diff options
| author | Frieder Schrempf <frieder.schrempf@kontron.de> | 2025-07-22 10:31:18 +0200 |
|---|---|---|
| committer | Fabio Estevam <festevam@gmail.com> | 2025-07-24 07:59:22 -0300 |
| commit | 4a9d6b2e1d963899cac443d931d29fa23a47ff23 (patch) | |
| tree | 5d40915c1935946cc9416215978fd757ee81ea47 /drivers/fpga/fpga.c | |
| parent | 25140f89086a7c0ae399377848569f80efdfeb53 (diff) | |
imx: power-domain: Fix crash due to uninitialized 'id' field
In case of the i.MX8M power-domains (i.MX8MQ, MM, MN) there is only
one power-domain for each device. Therefore the 'id' field in struct
power_domain should always be zero.
Currently if a power-domain is accessed after the initial bind, the
'id' field is left uninitialized. This didn't cause any problems
until the following commits were introduced:
9086b64ca071 ("power-domain: Add support for refcounting (again)")
a785ef24487b ("imx: power-domain: Enable refcounting on imx8mp")
Now the 'id' field gets accessed in the power_domain_off() sequence
and the invalid value causes "Synchronous Abort" failures.
This was observed on a i.MX8MM board when running "usb start" and
then "usb stop".
Fix this issue by setting power_domain->id to '0' in
imx8m_power_domain_of_xlate().
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Fixes: d08a194871fd ("imx: add support for i.MX8MQ power domain controller")
Fixes: 9086b64ca071 ("power-domain: Add support for refcounting (again)")
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'drivers/fpga/fpga.c')
0 files changed, 0 insertions, 0 deletions