Grygorii Strashko 3fa88c51c7
drivers: net: cpsw: fix wrong regs access in cpsw_ndo_open ...
The cpsw_ndo_open() could try to access CPSW registers before
calling pm_runtime_get_sync(). This will trigger L3 error:
WARNING: CPU: 0 PID: 21 at drivers/bus/omap_l3_noc.c:147 l3_interrupt_handler+0x220/0x34c()
44000000.ocp:L3 Custom Error: MASTER M2 (64-bit) TARGET L4_FAST (Idle): Data Access in Supervisor mode during Functional access
and CPSW will stop functioning.
Hence, fix it by moving pm_runtime_get_sync() before the first access
to CPSW registers in cpsw_ndo_open().
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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