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The devm alloc functions that we have may follow the Linux kernel model
where allocations are (almost always) automatically free()'d. However,
quite often we don't enable, in full U-Boot, the tracking and free()'ing
functionality. This in turn leads to memory leaks because the driver
author expects that since the functions have the same name as in the
Linux Kernel they have the same behavior. In turn we then get
functionally correct commits such as commit 00e1fed93c8c ("firmware:
ti_sci: Fix memory leaks in devm_ti_sci_get_of_resource") that manually
add these calls. Rather than manually tracking allocations and
implementing free()s, rework things so that we follow expectations by
enabling the DEVRES functionality (outside of xPL phases).
This turns DEVRES from a prompted symbol to a symbol that must be
select'd, and we now remove our non-managed alloc/free functions from
outside of xPL builds.
Reviewed-by: Michael Trimarchi <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Add Kconfig options for MUX_MMIO so that it can be enabled
in SPL stage.
Signed-off-by: Anurag Dutta <[email protected]>
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This adds a driver for mmio-based syscon multiplexers controlled by
bitfields in a syscon register range.
This is heavily based on the linux mmio-mux driver.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Pratyush Yadav <[email protected]>
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Add a new subsystem that handles multiplexer controllers. The API is the
same as in Linux.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Pratyush Yadav <[email protected]>
[trini: Update some error calls to use different functions or pass
correct arguments]
Signed-off-by: Tom Rini <[email protected]>
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