configs: Enable USB Type-C/PD support for FUSB302-based HATs - #7532
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pelwell merged 1 commit intoAug 3, 2026
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The FUSB302 is an I2C-attached USB Type-C/PD sink controller used by Pi HATs that need to negotiate more than the default 5V over a USB-C connector. None of the Pi defconfigs enable CONFIG_TYPEC, so the TCPM state machine that fusb302 binds to is unavailable and the driver cannot be loaded at all, even out-of-tree. Enable the Type-C Port Controller Manager and the FUSB302 driver as modules. CONFIG_TYPEC_TCPCI is not required: TYPEC_FUSB302 depends only on I2C within the TYPEC_TCPM block. The dependencies (CONFIG_USB and CONFIG_I2C) are already enabled in all of these defconfigs, and nothing probes unless the device tree describes an FUSB302, so there is no runtime effect on machines without the hardware. Signed-off-by: Matthew Davis <fedoraproject@virtual.drop.net>
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kernel: Strict pinmux support for pinctrl-bcm2835 See: raspberrypi/linux#7530 kernel: dtoverlays: mcp2515: Add spi6 support See: raspberrypi/linux#7534 kernel: configs: Enable USB Type-C/PD support for FUSB302-based HATs See: raspberrypi/linux#7532 kernel: Backport vd65g4 camera driver support See: raspberrypi/linux#7463
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kernel: Strict pinmux support for pinctrl-bcm2835 See: raspberrypi/linux#7530 kernel: dtoverlays: mcp2515: Add spi6 support See: raspberrypi/linux#7534 kernel: configs: Enable USB Type-C/PD support for FUSB302-based HATs See: raspberrypi/linux#7532 kernel: Backport vd65g4 camera driver support See: raspberrypi/linux#7463
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Enables the USB Type-C Port Controller Manager and the Fairchild FUSB302 driver as modules in the Raspberry Pi defconfigs.
Fixes #7531
Why
The FUSB302 is an I2C-attached USB Type-C/PD sink controller appearing on Pi HATs that need to negotiate more than the default 5 V over USB-C (e.g. the FutureProofHomes Satellite1 voice-satellite HAT). Since no Pi defconfig enables
CONFIG_TYPEC, theTYPEC_TCPMstate machine thatfusb302binds to is absent, so the driver cannot be loaded at all — not even out-of-tree. Today the only option is a full custom kernel rebuild whose entire delta fromrpi-6.18.yis these three symbols.What
in all five current Pi defconfigs — 32-bit included, per the question raised in #7305:
arch/arm64/configs/bcm2711_defconfigarch/arm64/configs/bcm2711_rt_defconfigarch/arm64/configs/bcm2712_defconfigarch/arm/configs/bcm2709_defconfigarch/arm/configs/bcmrpi_defconfigNotes
=m, so the built-in kernel size is unchanged.CONFIG_TYPEC_TCPCIis deliberately not enabled —TYPEC_FUSB302sits underif TYPEC_TCPMand depends only on I2C, so the TCPCI-compliant-controller driver isn't needed.TYPEC_TCPMneedsCONFIG_USB(already=y) andTYPEC_FUSB302needsCONFIG_I2C(already=y).USB_ROLE_SWITCHandPOWER_SUPPLYareselected byTYPEC_TCPMand already enabled.savedefconfigordering (betweenCONFIG_USB_G_WEBCAM=mandCONFIG_MMC=y); the hunk is identical in all five files.rpi-6.18.yrather than rebased, to avoid the spurious conflicts seen in rpi-6.18.y configs: enable NET_ACT_CTINFO in Raspberry Pi defconfigs #7312.Happy to adjust the scope — drop the 32-bit or RT configs, or reorder — whatever suits.