- 09 Jul, 2019 7 commits
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Thomas Zimmermann authored
The bochs driver (and virtual hardware) requires buffer objects to reside in video ram to display them to the screen. So it can not display the framebuffer console because the respective buffer object is permanently pinned in system memory. Using a shadow buffer for the console solves this problem. The console emulation will pin the buffer object only during updates from the shadow buffer. Otherwise, the bochs driver can freely relocated the buffer between system memory and video ram. v2: * select shadow FB via struct drm_mode_config.prefer_shadow_fbdev Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/315833/
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Thomas Zimmermann authored
This patch replaces ast's framebuffer console with DRM's generic implememtation. All respective code is being removed from the driver. The console is set up with a shadow buffer. The actual buffer object is not permanently pinned in video ram, but just another buffer object that the driver moves in and out of vram as necessary. The driver's function ast_crtc_do_set_base() used to contain special handling for the framebuffer console. With the new generic framebuffer, the driver does not need this code an longer. v2: * use drm_fb_helper_set_suspend_unlocked() in ast_drm_{thaw,freeze}() * dirty function no longer required Signed-off-by: -
Thomas Zimmermann authored
Generic framebuffer emulation uses a shadow buffer for framebuffers with dirty() function. If drivers want to use the shadow FB without such a function, they can now set prefer_shadow or prefer_shadow_fbdev in their mode_config structures. The former flag is exported to userspace, the latter flag is fbdev-only. v3: * only schedule dirty worker if fbdev uses shadow fb * test shadow fb settings with boolean operators * use bool for struct drm_mode_config.prefer_shadow_fbdev * fix documentation comments Signed-off-by:
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Thomas Zimmermann authored
This patch changes DRM clients to not map the buffer by default. The buffer, like any buffer object, should be mapped and unmapped when needed. An unmapped buffer object can be evicted to system memory and does not consume video ram until displayed. This allows to use generic fbdev emulation with drivers for low-memory devices, such as ast and mgag200. This change affects the generic framebuffer console. HW-based consoles map their console buffer once and keep it mapped. Userspace can mmap this buffer into its address space. The shadow-buffered framebuffer console only needs the buffer object to be mapped during updates. While not being updated from the shadow buffer, the buffer object can remain unmapped. Userspace will always mmap the shadow buffer. v2: * change DRM client to not map buffer by default * manually map client buffer for fbdev with HW framebuffer Signed-off-by:
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Thomas Zimmermann authored
DRM clients, such as the fbdev emulation, have their buffer objects mapped by default. Mapping a buffer implicitly prevents its relocation. Hence, the buffer may permanently consume video memory while it's allocated. This is a problem for drivers of low-memory devices, such as ast, mgag200 or older framebuffer hardware, which will then not have enough memory to display other content (e.g., X11). This patch introduces drm_client_buffer_vmap() and _vunmap(). Internal DRM clients can use these functions to unmap and remap buffer objects as needed. There's no reference counting for vmap operations. Callers are expected to either keep buffers mapped (as it is now), or call vmap and vunmap in pairs around code that accesses the mapped memory. v2: * remove several duplicated NULL-pointer checks v3: * style and typo fixes Signed-off-by:
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Ville Syrjälä authored
The current possible_clones setup doesn't look sensible. I'm assuming the 0 and 1 are supposed to refer to the indexes of the hdmi and hda encoders? So it kinda looks like we want hda+hdmi cloning, but then dvo also claims to be cloneable with hdmi, but hdmi won't recipricate. Benjamin tells me all encoders should be cloneable with each other, so let's fix up the masks to indicate that. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Acked-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Ville Syrjälä authored
There's no point in the cast for accessing the base class. Just take the address of the struct instead. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Acked-by:
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- 08 Jul, 2019 13 commits
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Rob Herring authored
Convert the sgd,gktw70sdae4se LVDS panel binding to DT schema. Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190705164221.4462-14-robh@kernel.org
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Rob Herring authored
Convert the mitsubishi,aa121td01 LVDS panel binding to DT schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Rob Herring authored
Convert the mitsubishi,aa104xd12 LVDS panel binding to DT schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Rob Herring authored
Convert the innolux,ee101ia-01 LVDS panel binding to DT schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
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Rob Herring authored
Convert the panel-lvds binding to use DT schema. The panel-lvds schema inherits from the panel-common.yaml schema and specific LVDS panel bindings should inherit from this schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the tfc,s9700rtwv43tr-01b panel binding to DT schema. Cc: Heiko Stuebner <heiko.stuebner@bq.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the raspberrypi,7inch-touchscreen panel binding to DT schema. Cc: Eric Anholt <eric@anholt.net> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the pda,91-00156-a0 panel binding to DT schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the dlc,dlc0700yzg-1 panel binding to DT schema. Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the bananapi,s070wv20-ct16 panel binding to DT schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the armadeus,st0700-adapt panel binding to DT schema. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the ampire,am-480272h3tmqw-t01h panel binding to DT schema. Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by:
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Rob Herring authored
Convert the common panel bindings to DT schema consolidating scattered definitions to a single schema file. The 'simple-panel' binding just a collection of properties and not a complete binding itself. All of the 'simple-panel' properties are covered by the panel-common.txt binding with the exception of the 'no-hpd' property, so add that to the schema. As there are lots of references to simple-panel.txt, just keep the file with a reference to common.yaml for now until all the bindings are converted. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: dri-devel@lists.freedesktop.org Acked-by:
Sam Ravnborg <sam@ravnborg.org> Reviewed-by:
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- 04 Jul, 2019 4 commits
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Rob Clark authored
Noticed while comparing register dump of how bootloader configures DSI vs how kernel configures. It seems the bridge still works either way, but fixing this clears the 'CHA_DATATYPE_ERR' error status bit. Signed-off-by:
Rob Clark <robdclark@chromium.org> Reviewed-by:
Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Reviewed-by:
Andrzej Hajda <a.hajda@samsung.com> Signed-off-by:
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Rob Clark authored
Add a debugfs file to show status registers. Signed-off-by:
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Rob Clark authored
The bridge has pretty good docs, lets add a link to make them easier to find. Signed-off-by:
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YueHaibing authored
Fix sparse warning: drivers/gpu/drm/bridge/sii902x.c:665:5: warning: symbol 'sii902x_audio_digital_mute' was not declared. Should it be static? Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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- 03 Jul, 2019 7 commits
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Rob Herring authored
This reverts commit 220df83a. Turns out drm_gem_dumb_map_offset really only worked for the dumb buffer case, so revert the name change. Signed-off-by:
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Rob Herring authored
This reverts commit 583bbf46. Turns out we need mmap to work on imported BOs even if the current code is buggy. Signed-off-by:
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Thomas Zimmermann authored
PRIME functionality is now provided by GEM object functions. The driver callback functions are obsolete. So this patch renames them and turns them into static internal functions of the VRAM helper library. The implementation of gem_prime_mmap is now unused and the patch removes it. v3: * kept each renamed function at its original location within file * kept documentation Signed-off-by:
Emil Velikov <emil.velikov@collabora.com> Reviewed-by:
Gerd Hoffmann <kraxel@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190702115012.4418-6-tzimmermann@suse.de
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Thomas Zimmermann authored
The vbox driver uses VRAM helpers for memory management. These helpers provide a basic implementation of PRIME functions, so the vbox driver's empty implmentation can be removed. As a side effect of this change, vbox can now use generic framebuffer emulation. Signed-off-by:
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Thomas Zimmermann authored
The GEM object's free function is now called through struct drm_gem_object_funcs.free. The function struct drm_driver.gem_prime_mmap is now required for mmap'ing GEM objects to userspace. v2: * set drm_driver.gem_prime_mmap to drm_gem_prime_mmap() Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
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Thomas Zimmermann authored
VRAM PRIME helpers are now called through GEM object functions. The driver callback functions are obsolete. Signed-off-by:
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Thomas Zimmermann authored
PRIME functionality is now provided via the callback functions in struct drm_gem_object_funcs. The driver-structure functions are obsolete. As a side effect of this patch, VRAM-based drivers get basic PRIME support automatically without having to set any flags or additional fields. v2: - use existing PRIME functions for object's table v3: - move object table to EOF so it can refer to internal interfaces Signed-off-by:
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- 01 Jul, 2019 7 commits
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Paul Cercueil authored
Add support for the LCD panels with a serial 8-bit bus, where the color components of each 24-bit pixel are sent sequentially. Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Link: https://patchwork.freedesktop.org/patch/msgid/20190627182114.27299-3-paul@crapouillou.net # *** extracted tags *** Reviewed-by:
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Paul Cercueil authored
Add support for the LCD panels that must be driven with the Sharp-specific signals SPL, CLS, REV, PS. An example of such panel is the LS020B1DD01D supported by the panel-simple DRM panel driver. Signed-off-by:
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Paul Cercueil authored
Simplify a bit the probe function by using the newly introduced devm_platform_ioremap_resource(), instead of having to call platform_get_resource() followed by devm_ioremap_resource(). Signed-off-by:
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Neil Armstrong authored
When using an I2S source using a different clock source (usually the I2S audio HW uses dedicated PLLs, different from the HDMI PHY PLL), fixed CTS values will cause some frequent audio drop-out and glitches as reported on Amlogic, Allwinner and Rockchip SoCs setups. Setting the CTS in automatic mode will let the HDMI controller generate automatically the CTS value to match the input audio clock. The DesignWare DW-HDMI User Guide explains: For Automatic CTS generation Write "0" on the bit field "CTS_manual", Register 0x3205: AUD_CTS3 The DesignWare DW-HDMI Databook explains : If "CTS_manual" bit equals 0b this registers contains "audCTS[19:0]" generated by the Cycle time counter according to specified timing. Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Tested-by:
Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
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Lucas Stach authored
To get the chip into the expected state, even when the hardware reset pin isn't connected, do a software reset in this case. It isn't as thorough as the hardware reset, as the I2C communication block can not be reset for obvious reasons, but it's getting the chip into a defined state. Signed-off-by:
Lucas Stach <l.stach@pengutronix.de> Signed-off-by:
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Matt Redfearn authored
In contrast to all of the DSI panel drivers in drivers/gpu/drm/panel which attach to the DSI host via mipi_dsi_attach() at probe time, the ADV7533 bridge device does not. Instead it defers this to the point that the upstream device connects to its bridge via drm_bridge_attach(). The generic Synopsys MIPI DSI host driver does not register it's own drm_bridge until the MIPI DSI has attached. But it does not call drm_bridge_attach() on the downstream device until the upstream device has attached. This leads to a chicken and the egg failure and the DRM pipeline does not complete. Since all other mipi_dsi_device drivers call mipi_dsi_attach() in probe(), make the adv7533 mipi_dsi_device do the same. This ensures that the Synopsys MIPI DSI host registers it's bridge such that it is available for the upstream device to connect to. Signed-off-by:
Matt Redfearn <matt.redfearn@thinci.com> Signed-off-by:
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Sam Ravnborg authored
Drop use of the deprecated header file drmP.h from the sole user in the stm driver. Replace with necessary include files. Signed-off-by:
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- 30 Jun, 2019 2 commits
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Sam Ravnborg authored
I have agreed with Boris Brezillon that we will share the maintainer role for the drm/atmel_hlcdc driver. Nicolas Ferre from Microchip has donated a few boards that allows me to test things - thanks! Signed-off-by:
Boris Brezillon <bbrezillon@kernel.org> Acked-by:
Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Peter Rosin <peda@axentia.se> Link: https://patchwork.freedesktop.org/patch/msgid/20190627211643.GA19853@ravnborg.org
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Sam Ravnborg authored
Drop use of the deprecated drmP.h header file. Replace with necessary include files to fix build. Signed-off-by:
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