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Before commit bc0d7fdefec6 ("drm: vkms: Supports to the case where
primary plane doesn't match the CRTC"), the composition was executed on
top of the primary plane. Therefore, the primary plane was not able to
support the alpha channel. After commit bc0d7fdefec6, this is possible,
as the composition is now executed on top of the CRTC.
So, allow all planes to support the alpha channel, making full alpha
blending possible in vkms.
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230420232228.273340-1-mcanal@igalia.com
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Add atomic_get_input_bus_fmts() implementation, tc358768 has a parallel
RGB input interface with the actual bus format depending on the amount
of parallel input data lines.
Without this change when the tc358768 is used with less than 24bit the
color mapping is completely wrong.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330095941.428122-7-francesco@dolcini.it
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Even though we report that we support the BT.2020 Colorspace, we were
always using the BT.709 conversion matrices. Let's add the BT.2020 ones.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-9-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Even though we report that we support the BT601 Colorspace, we were
always using the BT.709 conversion matrices. Let's add the BT601 ones.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-8-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The CSC matrix to use depends on the output format, its range and the
colorspace.
Since we're going to add more colorspaces, let's move the CSC matrix
retrieval to a function.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-7-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The CSC matrices were stored as separate matrix for each colorspace, and
if we wanted a limited or full RGB output.
This created some gaps in our support and we would not always pick the
relevant matrix.
Let's rework our data structure to store one per colorspace, and then a
matrix for limited range and one for full range. This makes us add a new
matrix to support full range BT709 YUV output.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-6-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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YUV444 and YUV422 actually require the same matrix, but programmed
differently.
We've dealt with it in the past by having two matrices, with the one
for YUV444 reordered to accomodate the hardware.
This gets in the way of subsequent reworks so let's define a function
that will take the coefficients swap into account, and remove the now
redundant YUV444 matrix.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-5-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The VC4 HDMI driver has a helper function to figure out whether full
range or limited range RGB is being used called
vc4_hdmi_is_full_range_rgb().
We'll need it to support other colorspaces, so let's rename it to
vc4_hdmi_is_full_range().
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-4-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Copy Intel's "Broadcast RGB" property semantics to add manual override
of the HDMI pixel range for monitors that don't abide by the content
of the AVI Infoframe.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco at xs4all.nl>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-3-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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On VC4, the TV margins on the HDMI connector are implemented by scaling
the planes.
However, if only the TV margins or the connector are changed by a new
state, the planes ending up on that connector won't be. Thus, they won't
be updated properly and we'll effectively ignore that change until the
next commit affecting these planes.
Let's make sure to add all the planes attached to the connector so that
we can update them properly.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-2-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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container_of_const() allows to preserve the pointer constness and is
thus more flexible than inline functions.
Let's switch all our instances of container_of() to
container_of_const().
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20221207-rpi-hdmi-improvements-v3-1-bdd54f66884e@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Currently, the pixel conversion functions repeat the same loop to
iterate the rows. Instead of repeating the same code for each pixel
format, create a function to wrap the loop and isolate the pixel
conversion functionality.
Suggested-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Arthur Grillo <arthurgrillo@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418130525.128733-2-mcanal@igalia.com
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Insert a parameterized test for the drm_rect_rotate_inv() to ensure its
correctness and prevent future regressions. The test covers all rotation
modes.
It uses the same test cases from drm_test_rect_rotate().
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418230146.461129-6-arthurgrillo@riseup.net
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Insert a parameterized test for the drm_rect_rotate() to ensure
correctness and prevent future regressions.
All possible rotation modes are covered by the test.
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418230146.461129-5-arthurgrillo@riseup.net
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Insert parameterized test for the drm_rect_calc_vscale() to ensure
correctness and prevent future regressions. Besides the test for the
usual case, tests the exceptions.
It uses the same struct from drm_rect_calc_hscale().
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418230146.461129-4-arthurgrillo@riseup.net
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Insert parameterized test for the drm_rect_calc_hscale() to ensure
correctness and prevent future regressions. Besides the test for the
usual case, tests the exceptions.
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418230146.461129-3-arthurgrillo@riseup.net
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Insert parameterized tests for the drm_rect_intersect() to ensure
correctness and prevent future regressions.
Also, create a helper for testing if two drm_rects are equal.
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418230146.461129-2-arthurgrillo@riseup.net
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Backmerging to get the exynos fbdev updates.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Switch to using RCU handling for the last scheduled job and add a
function to return the error code of it.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230420115752.31470-2-christian.koenig@amd.com
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When a hw fence is signaled with an error properly forward that to the
finished fence.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230420115752.31470-1-christian.koenig@amd.com
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Convert platform_get_resource(),devm_ioremap_resource() to a single
call to devm_platform_ioremap_resource(), as this is exactly what this
function does.
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230421091319.79744-1-yang.lee@linux.alibaba.com
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
A patch series for implementing fbdev emulation as in-kernel client.
- This patch series refactors fbdev callbacks to DRM client functions and
simplifies fbdev emulation initialization including some code cleanups.
The changes make fbdev emulation behave like a regular DRM client.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417100624.35229-1-inki.dae@samsung.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
Active port PLL MST fix for second stream, CSC plane index fix,
null and oob array deref fixes and selftest memory leak fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZEDz9ZedyZVyFXxU@jlahtine-mobl.ger.corp.intel.com
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This driver includes the deprecated OF GPIO header <linux/of_gpio.h>
yet fail to use symbols from it, so drop this include.
Cc: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Acked-by: Alain Volmat <avolmat@me.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220812205746.609107-5-mairacanal@riseup.net
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This driver includes the deprecated OF GPIO header <linux/of_gpio.h>
yet fail to use symbols from it, so drop the include.
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220812205746.609107-2-mairacanal@riseup.net
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Add InnoLux G070ACE-L01 7" 800x480 TFT LCD with WLED backlight panel
support. Timing data was extracted from datasheet and vendor provided
EDID file.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230201-innolux-g070ace-v2-2-2371e251dd40@skidata.com
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Move code from ad-hoc fbdev callbacks into DRM client functions
and remove the old callbacks. The functions instruct the client
to poll for changed output or restore the display. The DRM core
calls both, the old callbacks and the new client helpers, from
the same places. The new functions perform the same operation as
before, so there's no change in functionality.
Replace all code that initializes or releases fbdev emulation
throughout the driver. Instead initialize the fbdev client by a
single call to armada_fbdev_setup() after armada has registered its
DRM device. As in most drivers, aramda's fbdev emulation now acts
like a regular DRM client.
The fbdev client setup consists of the initial preparation and the
hot-plugging of the display. The latter creates the fbdev device
and sets up the fbdev framebuffer. The setup performs display
hot-plugging once. If no display can be detected, DRM probe helpers
re-run the detection on each hotplug event.
A call to drm_dev_unregister() releases the client automatically.
No further action is required within armada. If the fbdev framebuffer
has been fully set up, struct fb_ops.fb_destroy implements the
release. For partially initialized emulation, the fbdev client
reverts the initial setup.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330073046.7150-5-tzimmermann@suse.de
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Initialize the fbdev client in the fbdev code with empty helper
functions. Also clean up the client. The helpers will later
implement various functionality of the DRM client. No functional
changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330073046.7150-4-tzimmermann@suse.de
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Only build armada's fbdev emulation if CONFIG_DRM_FBDEV_EMULATION
has been enabled. No functional changes, but allows to build armada
without fbdev.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330073046.7150-3-tzimmermann@suse.de
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Include <linux/of.h> to get declarations of of_node_put() and
of_device_is_available(). No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330073046.7150-2-tzimmermann@suse.de
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This bridge doesn't actually implement HPD due to it being way too slow
but instead expects the panel driver to wait enough to assume HPD is
asserted. However some panels (such as the generic 'edp-panel') expect
the bridge to deal with the delay and pass maximum delay to the aux
instead.
In order to support such panels, add a dummy implementation of wait
that would just sleep the maximum delay and assume no failure has
happened.
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230408082014.235425-1-nikita@trvn.ru
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Move PARISC's implementation of fb_is_primary_device() into the
architecture directory. This the place of the declaration and
where other architectures implement this function. No functional
changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417125651.25126-14-tzimmermann@suse.de
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STI core files have been located in console and fbdev code. Move
the source code and header to the directories for video helpers.
Also update the config and build rules such that the code depends
on the config symbol CONFIG_STI_CORE, which STI console and STI
framebuffer select automatically.
Cleans up the console makefile and prepares PARISC to implement
fb_is_primary_device() within the arch/ directory. No functional
changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417125651.25126-12-tzimmermann@suse.de
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Fix trailing whitespaces. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417125651.25126-11-tzimmermann@suse.de
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Currently, drm_gem_fb_create() doesn't check if the pixel format is
supported, which can lead to the acceptance of invalid pixel formats
e.g. the acceptance of invalid modifiers. Therefore, add a check for
valid formats on drm_gem_fb_create().
Note that this check is only valid for atomic drivers, because, for
non-atomic drivers, checking drm_any_plane_has_format() is not
possible since the format list for the primary plane is fake, and we'd
therefore reject valid formats.
Adding this check to drm_gem_fb_create() will guarantee that the
igt@kms_addfb_basic@addfb25-bad-modifier IGT test passes for drivers
using this callback.
This commit is a recapture of a series sent a while ago. Initially,
I sent a patch [1] similar to this one in which I introduced the
format check to drm_gem_fb_create().
Based on the feedback on the patch, I placed the check inside
framebuffer_check() [2] so that it wouldn't be needed to hit any
driver-specific code path when the check fails. Therefore, we could
remove the check from the specific drivers (i915, amdgpu, and vmwgfx).
But, with some new feedback, it was shown that introducing this check
inside framebuffer_check() is problematic for the i915 driver [3].
For the i915 driver, in the legacy case, in which we don't get the
modifier from the userspace, i915's fb_create hook computes the right
modifier, which isn't necessarily linear. Therefore, if we check the
modifier before that point, we might get wrong answers.
So, I kept the check inside the i915 driver and removed the check from
amdgpu and vmwgfx [4]. But, this yet hasn't solved the i915 problem [5].
As we cannot add the check inside framebuffer_check() without
affecting the i915 behavior, this commit went back to the original
patch. This way we can guarantee a more uniform behavior from the
drivers that use the drm_gem_fb_create() callback.
[1] https://lore.kernel.org/dri-devel/20230103125322.855089-1-mcanal@igalia.com/T/
[2] https://lore.kernel.org/dri-devel/20230109105807.18172-1-mcanal@igalia.com/T/
[3] https://lore.kernel.org/dri-devel/Y8AAdW2y7zN7DCUZ@intel.com/
[4] https://lore.kernel.org/dri-devel/20230113112743.188486-1-mcanal@igalia.com/T/
[5] https://lore.kernel.org/dri-devel/Y8FXWvEhO7GCRKVJ@intel.com/
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230412142923.136707-1-mcanal@igalia.com
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The port PLL selection needs to be up-to-date in the CRTC state of both
the primary and all secondary MST streams. The commit removing the
encoder update_prepare/complete hooks (see Fixes: below), stopped doing
this for secondary streams, fix this up.
Fixes: 0f752b2178c9 ("drm/i915: Remove the encoder update_prepare()/complete() hooks")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8336
Cc: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230414173800.590790-1-imre.deak@intel.com
(cherry picked from commit 27ac123b454417ea92d77c13a5d94655f53b759c)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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It already happend a few times that patches slipped through which
implemented access to an entity through a job that was already removed
from the entities queue. Since jobs and entities might have different
lifecycles, this can potentially cause UAF bugs.
In order to make it obvious that a jobs entity pointer shouldn't be
accessed after drm_sched_entity_pop_job() was called successfully, set
the jobs entity pointer to NULL once the job is removed from the entity
queue.
Moreover, debugging a potential NULL pointer dereference is way easier
than potentially corrupted memory through a UAF.
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://lore.kernel.org/r/20230418100453.4433-1-dakr@redhat.com
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
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in two functions
The address of a data structure member was determined before
a corresponding null pointer check in the implementation of
the functions “nvkm_fanpwm_create” and “nvkm_fantog_create”.
Thus avoid the risk for undefined behaviour by moving the assignment
for the data structure member “fan” behind two null pointer checks.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3d0215dc-74d4-2c42-2eee-7a5fcf62b9f1@web.de
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nvkm_pcie_set_link()
The variable “pbus” was read only once in the implementation of
the function “nvkm_pcie_set_link”.
Thus move the usage of an expression into a parameter for a function call.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/04e2c1f5-26c7-9a23-5861-3d8757556cdd@web.de
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nvkm_pcie_set_link()
The address of a data structure member was determined before
a corresponding null pointer check in the implementation of
the function “nvkm_pcie_set_link”.
Thus avoid the risk for undefined behaviour by moving the assignment
for the variable “subdev” behind some condition checks.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b31019b1-bb73-ed93-3378-e551e17a4f32@web.de
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nvkm_pstate_new()
The address of a data structure member was determined before
a corresponding null pointer check in the implementation of
the function “nvkm_pstate_new”.
Thus avoid the risk for undefined behaviour by moving the assignment
for the variable “cstate” behind the null pointer check.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6435d829-2c9b-a3f7-c8cd-cf923508a092@web.de
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parameter in nvbios_power_budget_header()
The address of a data structure member was determined before
a corresponding null pointer check in the implementation of
the function “nvbios_power_budget_header”.
Thus avoid the risk for undefined behaviour by moving the usage
of an expression into a parameter for a macro call in one if branch.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/529fe82e-59f0-71a2-1e33-b051f833b67c@web.de
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nouveau_debugfs_pstate_get()
Five strings which did not contain a data format specification should
be put into a sequence. Thus use the corresponding function “seq_puts”.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bdee7e41-094a-91d1-3f6f-56df402d70b7@web.de
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A single character (line break) should be put into a sequence.
Thus use the corresponding function “seq_putc”.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e6f9b34e-58d9-b1aa-8b12-8d4a55153d1d@web.de
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in nouveau_debugfs_pstate_get()
The address of a data structure member was determined before
a corresponding null pointer check in the implementation of
the function “nouveau_debugfs_pstate_get”.
Thus avoid the risk for undefined behaviour by moving the assignment
for the variable “ctrl” behind the null pointer check.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5b7b99f7-1692-74e5-4b1e-cfa14dad7c57@web.de
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nouveau_debugfs_pstate_set()
The address of a data structure member was determined before
a corresponding null pointer check in the implementation of
the function “nouveau_debugfs_pstate_set”.
Thus avoid the risk for undefined behaviour by moving the usage
of an expression into a parameter for a function call at the end.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1903e057-57d3-e12e-da37-008e23afd2e2@web.de
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Some Lenovo J606F tablets come with a 2K (2000x1200) 60Hz 11" 5:3
video mode display. Add support for these panels.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Jianhua Lu <lujianhua000@gmail.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230412-topic-lenovopanel-v3-4-bcf9ba4de46f@linaro.org
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Some bright vendors mount their display panels upside down. Add the
required pieces to allow for accounting for that.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Jianhua Lu <lujianhua000@gmail.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230412-topic-lenovopanel-v3-3-bcf9ba4de46f@linaro.org
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This chip supports controlling the backlight via DCS commands, on at
least some panels. Add support for doing so.
Note this may only concern the NT36523*W* variant. Nobody knows, really,
there's no docs.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Jianhua Lu <lujianhua000@gmail.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230412-topic-lenovopanel-v3-2-bcf9ba4de46f@linaro.org
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Move code from ad-hoc fbdev callbacks into DRM client functions
and remove the old callbacks. The functions instruct the client
to poll for changed output or restore the display. The DRM core
calls both, the old callbacks and the new client helpers, from
the same places. The new functions perform the same operation as
before, so there's no change in functionality.
Replace all code that initializes or releases fbdev emulation
throughout the driver. Instead initialize the fbdev client by a
single call to exynos_fbdev_setup() after exynos has registered its
DRM device. As in most drivers, exynos' fbdev emulation now acts
like a regular DRM client.
The fbdev client setup consists of the initial preparation and the
hot-plugging of the display. The latter creates the fbdev device
and sets up the fbdev framebuffer. The setup performs display
hot-plugging once. If no display can be detected, DRM probe helpers
re-run the detection on each hotplug event.
A call to drm_dev_unregister() releases the client automatically.
No further action is required within exynos. If the fbdev framebuffer
has been fully set up, struct fb_ops.fb_destroy implements the
release. For partially initialized emulation, the fbdev client
reverts the initial setup.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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