In preparation for adding PHY operations to handle RX SENSE and HPD,
group all the PHY interrupt setup code in a single location and extract
it to a separate function.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
[narmstrong: renamed dw_hdmi_fb_registered to dw_hdmi_setup_i2c]
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Lookup format using virtio_gpu_translate_format()
instead of hardcoding it. Fixes xorg display on
bigendian guests (i.e. ppc64).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170403070845.10793-3-kraxel@redhat.com
Main changes include:
* Add support for render nodes.
* Refactor omapdss code to allow multiple DISPC implementations. This is pre-work for DSS6 support.
* Fix replication logic bug, which caused RGB565 fb to be shown too dark on a 24bit display.
* Improve detection of display stack readiness, which should remove the probe order issues.
* Link panel-dpi with its backlight, so that they are turned on/off in sync.
* Fix possibly incorrect setup of sync and data-enable signals.
* Get rid of DRM_OMAP_NUM_CRTCS config option.
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Merge tag 'omapdrm-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
omapdrm changes for 4.12
Main changes include:
* Add support for render nodes.
* Refactor omapdss code to allow multiple DISPC implementations. This is pre-work for DSS6 support.
* Fix replication logic bug, which caused RGB565 fb to be shown too dark on a 24bit display.
* Improve detection of display stack readiness, which should remove the probe order issues.
* Link panel-dpi with its backlight, so that they are turned on/off in sync.
* Fix possibly incorrect setup of sync and data-enable signals.
* Get rid of DRM_OMAP_NUM_CRTCS config option.
* tag 'omapdrm-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (34 commits)
drm/omap: Major omap_modeset_init() cleanup
drm/omap: Remove the obsolete #define omap_plane _omap_plane hack
drm/omap: Fix one ugly indentation style break left by coccinelle
drm/omap: Rename enum omap_plane to enum omap_plane_id
drm/omap: Get rid of DRM_OMAP_NUM_CRTCS config option
drm/omap: fix crash on module unload
drm/omap: use drm_atomic_helper_shutdown()
drm/omap: fix display SYNC/DE flags
drm/omap: dispc: improve debug print of display flags
drm/omap: displays: panel-dpi: Support for handling backlight devices
drm/omap: poll only connectors where the connect/disconnect can be checked
drm/omap: display: Add displays in sorted order to the panel_list
drm/omap: Use omapdss_stack_is_ready() to check that the display stack is up
drm/omap: dss: Support for detecting display stack readiness
drm/omap: dss: Functions to check components in the display/output list
drm/omap: fix replication logic
drm/omap: remove unused dispc_wb_enable & dispc_wb_is_enabled
drm/omap: remove all EXPORT_SYMBOLs from dispc.c
drm/omap: use dispc_ops
drm/omap: fill dispc_ops
...
Add documentation for added Bus Formats to describe RGB and YUV formats used
as input to the Synopsys DesignWare HDMI TX Controller.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1491230558-10804-4-git-send-email-narmstrong@baylibre.com
In order to describe the RGB and YUV bus formats used to feed the
Synopsys DesignWare HDMI TX Controller, add missing formats to the
list of Bus Formats.
Documentation for these formats is added in a separate patch.
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1491230558-10804-3-git-send-email-narmstrong@baylibre.com
Cleanup overly complex omap_modeset_init(). The function is trying to
support many unusual configuration, that have never been tested and
are not supported by other parts of the dirver.
After cleanup the init function creates exactly one connector,
encoder, crtc, and primary plane per each connected dss-device. Each
connector->encoder->crtc chain is expected to be separate and each
crtc is connect to a single dss-channel. If the configuration does not
match the expectations or exceeds the available resources, the
configuration is rejected.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Remove the obsolete "#define omap_plane _omap_plane" hack and other
related hacks to get around the enum omap_plane colliding with struct
omap_plane.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Fix one ugly indentation style break left by the previous coccilnelle
patch.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The enum omap_plane conflicted with the same struct name for omapdrm
plane private data. This rename should solve the conflict.
The rename was implement with this very simple coccinelle patch:
------------------------
@@
@@
enum
-omap_plane
+omap_plane_id
------------------------
The patch was applied like this:
spatch --sp-file <cocci_file> --all-includes --in-place --dir drivers/gpu/drm/omapdrm
The above patch did not rename the actual enum definition. That was
added manually on top of the spatch changes.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Allocate one CRTC for each connected output and get rid of
DRM_OMAP_NUM_CRTCS config option. We still can not create more CRTCs
than we have DSS display managers. We also reserve one overlay per
CRTC for primary plane so we can not have more CRTCs than we have
overlays either.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
When unloading omapdrm we get a NULL pointer deref in
omap_drm_irq_uninstall(). This is caused by:
967dd48417 ("drm: remove
drm_vblank_no_hw_counter assignment from driver code")
We shut down all the crtcs at unload time before calling
omap_drm_irq_uninstall, so the code in omap_drm_irq_uninstall() is
unnecessary and can be removed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Use drm_atomic_helper_shutdown() to ensure that all crtcs are disabled
when unloading the driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
At the moment VSYNC/HSYNC/DE high/low flags set by the panel/encoder
drivers get lost when the videotimings are translated to DRM's
videomode, as DRM's mode does not have corresponding flags.
DRM has bus-flags for this purpose, and while it lacks a few flags at
the moment, it should be used here. However, until we rewrite omapdrm's
device model, using bus-flags is rather difficult.
As a short term fix, this patch makes sure that every time the videomode
is set in omap_crtc_mode_set_nofb(), the driver asks for the SYNC/DE
flags from the panel/encoder drivers, and thus we get the correct flags
into use.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of printing 0/1 for display flags like vsync high/low, use a
tri-state print (-1/0/1) to indicate the "undefined" state.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The associated backlight device can be configured via DT by providing the
phandle to the device.
If the backlight device is configured, the driver can manage the backligt
along with the panel's power state, iow it can turn on the backlight when
the panel is enabled and turn it off when the panel is disabled.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
When the connector associated detect callback is not provided, we can not
detect if the display is connected or disconnected. These displays do not
support hot plug, they are always connected. Let DRM know that connectors
w/o detect callback should not be polled.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Keep the panel_list ordered according to aliases. The DRM connectors will
be created following the panel_list. By keeping the list ordered the DRM
connectors will be created in the same order regardless of the driver
probe order.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of 'guessing' based on aliases of the status of the DSS drivers,
use the new interface to check that all needed drivers are loaded.
In this way we can be sure that all needed drivers are loaded so it is
safe to continue the probing of omapdrm.
This method will allow the omapdrm to be probed 'headless', without
outputs.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
When omapdss is loaded (all core components are in place) create a list of
devices used in the display graph. This list later can be used by omapdrm
via the omapdss_stack_is_ready() function to check that these components
are loaded. Based on this information, omapdrm can defer probe in case when
the omapdss stack is not ready yet.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The functions can be used to check a component (by it's of_node) if it is
part of the omapdss display or output list. If the component is found, it
means that the driver is loaded.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
DSS uses "replication logic" to convert color components from smaller
bit widths to bigger bit widths. Without replication logic, the color
component would be shifted and the least significant bits would be left
at 0, whereas with replication logic, the least significat bits will be
filled with the most significant bit.
For some reason omapdrm leaves replication logic always to off, which,
in the most common case, means that showing 16-bit RGB colors on 24-bit
display gives a bit darker colors than expected.
The reset value of the replication logic bit is enabled, and it should
always be set, as there's no practical reason to disable it. This patch
removes the option to disable it from omapdrm, and always sets it to
enabled in dispc.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
omapdrm now uses dispc_ops instead of direct function calls so we can
remove all EXPORT_SYMBOLs from dispc. Most of the functions can also be
made static, but a few are used outside dispc.c.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Change omapdrm to get dispc_ops and use that to call the dispc functions
instead or direct function calls.
The change is very straightforward.
The only problem was in omap_crtc_init() which calls pipe2vbl(crtc), and
at that point of time the crtc->dev link, which is used to get the
dispc_ops, has not been set up yet. This patch makes omap_crtc_init()
skip the call to pipe2vbl() and instead calls
dispc_ops->mgr_get_vsync_irq() directly.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This patch changes the current omapdss driver to fill a dispc_ops struct
and set it to omapdss-base.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We want to change the dispc API from plain functions to a struct with
functions pointers, so that omapdrm can call either omapdss or omapdss6
depending on the platform.
This patch adds 'struct dispc_ops' and adds functions to omapdss-base
to set and get the ops.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
omapdrm still uses a few non-dispc functions: dss_feat_get_num_mgrs(),
dss_feat_get_num_ovls() and dss_feat_get_supported_color_modes(). We
want to provide omapdrm a single dispc_ops function pointer struct so
that omapdrm will use either the current omapdss or the new omapdss6
driver depending on the platform.
Those three functions are really dispc functions, but are located in the
dss_features.c for legacy reasons.
This patch adds similar functionss to the dispc, and changes omapdrm to
use those new functions. Underneath the functions still call the
functions from dss_feature.c.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This patch moves the common parts of omapdss to omapdss-base so that
both the current omapdss driver and the new omapdss6 driver can use
them.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
display.c uses dsi_get_pixel_size() which is implemented in the DSI
driver, and we won't have that in the omapdss-base module, to which we
want to move display.c
This patch changes display.c not to use dsi_get_pixel_size(). The call
can be replaced with a simple check for OMAP_DSS_DSI_FMT_RGB565.
We can also make dsi_get_pixel_size() static as it's no longer used
outside dsi.c.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We don't have omapdss's custom error printing functions in the common
omapdss-base module, to which we want to move output.c.
This patch changes output.c to use dev_err instead of DSSERR so that it
doesn't depend on DSSERR.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
omapdss_is_initialized() is used to find out if omapdss has been probed
successfully. This patch moves the related code to the common
omapdss-base module, so that the same support will be there for both
omapdss and omapdss6.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We are working towards enabling omapdss6, which will consists of a new
dss, dispc and dpi drivers. omapdss6 will be a new module. The panel,
encoder and omapdrm will need to use either the current omapdss driver
or the new omapdss6 driver, depending on the platform.
This will be implemented with a common base module and function
pointers.
This patch adds a skeleton omapdss-base.ko module, to which we'll be
moving common dss functionality like registration of the panels.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
While implementing writeback support, odd behavior of WBDELAYCOUNT was
observed with the combination of WB capture and HDMI. The result of the
debugging was that the HDMI sync polarities are not set correctly.
The current code sets the sync polarities going from HDMI WP to DISPC
according to the video mode used, which seems to work normally fine, but
causes problems with WB as WB expects the syncs to be active-high.
This patch changes the HDMI sync polarities so that the DISPC always
gets active-high syncs from HDMI WP, and the HDMI core gets sync
polarities according to the used video mode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Add support for render nodes in omap driver and allow required
ioctls to be accessible via render nodes.
This enables unprivileged clients to allocate resources like GEM buffers
for rendering their content into. Mode setting (KMS ioctls) is not
allowed using render nodes. These buffers are then shared with
a previleged process (e.g compositor) that has mode setting access.
An example of this use case is Android where the hardware composer is
the only master and has mode setting access. Every other client then
uses render node(e.g /dev/dri/renderD128 to allocate and use its buffers.
Signed-off-by: Hemant Hariyani <hemanthariyani@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The clock source selection for the LCD outputs is too hardcoded at the
moment. For example, LCD3 is set to use PLL2_1, and PLL2 doesn't exist
on DRA72x SoCs.
There are quite many ways to configure the clocks, even using HDMI PLL
for LCD outputs, but enabling full configuration of the clocks is rather
tricky.
This patch improves the situation a bit by checking if the PLL about to
be used exists, and if not, tries another one.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
mode_config's min_width and min_height are both set to 32, which is
overly restrictive.
The real limits depend on whether we're configuring a crtc or a plane,
but a limit of 8x2 is safe for both cases.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The driver only uses even dividers for hsdiv when pclk >= 100MHz, as odd
dividers can create uneven duty cycle. However, while this holds true
for some dividers like DISPC's LCK and PCK dividers, it is not actually
true for hsdiv.
hsdiv always produces even duty cycle, so the constraint can be removed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The current driver doesn't expose any of the CRTC HW properties like
background color or transparency key, and sets them at CRTC enable time.
Refactor this into a separate function and call that function from
omap_crtc_atomic_flush(). This is the behavior we want when the
properties can be configured, so this patch makes it easier to add
patches later which implement those properties.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
DRA7 errata i886 (FPDLink PLL Unlocks With Certain SoC PLL M/N Values)
says that FPDLink is sensitive to jitter on the vout clock, and that low
PLL M and N values result in more jitter than high M and N values.
This patch implements a workaround for the problem by changing the PLL
setup to search for clocks starting from high M and N values, instead of
low values. This should not cause any functional change, and only
reduces the jitter.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
drm-misc for 4.12:
Core:
- Removed some fb subsampling dimension checks from core (Ville)
- Some MST slot cleanup (Dhinakaran)
- Extracted drm_debugfs.h & drm_ioctl.h from drmP.h (Daniel)
- Added drm_atomic_helper_shutdown() to compliment suspend/resume counterparts
(Daniel)
- Pipe context through legacy modeset to remove legacy_backoff nasties (Daniel)
- Cleanups around vblank as well as allowing lockless counter reads (Chris W.)
- VGA Switcheroo added to MAINTAINERS with Lukas Wunner as reviewer (Lukas)
Drivers:
- Enhancements to rockchip driver probe (Jeffy) and dsi (Chris Z.)
- Thunderbolt external GPU awareness added (Lukas)
* tag 'drm-misc-next-2017-03-31' of git://anongit.freedesktop.org/git/drm-misc: (63 commits)
apple-gmux: Don't switch external DP port on 2011+ MacBook Pros
drm/nouveau: Don't register Thunderbolt eGPU with vga_switcheroo
drm/amdgpu: Don't register Thunderbolt eGPU with vga_switcheroo
drm/radeon: Don't register Thunderbolt eGPU with vga_switcheroo
PCI: Recognize Thunderbolt devices
MAINTAINERS: Add Lukas Wunner as reviewer for vga_switcheroo
drm: Fix locking gotcha in page_flip ioctl
drm: Clarify the role of plane_state argument to drm_simple update().
drm: Clear e after kfree in drm_mode_page_flip_ioctl
drm: Convert cmpxchg(bool) back to a two step operation
drm/bridge: ti-tfp410: support hpd via gpio
drm: use .hword to represent 16-bit numbers
Revert unrelated part of "drm: simplify the locking in the GETCRTC ioctl"
drm: Fixup failure paths in drm_atomic_helper_set_config
drm: Peek at the current counter/timestamp for vblank queries
drm: Refactor vblank sequence number comparison
drm: vblank cannot be enabled if dev->irq_enabled is false
drm: Mark up accesses of vblank->enabled outside of its spinlock
drm: Make the decision to keep vblank irq enabled earlier
drm/atomic-helper: Remove the backoff hack from set_config
...
Reordering of the device nodes based on unit address resulted in
ge_b850v3_lvds_attach() being called before
ge_b850v3_lvds_ptr->stdp4028_i2c was populated.
This patch moves the drm bridge initialization from
ge_b850v3_lvds_init() to stdp4028_ge_b850v3_fw_probe() ensuring that
ge_b850v3_lvds_ptr->stdp4028_i2c is properly populated.
Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170330081928.8537-1-peter.senna@collabora.com
Couple of minor fixes for 4.11
- array bound fix for __get_unmap_pool()
- cyclic period splitting for bcm2835
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Merge tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"A couple of minor fixes for 4.11:
- array bound fix for __get_unmap_pool()
- cyclic period splitting for bcm2835"
* tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
dmaengine: bcm2835: Fix cyclic DMA period splitting
Pull x86 fixes from Thomas Gleixner:
"This update provides:
- prevent KASLR from randomizing EFI regions
- restrict the usage of -maccumulate-outgoing-args and document when
and why it is required.
- make the Global Physical Address calculation for UV4 systems work
correctly.
- address a copy->paste->forgot-edit problem in the MCE exception
table entries.
- assign a name to AMD MCA bank 3, so the sysfs file registration
works.
- add a missing include in the boot code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Include missing header file
x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs
x86/build: Mostly disable '-maccumulate-outgoing-args'
x86/mm/KASLR: Exclude EFI region from KASLR VA space randomization
x86/mce: Fix copy/paste error in exception table entries
x86/platform/uv: Fix calculation of Global Physical Address
Pull scheduler fixes from Thomas Gleixner:
"This update provides:
- make the scheduler clock switch to unstable mode smooth so the
timestamps stay at microseconds granularity instead of switching to
tick granularity.
- unbreak perf test tsc by taking the new offset into account which
was added in order to proveide better sched clock continuity
- switching sched clock to unstable mode runs all clock related
computations which affect the sched clock output itself from a work
queue. In case of preemption sched clock uses half updated data and
provides wrong timestamps. Keep the math in the protected context
and delegate only the static key switch to workqueue context.
- remove a duplicate header include"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/headers: Remove duplicate #include <linux/sched/debug.h> line
sched/clock: Fix broken stable to unstable transfer
sched/clock, x86/perf: Fix "perf test tsc"
sched/clock: Fix clear_sched_clock_stable() preempt wobbly
