- 29 Jul, 2022 6 commits
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Thomas Zimmermann authored
Hold I/O-register lock in atomic_commit_tail to protect all pipeline updates at once. Protects against concurrent I/O access in get-modes helper. Complex modesetting operations involve mode changes, plane updates and possibly BMC updates. Make all this atomic wrt to reading display modes via EDID. It's not so much an issue with simple-KMS helpers, but will become necessary for using regular atomic helpers. v4: * remove empty line Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Jocelyn Falempe <jfalempe@redhat.com> Tested-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220728124103.30159-5-tzimmermann@suse.de
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Thomas Zimmermann authored
The register initialization code contains special cases for G200ER and G200EW3 hardware. Move this to per-model code. Signed-off-by:
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Thomas Zimmermann authored
Provide an init function for each model's DAC registers. Remove the shared helper. The code for initializing the DAC registers consisted of a large table of default value, plus many exceptions for the various G200 models. Providing a per-model implementation makes if more readable. At some point, some of the initialization should probably move into the modesetting code. v2: * don't duplicate DAC values unnecessarily (Sam, Jocelyn) Signed-off-by:
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Thomas Zimmermann authored
Split mgag200_modeset_init() into smaller helpers to initialize the mode_config structure and the pipeline. This will be helpful for transforming this code into per-model functions. No functional changes. Signed-off-by:
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Maíra Canal authored
The igt_check_drm_format_min_pitch() function had a lot of KUNIT_EXPECT_* calls, all of which ended up allocating and initializing various test assertion structures on the stack. This behavior was producing -Wframe-larger-than warnings on PowerPC, i386, and MIPS architectures, such as: drivers/gpu/drm/tests/drm_format_test.c: In function 'igt_check_drm_format_min_pitch': drivers/gpu/drm/tests/drm_format_test.c:271:1: error: the frame size of 3712 bytes is larger than 2048 bytes So, the igt_check_drm_format_min_pitch() test case was split into three smaller functions: one testing single plane formats, one testing multi-planar formats, and the other testing tiled formats. Fixes: 0421bb0b ("drm: selftest: convert drm_format selftest to KUnit") Reported-by:
kernel test robot <lkp@intel.com> Reported-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Maíra Canal <mairacanal@riseup.net> Tested-by:
André Almeida <andrealmeid@igalia.com> Signed-off-by:
Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220729124726.748221-1-mairacanal@riseup.net
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Simon Ser authored
drm_dp_dpcd_read returns the number of bytes read. The previous code would print garbage on DPCD error, and would exit with on error on success. Signed-off-by:
Simon Ser <contact@emersion.fr> Fixes: cb897542 ("drm/dp_mst: Fix W=1 warnings") Cc: Lyude Paul <lyude@redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard@st.com> Reviewed-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/473500/
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- 28 Jul, 2022 14 commits
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José Expósito authored
Extend the existing test cases to test the conversion from XRGB8888 to RGB565. The documentation and the color picker available on [1] are useful resources to understand this patch and validate the values returned by the conversion function. Tested-by:
Tales L. Aparecida <tales.aparecida@gmail.com> Acked-by:
David Gow <davidgow@google.com> Signed-off-by:
José Expósito <jose.exposito89@gmail.com> Link: http://www.barth-dev.de/online/rgb565-color-picker/ # [1] Link: https://patchwork.freedesktop.org/patch/msgid/20220726230916.390575-5-jose.exposito89@gmail.com
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José Expósito authored
In order to support multiple destination format conversions, store the destination pitch and the expected result in its own structure. Tested-by:
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José Expósito authored
The tests available at the moment only check the conversion from XRGB8888 to RGB332. However, more conversions will be tested in the future. In order to make the struct and functions present in the tests more generic, rename xrgb8888_to_rgb332_* to convert_xrgb8888_*. Tested-by:
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José Expósito authored
The tests fail on big endian architectures, like PowerPC: $ ./tools/testing/kunit/kunit.py run \ --kunitconfig=drivers/gpu/drm/tests \ --arch=powerpc --cross_compile=powerpc64-linux-gnu- Transform the XRGB8888 buffer from little endian to the CPU endian before calling the conversion function to avoid this error. Fixes: 8f456104 ("drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_rgb332()") Reported-by:
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Danilo Krummrich authored
All IDRs in the DRM core and drivers which are applicable for using idr_init_base() over idr_init() should be set up to use a proper base in order to avoid unnecessary tree walks. Signed-off-by:
Danilo Krummrich <dakr@redhat.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20220701190227.284783-3-dakr@redhat.com
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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Danilo Krummrich authored
idr_init_base(), implemented by commit 6ce711f2 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by:
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- 27 Jul, 2022 4 commits
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Daniel Vetter authored
No driver access this anymore, except for the olpc dcon fbdev driver but that has been marked as broken anyways by commit de0952f2 ("staging: olpc_dcon: mark driver as broken"). Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Signed-off-by:
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Marek Vasut authored
Add support for Densitron DMT028VGHMCMI-1A TFT matrix into this driver. This is a DSI-attached 480x640 2.83 inch panel. Signed-off-by:
Marek Vasut <marex@denx.de> Cc: Guido Günther <agx@sigxcpu.org> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220725151703.319939-2-marex@denx.de
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Marek Vasut authored
Add compatible string for Densitron DMT028VGHMCMI-1A TFT matrix. This is a DSI-attached 480x640 2.83 inch panel. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Slark Xiao authored
Replace 'the the' with 'the' in the comment. Signed-off-by:
Slark Xiao <slark_xiao@163.com> Signed-off-by:
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- 26 Jul, 2022 7 commits
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Thomas Zimmermann authored
Replace the driver's own function with drm_plane_helper_destroy(). No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Replace the driver's own function with drm_plane_helper_destroy(). No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Export the individual plane helpers that make up the plane functions and align the naming with other helpers. The plane helpers are for non-atomic modesetting and exporting them will simplify a later conversion of drivers to atomic modesetting. With struct drm_plane_funcs removed from drm_plane_helper.h, also remove the include statements. It only needs linux/types.h for uint32_t and a number of forward declarations. Signed-off-by:
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Thomas Zimmermann authored
Remove the include statement for drm_plane_helper.h from all the files that don't need it. Althogh the header file is almost empty, many drivers include it somewhere. Signed-off-by:
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Thomas Zimmermann authored
Rename DRM_PLANE_HELPER_NO_SCALING to DRM_PLANE_NO_SCALING. The constant is not really a helper, but rather a characteristic of the plane itself. Signed-off-by:
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Thomas Zimmermann authored
The macro DRM_PLANE_HELPER_NO_SCALING is only useful with the interfaces in drm_atomic_helper.h, but defined in drm_plane_helper.h. So half of DRM includes the latter header file for using this macro. Move the macro and remove the include statements. Signed-off-by:
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Thomas Zimmermann authored
Fix coding style. No functional changes. Signed-off-by:
Zack Rusin <zackr@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220720083058.15371-2-tzimmermann@suse.de
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- 22 Jul, 2022 8 commits
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Javier Martinez Canillas authored
If devm_drm_of_get_bridge() can't find the connected bridge, it returns an ERR_PTR(-EPROBE_DEFER) to indicate that the probe should be deferred. But this path also prints an error message, which pollutes the kernel log since is printed on every probe deferral, i.e: $ dmesg | grep "failed to create panel bridge" | wc -l 38 Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Reviewed-by:
Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by:
Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220722074755.660258-1-javierm@redhat.com
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Liviu Dudau authored
Komeda driver relies on the generic DRM atomic helper functions to handle commits. It only implements an atomic_commit_tail hook for the mode_config_helper_funcs and even that one is pretty close to the generic implementation with the exception of additional dma_fence signalling. What the generic helper framework doesn't do is waiting for the actual hardware to signal that the commit parameters have been written into the appropriate registers. As we signal CRTC events only on the irq handlers, we need to flush the configuration and wait for the hardware to respond. Add the Komeda specific implementation for atomic_commit_hw_done() that flushes and waits for flip done before calling drm_atomic_helper_commit_hw_done(). The fix was prompted by a patch from Carsten Haitzler where he was trying to solve the same issue but in a different way that I think can lead to wrong event signaling to userspace. Reported-by:
Carsten Haitzler <carsten.haitzler@arm.com> Tested-by:
Liviu Dudau <liviu.dudau@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220722122139.288486-1-liviu.dudau@arm.com
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Carsten Haitzler authored
If something has already set up the DPU before the komeda driver comes up, it will fail to init because it was just writing to the SRST bit in the GCU control register and ignoring others. This resulted in TBU bringup stalling and init failing. By writing completely we also set the mode back to 0 (inactive) too and thus TBU bringup works. Signed-off-by:
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Carsten Haitzler authored
The komeda driver doesn't come up with a visible text (FB) mode VT by default as it was missing legacy FB support. It's useful to have a working text VT on a system for debug and general usability, so enable it. You can always toggle CONFIG_FRAMEBUFFER_CONSOLE. Signed-off-by:
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Robin Murphy authored
Since we no longer need to conform to the structure of the various DRM IRQ callbacks, we can streamline the code by consolidating the piecemeal functions and passing around our private data structure directly. We're also a platform device so should never see IRQ_NOTCONNECTED either. Furthermore we can also get rid of all the unnecesary read-modify-write operations, since on install we know we cleared the whole interrupt mask before enabling the debug IRQs, and thus on uninstall we're always clearing everything as well. Signed-off-by:
Robin Murphy <robin.murphy@arm.com> Acked-by:
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Robin Murphy authored
The Arm Juno board EDK2 port has provided an EFI GOP display via HDLCD0 for some time now, which works nicely as an early framebuffer. However, once the HDLCD driver probes and takes over the hardware, it should take over the logical framebuffer as well, otherwise the now-defunct GOP device hangs about and virtual console output inevitably disappears into the wrong place most of the time. We'll do this after binding the HDMI encoder, since that's the most likely thing to fail, and the EFI console is still better than nothing when that happens. However, the two HDLCD controllers on Juno are independent, and many users will still be using older firmware without any display support, so we'll only bother if we find that the HDLCD we're probing is already enabled. And if it is, then we'll also stop it, since otherwise the display can end up shifted if it's still scanning out while the rest of the registers are subsequently reconfigured. Signed-off-by:
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pengfuyuan authored
Fix spelling typo in comments. Reported-by:
k2ci <kernel-bot@kylinos.cn> Signed-off-by:
pengfuyuan <pengfuyuan@kylinos.cn> Acked-by:
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Thomas Zimmermann authored
Reverse the order of the final two arguments when calling aperture_remove_conflicting_devices(). An error report is available at [1]. Reported-by:
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- 21 Jul, 2022 1 commit
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Chen-Yu Tsai authored
The datasheet says that VDD12 must be enabled and at full voltage before VDD33 is enabled. Reorder the bulk regulator supply names so that VDD12 is enabled before VDD33. Any enable ramp delays should be handled by setting proper constraints on the regulators. Fixes: bc1aee7f ("drm/bridge: Add I2C based driver for ps8640 bridge") Signed-off-by:
Chen-Yu Tsai <wenst@chromium.org> Reviewed-by:
Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220721092258.3397461-1-wenst@chromium.org
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