- 09 Jan, 2024 4 commits
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xiazhengqiao authored
To have better compatibility for DP sink, there is a retry mechanism for the link training process to switch between different training process. The original driver code doesn't reset the retry counter when training state is pass. If the system triggers link training over 3 times, there will be a chance to causes the driver to use the wrong training method and return a training fail result. To Fix this, we reset the retry counter when training state is pass each time. Signed-off-by:
Allen Chen <allen.chen@ite.corp-partner.google.com> Signed-off-by:
xiazhengqiao <xiazhengqiao@huaqin.corp-partner.google.com> Reviewed-by:
Robert Foss <rfoss@kernel.org> Signed-off-by:
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Dario Binacchi authored
The initialization commands are taken from the STMicroelectronics driver found at [1]. To ensure backward compatibility, flags have been added to enable gamma correction setting and display control. In other cases, registers have been set to their default values according to the specifications found in the datasheet. [1] https://github.com/STMicroelectronics/STM32CubeF7/blob/master/Drivers/BSP/Components/nt35510/Signed-off-by:
Dario Binacchi <dario.binacchi@amarulasolutions.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240108201618.2798649-9-dario.binacchi@amarulasolutions.com
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Dario Binacchi authored
This patch, preparatory for future developments, move the hardwired parameters to configuration data to allow the addition of new NT35510-based panels. Signed-off-by:
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Dario Binacchi authored
The patch adds the FRIDA FRD400B25025-A-CTK panel, which belongs to the Novatek NT35510-based panel family. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by:
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- 08 Jan, 2024 12 commits
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Hsin-Yi Wang authored
Some edp panel requires T10 (Delay from end of valid video data transmitted by the Source device to power-off) less than 500ms. Using autosuspend with delay set as 1000 violates this requirement. Use put_sync_suspend in unprepare to meet the spec. For other cases (such as getting EDID), it still uses autosuspend. Suggested-by:
Douglas Anderson <dianders@chromium.org> Fixes: 3235b0f2 ("drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare") Signed-off-by:
Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by:
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Vegard Nossum authored
As of commit b77fdd6a ("scripts/kernel-doc: restore warning for Excess struct/union"), we see the following warnings when running 'make htmldocs': ./include/uapi/drm/nouveau_drm.h:292: warning: Excess struct member 'DRM_NOUVEAU_VM_BIND_OP_MAP' description in 'drm_nouveau_vm_bind_op' ./include/uapi/drm/nouveau_drm.h:292: warning: Excess struct member 'DRM_NOUVEAU_VM_BIND_OP_UNMAP' description in 'drm_nouveau_vm_bind_op' ./include/uapi/drm/nouveau_drm.h:292: warning: Excess struct member 'DRM_NOUVEAU_VM_BIND_SPARSE' description in 'drm_nouveau_vm_bind_op' ./include/uapi/drm/nouveau_drm.h:336: warning: Excess struct member 'DRM_NOUVEAU_VM_BIND_RUN_ASYNC' description in 'drm_nouveau_vm_bind' The problem is that these values are #define constants, but had kerneldoc comments attached to them as if they were actual struct members. There are a number of ways we could fix this, but I chose to draw inspiration from include/uapi/drm/i915_drm.h, which pulls them into the corresponding kerneldoc comment for the struct member that they are intended to be used with. To keep the diff readable, there are a number of things I _didn't_ do in this patch, but which we should also consider: - This is pretty good documentation, but it ends up in gpu/driver-uapi, which is part of subsystem-apis/ when it really ought to display under userspace-api/ (the "Linux kernel user-space API guide" book of the documentation). - More generally, we might want a warning if include/uapi/ files are kerneldoc'd outside userspace-api/. - I'd consider it cleaner if the #defines appeared between the kerneldoc for the member and the member itself (which is something other DRM- related UAPI docs do). - The %IDENTIFIER kerneldoc syntax is intended for "constants", and is more appropriate in this context than ``IDENTIFIER`` or &IDENTIFIER. The DRM docs aren't very consistent on this. Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
Vegard Nossum <vegard.nossum@oracle.com> Reviewed-by:
Randy Dunlap <rdunlap@infradead.org> Tested-by:
Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231225065145.3060754-1-vegard.nossum@oracle.com
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Randy Dunlap authored
Change kernel-doc "/**" comments to common "/*" comments to prevent kernel-doc warnings: gk20a.c:49: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * cvb_mv = ((c2 * speedo / s_scale + c1) * speedo / s_scale + c0) gk20a.c:49: warning: missing initial short description on line: * cvb_mv = ((c2 * speedo / s_scale + c1) * speedo / s_scale + c0) gk20a.c:62: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * cvb_t_mv = gk20a.c:62: warning: missing initial short description on line: * cvb_t_mv = Signed-off-by:
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Randy Dunlap authored
Change kernel-doc "/**" comments to common "/*" comments to prevent kernel-doc warnings: gf100.c:1044: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Wait until GR goes idle. GR is considered idle if it is disabled by the gf100.c:1044: warning: missing initial short description on line: * Wait until GR goes idle. GR is considered idle if it is disabled by the Signed-off-by:
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Randy Dunlap authored
Change kernel-doc "/**" comments to common "/*" comments to prevent kernel-doc warnings: nouveau_ioc32.c:2: warning: Cannot understand * \file mga_ioc32.c on line 2 - I thought it was a doc line nouveau_ioc32.c:52: warning: Function parameter or member 'filp' not described in 'nouveau_compat_ioctl' nouveau_ioc32.c:52: warning: Function parameter or member 'cmd' not described in 'nouveau_compat_ioctl' nouveau_ioc32.c:52: warning: Function parameter or member 'arg' not described in 'nouveau_compat_ioctl' nouveau_ioc32.c:52: warning: expecting prototype for Called whenever a 32-bit process running under a 64(). Prototype was for nouveau_compat_ioctl() instead Signed-off-by:
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Randy Dunlap authored
Change kernel-doc "/**" comments to common "/*" comments to prevent kernel-doc warnings: crtc.c:453: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Sets up registers for the given mode/adjusted_mode pair. crtc.c:453: warning: missing initial short description on line: * Sets up registers for the given mode/adjusted_mode pair. crtc.c:629: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Sets up registers for the given mode/adjusted_mode pair. crtc.c:629: warning: missing initial short description on line: * Sets up registers for the given mode/adjusted_mode pair. Signed-off-by:
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Randy Dunlap authored
The "/**" comments in this file are not kernel-doc comments. They are used on static functions which can have kernel-doc comments, but that is not the primary focus of kernel-doc comments. Since these comments are incomplete for kernel-doc notation, remove the kernel-doc "/**" markers and make them common comments. This prevents scripts/kernel-doc from issuing 68 warnings: init.c:584: warning: Function parameter or member 'init' not described in 'init_reserved' and 67 warnings like this one: init.c:611: warning: expecting prototype for INIT_DONE(). Prototype was for init_done() instead Signed-off-by:
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Jani Nikula authored
Remove the unused drm_connector_helper_get_modes_from_ddc() function. Most drivers should probably have this functionality split to detect and get modes parts, so the helper is not the best abstraction. Suggested-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
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Jani Nikula authored
Convert mgag200_vga_connector_helper_get_modes() to use struct drm_edid based functions directly. Suggested-by:
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Thomas Zimmermann authored
I/O video memory for the framebuffer supports write-combine caching mode. Simplify the driver's code that sets up the caching mode. * Map video memory with ioremap_wc(), which automatically sets up the PAT entry with write-combine caching. * Remove the now obsolete call to devm_arch_io_reserve_memtype_wc(). It is only required to mmap the video memory to user space, which the driver doesn't do. * According to the PAT documentation, arch_phys_wc_add() is best called after remapping I/O memory, so move it after ioremap. Signed-off-by:
Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240105082714.21881-1-tzimmermann@suse.de
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Markus Elfring authored
Return an error code without storing it in an intermediate variable. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Link: https://patchwork.freedesktop.org/patch/msgid/85f8004e-f0c9-42d9-8c59-30f1b4e0b89e@web.deReviewed-by:
Luben Tuikov <ltuikov89@gmail.com> Signed-off-by:
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Markus Elfring authored
The kfree() function was called in one case by the drm_sched_init() function during error handling even if the passed data structure member contained a null pointer. This issue was detected by using the Coccinelle software. Thus adjust a jump target. Signed-off-by:
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- 05 Jan, 2024 2 commits
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Javier Martinez Canillas authored
The helper is generic, it doesn't use the opaque EDID type struct drm_edid and is also used by drivers that only support non-probeable displays such as fixed panels. These drivers add a list of modes using drm_mode_probed_add() and then set a preferred mode using the drm_set_preferred_mode() helper. It seems more logical to have the helper definition in drm_modes.o instead of drm_edid.o, since the former contains modes helper while the latter has helpers to manage the EDID information. Since both drm_edid.o and drm_modes.o object files are built-in the drm.o object, there are no functional changes. But besides being a more logical place for this helper, it could also allow to eventually make drm_edid.o optional and not included in drm.o if only fixed panels must be supported in a given system. Signed-off-by:
Javier Martinez Canillas <javierm@redhat.com> Reviewed-by:
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Jani Nikula authored
There's no need to include either linux/hdmi.h or drm/drm_mode.h. They can be removed by using forward declarations. While at it, group the forward declarations together, and remove the unnecessary ones. Signed-off-by:
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- 04 Jan, 2024 14 commits
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Quentin Schulz authored
This is only a cosmetic change. This replaces a hand-crafted EPROBE_DEFER handling for deciding to print an error message with dev_err_probe. A side-effect is that dev_err_probe also adds a debug message when it's not EPROBE_DEFER, but this is seen as an improvement. Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
Quentin Schulz <quentin.schulz@theobroma-systems.com> Reviewed-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240104-ltk-dev_err_probe-v1-2-8ef3c0b585d8@theobroma-systems.com
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Quentin Schulz authored
devm_gpiod_get_optional may return EPROBE_DEFER in case the GPIO controller isn't yet probed when the panel driver is being probed. In that case, a spurious and confusing error message about not being able to get the reset GPIO is printed even though later on the device actually manages to get probed. Use dev_err_probe instead so that the message is only printed when it truly matters. Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
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Quentin Schulz authored
This scary message can misled the user into thinking something bad has happened and needs to be fixed, however it could simply be part of a normal boot process where EPROBE_DEFER is taken into account. Therefore, let's use dev_err_probe so that this message doesn't get shown (by default) when the return code is EPROBE_DEFER. Fixes: 34cc0aa2 ("drm/rockchip: Add support for Rockchip Soc LVDS") Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
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Quentin Schulz authored
ret variable stores the return value of drm_of_find_panel_or_bridge which can return error codes different from EPROBE_DEFER. Therefore, let's just return that error code instead of forcing it to EPROBE_DEFER. Fixes: 34cc0aa2 ("drm/rockchip: Add support for Rockchip Soc LVDS") Cc: Quentin Schulz <foss+kernel@0leil.net> Signed-off-by:
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Alex Bee authored
Now that we have proper pixelclock-based mode validation we can drop the custom fill_modes hook. CRTC size validation for the display controller has been added with Commit 8e140cb6 ("drm/rockchip: vop: limit maximum resolution to hardware capabilities") Signed-off-by:
Alex Bee <knaerzche@gmail.com> Reviewed-by:
Maxime Ripard <mripard@kernel.org> Signed-off-by:
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Alex Bee authored
As per TRM this controller supports pixelclocks starting from 25 MHz. The maximum supported pixelclocks are defined by the phy configurations we have. Also it can't support modes that require doubled clocks. If the variant has a phy reference clock we can additionally validate against VESA DMT'srecommendations. Signed-off-by:
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Alex Bee authored
This variant requires the phy reference clock to be enabled before the DDC block can work and the (initial) DDC bus frequency is calculated based on the rate of this clock. Besides the only difference is phy configuration required to make the driver working for this variant as well. Signed-off-by:
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Alex Bee authored
In preparation to support RK3128's integration of the controller, this patch adds a simple variant implementation. They mainly differ in the phy configuration required, so those are part of the match_data. The values have been taken from downstream. The pixelclocks in there are meant to be max-inclusive. Signed-off-by:
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Lucas Stach authored
The VOP2 driver needs this port ID to properly configure the display data routing. Signed-off-by:
Lucas Stach <l.stach@pengutronix.de> Signed-off-by:
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Zack Rusin authored
Switch to a new plane state requires unreferencing of all held surfaces. In the work required for mob cursors the mapped surfaces started being cached but the variable indicating whether the surface is currently mapped was not being reset. This leads to crashes as the duplicated state, incorrectly, indicates the that surface is mapped even when no surface is present. That's because after unreferencing the surface it's perfectly possible for the plane to be backed by a bo instead of a surface. Reset the surface mapped flag when unreferencing the plane state surface to fix null derefs in cleanup. Fixes crashes in KDE KWin 6.0 on Wayland: Oops: 0000 [#1] PREEMPT SMP PTI CPU: 4 PID: 2533 Comm: kwin_wayland Not tainted 6.7.0-rc3-vmwgfx #2 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 RIP: 0010:vmw_du_cursor_plane_cleanup_fb+0x124/0x140 [vmwgfx] Code: 00 00 00 75 3a 48 83 c4 10 5b 5d c3 cc cc cc cc 48 8b b3 a8 00 00 00 48 c7 c7 99 90 43 c0 e8 93 c5 db ca 48 8b 83 a8 00 00 00 <48> 8b 78 28 e8 e3 f> RSP: 0018:ffffb6b98216fa80 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff969d84cdcb00 RCX: 0000000000000027 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff969e75f21600 RBP: ffff969d4143dc50 R08: 0000000000000000 R09: ffffb6b98216f920 R10: 0000000000000003 R11: ffff969e7feb3b10 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000027b R15: ffff969d49c9fc00 FS: 00007f1e8f1b4180(0000) GS:ffff969e75f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000104006004 CR4: 00000000003706f0 Call Trace: <TASK> ? __die+0x23/0x70 ? page_fault_oops+0x171/0x4e0 ? exc_page_fault+0x7f/0x180 ? asm_exc_page_fault+0x26/0x30 ? vmw_du_cursor_plane_cleanup_fb+0x124/0x140 [vmwgfx] drm_atomic_helper_cleanup_planes+0x9b/0xc0 commit_tail+0xd1/0x130 drm_atomic_helper_commit+0x11a/0x140 drm_atomic_commit+0x97/0xd0 ? __pfx___drm_printfn_info+0x10/0x10 drm_atomic_helper_update_plane+0xf5/0x160 drm_mode_cursor_universal+0x10e/0x270 drm_mode_cursor_common+0x102/0x230 ? __pfx_drm_mode_cursor2_ioctl+0x10/0x10 drm_ioctl_kernel+0xb2/0x110 drm_ioctl+0x26d/0x4b0 ? __pfx_drm_mode_cursor2_ioctl+0x10/0x10 ? __pfx_drm_ioctl+0x10/0x10 vmw_generic_ioctl+0xa4/0x110 [vmwgfx] __x64_sys_ioctl+0x94/0xd0 do_syscall_64+0x61/0xe0 ? __x64_sys_ioctl+0xaf/0xd0 ? syscall_exit_to_user_mode+0x2b/0x40 ? do_syscall_64+0x70/0xe0 ? __x64_sys_ioctl+0xaf/0xd0 ? syscall_exit_to_user_mode+0x2b/0x40 ? do_syscall_64+0x70/0xe0 ? exc_page_fault+0x7f/0x180 entry_SYSCALL_64_after_hwframe+0x6e/0x76 RIP: 0033:0x7f1e93f279ed Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff f> RSP: 002b:00007ffca0faf600 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000055db876ed2c0 RCX: 00007f1e93f279ed RDX: 00007ffca0faf6c0 RSI: 00000000c02464bb RDI: 0000000000000015 RBP: 00007ffca0faf650 R08: 000055db87184010 R09: 0000000000000007 R10: 000055db886471a0 R11: 0000000000000246 R12: 00007ffca0faf6c0 R13: 00000000c02464bb R14: 0000000000000015 R15: 00007ffca0faf790 </TASK> Modules linked in: snd_seq_dummy snd_hrtimer nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_ine> CR2: 0000000000000028 ---[ end trace 0000000000000000 ]--- RIP: 0010:vmw_du_cursor_plane_cleanup_fb+0x124/0x140 [vmwgfx] Code: 00 00 00 75 3a 48 83 c4 10 5b 5d c3 cc cc cc cc 48 8b b3 a8 00 00 00 48 c7 c7 99 90 43 c0 e8 93 c5 db ca 48 8b 83 a8 00 00 00 <48> 8b 78 28 e8 e3 f> RSP: 0018:ffffb6b98216fa80 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff969d84cdcb00 RCX: 0000000000000027 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff969e75f21600 RBP: ffff969d4143dc50 R08: 0000000000000000 R09: ffffb6b98216f920 R10: 0000000000000003 R11: ffff969e7feb3b10 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000027b R15: ffff969d49c9fc00 FS: 00007f1e8f1b4180(0000) GS:ffff969e75f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000104006004 CR4: 00000000003706f0 Signed-off-by:
Zack Rusin <zack.rusin@broadcom.com> Fixes: 485d98d4 ("drm/vmwgfx: Add support for CursorMob and CursorBypass 4") Reported-by:
Stefan Hoffmeister <stefan.hoffmeister@econos.de> Closes: https://gitlab.freedesktop.org/drm/misc/-/issues/34 Cc: Martin Krastev <martin.krastev@broadcom.com> Cc: Maaz Mombasawala <maaz.mombasawala@broadcom.com> Cc: Ian Forbes <ian.forbes@broadcom.com> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com> Cc: dri-devel@lists.freedesktop.org Cc: <stable@vger.kernel.org> # v5.19+ Acked-by:
Maaz Mombasawala <maaz.mombasawala@broadcom.com> Reviewed-by:
Martin Krastev <martin.krastev@broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231224052540.605040-1-zack.rusin@broadcom.com
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Randy Dunlap authored
Fix a new kernel-doc warning reported by kernel test robot: vmwgfx_surface.c:55: warning: Excess struct member 'base' description in 'vmw_user_surface' The other warning is not correct: it is confused by "__counted_by". Kees has made a separate patch for that. In -Wall mode, kernel-doc still reports 20 warnings of this nature: vmwgfx_surface.c:198: warning: No description found for return value of 'vmw_surface_dma_size' but I am not addressing those. Signed-off-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202312150701.kNI9LuM3-lkp@intel.com/ Cc: Kees Cook <keescook@chromium.org> Cc: Zack Rusin <zackr@vmware.com> Cc: VMware Graphics Reviewers <linux-graphics-maintainer@vmware.com> Cc: dri-devel@lists.freedesktop.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
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Zhipeng Lu authored
When ida_alloc_max fails, resources allocated before should be freed, including *res allocated by kmalloc and ttm_resource_init. Fixes: d3bcb4b0 ("drm/vmwgfx: switch the TTM backends to self alloc") Signed-off-by:
Zhipeng Lu <alexious@zju.edu.cn> Signed-off-by:
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Randy Dunlap authored
kernel test robot reports one kernel-doc warning in stdu, but running scripts/kernel-doc in -Wall mode reports several more, so fix all of them at one time: vmwgfx_stdu.c:76: warning: Excess struct member 'transfer' description in 'vmw_stdu_dirty' vmwgfx_stdu.c:103: warning: missing initial short description on line: * struct vmw_screen_target_display_unit vmwgfx_stdu.c:215: warning: No description found for return value of 'vmw_stdu_bind_st' vmwgfx_stdu.c:320: warning: No description found for return value of 'vmw_stdu_destroy_st' vmwgfx_stdu.c:551: warning: No description found for return value of 'vmw_kms_stdu_readback' vmwgfx_stdu.c:719: warning: No description found for return value of 'vmw_kms_stdu_surface_dirty' vmwgfx_stdu.c:895: warning: No description found for return value of 'vmw_stdu_primary_plane_prepare_fb' vmwgfx_stdu.c:1470: warning: No description found for return value of 'vmw_stdu_init' Signed-off-by:
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Ghanshyam Agrawal authored
Fix typos in vmwgfx_execbuf.c. Signed-off-by:
Ghanshyam Agrawal <ghanshyam1898@gmail.com> Signed-off-by:
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- 03 Jan, 2024 1 commit
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Andy Shevchenko authored
While making a spelling mistake myself for `git grep kvalloc` I found that the only file has such a typo. Fix it and update to the standard de facto of how we refer to the functions. Also spell usr-out as user-out, it seems this driver uses its own terminology nobody else can decypher, make it more readable. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231219151955.2477488-1-andriy.shevchenko@linux.intel.com
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- 02 Jan, 2024 5 commits
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Dario Binacchi authored
The Makefile enables/disables the file compilation depending on CONFIG_DEBUG_FS. Signed-off-by:
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Harry Wentland authored
When the floor LUT index (drm_fixp2int(lut_index) is the last index of the array the ceil LUT index will point to an entry beyond the array. Make sure we guard against it and use the value of the floor LUT index. v3: - Drop bits from commit description that didn't contribute anything of value Fixes: db1f254f ("drm/vkms: Add support to 1D gamma LUT") Signed-off-by:
Harry Wentland <harry.wentland@amd.com> Cc: Arthur Grillo <arthurgrillo@riseup.net> Reviewed-by:
Arthur Grillo <arthurgrillo@riseup.net> Reviewed-by:
Melissa Wen <mwen@igalia.com> Signed-off-by:
Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108163647.106853-6-harry.wentland@amd.com
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Harry Wentland authored
This aligns with most other DRM drivers and will allow us to add new VKMS config options without polluting the DRM Kconfig. v3: - Change SPDX to GPL-2.0-only to match DRM KConfig SPDX (Simon) Signed-off-by:
Simon Ser <contact@emersion.fr> Signed-off-by:
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Harry Wentland authored
Unit testing this in VKMS shows that passing 0 into this function returns -1, which is highly counter- intuitive. Fix it by checking whether the input is >= 0 instead of > 0. Fixes: 64566b5e ("drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil") Signed-off-by:
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Simon Ser authored
Bubble up any error to the caller. Signed-off-by:
Maíra Canal <mcanal@igalia.com> Signed-off-by:
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- 01 Jan, 2024 2 commits
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Javier Martinez Canillas authored
The Solomon SSD133x controllers (such as the SSD1331) are used by RGB dot matrix OLED panels, add a modesetting pipeline to support the chip family. The SSD133x controllers support 256 (8-bit) and 65k (16-bit) color depths but only the 256-color mode (DRM_FORMAT_RGB332) is implemented for now. Signed-off-by:
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Javier Martinez Canillas authored
Add a Device Tree binding schema for the OLED panels based on the Solomon SSD133x family of controllers. Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231229112026.2797483-4-javierm@redhat.com
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