Conor Dooley cad3327ab5 firmware: microchip: fail auto-update probe if no flash found ...

commit c7596f9001 upstream.

There's no point letting the driver probe if there is no flash, as
trying to do a firmware upload will fail. Move the code that attempts
to get the flash from firmware upload to probe, and let it emit a
message to users stating why auto-update is not supported.
The code currently could have a problem if there's a flash in
devicetree, but the system controller driver fails to get a pointer to
it from the mtd subsystem, which will cause
mpfs_sys_controller_get_flash() to return an error. Check for errors and
null, instead of just null, in the new clause.

CC: stable@vger.kernel.org
Fixes: ec5b0f1193 ("firmware: microchip: add PolarFire SoC Auto Update support")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2026-04-11 14:24:47 +02:00

..

Kconfig

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Makefile

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mpfs-auto-update.c

firmware: microchip: fail auto-update probe if no flash found

2026-04-11 14:24:47 +02:00