Use devm_kzalloc instead of kzalloc to allocate driver data for the generic dpi
panel driver. This simplifies the driver's probe and remove functions.
Signed-off-by: Archit Taneja <archit@ti.com>
The n8x0 panel contains support to call platform backlight functions.
These are not used by any board, and can be removed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
NEC-nl8048hl11 driver contains support to call platform backlight
functions. These are not used by any board, and can be removed.
Signed-off-by: Archit Taneja <archit@ti.com>
Sharp ls037v7dw01 driver contains support to call platform backlight
functions. These are not used by any board, and can be removed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
acx565akm has support to call set_backlight/get_backlight in platform
code. They are not used by any board, and thus can be removed from the
driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Use the new clock calculation code in the DSI driver.
The new code does not need DSI video mode parameters from the panel
driver, like the old code does. Instead the new code is given the normal
video timings, and a few DSI parameters, which are used to create DSI
video timings.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add new way to iterate over DSI PLL and HSDIV clock divisors.
dsi_pll_calc() and dss_hsdiv_calc() provide a generic way to go over
all the divisors, within given clock range. The functions will call a
callback function for each divider set, making the function reusable for
all use cases.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add new way to iterate over DSS clock divisors. dss_div_calc() provides
a generic way to go over all the divisors, within given clock range.
dss_div_calc() will call a callback function for each divider set,
making the function reusable for all use cases.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add new way to iterate over DISPC clock divisors. dispc_div_calc()
provides a generic way to go over all the divisors, within given pixel
clock range. dispc_div_calc() will call a callback function for each
divider set, making the function reusable for all use cases.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We always use the same clock sources for DSI, so let's remove the
unnecessary clock source fields from dsi_data.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of managing DSI sync ends with booleans, add an enum for the DSI
transfer mode. This is much cleaner way to handle the DSI syncs.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
To find out the DSI line buffer size we need to read HW registers. To
make it possible to do DSI configuration calculations without HW powered
up, store the line buffer size at DSI driver's probe.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We have a bunch of dsi functions that are used to do the basic
configuration for DSI. To simplify things, and to make sure we have all
the necessary information, create a single dsi config function, which
does the basic configuration.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
dsi_configure_dispc_clocks() stores dsi func clock into unsigned long
long, but it should really be just unsigned long. Fix this.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
On OMAP5 the DISPC channels and DSI PLLs are not connected the same way.
LCD2 on OMAP5 cannot use any DSI PLL as a source clock, but LCD3 can use
DSI2's PLL.
This patch fixes dpi_get_dsidev() by adding separate case for OMAP5 to
handle the difference.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Taal panel driver has support to set rotation and mirroring. However,
these features cannot be used without causing tearing, and are never
used. The code is just extra bloat, so let's remove it.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
During the initialization of the DSI protocol registers, we always set
the sources of all DSI channels to L4. However, we don't update the
value in the dsi_data, so we may end up with a different value in the
register and in the dsi_data, leading to DSI problems.
This patch fixes the issue by initializing also the channel source in
the dsi_data.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
We currently setup both DSI and DISPC related things when the DSI bus is
enabled. There's no need for DISPC related thing at that point, though,
but only later when the video output is enabled.
To make it possible to use the DSI bus before DISPC overlay manager is
selected, this patch moves DSI's DISPC initialization to
dsi_enable_video_output(), from omapdss_dsi_display_enable(). We also
move the selection of DISPC's LCD clock to dsi_enable_video_output.
This way there are no DISPC dependencies until the video output is
enabled.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
The DISPC channel used for each output is currently passed in panel
platform data from the board files.
To simplify this, and to make the panel drivers less dependent on OMAP,
this patch changes omapdss to resolve the channel independently. The
channel is resolved based on the OMAP version and, in case of DSI, the
DSI module id. This resolved channel is stored into a new field in
output, dispc_channel.
The few places where dssdev->channel was used are changed to use
output->recommended_channel. After this patch, dssdev->channel is
obsolete.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Add name field to omapdss's outputs so that in the following patches
panels refer to the output by their name. The name also helps debugging.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Move hdmi driver's output initialization a bit earlier, so that it
happens before hdmi panel init. In the future the hdmi panel will depend
on the output being ready.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
omap_dss_get_output() is a public function, but was missing
EXPORT_SYMBOL().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
dss_mgr_wait_for_vsync() uses dssdev->type to find out if the output is
going to VENC, HDMI, or something else. This creates a dependency on
dssdev, which we want to remove. The task is more logically done by
looking at the output to which the overlay manager in question is
connected to.
This patch changes the code to use output->id to find out which kind of
output we use.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Taal panel driver was originally meant to support multiple different DSI
command mode panel models. This never realized, and the multi-panel
support code is lying there unused, making the driver more difficult to
maintain.
This patch removes the multi-panel support from Taal driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
The role of struct omap_dss_device will change in the future. The exact
details of that are still a bit unclear. However, the less uses of
omap_dss_device we have, the easier the change is in the future.
This patch removes uses of omap_dss_device from dsi.c, where it can be
done easily. Mostly this means passing dsi platform device to functions,
instead of the omap_dss_device.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
The role of struct omap_dss_device will change in the future. The exact
details of that are still a bit unclear. However, the less uses of
omap_dss_device we have, the easier the change is in the future.
This patch removes uses of omap_dss_device from dpi.c, where it can be
done neatly, by, for example, passing some lower level parameter in
function parameters.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
struct omap_dss_device contains HDMI clock divisors. The idea is that the
board file can pass precalculated divisors to the display driver.
However, these divsors are no longer needed, as the omapdss driver can
calculate the divisors during runtime.
This patch removes the divisors from omap_dss_device, and their uses
from the hdmi driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
struct omap_dss_device contains DSS clock divisors. The idea is that the
board file can pass precalculated divisors to the display driver.
However, these divsors are no longer needed, as the omapdss driver can
calculate the divisors during runtime.
This patch removes the divisors from omap_dss_device, and their uses
from the dsi driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Forthcoming panel patches will change the panel drivers to use platform
data to pass panel's gpios to the panel driver. This patch adds the
required fields and platform data structs to the omap-panel-data.h file,
so that the board files can be changed independently of the panel driver
changes.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Structs for platform data of omapdss panels are found in headers in the
'include/video/' path. Board files populate these structs with platform
specific values, and the panel driver uses these to configure the panel.
Currently, each panel has it's own header in the above path. Move all the
omapdss panel platform data structs to a single header omap-panel-data.h.
This is useful because:
- All other omapdss panel drivers will be modified to use platform data. This
would lead to a lot of panel headers usable only by omapdss. A lot of these
platform data structs are trivial, and don't really need a separate header.
- Platform data would be eventually removed, and platform information would be
passed via device tree. Therefore, omapdss panel platform data structs are
temporary, and will be easier to remove if they are all in the same header.
- All board files will have to include the same header to configure a panel's
platform data, that makes the board files more consistent.
Signed-off-by: Archit Taneja <archit@ti.com>
Clock computations and handling are highly encoder specific, both in
the optimal clock selection and also in which clocks to use and when
sharing of clocks is possible.
So the best place to do this is somewhere in the encoders, with a
generic fallback for those encoders without special needs. To facility
this, add a pipe_config->clocks_set boolean.
This patch here is only prep work, it simply sets the computed clock
values in pipe_config->dpll, and uses that data in the hw clock
setting functions.
Haswell code isn't touched, simply because Haswell clocks work much
different and need their own infrastructure (with probably a
Haswell-specific config->ddi_clock substruct).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Now we can ditch the checks in the Haswell disable code.
v2: add support for Haswell
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need to be able to read out the hw state code for a bunch
of reasons:
- Correctly disabling boot-up/resume state.
- Pure paranoia.
Since not all of the pipe configuration is e.g. relevant for
fastboot (or at least we can allow some wiggle room in some
parameters, like the clocks), we need to add a strict_checking
parameter to intel_pipe_config_compare for fastboot.
For now intel_pipe_config_compare should be fully paranoid and
check everything that the hw state readout code supports. Which
for this infrastructure code is nothing.
I've gone a bit overboard with adding 3 get_pipe_config functions:
The ilk version will differ with the next patch, so it's not too
onerous.
v2: Don't check the hw config if the pipe is off, since an enabled,
but dpms off crtc will obviously have tons of difference with the hw
state.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The only exception left is is_cpu_edp in the haswell modeset code.
We need that to assign the cpu transcoder, but we might want to
move that eventually into the encoder, too.
\o/-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jesse Barnes noticed in his review of my DP cleanup series that
intel_edp_target_clock is now unused. Checking related code I've
noticed that also intel_edp_link_config is long unused.
Kill them both.
Wrt leaky eDP functions used in the common crtc code, the only thing
still left is intel_encoder_is_pch_edp. That one is just due to the
massive confusion between eDP vs. DP and port A vs. port D. Crtc code
should at most concern itself with the later, never with the former.
But that's material for another patch series.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need it in the fdi m_n computation, which nicely kills almost
all ugly special cases in there.
It looks like we also need this to handle 12bpc hdmi correctly.
Eventually it might be better to switch things around and put the
target clock into adjusted_mode->clock and create a new pipe_config
parameter for the port link clock.
v2: Add a massive comment in the code to explain this mess.
v3: s/dp_target_clock/pixel_target_clock in anticipation of the hdmi
use-case.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need a flag to designate dp encoders and the dp link m_n parameters
in the pipe config for that. And now that the pipe bpp computations
have been moved up and stored in the pipe config, too, we can do this
without losing our sanity.
v2: Rebased on top of Takashi Iwai's fix to (again) fix the target
clock handling for eDP. Luckily the new code is sane enough and just
does the right thing!
v3: Move ->has_dp_encoder to this patch (Jesse).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
There's a rather decent confusion going on around transcoder m_n
values. So let's clarify:
- All dp encoders need this, either on the pch transcoder if it's a
pch port, or on the cpu transcoder/pipe if it's a cpu port.
- fdi links need to have the right m_n values for the fdi link set in
the cpu transcoder.
To handle the pch vs transcoder stuff a bit better, extract transcoder
set_m_n helpers. To make them simpler, set intel_crtc->cpu_transcoder
als in ironlake_crtc_mode_set, so that gen5+ (where the cpu m_n
registers are all at the same offset) can use it.
Haswell modeset is decently confused about dp vs. edp vs. fdi. dp vs.
edp works exactly the same as dp (since there's no pch dp any more),
so use that as a check. And only set up the fdi m_n values if we
really have a pch encoder present (which means we have a VGA encoder).
On ilk+ we've called ironlake_set_m_n both for cpu_edp and for pch
encoders. Now that dp_set_m_n handles all dp links (thanks to the
pch encoder check), we can ditch the cpu_edp stuff from the
fdi_set_m_n function.
Since the dp_m_n values are not readily available, we need to
carefully coax the edp values out of the encoder. Hence we can't (yet)
kill this superflous complexity.
v2: Rebase on top of the ivb fdi B/C check patch - we need to properly
clear intel_crtc->fdi_lane, otherwise those checks will misfire.
v3: Rebased on top of a s/IS_HASWELL/HAS_DDI/ patch from Paulo Zanoni.
v4: Drop the addition of has_dp_encoder, it's in the wrong patch (Jesse).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge tag 'v3.9-rc5' into drm-intel-next-queued
Backmerge Linux 3.9-rc5 since I want to merge a few dp clock cleanups
for -next, but they will conflict all over the place with
commit 9d1a455b0c
Author: Takashi Iwai <tiwai@suse.de>
Date: Mon Mar 18 11:25:36 2013 +0100
drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
from -fixes.
Conflicts:
drivers/gpu/drm/i915/intel_dp.c: Simply adjacent lines changed.
drivers/gpu/drm/i915/intel_panel.c: A field rename in -next
conflicts with a bugfix in -fixes. Take the version from
-fixes and apply the rename.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The active output is only the currently selected one, which does not
imply that it's actually enabled. Since we don't use the sdvo encoder
side dpms support, we need to check whether the chip-side sdvo port is
enabled instead.
v2: Fix up Bugzilla links.
v3: Simplify logic a bit (Chris).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=60138
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63031
Cc: Egbert Eich <eich@pdx.freedesktop.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Egbert Eich <eich@pdx.freedesktop.org> (v2)
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull networking fixes from David Miller:
1) Fix VSOCK layer handling of context ID changes, from Reilly Grant.
2) Now that we have a synchronize_net() in netdev_rx_handler_unregister(),
we can't let any call sites hold locks. Unfortunately bonding does,
so we have to drop the rwlock there a little bit earlier, fix from
Veaceslav Falico.
3) MAC address setting loop exits one iteration too early in mlx4
driver, from Yan Burman.
4) Restore ipv6 routes properly upon ifdown/ifup of loopback, from
Balakumaran Kannan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
VSOCK: Handle changes to the VMCI context ID.
net IPv6 : Fix broken IPv6 routing table after loopback down-up
cbq: incorrect processing of high limits
net/mlx4_en: Fix setting initial MAC address
bonding: get netdev_rx_handler_unregister out of locks
A small collection of fixes. The most important ones are those from
Stephen and Lars-Peter both of which fix cache issues that have been
lurking for a while but not manifesting noticably enough for anyone to
report them.
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Merge tag 'regmap-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"A small collection of fixes. The most important ones are those from
Stephen and Lars-Peter both of which fix cache issues that have been
lurking for a while but not manifesting noticably enough for anyone to
report them."
* tag 'regmap-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: async: Add missing return
regmap: don't corrupt work buffer in _regmap_raw_write()
regmap: cache Fix regcache-rbtree sync
regmap: Initialize `map->debugfs' before regcache
Pull DRM fixes from Dave Airlie:
"Two core fixes, both regressions, along with some intel and some
nouveau fixes for regressions and oopses"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm: correctly restore mappings if drm_open fails
drm/nouveau: fix NULL ptr dereference from nv50_disp_intr()
drm/nouveau: fix handling empty channel list in ioctl's
drm: don't unlock in the addfb error paths
drm/i915: Fix build failure
drm/i915: Be sure to turn hsync/vsync back on at crt enable (v2)
drm/i915: duct-tape locking when eDP init fails
Pull MIPS fixes from Ralf Baechle:
"A collection of fixes pretty much across the MIPS code. Even the
change to include/linux/signal.h by David Howells' 2a1486981c ("Fix
breakage in MIPS siginfo handling") should be considered MIPS-specific
as it touches an ifdefed segment that is only relevant to MIPS and
which unfortunately can't be made to go away entirely."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
Fix breakage in MIPS siginfo handling
Revert "MIPS: BCM63XX: Call board_register_device from device_initcall()"
MIPS: BCM63XX: Make nvram checksum failure non fatal
MIPS: Fix code generation for non-DSP capable CPUs
MIPS: Fix inconsistent formatting inside /proc/cpuinfo
MIPS: SEAD3: Enable LL/SC.
MIPS: Get rid of CONFIG_CPU_HAS_LLSC again
MIPS: Add dependencies for HAVE_ARCH_TRANSPARENT_HUGEPAGE
MIPS: VR4133: Fix probe for LL/SC.
MIPS: Fix logic errors in bitops.c
MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S
MIPS: compat: Return same error ENOSYS as native for invalid operation.
If first drm_open fails, the error-handling path will
incorrectly restore inode's mapping to NULL. This can
cause the crash later on. Fix by separately storing
away mapping pointers that drm_open can touch and
restore each from its own respective variable if the
call fails.
Fixes: https://bugzilla.novell.com/show_bug.cgi?id=807850
(thanks to Michal Hocko for investigating investigating and
finding the root cause of the bug)
Reference:
http://lists.freedesktop.org/archives/dri-devel/2013-March/036564.html
v2: Use one variable to store file and inode mapping
since they are the same at the function entry.
Fix spelling mistakes in commit message.
v3: Add reference to the original bug report.
Reported-by: Marco Munderloh <munderl@tnt.uni-hannover.de>
Tested-by: Marco Munderloh <munderl@tnt.uni-hannover.de>
Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
