Our components may still be using the DRM device driver (if only to
access our driver's private data), so make sure to unbind them before
the final drm_dev_put.
Also release our reserved memory after component unbind instead of
before to match reverse creation order.
Fixes: f5a9ed867c ("drm/sun4i: Fix component unbinding and component master deletion")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424090413.6918-1-paul.kocialkowski@bootlin.com
For our component-backed driver to be properly removed, we need to
delete the component master in sun4i_drv_remove and make sure to call
component_unbind_all in the master's unbind so that all components are
unbound when the master is.
Fixes: 9026e0d122 ("drm: Add Allwinner A10 Display Engine support")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418132727.5128-4-paul.kocialkowski@bootlin.com
Our sun4i_drv_unbind gets the drm device using dev_get_drvdata.
However, that driver data is never set in sun4i_drv_bind.
Set it there to avoid getting a NULL pointer at unbind time.
Fixes: 9026e0d122 ("drm: Add Allwinner A10 Display Engine support")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418132727.5128-3-paul.kocialkowski@bootlin.com
A call to drm_atomic_helper_shutdown is required to properly release
the internal references taken by the core and avoid warnings about
leaking objects. Add it since it was missing.
Fixes: 9026e0d122 ("drm: Add Allwinner A10 Display Engine support")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418132727.5128-2-paul.kocialkowski@bootlin.com
There are two problems here:
1. Not all clk_data->hws[] need to be initialized, depending on various
configured quirks. This leads to NULL ptr deref in
clk_hw_unregister_gate() in sun8i_tcon_top_unbind()
2. If there is error when registering the clk_data->hws[],
err_unregister_gates error path will try to unregister
IS_ERR()=true (invalid) pointer.
For problem (1) I have this stack trace:
Unable to handle kernel NULL pointer dereference at virtual
address 0000000000000008
Call trace:
clk_hw_unregister+0x8/0x18
clk_hw_unregister_gate+0x14/0x28
sun8i_tcon_top_unbind+0x2c/0x60
component_unbind.isra.4+0x2c/0x50
component_bind_all+0x1d4/0x230
sun4i_drv_bind+0xc4/0x1a0
try_to_bring_up_master+0x164/0x1c0
__component_add+0xa0/0x168
component_add+0x10/0x18
sun8i_dw_hdmi_probe+0x18/0x20
platform_drv_probe+0x3c/0x70
really_probe+0xcc/0x278
driver_probe_device+0x34/0xa8
Problem (2) was identified by head scratching.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405233048.3823-1-megous@megous.com
Currently resolutions with pixel clock higher than 340 MHz don't work
with H6 HDMI controller. They just produce a blank screen.
Limit maximum pixel clock rate to 340 MHz until scrambling is supported.
Cc: stable@vger.kernel.org # 5.0
Fixes: 40bb9d3147 ("drm/sun4i: Add support for H6 DW HDMI controller")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190324190609.32721-1-jernej.skrabec@siol.net
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Merge v5.0-rc7 into drm-next
Backmerging for nouveau and imx that needed some fixes for next pulls.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Since the DPHY rework, one error path doesn't set the return error code
before jumping to its error label, which in turns make gcc (rightfully)
complain about the variable holding the error code being uninitialized.
Fix this.
Fixes: bb3b6fcb68 ("sun6i: dsi: Convert to generic phy handling")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190208090540.19626-1-maxime.ripard@bootlin.com
When initializing clocks, a reference to the TCON channel 0 clock is
obtained. However, the clock is never prepared and enabled later.
Switching from simplefb to DRM actually disables the clock (that was
usually configured by U-Boot) because of that.
On the V3s, this results in a hang when writing to some mixer registers
when switching over to DRM from simplefb.
Fix this by preparing and enabling the clock when initializing other
clocks. Waiting for sun4i_tcon_channel_enable to enable the clock is
apparently too late and results in the same mixer register access hang.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190131132550.26355-1-paul.kocialkowski@bootlin.com
The A23's display pipeline is similar to the A33. Differences include:
- Display backend supports larger layers, 8192x8192 instead of 2048x2048
- TCON has DMA input
- There is no SAT module packed in the display backend
Add support for the display pipeline and its components.
As the MIPI DSI output device is not officially documented, and there
are no A23 reference devices to test it, it is not covered by this
patch.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190125032314.20915-7-wens@csie.org
In some cases, such as running a new kernel with an old device tree that
has the frontend disabled, the backend's matching frontend might be
unavailable.
When this happens, the layers should only declare support for formats
that the backend support. This partially reverts commit 1c29d263f6
("drm/sun4i: Rename sun4i_backend_layer_formats to sun4i_layer_formats")
by bringing back sun4i_backend_layer_formats, and passing it to
drm_universal_plane_init, while also dropping the modifiers list,
in the event no frontend is available.
Fixes: b636d3f97d ("drm/sun4i: frontend: Add support for the BGRX8888 input format")
Fixes: 9afe52d54b ("drm/sun4i: frontend: Add support for semi-planar YUV input formats")
Fixes: 8c8152bf4d ("drm/sun4i: frontend: Add support for planar YUV input formats")
Fixes: b2ddf277ab ("drm/sun4i: layer: Add tiled modifier support and helper")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190125032314.20915-6-wens@csie.org
We might want to use the backend pointer from DRM callbacks that get
called within drm_universal_plane_init(), such as the
.format_mod_supported callback.
Move the assignment of the layer's backend pointer to right after the
structure is allocated.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190125032314.20915-5-wens@csie.org
The display backend does not support BGRX8888. There is also no trace
of this in the original list of supported formats before the commit
b636d3f97d ("drm/sun4i: frontend: Add support for the BGRX8888 input
format"). Nor do the backend configuration helpers handle this format.
Remove BGRX8888 from list of supported formats by the backend.
Fixes: 3d4265f89d ("drm/sun4i: backend: Add a helper and a list for supported formats")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190125032314.20915-4-wens@csie.org
Having the probe helper stuff (which pretty much everyone needs) in
the drm_crtc_helper.h file (which atomic drivers should never need) is
confusing. Split them out.
To make sure I actually achieved the goal here I went through all
drivers. And indeed, all atomic drivers are now free of
drm_crtc_helper.h includes.
v2: Make it compile. There was so much compile fail on arm drivers
that I figured I'll better not include any of the acks on v1.
v3: Massive rebase because i915 has lost a lot of drmP.h includes, but
not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h
there was still one, which this patch largely removes. Which means
rolling out lots more includes all over.
This will also conflict with ongoing drmP.h cleanup by others I
expect.
v3: Rebase on top of atomic bochs.
v4: Review from Laurent for bridge/rcar/omap/shmob/core bits:
- (re)move some of the added includes, use the better include files in
other places (all suggested from Laurent adopted unchanged).
- sort alphabetically
v5: Actually try to sort them, and while at it, sort all the ones I
touch.
v6: Rebase onto i915 changes.
v7: Rebase once more.
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: CK Hu <ck.hu@mediatek.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: virtualization@lists.linux-foundation.org
Cc: etnaviv@lists.freedesktop.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: spice-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-tegra@vger.kernel.org
Cc: xen-devel@lists.xen.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch
Although TMDS clock is required for HDMI to properly function,
nobody called clk_prepare_enable(). This fixes reference counting
issues and makes sure clock is running when it needs to be running.
Due to TDMS clock being parent clock for DDC clock, TDMS clock
was turned on/off for each EDID probe, causing spurious failures
for certain HDMI/DVI screens.
Fixes: 9c5681011a ("drm/sun4i: Add HDMI support")
Signed-off-by: Priit Laes <priit.laes@paf.com>
[Maxime: Moved the TMDS clock enable earlier]
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190122073232.7240-1-plaes@plaes.org
This adds the appropriate device-tree compatible for hooking frontend
support for the A20. Since the hardware is very similar to the A10, it
shares the same quirks (which were already introduced).
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-24-paul.kocialkowski@bootlin.com
This adds the appropriate device-tree compatible and quirk data for
hooking frontend support for the A20. It supports the FIR coefficients
ready bit but not the access control bit. It also takes different phase
values than the A33 for these coefficients.
The compatible is already used in the A10 device-tree and already
documented in the device-tree bindings.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-23-paul.kocialkowski@bootlin.com
The COEF_RDY bit is used to tell the hardware that new FIR filters
coefficients have been written to the registers and that the hardware
should take them into account starting next frame.
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-20-paul.kocialkowski@bootlin.com
The ACCESS_CTRL bit is not found on all the variants of the frontend, so
let's introduce a structure that will hold whether or not we need to set
it, and associate it with the compatible.
This will be extended for further similar quirks later on.
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-19-paul.kocialkowski@bootlin.com
Unlike what is currently being done, the ACCESS_CTRL bit documentation asks
that this bit should be set before modifying any register. The code in the
BSP also does this, so make sure we do this as well.
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-18-paul.kocialkowski@bootlin.com
This introduces a list of supported modifiers for the driver, that
includes the Allwinner tiled modifier, as well as a format_mod_supported
callback.
The callback uses both the backend and frontend helpers to indicate
per-format modifier support (including for the linear modifier).
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-16-paul.kocialkowski@bootlin.com
This introduces a helper to check whether a frontend input format
supports tiling mode. This helper is used when tiling is requested in
the frontend format support helper.
Only semiplanar and planar YUV formats are supported by the hardware.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-15-paul.kocialkowski@bootlin.com
This introduces stride and offset configuration for the VPU tiling mode.
Stride is calculated differently than it is for linear formats and an
offset is calculated, for which new register definitions are introduced.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-14-paul.kocialkowski@bootlin.com
This introduces the data input mode definitions for the tiled YUV mode,
that are used in the input mode helper if tiling is requested.
The modifier is passed to the helper from the framebuffer to determine
if tiling is requested.
Only semiplanar and planar YUV formats are supported for tiling mode.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-13-paul.kocialkowski@bootlin.com
Planar YUV formats come with 3 distinct planes, which requires
configuring the frontend line stride and address registers for the
third plane.
Our hardware only supports the YUV planes order and in order to support
formats with a YVU plane order, a helper is introduced to indicate
whether to invert the address of the two chroma planes.
Missing definitions for YUV411 and YUV444 input format configuration are
also introduced as support is added for these formats. For the input
sequence part, no configuration is required for planar YUV formats so
zero is returned in that case.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-11-paul.kocialkowski@bootlin.com
Semi-planar YUV formats use two distinct planes, one for luminance and
one for chrominance. To add support for them, we need to configure the
second line stride and buffer address registers to setup the second YUV
plane.
New definitions are introduced to configure the input format register
for the YUV420 and YUV422 semi-planar formats.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-10-paul.kocialkowski@bootlin.com
This introduces support for packed YUV formats with 4:2:2 sampling using
the frontend. Definitions are introduced for the data format and pixel
sequence input format register values.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-9-paul.kocialkowski@bootlin.com
In prevision of adding support for YUV formats, set the YUV to RGB
colorspace conversion coefficients if required and don't bypass the
CSC engine when converting.
The BT601 coefficients from the A33 BSP are copied over from the backend
code. Because of module inter-dependency, we can't have the frontend use
these coefficients from the backend directly.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-8-paul.kocialkowski@bootlin.com
Both the backend and the frontend need the BT.601 CSC coefficients for
YUV to RGB conversion. Since the backend has a dependency on the
frontend (and not the other way round), move the coefficients there
so that both can access them without having to duplicate them.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-7-paul.kocialkowski@bootlin.com
Since all the RGB input formats have the same value for the DATA_FMT
field of the INPUT_FMT register, we can group them when the format is
known to be RGB. Here, we assume that a non-YUV format is RGB, because
the hardware does not support any other colorspace than RGB and YUV.
Use the DRM format info structure to check whether the format uses a
YUV colorspace.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-6-paul.kocialkowski@bootlin.com
The helper returning the input mode needs to know the number of planes
for the provided format. Passing the fourcc requires iterating through
the format info list in order to return the number of planes.
Pass the DRM format info structure directly instead to all helpers
related to configuring the input format, since it's available to the
caller. Also rename the input format in the caller function to keep
things consistent.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-5-paul.kocialkowski@bootlin.com
Checking for the number of planes is not sufficient to en ensure that
the format is a packed YUV422.
Use explicit fourcc helpers for the check instead.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-4-paul.kocialkowski@bootlin.com
The device node iterators perform an of_node_get on each
iteration, so a jump out of the loop requires an of_node_put.
Remote and port also have augmented reference counts, so drop them
on each iteration and at the end of the function, respectively.
Remote is only used for the address it contains, not for the
contents of that address, so the reference count can be dropped
immediately.
The semantic patch that fixes the first part of this problem is
as follows (http://coccinelle.lip6.fr):
// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@
for_each_available_child_of_node(root, child) {
... when != of_node_put(child)
when != e = child
+ of_node_put(child);
? break;
...
}
... when != child
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1547369264-24831-5-git-send-email-Julia.Lawall@lip6.fr
Make life easier for drivers by simply passing the connector
to drm_hdmi_avi_infoframe_from_display_mode() and
drm_hdmi_avi_infoframe_quant_range(). That way drivers don't
need to worry about is_hdmi2_sink mess.
v2: Make is_hdmi2_sink() return true for sil-sii8620
Adapt to omap/vc4 changes
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-1-ville.syrjala@linux.intel.com
To prepare the introduction of tiled mode support, pass the framebuffer
format modifier to the helpers dealing with format support.
Since only linear mode is supported for now, add corresponding checks in
each helper.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-33-paul.kocialkowski@bootlin.com
Our hardware requires the pitch to be an even number when using YUV
formats with the frontend. Implement a driver-specific callback for GEM
dumb allocation that sets the pitch accordingly.
Since only the bpp is passed (and not the format), we cannot really
distinguish if this alignment is really required. Since it doesn't hurt
to align the pitch anyway, always do it.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-30-paul.kocialkowski@bootlin.com
The frontend comes with two "channels", that can be configured
independently. When used in YUV mode, the first channel (CH0) represents
the luminance component while the second channel (CH1) represents the
chrominance. In RGB mode, both have to be configured the same way.
Use variables (with the YUV terminology) for each channel's
dimensions, calculating the chroma dimensions from the luma dimensions
and the sub-sampling factors from the format description.
Since the configured size only has pixel precision, the fractional
fixed-point part of the source size is dropped for both components to
ensure that the scaling factors are accurate.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-26-paul.kocialkowski@bootlin.com
The values in the BT601 YUV to RGB colorspace translation are not
simply coded as multiples, but rather as fixed-point signed fractional
values on a given number of bits. Add an explanation about that.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-24-paul.kocialkowski@bootlin.com
This introduces support for the BGRX8888 input format for the frontend,
with its associated pixel sequence value definition. Other fields are
already configured correctly as they no longer depend on the format's
fourcc directly.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-22-paul.kocialkowski@bootlin.com
Use the number of planes associated with the DRM format to determine the
input mode configuration instead of the format iteself. This way, the
helper can be used for all packed formats without future changes.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-20-paul.kocialkowski@bootlin.com
This introduces proper definitions for the input and output format
configuration registers instead of a macro and raw values in the code,
with the intent to increase code readability and reduce indirections.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-19-paul.kocialkowski@bootlin.com
This introduces new helpers for retrieving the input data mode and pixel
sequence register field values based on the DRM format instead of
hardcoding these. This makes it easier to add support for more formats.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-18-paul.kocialkowski@bootlin.com
In order to support YUV to RGB conversion with the frontend (which is
generally used for connecting with the backend), the CSC block must not
be bypassed.
As a result, the bit to enable CSC bypass is moved from the runtime
resume routine to the format update routine, so that it can disabled
when introducing support for YUV formats later.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-17-paul.kocialkowski@bootlin.com
