- 25 Mar, 2021 4 commits
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Jiapeng Chong authored
Fix the following coccicheck warning: drivers/gpu/drm/bridge/lontium-lt9611uxc.c:858:8-16: WARNING: use scnprintf or sprintf. Reported-by: Abaci Robot<abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reviewed-by:
Robert Foss <robert.foss@linaro.org> Signed-off-by:
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Robert Foss authored
4k requires two dsi pipes, so don't report MODE_OK when only a single pipe is configured. But rather report MODE_PANEL to signal that requirements of the panel are not being met. Reported-by:
Peter Collingbourne <pcc@google.com> Suggested-by:
John Stultz <john.stultz@linaro.org> Tested-by:
Anibal Limon <anibal.limon@linaro.org> Tested-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by:
Vinod Koul <vkoul@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201217140933.1133969-1-robert.foss@linaro.org
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Robert Foss authored
Add myself as co-maintainer of DRM Bridge Drivers. Repository commit access has already been granted. https://gitlab.freedesktop.org/freedesktop/freedesktop/-/issues/338Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Acked-by:
Maxime Ripard <maxime@cerno.tech> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Andrzej Hajda <a.hajda@samsung.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Jernej Škrabec <jernej.skrabec@siol.net> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210325145154.1433060-1-robert.foss@linaro.org
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Dmitry Vyukov authored
vkms_vblank_simulate() uses WARN_ON for timing-dependent condition (timer overrun). This is a mis-use of WARN_ON, WARN_ON must be used to denote kernel bugs. Use pr_warn() instead. Signed-off-by:
Dmitry Vyukov <dvyukov@google.com> Reported-by: syzbot+4fc21a003c8332eb0bdd@syzkaller.appspotmail.com Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Cc: Melissa Wen <melissa.srw@gmail.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Acked-by:
Melissa Wen <melissa.srw@gmail.com> Signed-off-by:
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- 24 Mar, 2021 8 commits
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Christian König authored
Instead of having a global lock for potentially less contention. Signed-off-by:
Christian König <christian.koenig@amd.com> Tested-by:
Nirmoy Das <nirmoy.das@amd.com> Reviewed-by:
Huang Rui <ray.huang@amd.com> Reviewed-by:
Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/424010/
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Christian König authored
Instead evict round robin from each devices SYSTEM and TT domain. v2: reorder num_pages access reported by Dan's script v3: fix rebase fallout, num_pages should be 32bit Signed-off-by:
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Christian König authored
Move the iteration of the global lru into the new function ttm_global_swapout() and use that instead in drivers. v2: consistently return int v3: fix build fail Signed-off-by:
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Dario Binacchi authored
The warning message did not printed the LCD pixel clock rate but the LCD clock divisor input rate. As a consequence, the required and real pixel clock rates are now passed to the tilcdc_pclk_diff(). Signed-off-by:
Dario Binacchi <dariobin@libero.it> Reviewed-by:
Jyri Sarha <jyri.sarha@iki.fi> Reviewed-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by:
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Dario Binacchi authored
The tilcdc_pclk_diff() compares the requested pixel clock rate to the real one, so passing it clk_rate instead of clk_rate / clkdiv caused it to fail even if the clk_rate was properly set. Adding the real_pclk_rate variable makes the code more readable. Signed-off-by:
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Dario Binacchi authored
The req_rate name is a little misleading, so let's rename to pclk_rate (pixel clock rate). Signed-off-by:
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Yang Li authored
./drivers/gpu/drm/tilcdc/tilcdc_panel.c:402:3-8: No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Signed-off-by:
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Maxime Ripard authored
Commit 977697e2 ("drm/atomic: Pass the full state to planes atomic disable and update") added the old_state variable instead of what used to be a parameter, but it also removed the sole user of that variable in the vop_plane_atomic_update function leading to an usused variable. Remove it. Fixes: 977697e2 ("drm/atomic: Pass the full state to planes atomic disable and update") Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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- 23 Mar, 2021 12 commits
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Lyude Paul authored
Just another drive-by fix I noticed while going through the tree to cleanup DP aux adapter registration - make sure we unregister the DP AUX dev if analogix_dp_probe() fails. Signed-off-by:
Lyude Paul <lyude@redhat.com> Reviewed-by:
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Lyude Paul authored
Another drive-by fix I found when fixing DP AUX adapter across the kernel tree - make sure we don't leak resources (and by proxy-AUX adapters) on failures in anx6345_bridge_attach() by unrolling on errors. Signed-off-by:
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Lyude Paul authored
Another case of linking an encoder to a connector after the connector's been registered. The proper place to do this is before connector registration, so let's fix that. Signed-off-by:
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Lyude Paul authored
Another driver I found that seems to forget to unregister it's DP AUX device. Let's fix this by adding anx6345_bridge_detach(). Signed-off-by:
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Lyude Paul authored
Just another issue I noticed while correcting usages of drm_dp_aux_init()/drm_dp_aux_register() around the tree. If any of the steps in anx78xx_bridge_attach() fail, we end up leaking resources. So, let's fix that (and fix leaking a DP AUX adapter in the process) by unrolling on errors. Signed-off-by:
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Lyude Paul authored
Since encoder mappings for connectors are exposed to userspace, we should be attaching the encoder before exposing the connector to userspace. Just a drive-by fix for an issue I noticed while fixing up usages of drm_dp_aux_init()/drm_dp_aux_register() across the tree. Signed-off-by:
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Lyude Paul authored
Surprisingly, this bridge actually registers it's AUX adapter at the correct time already. Nice job! However, it does forget to actually unregister the AUX adapter, so let's add a bridge function to handle that. Signed-off-by:
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Lyude Paul authored
Since we're about to add a back-pointer to drm_dev in drm_dp_aux, let's move the AUX adapter registration to the first point where we know which DRM device we'll be working with - when the drm_bridge is attached. Likewise, we unregister the AUX adapter on bridge detachment by adding a ti_sn_bridge_detach() callback. Signed-off-by:
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Lyude Paul authored
Since this is a bridge, we don't start out with a respective DRM device. Likewise this means we don't have a connector, which also means that we should be following drm_dp_aux_register()'s documentation advice and not call drm_dp_aux_register() until we have a matching connector. Instead, call drm_dp_aux_init() in tc_probe() and wait until tc_bridge_attach() to register our AUX channel. We also add tc_bridge_detach() to handle unregistering the AUX adapter once the bridge has been disconnected. Signed-off-by:
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Tian Tao authored
Fix the following coccicheck warning: drivers/gpu/drm/drm_sysfs.c:172:8-16: WARNING: use scnprintf or sprintf drivers/gpu/drm/drm_sysfs.c:185:8-16: WARNING: use scnprintf or sprintf drivers/gpu/drm/drm_sysfs.c:159:8-16: WARNING: use scnprintf or sprintf Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1616375978-12151-1-git-send-email-tiantao6@hisilicon.com
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kernel test robot authored
drivers/gpu/drm/gud/gud_connector.c:658:2-3: Unneeded semicolon drivers/gpu/drm/gud/gud_connector.c:186:2-3: Unneeded semicolon drivers/gpu/drm/gud/gud_drv.c:511:3-4: Unneeded semicolon drivers/gpu/drm/gud/gud_pipe.c:127:4-5: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Fixes: 40e1a70b ("drm: Add GUD USB Display driver") Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210322174434.58849-2-noralf@tronnes.org
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kernel test robot authored
drivers/gpu/drm/gud/gud_connector.c:710:37-43: ERROR: application of sizeof to pointer sizeof when applied to a pointer typed expression gives the size of the pointer Generated by: scripts/coccinelle/misc/noderef.cocci Fixes: 40e1a70b ("drm: Add GUD USB Display driver") Reported-by:
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- 22 Mar, 2021 2 commits
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Arnd Bergmann authored
Building with W=1 shows a few warnings for an empty macro: drivers/gpu/drm/qxl/qxl_drv.c: In function 'qxl_pci_probe': drivers/gpu/drm/qxl/qxl_drv.c:131:50: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 131 | vga_put(pdev, VGA_RSRC_LEGACY_IO); | ^ drivers/gpu/drm/qxl/qxl_drv.c: In function 'qxl_pci_remove': drivers/gpu/drm/qxl/qxl_drv.c:159:50: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 159 | vga_put(pdev, VGA_RSRC_LEGACY_IO); Change this to an inline function to make it more robust and avoid the warning. Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Arnd Bergmann authored
Building with 'make W=1' shows a few harmless warnings: drivers/video/fbdev/omap2/omapfb/omapfb-main.c: In function 'omapfb_calc_addr': drivers/video/fbdev/omap2/omapfb/omapfb-main.c:823:56: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 823 | var->xoffset, var->yoffset, offset); | ^ drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c: In function 'omapfb_ioctl': drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c:911:45: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 911 | DBG("ioctl failed: %d\n", r); Avoid these by using no_printk(), which adds format string checking as well. Signed-off-by:
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- 19 Mar, 2021 2 commits
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Yang Li authored
This fixes the following sparse warnings: drivers/gpu/drm/gma500/psb_drv.c:303:56: warning: Using plain integer as NULL pointer Reported-by:
Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/1615969652-80225-1-git-send-email-yang.lee@linux.alibaba.com
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Bhaskar Chowdhury authored
s/initialy/initially/ s/desined/designed/ Signed-off-by:
Bhaskar Chowdhury <unixbhaskar@gmail.com> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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- 18 Mar, 2021 1 commit
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Bhaskar Chowdhury authored
s/instatiated/instantiated/ s/unreference/unreferenced/ Signed-off-by:
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- 16 Mar, 2021 8 commits
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Christian König authored
Instead of swapping bo->mem just give old and new as parameters. Also drop unused parameters and code. v2: cleanup stale documentation as well. Signed-off-by:
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Christian König authored
Just another leftover from a TTM cleanup. Signed-off-by:
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Christian König authored
Remove the unused evict parameter and drop swapping bo->mem. Signed-off-by:
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Noralf Trønnes authored
This adds a USB display driver with the intention that it can be used with future USB interfaced low end displays/adapters. The Linux gadget device driver will serve as the canonical device implementation. The following DRM properties are supported: - Plane rotation - Connector TV properties There is also support for backlight brightness exposed as a backlight device. Display modes can be made available to the host driver either as DRM display modes or through EDID. If both are present, EDID is just passed on to userspace. Performance is preferred over color depth, so if the device supports RGB565, DRM_CAP_DUMB_PREFERRED_DEPTH will return 16. If the device transfer buffer can't fit an uncompressed framebuffer update, the update is split up into parts that do fit. Optimal user experience is achieved by providing damage reports either by setting FB_DAMAGE_CLIPS on pageflips or calling DRM_IOCTL_MODE_DIRTYFB. LZ4 compression is used if the device supports it. The driver supports a one bit monochrome transfer format: R1. This is not implemented in the gadget driver. It is added in preparation for future monochrome e-ink displays. The driver is MIT licensed to smooth the path for any BSD port of the driver. v2: - Use devm_drm_dev_alloc() and drmm_mode_config_init() - drm_fbdev_generic_setup: Use preferred_bpp=0, 16 was a copy paste error - The drm_backlight_helper is dropped, copy in the code - Support protocol version backwards compatibility for device v3: - Use donated Openmoko USB pid - Use direct compression from framebuffer when pitch matches, not only on full frames, so split updates can benefit - Use __le16 in struct gud_drm_req_get_connector_status - Set edid property when the device only provides edid - Clear compression fields in struct gud_drm_req_set_buffer - Fix protocol version negotiation - Remove mode->vrefresh, it's calculated v4: - Drop the status req polling which was a workaround for something that turned out to be a dwc2 udc driver problem - Add a flag for the Linux gadget to require a status request on SET operations. Other devices will only get status req on STALL errors - Use protocol specific error codes (Peter) - Add a flag for devices that want to receive the entire framebuffer on each flush (Lubomir) - Retry a failed framebuffer flush - If mode has changed wait for worker and clear pending damage before queuing up new damage, fb width/height might have changed - Increase error counter on bulk transfer failures - Use DRM_MODE_CONNECTOR_USB - Handle R1 kmalloc error (Peter) - Don't try and replicate the USB get descriptor request standard for the display descriptor (Peter) - Make max_buffer_size optional (Peter), drop the pow2 requirement since it's not necessary anymore. - Don't pre-alloc a control request buffer, it was only 4k - Let gud.h describe the whole protocol explicitly and don't let DRM leak into it (Peter) - Drop display mode .hskew and .vscan from the protocol - Shorten names: s/GUD_DRM_/GUD_/ s/gud_drm_/gud_/ (Peter) - Fix gud_pipe_check() connector picking when switching connector - Drop gud_drm_driver_gem_create_object() cached is default now - Retrieve USB device from struct drm_device.dev instead of keeping a pointer - Honour fb->offsets[0] - Fix mode fetching when connector status is forced - Check EDID length reported by the device - Use drm_do_get_edid() so userspace can overrride EDID - Set epoch counter to signal connector status change - gud_drm_driver can be const now v5: - GUD_DRM_FORMAT_R1: Use non-human ascii values (Daniel) - Change name to: GUD USB Display (Thomas, Simon) - Change one __u32 -> __le32 in protocol header - Always log fb flush errors, unless the previous one failed - Run backlight update in a worker to avoid upsetting lockdep (Daniel) - Drop backlight_ops.get_brightness, there's no readback from the device so it doesn't really add anything. - Set dma mask, needed by dma-buf importers v6: - Use obj-y in Makefile (Peter) - Fix missing le32_to_cpu() when using GUD_DISPLAY_MAGIC (Peter) - Set initial brightness on backlight device v7: - LZ4_compress_default() can return zero, check for that - Fix memory leak in gud_pipe_check() error path (Peter) - Improve debug and error messages (Peter) - Don't pass length in protocol structs (Peter) - Pass USB interface to gud_usb_control_msg() et al. (Peter) - Improve gud_connector_fill_properties() (Peter) - Add GUD_PIXEL_FORMAT_RGB111 (Peter) - Remove GUD_REQ_SET_VERSION (Peter) - Fix DRM_IOCTL_MODE_OBJ_SETPROPERTY and the rotation property - Fix dma-buf import (Thomas) v8: - Forgot to filter RGB111 from reaching userspace - Handle a device that only returns unknown device properties (Peter) - s/GUD_PIXEL_FORMAT_RGB111/GUD_PIXEL_FORMAT_XRGB1111/ (Peter) - Fix R1 and XRGB1111 format conversion - Add FIXME about Big Endian being broken (Peter, Ilia) Cc: Lubomir Rintel <lkundrak@v3.sk> Acked-by:
Peter Stuge <peter@stuge.se> Tested-by:
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Noralf Trønnes authored
drm_helper_hpd_irq_event() checks the epoch counter to determine connector status change. This was introduced in commit 5186421c ("drm: Introduce epoch counter to drm_connector"). Do the same for output_poll_execute() so it can detect other changes beside connection status value changes. v2: - Add Fixes tag (Daniel) Fixes: 5186421c ("drm: Introduce epoch counter to drm_connector") Reviewed-by:
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Noralf Trønnes authored
Add a connector type for USB connected display panels. Some examples of what current userspace will name the connector: - Weston: "UNNAMED-%d" - Mutter: "Unknown20-%d" - X: "Unknown20-%d" v2: - Update drm_connector_enum_list - Add examples to commit message Acked-by:
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Maxime Ripard authored
Noralf needs some patches in 5.12-rc3, and we've been delaying the 5.12 merge due to the swap issue so it looks like a good time. Signed-off-by: -
git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
drm-misc-next for 5.13: UAPI Changes: Cross-subsystem Changes: Core Changes: - %p4cc printk format modifier - atomic: introduce drm_crtc_commit_wait, rework atomic plane state helpers to take the drm_commit_state structure - dma-buf: heaps rework to return a struct dma_buf - simple-kms: Add plate state helpers - ttm: debugfs support, removal of sysfs Driver Changes: - Convert drivers to shadow plane helpers - arc: Move to drm/tiny - ast: cursor plane reworks - gma500: Remove TTM and medfield support - mxsfb: imx8mm support - panfrost: MMU IRQ handling rework - qxl: rework to better handle resources deallocation, locking - sun4i: Add alpha properties for UI and VI layers - vc4: RPi4 CEC support - vmwgfx: doc cleanup Signed-off-by:Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210303100600.dgnkadonzuvfnu22@gilmour
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- 14 Mar, 2021 3 commits
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Linus Torvalds authored
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Alexey Dobriyan authored
Doing a prctl(PR_SET_MM, PR_SET_MM_AUXV, addr, 1); will copy 1 byte from userspace to (quite big) on-stack array and then stash everything to mm->saved_auxv. AT_NULL terminator will be inserted at the very end. /proc/*/auxv handler will find that AT_NULL terminator and copy original stack contents to userspace. This devious scheme requires CAP_SYS_RESOURCE. Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Thomas Gleixner: "A set of irqchip updates: - Make the GENERIC_IRQ_MULTI_HANDLER configuration correct - Add a missing DT compatible string for the Ingenic driver - Remove the pointless debugfs_file pointer from struct irqdomain" * tag 'irq-urgent-2021-03-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/ingenic: Add support for the JZ4760 dt-bindings/irq: Add compatible string for the JZ4760B irqchip: Do not blindly select CONFIG_GENERIC_IRQ_MULTI_HANDLER ARM: ep93xx: Select GENERIC_IRQ_MULTI_HANDLER directly irqdomain: Remove debugfs_file from struct irq_domain
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