Changes in Kconfig

85a063b8 - drm/i2c: tda998x: select CONFIG_DRM_KMS_HELPER

Mon, 24 Mar 2025 21:08:07 +0000

drm/i2c: tda998x: select CONFIG_DRM_KMS_HELPERThis fails to build without the KMS helper functions:x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o: in function `tda998x_detect_work':tda998x_drv.c:(.text+0x4e6): undefined reference to `drm_kms_helper_hotplug_event'x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o: in function `tda998x_bind':tda998x_drv.c:(.text.unlikely+0x33): undefined reference to `drm_simple_encoder_init'x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x584): undefined reference to `drm_atomic_helper_connector_reset'x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x590): undefined reference to `drm_helper_probe_single_connector_modes'x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x5a4): undefined reference to `drm_atomic_helper_connector_duplicate_state'x86_64-linux-ld: drivers/gpu/drm/bridge/tda998x_drv.o:(.rodata+0x5a8): undefined reference to `drm_atomic_helper_connector_destroy_state'Select the missing symbol and fix up the broken whitespace.Fixes: 325ba852d148 ("drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge")Signed-off-by: Arnd Bergmann Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20250324210824.3094660-1-arnd@kernel.orgSigned-off-by: Dmitry Baryshkov List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

325ba852 - drm/i2c: move TDA998x driver under drivers/gpu/drm/bridge

Mon, 13 Jan 2025 09:53:46 +0000

drm/i2c: move TDA998x driver under drivers/gpu/drm/bridgeTDA998x is the HDMI bridge driver, incorporating drm_connector andoptional drm_encoder (created via the component bind API by the TICLDCand HDLCD drivers). Thus it should be residing together with the otherDRM bridge drivers under drivers/gpu/drm/bridge/.Acked-by: Neil Armstrong Acked-by: Liviu Dudau Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20250113-drm-move-tda998x-v3-3-214e0682a5e4@linaro.orgSigned-off-by: Dmitry Baryshkov List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

04972362 - drm/bridge: Add ITE IT6263 LVDS to HDMI converter

Mon, 04 Nov 2024 03:28:03 +0000

drm/bridge: Add ITE IT6263 LVDS to HDMI converterAdd basic HDMI video output support. Currently, only RGB888 outputpixel format is supported. At the LVDS input side, the driversupports single LVDS link and dual LVDS links with "jeida-24" LVDSmapping.Product link:https://www.ite.com.tw/en/product/cate1/IT6263Signed-off-by: Liu Ying Reviewed-by: Biju Das Acked-by: Maxime Ripard Tested-by: Biju Das Reviewed-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20241104032806.611890-11-victor.liu@nxp.comSigned-off-by: Dmitry Baryshkov List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

ac4627c3 - drm/bridge: lt9611: use HDMI Connector helper to set InfoFrames

Sat, 15 Jun 2024 17:53:30 +0000

drm/bridge: lt9611: use HDMI Connector helper to set InfoFramesUse new HDMI Connector helpers in the Lontium LT9611 bridge driver.Program InfoFrames using the helper's callbacks. Also use TMDS char ratevalidation callback to filter out modes, instead of hardcoding 4k@30.The Audio InfoFrame isn't yet handled by these helpers, it requiresadditional drm_bridge interface changes.Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20240615-drm-bridge-hdmi-connector-v1-1-d59fc7865ab2@linaro.orgSigned-off-by: Dmitry Baryshkov List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

a1571002 - drm/bridge: add support for TI TDP158

Mon, 12 Aug 2024 14:51:02 +0000

drm/bridge: add support for TI TDP158TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver.It supports DVI 1.0, HDMI 1.4b and 2.0b.It supports 4 TMDS channels, HPD, and a DDC interface.It supports dual power supply rails (1.1V on VDD, 3.3V on VCC)for power reduction. Several methods of power management areimplemented to reduce overall power consumption.It supports fixed receiver EQ gain using I2C or pin strap tocompensate for different lengths input cable or board traces.Features- AC-coupled TMDS or DisplayPort dual-mode physical layer inputto HDMI 2.0b TMDS physical layer output supporting up to 6Gbpsdata rate, compatible with HDMI 2.0b electrical parameters- DisplayPort dual-mode standard version 1.1- Programmable fixed receiver equalizer up to 15.5dB- Global or independent high speed lane control, pre-emphasisand transmit swing, and slew rate control- I2C or pin strap programmable- Configurable as a DisplayPort redriver through I2C- Full lane swap on main lanes- Low power consumption (200 mW at 6Gbps, 8 mW in shutdown)https://www.ti.com/lit/ds/symlink/tdp158.pdfOn our board, I2C_EN is pulled high.Thus, this code defines a module_i2c_driver.The default settings work fine for our use-case.So this basic driver doesn't need to tweak any I2C registers.Signed-off-by: Marc Gonzalez Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20240812-tdp158-v5-2-78684a84ec23@freebox.fr List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

9da7ec9b - drm/bridge-connector: move to DRM_DISPLAY_HELPER module

Tue, 03 Sep 2024 02:01:57 +0000

drm/bridge-connector: move to DRM_DISPLAY_HELPER moduledrm_bridge_connector is a "leaf" driver, belonging to the displayhelper, rather than the "CRTC" drm_kms_helper module. Move the driverto the drm/display and add necessary Kconfig selection clauses.Suggested-by: Maxime Ripard Acked-by: Maxime Ripard Signed-off-by: Dmitry Baryshkov Link: https://patchwork.freedesktop.org/patch/msgid/20240903-drm-bridge-connector-fix-hdmi-reset-v5-2-daebde6d9857@linaro.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

05b8b6dd - Revert "drm: Switch DRM_DISPLAY_HELPER to depends on"

Mon, 22 Apr 2024 10:30:37 +0000

Revert "drm: Switch DRM_DISPLAY_HELPER to depends on"This reverts commit e075e496f516bf92bc0cbaf94d64e8d4a6b58321, as helpercode should always be selected by the driver that needs it, for theconvenience of the final user configuring a kernel.The user who configures a kernel should not need to know which helpersare needed for the driver he is interested in. Making a driver dependon helper code means that the user needs to know which helpers to enablefirst, which is very user-unfriendly.Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://patchwork.freedesktop.org/patch/msgid/1ba76cc4d96a8afefff5d1bc42fb1e1329c5da68.1713780345.git.geert+renesas@glider.beSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

1e0b9b44 - Revert "drm: Switch DRM_DISPLAY_DP_AUX_BUS to depends on"

Mon, 22 Apr 2024 10:30:36 +0000

Revert "drm: Switch DRM_DISPLAY_DP_AUX_BUS to depends on"This reverts commit 4d15125d7fe637f401e64e33c99513adf6586fdd, as helpercode should always be selected by the driver that needs it, for theconvenience of the final user configuring a kernel.The user who configures a kernel should not need to know which helpersare needed for the driver he is interested in. Making a driver dependon helper code means that the user needs to know which helpers to enablefirst, which is very user-unfriendly.Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://patchwork.freedesktop.org/patch/msgid/79824fec01eb9ab0673b9409f9b39cc8b5cc338d.1713780345.git.geert+renesas@glider.beSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

7fe302ae - Revert "drm: Switch DRM_DISPLAY_DP_HELPER to depends on"

Mon, 22 Apr 2024 10:30:35 +0000

Revert "drm: Switch DRM_DISPLAY_DP_HELPER to depends on"This reverts commit 0323287de87d7e6e9c22c57d7440aa353a2298d0, as helpercode should always be selected by the driver that needs it, for theconvenience of the final user configuring a kernel.The user who configures a kernel should not need to know which helpersare needed for the driver he is interested in. Making a driver dependon helper code means that the user needs to know which helpers to enablefirst, which is very user-unfriendly.Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://patchwork.freedesktop.org/patch/msgid/89ac456805746b6d0c888f10c5120b11aacd3319.1713780345.git.geert+renesas@glider.beSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

95734469 - Revert "drm: Switch DRM_DISPLAY_HDCP_HELPER to depends on"

Mon, 22 Apr 2024 10:30:34 +0000

Revert "drm: Switch DRM_DISPLAY_HDCP_HELPER to depends on"This reverts commit 3166e7e6d935caaef07605a5c90773fbf9ffeaf4, as helpercode should always be selected by the driver that needs it, for theconvenience of the final user configuring a kernel.The user who configures a kernel should not need to know which helpersare needed for the driver he is interested in. Making a driver dependon helper code means that the user needs to know which helpers to enablefirst, which is very user-unfriendly.Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://patchwork.freedesktop.org/patch/msgid/a40e70a0abd3d841c23c107d452a43fdd70ef37a.1713780345.git.geert+renesas@glider.beSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

179b0769 - drm/bridge: add lvds controller support for sam9x7

Sun, 21 Apr 2024 01:10:48 +0000

drm/bridge: add lvds controller support for sam9x7Add a new LVDS controller driver for sam9x7 which does the following:- Prepares and enables the LVDS Peripheral clock- Defines its connector type as DRM_MODE_CONNECTOR_LVDS and adds itselfto the global bridge list.- Identifies its output endpoint as panel and adds it to the encoderdisplay pipeline- Enables the LVDS serializerSigned-off-by: Manikandan Muralidharan Signed-off-by: Dharma Balasubiramani Acked-by: Hari Prasath Gujulan Elango Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20240421011050.43265-3-dharma.b@microchip.comSigned-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20240421011050.43265-3-dharma.b@microchip.com List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

60f7738a - drm/bridge: it6505: Remove useless select

Wed, 27 Mar 2024 10:57:08 +0000

drm/bridge: it6505: Remove useless selectThe IT6505 bridge Kconfig symbol selects a Kconfig symbol that doesn'texist. Remove it.Reviewed-by: Jani Nikula Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-13-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

3166e7e6 - drm: Switch DRM_DISPLAY_HDCP_HELPER to depends on

Wed, 27 Mar 2024 10:57:06 +0000

drm: Switch DRM_DISPLAY_HDCP_HELPER to depends onMost of our helpers have relied on being selected so far throughKconfig, but that creates issues when we have multiple layers of helperswith some depending on others.Indeed, select doesn't select a dependency's dependencies, and thusisn't super intuitive. Depends on however doesn't have that limitation,so we can just switch all the drivers that were selectingDRM_DISPLAY_HDCP_HELPER to depend on it.Reviewed-by: Jani Nikula Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-11-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

0323287d - drm: Switch DRM_DISPLAY_DP_HELPER to depends on

Wed, 27 Mar 2024 10:57:05 +0000

drm: Switch DRM_DISPLAY_DP_HELPER to depends onMost of our helpers have relied on being selected so far throughKconfig, but that creates issues when we have multiple layers of helperswith some depending on others.Indeed, select doesn't select a dependency's dependencies, and thusisn't super intuitive. Depends on however doesn't have that limitation,so we can just switch all the drivers that were selectingDRM_DISPLAY_DP_HELPER to depend on it.Reviewed-by: Jani Nikula Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-10-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

4d15125d - drm: Switch DRM_DISPLAY_DP_AUX_BUS to depends on

Wed, 27 Mar 2024 10:57:04 +0000

drm: Switch DRM_DISPLAY_DP_AUX_BUS to depends onMost of our helpers have relied on being selected so far throughKconfig, but that creates issues when we have multiple layers of helperswith some depending on others.Indeed, select doesn't select a dependency's dependencies, and thusisn't super intuitive. Depends on however doesn't have that limitation,so we can just switch all the drivers that were selectingDRM_DISPLAY_DP_AUX_BUS to depend on it.Reviewed-by: Jani Nikula Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-9-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

e075e496 - drm: Switch DRM_DISPLAY_HELPER to depends on

Wed, 27 Mar 2024 10:57:03 +0000

drm: Switch DRM_DISPLAY_HELPER to depends onMost of our helpers have relied on being selected so far throughKconfig, but that creates issues when we have multiple layers of helperswith some depending on others.Indeed, select doesn't select a dependency's dependencies, and thusisn't super intuitive. Depends on however doesn't have that limitation,so we can just switch all the drivers that were selectingDRM_DISPLAY_HELPER to depend on it.Reviewed-by: Jani Nikula Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-8-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

671b6c9e - drm/display: Make DisplayPort AUX bus Kconfig name consistent

Wed, 27 Mar 2024 10:56:56 +0000

drm/display: Make DisplayPort AUX bus Kconfig name consistentWhile most display helpers Kconfig symbols have the DRM_DISPLAY prefix,the DisplayPort AUX bus implementation uses DRM_DP_AUX_BUS.Since the number of users is limited and it's a selected symbol, we caneasily rename it to make it consistent.Reviewed-by: Jani Nikula Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-1-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

dbd96988 - Revert "drm/bridge: Select DRM_KMS_HELPER for DRM_PANEL_BRIDGE"

Mon, 18 Mar 2024 14:16:21 +0000

Revert "drm/bridge: Select DRM_KMS_HELPER for DRM_PANEL_BRIDGE"This reverts commit e3f18b0dd1db242791afbc3bd173026163ce0ccc.Selecting DRM_KMS_HELPER for DRM_PANEL_BRIDGE leads to:WARNING: unmet direct dependencies detected for DRM_KMS_HELPER Depends on [m]: HAS_IOMEM [=y] && DRM [=m] ...and builds with CONFIG_DRM=m will fail with the above kconfigwarns and then multiple linker error.Reported-by: Imre Deak Reported-by: Jani Nikula Reported-by: Ville Syrjälä Fixes: e3f18b0dd1db ("drm/bridge: Select DRM_KMS_HELPER for DRM_PANEL_BRIDGE")Acked-by: Lucas De Marchi Acked-by: Jani Nikula Tested-by: Jani Nikula Link: https://lore.kernel.org/r/20240318-revert-select-drm_kms_helper-for-drm_panel_bridge-v1-1-52a42a116286@linaro.orgSigned-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20240318-revert-select-drm_kms_helper-for-drm_panel_bridge-v1-1-52a42a116286@linaro.org List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

e3f18b0d - drm/bridge: Select DRM_KMS_HELPER for DRM_PANEL_BRIDGE

Thu, 11 Jan 2024 12:38:04 +0000

drm/bridge: Select DRM_KMS_HELPER for DRM_PANEL_BRIDGESince the kconfig symbol of DRM_PANEL_BRIDGE is only addingbridge/panel.o to drm_kms_helper object, we need to selectDRM_KMS_HELPER to make sure the file is actually getting built.Otherwise with certain defconfigs e.g. devm_drm_of_get_bridge will notbe properly available: aarch64-linux-gnu-ld: drivers/phy/qualcomm/phy-qcom-qmp-combo.o: in function `qmp_combo_bridge_attach': drivers/phy/qualcomm/phy-qcom-qmp-combo.c:3204:(.text+0x8f4): undefined reference to `devm_drm_of_get_bridge'Signed-off-by: Luca Weiss Link: https://lore.kernel.org/r/20240111-drm-panel-bridge-fixup-v1-1-e06292f6f500@fairphone.comReviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20240111-drm-panel-bridge-fixup-v1-1-e06292f6f500@fairphone.com List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig

26513300 - drm/bridge: tc358768: select CONFIG_VIDEOMODE_HELPERS

Mon, 04 Dec 2023 07:27:36 +0000

drm/bridge: tc358768: select CONFIG_VIDEOMODE_HELPERSA dependency on this feature was recently introduced:x86_64-linux-ld: vmlinux.o: in function `tc358768_bridge_pre_enable':tc358768.c:(.text+0xbe3dae): undefined reference to `drm_display_mode_to_videomode'Make sure this is always enabled.Fixes: e5fb21678136 ("drm/bridge: tc358768: Use struct videomode")Signed-off-by: Arnd Bergmann Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20231204072814.968816-1-arnd@kernel.orgSigned-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20231204072814.968816-1-arnd@kernel.org List of files: /linux-6.15/drivers/gpu/drm/bridge/Kconfig