- 22 Jun, 2022 2 commits
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Jiang Jian authored
there is an unexpected word "the" in the comments that need to be dropped file: drivers/gpu/drm/vc4/vc4_regs.h line: 267 /* Set when the the downstream tries to read from the display FIFO changed to /* Set when the downstream tries to read from the display FIFO Signed-off-by:
Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220621130550.126915-1-jiangjian@cdjrlc.com
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Jiang Jian authored
there is an unexpected word "the" in the comments that need to be dropped file: drivers/gpu/drm/drm_prime.c line: 842 * of the the buffer described by the provided sg_table. changed to * of the buffer described by the provided sg_table. Signed-off-by:
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- 21 Jun, 2022 18 commits
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Jiang Jian authored
there is an unexpected word "the" in the comments that need to be dropped file: drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c line: 1051 * have the the deepest nesting of page tables. changed to * have the deepest nesting of page tables. Signed-off-by:
Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220621133920.8112-1-jiangjian@cdjrlc.com
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Lyude Paul authored
We don't actually care about connection_mutex here anymore, so let's get rid of the comment mentioning it in this function's kdocs. Signed-off-by:
Wayne Lin <Wayne.Lin@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220602201757.30431-4-lyude@redhat.com
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Lyude Paul authored
Drive-by cleanup, we don't need to validate the port references here as we already previously went through the effort of refactoring things such that we're guaranteed to be able to access ->mstb and ->port safely from drm_dp_check_and_send_link_address(), since the only two places in the codebase that drop an MST reference in such a way that it would remove it from the topology are both protected under probe_lock. Thanks for that, past Lyude! Signed-off-by:
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Jiang Jian authored
there is an unexpected word "the" in the comments that need to be dropped file: drivers/gpu/drm/display/drm_dp_helper.c line: 1600 * Doesn't account the the "MOT" bit, and instead assumes each changed to * Doesn't account the "MOT" bit, and instead assumes eac Signed-off-by:
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Douglas Anderson authored
This implements the callback added by the patch ("drm/dp: Add wait_hpd_asserted() callback to struct drm_dp_aux"). With this change and all the two "DP AUX Endpoint" drivers changed to use wait_hpd_asserted(), we no longer need to have an long delay in the AUX transfer function. It's up to the panel code to make sure that the panel is powered now. If someone tried to call the aux transfer function without making sure the panel is powered we'll just get a normal transfer failure. We'll still keep the wait for HPD in the pre_enable() function. Though it's probably not actually needed there, this driver is used in the old mode (pre-DP AUX Endpoints) and it may be important for those cases. If nothing else, it shouldn't cause any big problems. NOTE: When handling the timeout for HPD we start the timer _after_ we've runtime resumed the device. This is definitely important for the panel on my homestar which comes up 170 ms after we start timing (the panel specifies 200 ms max). It's a little unclear how much of this extra time is due to some internal state machine in the parade firmware vs. debouncing but it seems to work for the two test cases I have to do it this way. Signed-off-by:Douglas Anderson <dianders@chromium.org> Reviewed-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220614145327.v4.4.Ie827321ce263be52fdb8c1276f6f8cc00d78029f@changeid
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Douglas Anderson authored
Let's add support for being able to read the HPD pin even if it's hooked directly to the controller. This will let us take away the waiting in the AUX transfer functions of the eDP controller drivers. Signed-off-by:
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Douglas Anderson authored
Let's add support for being able to read the HPD pin even if it's hooked directly to the controller. This will allow us to get more accurate delays also lets us take away the waiting in the AUX transfer functions of the eDP controller drivers. Signed-off-by:
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Douglas Anderson authored
Sometimes it's useful for users of the DP AUX bus (like panels) to be able to poll HPD. Let's add a callback that allows DP AUX busses drivers to provide this. Suggested-by:
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Hsin-Yi Wang authored
Panel orientation property should be set before drm_dev_register(). Some drm driver calls drm_dev_register() in .bind(). However, most panels sets orientation property relatively late, mostly in .get_modes() callback, since this is when they are able to get the connector and binds the orientation property to it, though the value should be known when the panel is probed. In drm_bridge_connector_init(), if a bridge is a panel bridge, use it to set the connector's panel orientation property. Suggested-by:
Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by:
Stephen Boyd <swboyd@chromium.org> [dianders: fixed space vs. tab indentation] Signed-off-by:
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Hsin-Yi Wang authored
To return the orientation property to drm/kms driver. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Reviewed-by:
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Hsin-Yi Wang authored
To return the orientation property to drm/kms driver. Signed-off-by:
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Hsin-Yi Wang authored
To return the orientation property to drm/kms driver. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Reviewed-by:
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Hsin-Yi Wang authored
To return the orientation property to drm/kms driver. Signed-off-by:
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Hsin-Yi Wang authored
To return the orientation property to drm/kms driver. Signed-off-by:
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Hsin-Yi Wang authored
To return the orientation property to drm/kms driver. Signed-off-by:
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Hsin-Yi Wang authored
Panels usually call drm_connector_set_panel_orientation(), which is later than drm/kms driver calling drm_dev_register(). This leads to a WARN(). The orientation property is known earlier. For example, some panels parse the property through device tree during probe. Add an API to return the property from panel to drm/kms driver, so the drivers are able to call drm_connector_set_orientation_from_panel() before drm_dev_register(). Suggested-by:
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Thomas Zimmermann authored
Always run fbdev removal first to remove simpledrm via sysfb_disable(). This clears the internal state. The later call to drm_aperture_detach_drivers() then does nothing. Otherwise, with drm_aperture_detach_drivers() running first, the call to sysfb_disable() uses inconsistent state. Example backtrace show below: [ 11.663422] ================================================================== [ 11.663426] BUG: KASAN: use-after-free in device_del+0x79/0x5f0 [ 11.663435] Read of size 8 at addr ffff888108185050 by task systemd-udevd/311 [ 11.663440] CPU: 0 PID: 311 Comm: systemd-udevd Tainted: G E 5 .19.0-rc2-1-default+ #1689 [ 11.663445] Hardware name: HP ProLiant DL120 G7, BIOS J01 04/21/2011 [ 11.663447] Call Trace: [ 11.663449] <TASK> [ 11.663451] ? device_del+0x79/0x5f0 [ 11.663456] dump_stack_lvl+0x5b/0x73 [ 11.663462] print_address_description.constprop.0+0x1f/0x1b0 [ 11.663468] ? device_del+0x79/0x5f0 [ 11.663471] ? device_del+0x79/0x5f0 [ 11.663475] print_report.cold+0x3c/0x21c [ 11.663481] ? lock_acquired+0x87/0x1e0 [ 11.663484] ? lock_acquired+0x87/0x1e0 [ 11.663489] ? device_del+0x79/0x5f0 [ 11.663492] kasan_report+0xbf/0xf0 [ 11.663498] ? device_del+0x79/0x5f0 [ 11.663503] device_del+0x79/0x5f0 [ 11.663509] ? device_remove_attrs+0x170/0x170 [ 11.663514] ? lock_is_held_type+0xe8/0x140 [ 11.663523] platform_device_del.part.0+0x19/0xe0 [ 11.663530] platform_device_unregister+0x1c/0x30 [ 11.663535] sysfb_disable+0x2d/0x70 [ 11.663540] remove_conflicting_framebuffers+0x1c/0xf0 [ 11.663546] remove_conflicting_pci_framebuffers+0x130/0x1a0 [ 11.663554] drm_aperture_remove_conflicting_pci_framebuffers+0x86/0xb0 [ 11.663561] ? mgag200_pci_remove+0x30/0x30 [mgag200] [ 11.663578] mgag200_pci_probe+0x2d/0x140 [mgag200] Reported-by:
Zack Rusin <zackr@vmware.com> Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Javier Martinez Canillas <javierm@redhat.com> Reviewed-by:
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Ville Syrjälä authored
Dropping drm_blend.h from drm_crtc.h broke the xlnx driver. Make it build again by including drm_blend.h from the driver directly. My .config was missing some required dependencies so I never build tested it :/ Cc: Hyun Kwon <hyun.kwon@xilinx.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 90bb087f ("drm: Drop drm_blend.h from drm_crtc.h") Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220621075648.7717-1-ville.syrjala@linux.intel.comReviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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- 20 Jun, 2022 20 commits
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Alex Deucher authored
Fixes this warning: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:9143:27: warning: variable 'abo' set but not used [-Wunused-but-set-variable] Fixes: 047de3f1 ("drm/amdgpu: switch DM to atomic fence helpers v2") Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220616203538.649041-1-alexander.deucher@amd.com
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Ville Syrjälä authored
drm_crtc.h has no need for drm_connector.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_connector.h. Signed-off-by:
Jani Nikula <jani.nikula@intel.com>
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Ville Syrjälä authored
drm_crtc.h has no need for drm_blend.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_blend.h. Quite a few placs do currently depend on drm_blend.h without actually including it directly. All of those need to be fixed up. Signed-off-by:
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Ville Syrjälä authored
drm_crtc.h has no need for drm_frambuffer.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_framebuffer.h. Quite a few placs do currently depend on drm_framebuffer.h without actually including it directly. All of those need to be fixed up. v2: Fix up msm some more v2: Deal with ingenic and shmobile as well Signed-off-by:
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Ville Syrjälä authored
drm_crtc.h has no need for drm_edid.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_edid.h. Quite a few placs do currently depend on drm_edid.h without actually including it directly. All of those need to be fixed up. v2: Fix up i915 and msm some more v3: Fix alphabetical ordering (Sam) Signed-off-by:
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Alexander Stein authored
There is no need to require non-sleeping GPIO access. Silence the WARN_ON() if GPIO is using e.g. I2C expanders. Signed-off-by:
Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by:
Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220614095835.1398708-2-alexander.stein@ew.tq-group.comReviewed-by:
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Alexander Stein authored
Add more warning/debug messages during probe. E.g. a single -EPROBE_DEFER might have several causes, these messages help finding the origin. Signed-off-by:
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Jiri Vanek authored
Use the same PCLK divide option (divide DSI clock to generate pixel clock) which is set to LVDS Configuration Register (LVCFG) also for a VSync delay calculation. Without this change an auxiliary variable could underflow during the calculation for some dual-link LVDS panels and then calculated VSync delay is wrong. This leads to a shifted picture on a panel. Tested-by:
Jiri Vanek <jirivanek1@gmail.com> Signed-off-by:
Vinay Simha BN <simhavcs@gmail.com> Signed-off-by:
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Jiri Vanek authored
Function for reading from i2c device register displays error message even if reading ends correctly. Add return to avoid falling through into the fail label. Signed-off-by:
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Liu Ying authored
Add myself as the maintainer of DRM bridge drivers for i.MX SoCs. Reviewed-by:
Liu Ying <victor.liu@nxp.com> Acked-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Liu Ying authored
This patch adds bindings for i.MX8qm/qxp Control and Status Registers module. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Liu Ying authored
This patch adds a drm bridge driver for i.MX8qm LVDS display bridge(LDB) which is officially named as pixel mapper. The LDB has two channels. Each of them supports up to 30bpp parallel input color format and can map the input to VESA or JEIDA standards. The two channels can be used simultaneously, either in dual mode or split mode. In dual mode, the two channels output identical data. In split mode, channel0 outputs odd pixels and channel1 outputs even pixels. This patch supports the LDB single mode and split mode. Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # Colibri iMX8X, LT170410-2WHC, LP156WF1 Reviewed-by:
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Liu Ying authored
This patch adds a drm bridge driver for i.MX8qxp LVDS display bridge(LDB) which is officially named as pixel mapper. The LDB has two channels. Each of them supports up to 24bpp parallel input color format and can map the input to VESA or JEIDA standards. The two channels cannot be used simultaneously, that is to say, the user should pick one of them to use. Two LDB channels from two LDB instances can work together in LDB split mode to support a dual link LVDS display. The channel indexes have to be different. Channel0 outputs odd pixels and channel1 outputs even pixels. This patch supports the LDB single mode and split mode. Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # Colibri iMX8X, LT170410-2WHC, LP156WF1 Reviewed-by:
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Liu Ying authored
This patch adds bindings for i.MX8qm/qxp LVDS display bridge(LDB). Reviewed-by:
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Liu Ying authored
This patch adds a helper to support LDB drm bridge drivers for i.MX SoCs. Helper functions supported by this helper should implement common logics for all LDB modules embedded in i.MX SoCs. Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # Colibri iMX8X, LT170410-2WHC, LP156WF1 Reviewed-by:
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Liu Ying authored
This patch adds a drm bridge driver for i.MX8qxp pixel link to display pixel interface(PXL2DPI). The PXL2DPI interfaces the pixel link 36-bit data output and the DSI controller’s MIPI-DPI 24-bit data input, and inputs of LVDS Display Bridge(LDB) module used in LVDS mode, to remap the pixel color codings between those modules. The PXL2DPI is purely combinatorial. Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # Colibri iMX8X, LT170410-2WHC, LP156WF1 Reviewed-by:
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Liu Ying authored
This patch adds bindings for i.MX8qxp pixel link to DPI(PXL2DPI). Reviewed-by:
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Liu Ying authored
This patch adds a drm bridge driver for i.MX8qm/qxp display pixel link. The pixel link forms a standard asynchronous linkage between pixel sources(display controller or camera module) and pixel consumers(imaging or displays). It consists of two distinct functions, a pixel transfer function and a control interface. Reviewed-by:
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Liu Ying authored
This patch adds bindings for i.MX8qm/qxp display pixel link. Signed-off-by:
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Liu Ying authored
This patch adds a drm bridge driver for i.MX8qm/qxp pixel combiner. The pixel combiner takes two output streams from a single display controller and manipulates the two streams to support a number of modes(bypass, pixel combine, YUV444 to YUV422, split_RGB) configured as either one screen, two screens, or virtual screens. The pixel combiner is also responsible for generating some of the control signals for the pixel link output channel. For now, the driver only supports the bypass mode. Reviewed-by:
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