- 22 Aug, 2024 6 commits
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Thomas Zimmermann authored
Permanently set the connector status to 'connected'. Return BMC modes for connector if no display is attached to the physical DP connector. Otherwise use EDID modes as before. If the status of the physical connector changes, the driver still generates a hotplug event. DRM clients will then reconfigure their output to a mode appropriate for either physical display or BMC. v3: - use struct ast_connector.physical_status to handle BMC Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240815151953.184679-7-tzimmermann@suse.de
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Thomas Zimmermann authored
Remove the CRTC handling in the ASTDP detect_ctx helper and enable power while the detecting the display. Unconditionally wait a few milliseconds after switching power. Simplifies the code and makes it more robust. Signed-off-by:
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Thomas Zimmermann authored
Convert ASTDP support to struct drm_edid and its helpers. Simplifies and modernizes the EDID handling. The driver reads 4 bytes at once, but the overall read length is now variable. Therefore update the EDID read loop to never return more than the requested bytes. The device does not seem to support EDID extensions, as the driver actively clears any such information from the main EDID header. As the new interface allows for reading extension blocks for EDID, make sure that the block is always 0 (i.e., the main header). A later update might fix that. v2: - fix reading if len is not a multiple of 4 Signed-off-by:
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Thomas Zimmermann authored
The modeset mutex protects EDID retrival from concurrent modeset operations. Acquire the lock in ast_astdp_read_edid(). Prepares the code for conversion to struct drm_edid. Signed-off-by:
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Thomas Zimmermann authored
Add struct ast_connector to track a connector's physical status. With the upcoming BMC support, the physical status can be different from the reported status. Signed-off-by:
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Thomas Zimmermann authored
Move the modesetting code for the various transmitter chips into their own source files before adding BMC support. No functional changes. Signed-off-by:
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- 20 Aug, 2024 5 commits
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Tejas Vipin authored
Changes the jdi-fhd-r63452 panel to use multi style functions for improved error handling. Reviewed-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
Tejas Vipin <tejasvipin76@gmail.com> Signed-off-by:
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Tejas Vipin authored
mipi_dsi_dcs_set_tear_scanline_multi can heavily benefit from being converted to a multi style function as it is often called in the context of similar functions. Reviewed-by:
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Abhishek Tamboli authored
Add detail comments for registers definitions in struct ili9341_config(). Replace TODO with comment for each registers. Signed-off-by:
Abhishek Tamboli <abhishektamboli9@gmail.com> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240819175122.33176-1-abhishektamboli9@gmail.comSigned-off-by:
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Tejas Vipin authored
Converts uppercase hex to lowercase hex for cleanup. Signed-off-by:
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Tejas Vipin authored
Changes the mantix-mlaf057we51 panel to use multi style functions for improved error handling. Reviewed-by:
Guido Günther <agx@sigxcpu.org> Reviewed-by:
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- 19 Aug, 2024 15 commits
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Zhaoxiong Lv authored
Modify the Melfas panel init code to satisfy the gamma value of 2.2 Acked-by:
Jessica Zhang <quic_jesszhan@quicinc.com> Signed-off-by:
Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com> Reviewed-by:
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Zhaoxiong Lv authored
Move the "exit sleep mode" and "set display on" command from enable() to init() function. As mentioned in the patch: https://lore.kernel.org/all/20240624141926.5250-2-lvzhaoxiong@huaqin.corp-partner.google.com/ The Mediatek Soc DSI host has different modes in prepare() and enable() functions, prepare() is in LP mode and enable() is in HS mode. Since the "exit sleep mode" and "set display on" command must also be sent in LP mode, so we also move "exit sleep mode" and "set display on" command to the init() function. We have no other actions in the enable() function after moves "exit sleep mode" and "set display on", and we checked the call of the enable() function during the "startup" process. It seems that only one judgment was made in drm_panel_enabel(). If the panel does not define enable(), the judgment will skip the enable() and continue execution. This does not seem to have any other effect, and we found that some drivers also seem to have no enable() function added, for example: panel-asus-z00t-tm5p5-n35596 / panel-boe-himax8279d... In addition, we briefly tested the kingdisplay_kd101ne3 panel and melfas_lmfbx101117480 panel, and it seems that there is no garbage on the panel, so we delete enable() function. After moving the "exit sleep mode" and "set display on" command to the init() function, we no longer need additional delay judgment, so we delete variables "exit_sleep_to_display_on_delay_ms" and "display_on_delay_ms". Reviewed-by:
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Liu Ying authored
ON Tat Industrial Company KD50G21-40NT-A1 is a 5" WVGA LCD panel with DPI interface. The LCD module specification can be found at: https://cdn-shop.adafruit.com/datasheets/KD50G21-40NT-A1.pdfSigned-off-by:
Liu Ying <victor.liu@nxp.com> Reviewed-by:
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Liu Ying authored
Document On Tat Industrial Company KD50G21-40NT-A1 5" WVGA TFT LCD panel. The LCD module specification can be found at: https://cdn-shop.adafruit.com/datasheets/KD50G21-40NT-A1.pdfSigned-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240816085004.491494-2-victor.liu@nxp.comSigned-off-by:
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Hironori KIKUCHI authored
The Anbernic RG28XX is a handheld gaming device with a 2.8 inch 480x640 display. Add support for the display panel. This panel is driven by a variant of ST7701 driver IC internally, confirmed by dumping and analyzing its BSP initialization sequence by using a logic analyzer. It is very similar to the existing densitron,dmt028vghmcmi-1a panel, but differs in some unknown register values. Besides, it is connected via SPI, so add a new entry for the panel. Signed-off-by:
Hironori KIKUCHI <kikuchan98@gmail.com> Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240804061503.881283-6-kikuchan98@gmail.comSigned-off-by:
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Hironori KIKUCHI authored
The ST7701 supports not only MIPI DSI, but also SPI as an interface for configuration. To support a panel connected via SPI with an RGB parallel interface, add support for SPI using MIPI DBI helpers. Signed-off-by:
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Hironori KIKUCHI authored
The RG28XX panel is a display panel of the Anbernic RG28XX, a handheld gaming device from Anbernic. It is 2.8 inches in size (diagonally) with a resolution of 480x640. This panel is driven by a variant of the ST7701 driver IC internally, confirmed by dumping and analyzing its BSP initialization sequence by using a logic analyzer. It is very similar to the existing densitron,dmt028vghmcmi-1a panel, but differs in some unknown register values, so add a new entry for the panel to distinguish them. Additionally, the panel only has an SPI instead of MIPI DSI. So add and modify for SPI as well. Although a panel connected via SPI with a D/CX pin theoretically exists, no such panels have been found for this driver yet. Therefore, disable the use of the dc-gpios property for all currently known devices. Signed-off-by:
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Hironori KIKUCHI authored
Split into a DSI-specific part and a DRM-specific part. Additionally, use devm_add_action_or_reset() to simplify the flow, and disable and unprepare the panel on cleanup. Signed-off-by:
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Hironori KIKUCHI authored
Rename DSI_CMD* macros to ST7701_CMD*, and ST7701_DSI macro to ST7701_WRITE, because they do not belong to DSI. Signed-off-by:
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Steffen Trumtrar authored
The G070ACE-LH3 is a 7" TFT Color LCD module with WLED backlight. https://www.data-modul.com/sites/default/files/products/G070ACE-LH3-specification-12058417.pdfSigned-off-by:
Steffen Trumtrar <s.trumtrar@pengutronix.de> Reviewed-by:
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Steffen Trumtrar authored
Add Innolux G070ACE-LH3 7" WVGA (800x480) TFT LCD panel compatible string. Signed-off-by:
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Esben Haabendal authored
Using the correct bit helps. The documentation specifies bit 0 in both registers to be controlling polarity of dpi_vsync_input and dpi_hsync_input polarity. Bit 1 is reserved, and should therefore not be set. Tested with panel that requires active high vsync and hsync. Signed-off-by:
Esben Haabendal <esben@geanix.com> Reviewed-by:
Robert Foss <rfoss@kernel.org> Signed-off-by:
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Rob Herring (Arm) authored
There's no need to get the length of an DT array property before parsing the array. of_property_read_variable_u8_array() takes a minimum and maximum length and returns the actual length (or error code). This is part of a larger effort to remove callers of of_get_property() and similar functions. of_get_property() leaks the DT property data pointer which is a problem for dynamically allocated nodes which may be freed. Signed-off-by:
Rob Herring (Arm) <robh@kernel.org> Signed-off-by:
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Cristian Ciocaltea authored
Make use of devm_clk_get_enabled() to replace devm_clk_get() and clk_prepare_enable() for isfr and iahb clocks, and drop the now unnecessary calls to clk_disable_unprepare(). Similarly, use devm_clk_get_optional_enabled() helper for cec clock, which additionally allows to remove the -ENOENT test. Moreover, the clock related members of struct dw_hdmi are not required anymore, hence drop them. Signed-off-by:
Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Reviewed-by:
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Liu Ying authored
If the bridge is attached with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag set, this driver won't initialize a connector and hence display mode won't be validated in drm_connector_helper_funcs::mode_valid(). So, move the mode validation from drm_connector_helper_funcs::mode_valid() to drm_bridge_funcs::mode_valid(), because the mode validation is always done for the bridge. Fixes: 30e2ae94 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge") Signed-off-by:
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- 16 Aug, 2024 11 commits
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Jeffrey Hugo authored
Pranjal's email address is bouncing. Signed-off-by:
Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by:
Carl Vanderlip <quic_carlv@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240726155310.765164-1-quic_jhugo@quicinc.com
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Jani Nikula authored
Use the mem_is_zero() helper where possible. Conversion done using cocci: | @@ | expression PTR; | expression SIZE; | @@ | | <... | ( | - memchr_inv(PTR, 0, SIZE) == NULL | + mem_is_zero(PTR, SIZE) | | | - !memchr_inv(PTR, 0, SIZE) | + mem_is_zero(PTR, SIZE) | | | - memchr_inv(PTR, 0, SIZE) | + !mem_is_zero(PTR, SIZE) | ) | ...> Reviewed-by:
Kees Cook <kees@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240814100035.3100852-2-jani.nikula@intel.comSigned-off-by:
Jani Nikula <jani.nikula@intel.com>
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Jani Nikula authored
Almost two thirds of the memchr_inv() usages check if the memory area is all zeros, with no interest in where in the buffer the first non-zero byte is located. Checking for !memchr_inv(s, 0, n) is also not very intuitive or discoverable. Add an explicit mem_is_zero() helper for this use case. Reviewed-by:
Andy Shevchenko <andy@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240814100035.3100852-1-jani.nikula@intel.comSigned-off-by:
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-10-tzimmermann@suse.de
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-9-tzimmermann@suse.de
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
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Thomas Zimmermann authored
Replace FB_BLANK_ constants with their counterparts from the backlight subsystem. The values are identical, so there's no change in functionality or semantics. Signed-off-by:
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- 15 Aug, 2024 3 commits
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Jonas Karlman authored
Add max_tmds_clock validation to prepare for additions and changes to the MPLL config table. Use the same rate restrictions that is currently applied. The rate limit for RK3288, RK3399 and RK3568 is based on current mpll table. The rate limit for RK3228 and RK3328 is based on the inno-hdmi-phy pre-pll table. Signed-off-by:
Jonas Karlman <jonas@kwiboo.se> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240615170417.3134517-7-jonas@kwiboo.se
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Jonas Karlman authored
Call dw_hdmi_set_high_tmds_clock_ratio in phy init ops to allow support of High TMDS Bit Rates used by HDMI2.0 display modes. Signed-off-by:
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Jonas Karlman authored
EDID cannot be read on RK3328 until after read_hpd has been called and correct io voltage has been configured based on connection status. When a forced mode is used, e.g. video=1920x1080@60e, the connector detect ops, that in turn normally calls the read_hpd, never gets called. This result in reading EDID to fail in connector get_modes ops. Call dw_hdmi_rk3328_read_hpd at end of dw_hdmi_rk3328_setup_hpd to correct io voltage and allow reading EDID after setup_hpd. Fixes: 1c53ba8f ("drm/rockchip: dw_hdmi: add dw-hdmi support for the rk3328") Signed-off-by:
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