The smc commands of eDP and DP are different. We add smc_cmd to the
device data to define them.
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-6-rex-bc.chen@mediatek.com
The bridge types of eDP and DP are different. We add device data to
this driver and add bridge_type to the device data to define them.
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-5-rex-bc.chen@mediatek.com
This patch adds a embedded displayport driver for the MediaTek mt8195 SoC.
It supports the MT8195, the embedded DisplayPort units. It offers
DisplayPort 1.4 with up to 4 lanes.
The driver creates a child device for the phy. The child device will
never exist without the parent being active. As they are sharing a
register range, the parent passes a regmap pointer to the child so that
both can work with the same register range. The phy driver sets device
data that is read by the parent to get the phy device that can be used
to control the phy properties.
This driver is based on an initial version by
Jitao shi <jitao.shi@mediatek.com>
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-4-rex-bc.chen@mediatek.com
Similar to HDMI, DP uses audio infoframes as well which are structured
very similar to the HDMI ones.
This patch adds a helper function to pack the HDMI audio infoframe for
DP, called hdmi_audio_infoframe_pack_for_dp().
hdmi_audio_infoframe_pack_only() is split into two parts. One of them
packs the payload only and can be used for HDMI and DP.
Also constify the frame parameter in hdmi_audio_infoframe_check() as
it is passed to hdmi_audio_infoframe_check_only() which expects a const.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-3-rex-bc.chen@mediatek.com
This controller is present on several mediatek hardware. Currently
mt8195 and mt8395 have this controller without a functional difference,
so only one compatible field is added.
The controller can have two forms, as a normal display port and as an
embedded display port.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-2-rex-bc.chen@mediatek.com
A lot of modern laptops use the Parade PS8461E MUX for eDP
switching. The MUX can operate in jitter cleaning mode or
redriver mode, the first one resulting in higher link
quality. The jitter cleaning mode needs to know the link
rate used and the MUX achieves this by snooping the
LINK_BW_SET, LINK_RATE_SELECT and SUPPORTED_LINK_RATES
DPCD accesses.
When the MUX is powered down (seems this can happen whenever
the display is turned off) it loses track of the snooped
link rates so when we do the LINK_RATE_SELECT write it no
longer knowns which link rate we're selecting, and thus it
falls back to the lower quality redriver mode. This results
in unstable high link rates (eg. usually 8.1Gbps link rate
no longer works correctly).
In order to avoid all that let's re-snoop SUPPORTED_LINK_RATES
from the sink at the start of every link training.
Unfortunately we don't have a way to detect the presence of
the MUX. It looks like the set of laptops equipped with this
MUX is fairly large and contains devices from multiple
manufacturers. It may also still be growing with new models.
So a quirk doesn't seem like a very easily maintainable
option, thus we shall attempt to do this unconditionally on
all machines that use LINK_RATE_SELECT. Hopefully this extra
DPCD read doesn't cause issues for any unaffected machine.
If that turns out to be the case we'll need to convert this
into a quirk in the future.
Cc: stable@vger.kernel.org
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6205
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220902070319.15395-1-ville.syrjala@linux.intel.com
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Add the option to set the byteswap order in the devicetree. For the
official HDMI DIP for the NTC CHIP the byteswap order needs to be
RGB, however the driver sets it as BGR. With this patch the driver
will remain at BGR unless manually specified via devicetree.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220902153906.31000-3-macroalpha82@gmail.com
Update dt-binding documentation to add support for setting byteswap of
chrontel ch7033.
New property name of chrontel,byteswap added to set the byteswap order.
This property is optional.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220902153906.31000-2-macroalpha82@gmail.com
Implement the bridge connector-related .get_edid() and .detect()
operations for full DP mode, and report the related bridge capabilities
and type.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220831082653.20449-4-tomi.valkeinen@ideasonboard.com
Despite the SN65DSI86 being an eDP bridge, on some systems its output is
routed to a DisplayPort connector. Enable DisplayPort mode when the next
component in the display pipeline is detected as a DisplayPort
connector, and disable eDP features in that case.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reworked to set bridge type based on the next bridge/connector.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
--
Changes since v1/RFC:
- Rebased on top of "drm/bridge: ti-sn65dsi86: switch to
devm_drm_of_get_bridge"
- eDP/DP mode determined from the next bridge connector type.
Changes since v2:
- Remove setting of Standard DP Scrambler Seed. (It's read-only).
- Prevent setting DP_EDP_CONFIGURATION_SET in
ti_sn_bridge_atomic_enable()
- Use Doug's suggested text for disabling ASSR on DP mode.
Changes since v3:
- Remove ASSR_CONTROL definition
Changes since v4:
- Refactor code to configure the DP/eDP scrambler in one place.
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220831082653.20449-3-tomi.valkeinen@ideasonboard.com
The front and back porch registers are 8 bits, and pulse width registers
are 15 bits, so reject any modes with larger periods.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220831082653.20449-2-tomi.valkeinen@ideasonboard.com
The current scheme for generating the LFP data table pointers
(when the block including them is missing from the VBT) expects
the 0xffff sequence to only appear in the fp_timing terminator
entries. However some VBTs also have extra 0xffff sequences
elsewhere in the LFP data. When looking for the terminators
we may end up finding those extra sequeneces insted, which means
we deduce the wrong size for the fp_timing table. The code
then notices the inconsistent looking values and gives up on
the generated data table pointers, preventing us from parsing
the LFP data table entirely.
Let's give up on the "search for the terminators" approach
and instead just hardcode the expected size for the fp_timing
table.
We have enough sanity checks in place to make sure we
shouldn't end up parsing total garbage even if that size
should change in the future (although that seems unlikely
as the fp_timing and dvo_timing tables have been declared
obsolete as of VBT version 229).
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6592
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818192223.29881-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Expecting to observe a specific value, when the function responsible for
setting the value has failed will lead to extra noise in test output.
Use assert when the situation calls for it.
Also - very small tidying up around the changed areas (whitespace).
v2: Leave out the locals (drm_connector is huge) (lkp)
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817211236.252091-2-michal.winiarski@intel.com
Negative tests can be expressed as a single parameterized test case,
which highlights that we're following the same test logic (passing
invalid cmdline and expecting drm_mode_parse_command_line_for_connector
to fail), which improves readability.
v2: s/negative/invalid to be consistent with other testcases in DRM
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817211236.252091-1-michal.winiarski@intel.com
Like commit c4f135d643 ("workqueue: Wrap flush_workqueue() using a
macro") says, flush_scheduled_work() is dangerous and will be forbidden.
We are on the way for removing all flush_scheduled_work() callers from
the kernel, and this patch is for removing flush_scheduled_work() call
from cadence driver.
Since cdns-mhdp8546 driver uses 4 works
mhdp->modeset_retry_work
mhdp->hpd_work
mhdp->hdcp.check_work
mhdp->hdcp.prop_work
I assume that flush_scheduled_work() in cdns_mhdp_remove() needs to wait
for only these 4 works.
Since mhdp->modeset_retry_work already uses cancel_work_sync(), I assume
that flush_scheduled_work() needs to wait for only 3 works. But I came to
wonder whether mhdp->hdcp.check_work should be flushed or cancelled.
While flush_scheduled_work() waits for completion of works which were
already queued to system_wq, mhdp->hdcp.check_work is a delayed work.
That is, this work won't be queued to system_wq unless timeout expires.
Current code will wait for mhdp->hdcp.check_work only if timeout already
expired. If timeout is not expired yet, flush_scheduled_work() will fail
to cancel mhdp->hdcp.check_work, and cdns_mhdp_hdcp_check_work() which is
triggered by mhdp->hdcp.check_work will schedule hdcp->check_work, which
is too late for flush_scheduled_work() to wait for completion of
cdns_mhdp_hdcp_prop_work().
But since I couldn't get comments on how do we want to handle this race
window [1], this patch chose "do nothing" for mhdp->hdcp.check_work and
mhdp->hdcp.prop_work. That is, I assume that flush_scheduled_work() in
cdns_mhdp_remove() needs to wait for only mhdp->hpd_work work.
Link: https://lkml.kernel.org/r/943273cb-c2ec-24e3-5edb-64eacc6e2d30@I-love.SAKURA.ne.jp [1]
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/216591bc-28bb-0453-10bb-59e268dff540@I-love.SAKURA.ne.jp
While executing i915_selftest, wakeref imbalance warning is seen
with i915_selftest failure.
Currently when Driver is suspended, while doing unregister
it is taking wakeref without resuming the device.
This patch is resuming the device, if driver is already suspended
and doing unregister process.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830085158.577157-1-mitulkumar.ajitkumar.golani@intel.com
Convert to io-pgtable's bulk {map,unmap}_pages() APIs, to help the old
single-page interfaces eventually go away. Unmapping heap BOs still
wants to be done a page at a time, but everything else can get the full
benefit of the more efficient interface.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/daef7f8c134d989c55636a5790d8c0fcaca1bae3.1661205687.git.robin.murphy@arm.com
On some systems the panel reports alternate modes with
different blanking periods. If the EDID reports them and VBT
doesn't tell us otherwise then I can't really see why they
should be rejected. So allow their use for the purposes of
static DRRS.
For seamless DRRS we still require a much more exact match
of course. But that logic only kicks in when selecting the
downclock mode (or in the future when determining whether
we can do a seamless refresh rate change due to a user
modeset).
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6374
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830212436.2021-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Turns out the MIPI sequence block version number and
new block size fields are considered part of the block
header and are not included in the reported new block size
field itself. Bump up the block size appropriately so that
we'll copy over the last five bytes of the block as well.
For this particular machine those last five bytes included
parts of the GPIO op for the backlight on sequence, causing
the backlight no longer to turn back on:
Sequence 6 - MIPI_SEQ_BACKLIGHT_ON
Delay: 20000 us
- GPIO index 0, number 0, set 0 (0x00)
+ GPIO index 1, number 70, set 1 (0x01)
Cc: stable@vger.kernel.org
Fixes: e163cfb4c9 ("drm/i915/bios: Make copies of VBT data blocks")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6652
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220829135834.8585-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Avoid BUG_ON(). We don't have such checks on output type anywhere else
either, so just remove.
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830093411.1511040-1-jani.nikula@intel.com
Move display frontbuffer tracking related members under drm_i915_private
display sub-struct.
Rename struct i915_frontbuffer_tracking to intel_frontbuffer_tracking
while at it.
FIXME: fb_tracking.lock mutex init should be moved away from
i915_gem_init_early().
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a5444d0a373afca46da9a2f6e4db442af21b429b.1661779055.git.jani.nikula@intel.com
Bo-Chen Chen