- 12 Oct, 2023 2 commits
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Thomas Zimmermann authored
Rename the fbdev mmap helper fb_pgprotect() to pgprot_framebuffer(). The helper sets VMA page-access flags for framebuffers in device I/O memory. Also clean up the helper's parameters and return value. Instead of the VMA instance, pass the individial parameters separately: existing page-access flags, the VMAs start and end addresses and the offset in the underlying device memory rsp file. Return the new page-access flags. These changes align pgprot_framebuffer() with other pgprot_() functions. v4: * fix commit message (Christophe) v3: * rename fb_pgprotect() to pgprot_framebuffer() (Arnd) Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230922080636.26762-3-tzimmermann@suse.de
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Thomas Zimmermann authored
Only PowerPC's fb_pgprotect() needs the file argument, although the implementation in either phys_mem_access_prot() or pci_phys_mem_access_prot() does not use it. Pass NULL to the internal helper in preparation of further updates. A later patch will remove the file parameter from fb_pgprotect(). While at it, replace the shift operation with PHYS_PFN(). v5: * state function names in commit description (Javier) Suggested-by:
Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by:
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- 11 Oct, 2023 14 commits
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Thierry Reding authored
It's confusing for a function to return NULL and ERR_PTR()-encoded error codes on failure. Make sure we only ever return the latter since that's what callers already expect. Reported-by:
Sui Jingfeng <suijingfeng@loongson.cn> Reviewed-by:
Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZSVuVcqdGfGtQIQj@orome.fritz.box
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Mikko Perttunen authored
UBSAN reports an invalid load for bool, as the iosys_map is read later without being initialized. Zero-initialize it to avoid this. Reported-by:
Ashish Mhetre <amhetre@nvidia.com> Signed-off-by:
Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by:
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Johnny Liu authored
Original implementation over allocates the memory size for the contexts list. The size of memory for the contexts list is based on the number of iommu groups specified in the device tree. Fixes: 8aa5bcb6 ("gpu: host1x: Add context device management code") Signed-off-by:
Johnny Liu <johnliu@nvidia.com> Signed-off-by:
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Mikko Perttunen authored
Support sharded syncpoint interrupts on Tegra234+. This feature allows specifying one of eight interrupt lines for each syncpoint to lower processing latency of syncpoint threshold interrupts. Signed-off-by:
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Mikko Perttunen authored
With the previous CDMA stop fix, executing runtime PM ops around system suspend now makes channel submissions work after system suspend, so do that. Signed-off-by:
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Mikko Perttunen authored
Before going into suspend, wait all CDMA to go idle and stop it. This will ensure no channel is still active while we enter suspend, and ensures the driver doesn't think that CDMA is still active when coming back from suspend (as HW state has been reset). Signed-off-by:
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Mikko Perttunen authored
Add locking around channel allocation to avoid race conditions. Signed-off-by:
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Lee Jones authored
When converting from int to string, we must allow for up to 10-chars (2147483647). Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/tegra/hub.c: In function ‘tegra_display_hub_probe’: drivers/gpu/drm/tegra/hub.c:1106:47: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 4 [-Wformat-truncation=] drivers/gpu/drm/tegra/hub.c:1106:42: note: directive argument in the range [0, 4294967294] drivers/gpu/drm/tegra/hub.c:1106:17: note: ‘snprintf’ output between 6 and 15 bytes into a destination of size 8 Signed-off-by:
Lee Jones <lee@kernel.org> Signed-off-by:
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Yue Haibing authored
Commit 776dc384 ("drm/tegra: Move subdevice infrastructure to host1x") removed the implementation but not the declaration. Signed-off-by:
Yue Haibing <yuehaibing@huawei.com> Signed-off-by:
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Sui Jingfeng authored
else is not generally useful after return Signed-off-by:
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Dmitry Baryshkov authored
Implement the oob_hotplug_event() callback. Translate it to the HPD notification sent to the HPD bridge in the chain. Reviewed-by:
Janne Grunau <j@jannau.net> Link: https://lore.kernel.org/r/20231009174048.2695981-4-dmitry.baryshkov@linaro.orgSigned-off-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231009174048.2695981-4-dmitry.baryshkov@linaro.org
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Dmitry Baryshkov authored
In some cases the bridge drivers would like to receive hotplug events even in the case new status is equal to the old status. In the DP case this is used to deliver "attention" messages to the DP host. Stop filtering the events in the drm_bridge_connector_hpd_cb() and let drivers decide whether they would like to receive the event or not. Reviewed-by:
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Bjorn Andersson authored
In some implementations, such as the Qualcomm platforms, the display driver has no way to query the current HPD state and as such it's impossible to distinguish between disconnect and attention events. Add a parameter to drm_connector_oob_hotplug_event() to pass the HPD state. Also push the test for unchanged state in the displayport altmode driver into the i915 driver, to allow other drivers to act upon each update. Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Acked-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20231009174048.2695981-2-dmitry.baryshkov@linaro.orgSigned-off-by:
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Thomas Zimmermann authored
Updating drm-misc-next to the state of Linux v6.6-rc2. Signed-off-by:
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- 10 Oct, 2023 5 commits
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Klaus Goger authored
The LTK050H3148W-CTA6 is a 5.0" 720x1280 DSI display, whose driving controller is a Himax HX8394-F, slightly different from LTK050H3146W by its init sequence, mode details and mode flags. Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
Klaus Goger <klaus.goger@theobroma-systems.com> Signed-off-by:
Quentin Schulz <quentin.schulz@theobroma-systems.com> Reviewed-by:
Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220131164723.714836-2-quentin.schulz@theobroma-systems.com
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Quentin Schulz authored
The LTK050H3148W-CTA6 is a 5.0" 720x1280 DSI display, whose driving controller is a Himax HX8394-F, slightly different from LTK050H3146W by its init sequence, mode details and mode flags. Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Quentin Schulz authored
To prepare for a new display to be supported by this driver which has a slightly different set of DSI mode related flags, let's move the currently hardcoded mode flags to the .data field of of_device_id structure. Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
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Ma Ke authored
In tpg110_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. Signed-off-by:
Ma Ke <make_ruc2021@163.com> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20231009090446.4043798-1-make_ruc2021@163.comSigned-off-by:
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Ma Ke authored
In versatile_panel_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. Signed-off-by:
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- 09 Oct, 2023 14 commits
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Yang Li authored
Convert platform_get_resource(), devm_ioremap_resource() to a single call to devm_platform_get_and_ioremap_resource(), as this is exactly what this function does. Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Signed-off-by:
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Zhu Wang authored
The driver depends on CONFIG_OF, so it is not necessary to use of_match_ptr here. Even for drivers that do not depend on CONFIG_OF, it's almost always better to leave out the of_match_ptr(), since the only thing it can possibly do is to save a few bytes of .text if a driver can be used both with and without it. Hence we remove of_match_ptr. Signed-off-by:
Zhu Wang <wangzhu9@huawei.com> Signed-off-by:
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Christophe JAILLET authored
cdn_dp_audio_codec_init() can fail. So add some error handling. If component_add() fails, the previous cdn_dp_audio_codec_init() call should be undone, as already done in the remove function. Fixes: 88582f56 ("drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Mark Brown authored
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Michael Tretter authored
Checking if a modifier is supported by a plane is normal behavior. It is normal that a plane may not support certain modifiers. Failing the check doesn't justify an error message in the kernel log and may mislead users. Demote the error message to drm_dbg_kms to only print the message if the respective debug messages are enabled. This is similar to the behavior in rockchip_drm_vop.c. Signed-off-by:
Michael Tretter <m.tretter@pengutronix.de> Signed-off-by:
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Adrián Larumbe authored
Fix issues revealed by `make htmldocs` after adding Panfrost DRM documentation file. Signed-off-by:
Adrián Larumbe <adrian.larumbe@collabora.com> Fixes: f11b0417 ("drm/panfrost: Add fdinfo support GPU load metrics") Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202310030917.Txzlpoeq-lkp@intel.comReviewed-by:
Steven Price <steven.price@arm.com> Signed-off-by:
Boris Brezillon <boris.brezillon@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231005141239.132783-1-adrian.larumbe@collabora.com
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Johannes Zink authored
Some panels support multiple LVDS data mapping formats, which can be used e.g. run displays on jeida-18 format when only 3 LVDS lanes are available. Add parsing of an optional data-mapping devicetree property, which also touches up the bits per color to match the bus format. Signed-off-by:
Johannes Zink <j.zink@pengutronix.de> Link: https://lore.kernel.org/r/20230523-simplepanel_support_nondefault_datamapping-v5-3-0d7928edafab@pengutronix.deSigned-off-by:
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Johannes Zink authored
Some Displays support more than just a single default LVDS data mapping, which can be used to run displays on only 3 LVDS lanes in the jeida-18 data-mapping mode. Add an optional data-mapping property to allow overriding the default data mapping. As it does not generally apply to any display and bus, use it selectively on the innolux,g101ice-l01, which supports changing the data mapping via a strapping pin. Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Signed-off-by:
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Johannes Zink authored
As the LVDS data-mapping property is required in multiple bindings: move it to separate file and include instead of duplicating it. Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Michael Tretter authored
Calculating the byte_clk in kHz is imprecise for a hs_clock of 55687500 Hz, which may be used with a pixel clock of 74.25 MHz with mode 1920x1080-30. Fix the calculation by using HZ instead of kHZ. This requires to change the type to u64 to prevent overflows of the integer type. Reviewed-by: Adam Ford <aford173@gmail.com> #imx8mm-beacon Tested-by: Adam Ford <aford173@gmail.com> #imx8mm-beacon Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de> # Kontron BL i.MX8MM + Waveshare 10.1inch HDMI LCD (E) Reviewed-by:
Marco Felsch <m.felsch@pengutronix.de> Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20230818-samsung-dsim-v2-5-846603df0e0a@pengutronix.deSigned-off-by:
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Michael Tretter authored
Rounding the porches up instead of down fixes the samsung-dsim at some more resolutions and refresh rates: The following resolutions are working with rounded-up porches, but don't work when the porches are rounded down: 1920x1080-59.94 1920x1080-30.00 1920x1080-29.97 1920x1080-25.00 1680x1050-59.88 1280x1024-75.02 1200x960-59.99 1280x720-50.00 1024x768-75.03 1024x768-60.00 640x480-60.00 640x480-59.94 Reviewed-by: Adam Ford <aford173@gmail.com> #imx8mm-beacon Tested-by: Adam Ford <aford173@gmail.com> #imx8mm-beacon Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de> # Kontron BL i.MX8MM + Waveshare 10.1inch HDMI LCD (E) Reviewed-by:
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Michael Tretter authored
The PLL requires a clock frequency in a certain platform-dependent range after the pre-divider. The reference clock for the PLL may change due to changes to it's parent clock. Thus, the frequency may be out of range or unsuited for generating the high speed clock for MIPI DSI. Try to keep the pre-devider small, and set the reference clock close to the upper limit before recalculating the PLL configuration. Use a divider with a power of two for the reference clock as this seems to work best in my tests. Reviewed-by:
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Michael Tretter authored
The PLL reference clock may change at runtime when its parent clock changes. For example, this may happen on the i.MX8M Nano if the reference clock is a child of the Video PLL. If the pixel clock changes, this may propagate to the Video PLL and as a side effect change the reference clock. Thus, reading the clock rate during probe is not sufficient to correctly configure the PLL for the expected hs clock. Read the actual rate of the reference clock before calculating the PLL configuration parameters. Note that the "samsung,pll-clock-frequency" is always preferred and PLL reference clock is only read from the clock tree if that device tree property is not set. Reviewed-by:
Inki Dae <inki.dae@samsung.com> Acked-by:
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Marco Felsch authored
Since the MIPI configuration can be changed on demand it is very useful to print more MIPI settings during the MIPI device attach step. Signed-off-by:
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- 06 Oct, 2023 1 commit
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Uwe Kleine-König authored
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). samsung_dsim_remove() returned 0 unconditionally. Make it return void instead to convert the two related platform drivers to use .remove_new(). Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by:
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- 05 Oct, 2023 4 commits
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Wayne Lin authored
[Why] Unplug mst hub will cause warning. That's because dm_helpers_construct_old_payload() is changed to be called after payload removement from dc link. In dm_helpers_construct_old_payload(), We refer to the vcpi in payload allocation table of dc link to construct the old payload and payload is no longer in the table when we call the function now. [How] Refer to the mst_state to construct the number of time slot for old payload now. Note that dm_helpers_construct_old_payload() is just a quick workaround before and we are going to abandon it soon. Fixes: 5aa1dfcd ("drm/mst: Refactor the flow for payload allocation/removement") Reviewed-by:
Jerry Zuo <jerry.zuo@amd.com> Signed-off-by:
Wayne Lin <Wayne.Lin@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231005080405.169841-1-Wayne.Lin@amd.com
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Chris Morgan authored
Add support for the Anbernic 351V. Just like the 353 series the underlying vendor is unknown/unmarked (at least not visible in a non-destructive manner). The panel had slightly different init sequences and timings in the BSP kernel, but works fine with the same ones used in the existing driver. The panel will not work without the inclusion of the MIPI_DSI_CLOCK_NON_CONTINUOUS flag, and this flag prevents the 353 series from working correctly, so a new compatible string is added. Tested colors and timings using modetest and all seem to work identical to the 353 otherwise. Signed-off-by:
Chris Morgan <macromorgan@hotmail.com> Reviewed-by:
Jessica Zhang <quic_jesszhan@quicinc.com> Link: https://lore.kernel.org/r/20231003163355.143704-3-macroalpha82@gmail.comSigned-off-by:
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Chris Morgan authored
Document the Anbernic RG351V panel, which is identical to the panel used in their 353 series except for in inclusion of an additional DSI format flag. Signed-off-by:
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Jani Nikula authored
Prefer struct drm_edid where possible. With limited users for the drm_dp_downstream_*() helpers, this is fairly straightforward. Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231004162149.2802113-1-jani.nikula@intel.com
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