- 24 Apr, 2022 3 commits
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Marek Vasut authored
All users of this function require width-mm/height-mm DT property to be present per their DT bindings, make width-mm/height-mm check mandatory. It is generally a good idea to specify panel dimensions, so userspace can configure e.g. scaling accordingly. Signed-off-by:
Marek Vasut <marex@denx.de> Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dmitry Osipenko <digetx@gmail.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Robert Foss <robert.foss@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> To: dri-devel@lists.freedesktop.org Reviewed-by:
Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220411004728.68203-1-marex@denx.de
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Marek Vasut authored
Add DataImage FG040346DSSWBG04 4.3" 480x272 TFT LCD 24bit DPI panel support. Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220422102242.18959-2-marex@denx.de
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Marek Vasut authored
Add DataImage FG040346DSSWBG04 4.3" 480x272 TFT LCD 24bit DPI panel compatible string. Acked-by:
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- 23 Apr, 2022 1 commit
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Zack Rusin authored
The buffer objects created by cotables were missing fence reservations. They are created from vmw_validation_res_validate which makes them miss the ttm_eu_reserve_buffers which is called from vmw_validation_bo_reserve. Cotables are the only resources which create a buffer object in the create callback so make sure the code also reserves the slots. Signed-off-by:
Zack Rusin <zackr@vmware.com> Co-developed-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
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- 22 Apr, 2022 5 commits
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Tom Rix authored
Smatch reports this issue gv100.c:46:1: warning: symbol 'gv100_gsp' was not declared. Should it be static? gv100_gsp is only used in gv100.c so change its storage-class specifier to static. Signed-off-by:
Tom Rix <trix@redhat.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Signed-off-by:
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Robert Foss authored
it6505 depends on DRM_DP_AUX_BUS, the kconfig for it6505 should reflect this dependency using 'select'. Fixes: b5c84a9e ("drm/bridge: add it6505 driver") Reported-by:
kernel test robot <lkp@intel.com> Suggested-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
Robert Foss <robert.foss@linaro.org> Reviewed-by:
Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220421131415.1289469-1-robert.foss@linaro.org
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Javier Martinez Canillas authored
Learning about the DRM subsystem could be quite overwhelming for newcomers but there are lots of useful talks, slides and articles available that can help to understand the needed concepts and ease the learning curve. There are also simple DRM drivers that can be used as example about how a DRM driver should look like. Add sections to the introduction page, that contains references to these. Suggested-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Javier Martinez Canillas <javierm@redhat.com> Acked-by:
Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by:
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José Expósito authored
Once EDID is parsed, the monitor HDMI support information is available through drm_display_info.is_hdmi. This driver calls drm_detect_hdmi_monitor() to receive the same information and stores its own cached value, which is less efficient. Avoid calling drm_detect_hdmi_monitor() and use drm_display_info.is_hdmi instead and also remove sun4i_hdmi.hdmi_monitor as it is no longer necessary. Signed-off-by:
José Expósito <jose.exposito89@gmail.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220421170725.903361-6-jose.exposito89@gmail.com
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kernel test robot authored
drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c:80:5-8: Unneeded variable: "ret". Return "0" on line 94 drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c:105:5-8: Unneeded variable: "ret". Return "0" on line 112 Remove unneeded variable used to store return value. Generated by: scripts/coccinelle/misc/returnvar.cocci CC: Sandor Yu <Sandor.yu@nxp.com> Reported-by:
Sandor Yu <Sandor.yu@nxp.com> Reviewed-by:
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- 21 Apr, 2022 11 commits
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Yang Wang authored
simplify programming with existing functions. v2 (chk): minimal coding style cleanup Signed-off-by:
Yang Wang <KevinYang.Wang@amd.com> Reviewed-by:
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Miaoqian Lin authored
In the error handling path, the clk_prepare_enable() function call should be balanced by a corresponding 'clk_disable_unprepare()' call, as already done in the remove function. Fixes: 3424e3a4 ("drm: bridge: analogix/dp: split exynos dp driver to bridge directory") Signed-off-by:
Miaoqian Lin <linmq006@gmail.com> Reviewed-by:
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Christian König authored
We just need to reserve one BO here, no need for using ttm_eu to reserve multiple BOs. Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Acked-by:
Harry Wentland <harry.wentland@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220419141915.122157-2-christian.koenig@amd.com
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Christian König authored
We just need to reserve one BO here, no need for using ttm_eu to reserve multiple BOs. Signed-off-by:
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José Expósito authored
The vc4_hdmi_encoder struct was used exclusively to cache the value returned by drm_detect_hdmi_monitor() in order to avoid calling it multiple times. Now that drm_detect_hdmi_monitor() has been replaced with drm_display_info.is_hdmi, there is no need to have an extra struct. Remove vc4_hdmi_encoder. Signed-off-by:
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José Expósito authored
Once EDID is parsed, the monitor HDMI support information is cached in drm_display_info.is_hdmi by drm_parse_hdmi_vsdb_video(). This driver calls drm_detect_hdmi_monitor() to receive the same information and stores its own cached value in vc4_hdmi_encoder.hdmi_monitor, which is less efficient. Avoid calling drm_detect_hdmi_monitor() and use drm_display_info.is_hdmi instead. This also allows to remove vc4_hdmi_encoder.hdmi_monitor. drm_detect_hdmi_monitor() is called in vc4_hdmi_connector_detect() and vc4_hdmi_connector_get_modes(). In both cases it is safe to rely on drm_display_info.is_hdmi as shown by ftrace: $ sudo trace-cmd record -p function_graph -l "vc4_hdmi_*" -l "drm_*" vc4_hdmi_connector_detect: vc4_hdmi_connector_detect() { drm_get_edid() { drm_connector_update_edid_property() { drm_add_display_info() { drm_reset_display_info(); drm_for_each_detailed_block.part.0(); drm_parse_cea_ext() { drm_find_cea_extension(); drm_parse_hdmi_vsdb_video(); /* drm_display_info.is_hdmi is cached here */ } } } } /* drm_display_info.is_hdmi is used here */ } vc4_hdmi_connector_get_modes: vc4_hdmi_connector_get_modes() { drm_get_edid() { drm_connector_update_edid_property() { drm_add_display_info() { drm_reset_display_info(); drm_for_each_detailed_block.part.0(); drm_parse_cea_ext() { drm_find_cea_extension(); drm_parse_hdmi_vsdb_video(); /* drm_display_info.is_hdmi is cached here */ } } } } /* drm_display_info.is_hdmi is used here */ drm_connector_update_edid_property(); } Signed-off-by: -
Zack Rusin authored
Switch to using the TTM resource manager debugfs helpers. The functionality is largely the same. The TTM resource managers need to stay valid for as long as the drm debugfs_root is valid. Signed-off-by:
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Zack Rusin authored
Switch to using the TTM resource manager debugfs helpers. The functionality is largely the same. The TTM resource managers need to stay valid for as long as the drm debugfs_root is valid. Signed-off-by:
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Zack Rusin authored
Switch to using the TTM resource manager debugfs helpers. It's exactly the same functionality but the debugfs code is shared with other drivers. The TTM resource managers need to stay valid for as long as the drm debugfs_root is valid. Signed-off-by:
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Zack Rusin authored
Use the newly added TTM's ability to automatically create debugfs entries for specified placements. This creates debugfs files that can be read to get information about various TTM resource managers which are used by vmwgfx. Signed-off-by:
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Zack Rusin authored
Drivers duplicate the code required to add debugfs entries for various ttm resource managers. To fix it add common TTM resource manager debugfs code that each driver can reuse. Specific resource managers can overwrite ttm_resource_manager_func::debug to get more information from those debugfs entries. Signed-off-by:
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- 20 Apr, 2022 8 commits
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Javier Martinez Canillas authored
The ssd130x driver only provides the core support for these devices but it does not have any bus transport logic. Add a driver to interface over SPI. There is a difference in the communication protocol when using 4-wire SPI instead of I2C. For the latter, a control byte that contains a D/C# field has to be sent. This field tells the controller whether the data has to be written to the command register or to the graphics display data memory. But for 4-wire SPI that control byte is not used, instead a real D/C# line must be pulled HIGH for commands data and LOW for graphics display data. For this reason the standard SPI regmap can't be used and a custom .write bus handler is needed. Signed-off-by:
Mark Brown <broonie@kernel.org> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patchwork.freedesktop.org/patch/msgid/20220419214824.335075-6-javierm@redhat.com
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Javier Martinez Canillas authored
These are declared in the ssd130x-i2c transport driver but the information is not I2C specific, and could be used by other SSD130x transport drivers. Move them to the ssd130x core driver and just set the OF device entries to an ID that could be used to lookup the correct device info from an array. While being there, also move the SSD130X_DATA and SSD130X_COMMAND control bytes. Since even though they are used by the I2C interface, they could also be useful for other transport protocols such as SPI. Suggested-by:
Chen-Yu Tsai <wens@kernel.org> Signed-off-by:
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Javier Martinez Canillas authored
The current compatible strings for SSD130x I2C controllers contain an "fb" and "-i2c" suffixes. These have been deprecated and more correct ones were added, that don't encode a subsystem or bus used to interface the devices. Signed-off-by:
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Javier Martinez Canillas authored
The Solomon SSD130x OLED displays can either have an I2C or SPI interface, add to the schema the properties and examples for OLED devices under SPI. Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220419214824.335075-3-javierm@redhat.com
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Javier Martinez Canillas authored
The current compatible strings for SSD130x I2C controllers contain both an "fb" and "-i2c" suffixes. It seems to indicate that are for a fbdev driver and also that are for devices that can be accessed over an I2C bus. But a DT is supposed to describe the hardware and not Linux implementation details. So let's deprecate those compatible strings and add new ones that only contain the vendor and device name, without any of these suffixes. These will just describe the device and can be matched by both I2C and SPI DRM drivers. The required properties should still be enforced for old ones. While being there, just drop the "sinowealth,sh1106-i2c" compatible string since that was never present in a released Linux version. Signed-off-by:
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Thomas Zimmermann authored
A workaround makes fbdev hot-unplugging work for framebuffers without device. The only user for this feature was offb. As each OF framebuffer now has an associated platform device, the workaround hould no longer be triggered. Update it with a warning and rewrite the comment. Fbdev drivers that trigger the hot-unplug workaround really need to be fixed. Signed-off-by:
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Thomas Zimmermann authored
Create a platform device for each OF-declared framebuffer and have offb bind to these devices. Allows for real hot-unplugging and other drivers besides offb. Originally, offb created framebuffer devices while initializing its module by parsing the OF device tree. No actual Linux device was set up. This tied OF framebuffers to offb and makes writing other drivers for the OF framebuffers complicated. The absence of a Linux device further prevented real hot-unplugging. Adding a distinct platform device for each OF framebuffer solves both problems. Specifically, a DRM driver can now provide graphics output for modern userspace. Some of the offb init code is now located in the OF initialization. There's now also an implementation of of_platform_default_populate_init(), which was missing before. The OF side creates different devices for either OF display nodes or BootX displays as they require different handling by the driver. The offb drivers picks up each type of device and runs the appropriate fbdev initialization. Tested with OF display nodes on qemu's ppc64le target. v3: * declare variable 'node' with function scope (Rob) v2: * run PPC code as part of existing initialization (Rob) * add a few more error warnings (Javier) Signed-off-by:
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Xiaomeng Tong authored
Instead of exiting the loop as expected when an entry is found, the list_for_each_entry() continues until the traversal is complete. To avoid potential executing 'ret = gma_backlight_init(dev);' repeatly, goto outside the loop when found entry by replacing switch/case with if statement. Signed-off-by:
Xiaomeng Tong <xiam0nd.tong@gmail.com> Signed-off-by:
Patrik Jakobsson <patrik.r.jakobsson@gmail.com> [Fixed indentation] Link: https://patchwork.freedesktop.org/patch/msgid/20220413051105.5612-1-xiam0nd.tong@gmail.com
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- 19 Apr, 2022 12 commits
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Marek Vasut authored
The driver currently hard-codes DSI lane count to two, however the chip is capable of operating in 1..4 DSI lanes mode. Parse 'data-lanes' DT property and program the result into DSI_CTRL register. Signed-off-by:
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Marek Vasut authored
It is necessary to specify the number of connected/used DSI data lanes when using the DSI input port of this bridge. Document the 'data-lanes' property of the DSI input port. Signed-off-by:
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Nícolas F. R. A. Prado authored
As defined in the anx7625 dt-binding, the analogix,lane0-swing and analogix,lane1-swing properties are uint8 arrays. Yet, the driver was reading the array as if it were of uint32 and masking to 8-bit before writing to the registers. This means that a devicetree written in accordance to the dt-binding would have its values incorrectly parsed. Fix the issue by reading the array as uint8 and storing them as uint8 internally, so that we can also drop the masking when writing the registers. Fixes: fd0310b6 ("drm/bridge: anx7625: add MIPI DPI input feature") Signed-off-by:
Nícolas F. R. A. Prado <nfraprado@collabora.com> Reviewed-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by:
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Sandor Yu authored
General Parallel Audio (GPA) interface is one of the supported audio interface for synopsys HDMI module, which has verified for i.MX8MPlus platform. This is initial version for GPA. Signed-off-by:
Shengjiu Wang <shengjiu.wang@nxp.com> Signed-off-by:
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Sandor Yu authored
PHY reset register(MC_PHYRSTZ) active high reset control for PHY GEN2, and active low reset control for PHY GEN1. Rename function dw_hdmi_phy_reset to dw_hdmi_phy_gen2_reset. Add dw_hdmi_phy_gen1_reset function for PHY GEN1. Signed-off-by:
Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by:
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Sandor Yu authored
HDMI1.4b specification section 6.5.3: Source shall only send GCPs with non-zero CD to sinks that indicate support for Deep Color. DW HDMI GCP default enabled, but only transmit CD and do not handle AVMUTE, PP norDefault_Phase (yet). Disable Auto GCP when 24-bit color for sinks that not support Deep Color. Signed-off-by:
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Sandor Yu authored
i.MX8MPlus (v2.13a) has verified need the workaround to clear the overflow with one iteration. Only i.MX6Q(v1.30a) need the workaround with 4 iterations, the others versions later than v1.3a have been identified as needing the workaround with a single iteration. Default enable the workaround with one iteration for all versions later than v1.30a. Signed-off-by:
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Marek Szyprowski authored
If panel_bridge_attach() happens after DRM device registration, the created connector will not be registered by the DRM core anymore. Fix this by registering it explicitly in such case. This fixes the following issue observed on Samsung Exynos4210-based Trats board with a DSI panel (the panel driver is registered after the Exynos DRM component device is bound): $ ./modetest -c -Mexynos could not get connector 56: No such file or directory Segmentation fault While touching this, move the connector reset() call also under the DRM device registered check, because otherwise it is not really needed. Fixes: 934aef88 ("drm: bridge: panel: Reset the connector state pointer") Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by:
Jagan Teki <jagan@amarulasolutions.com> Signed-off-by:
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Biju Das authored
Connector detection using poll method won't work in case of bridge attached to the encoder with the flag DRM_BRIDGE_ATTACH_NO_CONNECTOR, as the code defaults to HPD. Enable DRM_BRIDGE_OP_HPD based on HPD interrupt availability, so that it will fall back to polling, if HPD is not available. Signed-off-by:
Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by:
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Marek Vasut authored
Add driver for Lontium LT9211 Single/Dual-Link DSI/LVDS or Single DPI to Single-link/Dual-Link DSI/LVDS or Single DPI bridge. This chip is highly capable at converting formats, but sadly it is also highly undocumented. This driver is written without any documentation from Lontium and based only on shreds of information available in various obscure example codes, hence long runs of unknown register patches and lengthy delays in various places. Whichever register meaning could be divined from its behavior has at least a comment around it. Currently the only mode tested is Single-link DSI to Single-link LVDS. Dual-link LVDS might work as well, the register programming is in place, but is untested. Reviewed-by:
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Marek Vasut authored
Add bindings for Lontium LT9211 Single/Dual-Link DSI/LVDS or Single DPI to Single-link/Dual-Link DSI/LVDS or Single DPI bridge. This chip is highly capable at converting formats, but sadly it is also highly undocumented. Reviewed-by:
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Hsin-Yi Wang authored
Speaker may share I2S with DP and .get_eld callback will be called when speaker is playing. When HDMI wans't connected, the connector will be null. Instead of return an error, fill in empty ELD. Signed-off-by:
Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by:
Xin Ji <xji@analogixsemi.com> Signed-off-by:
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