Thadeu Lima de Souza Cascardo 1ba29398e5 fpga: dfl: use subsys_initcall to allow built-in drivers to be added ...

[ Upstream commit 267f53140c9d0bf270bbe0148082e9b8e5011273 ]

The dfl code adds a bus. If it is built-in and there is a built-in driver
as well, the dfl module_init may be called after the driver module_init,
leading to a failure to register the driver as the bus has not been added
yet.

Use subsys_initcall, which guarantees it will be called before the drivers
init code.

Without the fix, we see failures like this:

[    0.479475] Driver 'intel-m10-bmc' was unable to register with bus_type 'dfl' because the bus was not initialized.

Cc: stable@vger.kernel.org
Fixes: 9ba3a0aa09fe ("fpga: dfl: create a dfl bus type to support DFL devices")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Link: https://lore.kernel.org/r/20251215-dfl_subsys-v1-1-21807bad6b10@igalia.com
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>

2026-04-12 13:56:49 +08:00

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altera-cvp.c

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altera-fpga2sdram.c

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altera-freeze-bridge.c

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altera-hps2fpga.c

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altera-pr-ip-core-plat.c

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altera-pr-ip-core.c

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altera-ps-spi.c

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dfl-afu-dma-region.c

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dfl-afu-main.c

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dfl-afu-region.c

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dfl-afu.h

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dfl-fme-br.c

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dfl-fme-main.c

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dfl-fme-mgr.c

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dfl-fme-pr.c

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dfl-fme-pr.h

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dfl-fme-region.c

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dfl-fme.h

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dfl-pci.c

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dfl.c

fpga: dfl: use subsys_initcall to allow built-in drivers to be added

2026-04-12 13:56:49 +08:00

dfl.h

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fpga-bridge.c

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fpga-mgr.c

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fpga-region.c

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ice40-spi.c

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Kconfig

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machxo2-spi.c

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Makefile

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of-fpga-region.c

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socfpga-a10.c

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socfpga.c

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ts73xx-fpga.c

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xilinx-pr-decoupler.c

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xilinx-spi.c

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zynq-fpga.c

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