandatory.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.
Use this to simplify the driver. Furthermore this is one caller less
that stops us making the flags argument to gpiod_get*() mandatory.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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I2C drivers that support OF, have both an I2C and OF device ID tables
that are used to fill the supported module aliases. But currently the
I2C core only uses the OF table to match a device with a driver and
the aliases information are always reported in the form i2c:<name>.
The client->name is used as the name postfix and when booting with OF
this is obtained with of_modalias_node() which drops the compatible
string vendor prefix.
So for I2C drivers, the I2C and OF device ID tables should be keep in
sync in order to make module auto-loading to work but the I2C device
entries shouldn't have the vendor prefix since that is not reported.
Before this patch:
MODALIAS=i2c:ptn3460
$ modinfo | grep alias
alias: i2c:nxp,ptn3460
alias: of:N*T*Cnxp,ptn3460*
After this patch:
MODALIAS=i2c:ptn3460
$ modinfo | grep alias
alias: i2c:ptn3460
alias: of:N*T*Cnxp,ptn3460*
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Staticize dw_hdmi_bridge_funcs to fix the following sparse warning:
drivers/gpu/drm/bridge/dw_hdmi.c:1458:25: warning: symbol 'dw_hdmi_bridge_funcs' was not declared. Should it be static?
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v4.2-rc1
This contains a couple of mostly fixes for issues that have crept up in
recent versions of linux-next. One issue is that DP AUX transactions of
more than 4 bytes will access the wrong FIFO registers and hence become
corrupt. Another fix is required to restore functionality of Tegra20 if
using the GART. The current code expects the IOMMU aperture to be the
complete 4 GiB address space, whereas the GART on Tegra20 only provides
a 128 MiB aperture. One more issue with IOMMU support is that on 64-bit
ARM, swiotlb is the default IOMMU implementation backing the DMA API. A
side-effect of that is that when dma_map_sg() is called to flush caches
(yes, this is a bit of a hack, but ARM does not provide a better API),
swiotlb will immediately run out of memory because its bounce buffer is
too small to make a framebuffer.
Finally I've included a mostly cosmetic fix that stores register values
in u32 rather than unsigned long to avoid sign-extension issues on 64-
bit ARM. This is only a precaution since it hasn't caused any issues
(yet).
* tag 'drm/tegra/for-4.2-rc1' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: dpaux: Registers are 32-bit
drm/tegra: gem: Flush pages after allocation
drm/tegra: gem: Take into account IOMMU aperture
drm/tegra: dpaux: Fix transfers larger than 4 bytes
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