217cf656e2
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 00e1fed93c ("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 <michael@amarulasolutions.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
43 lines
1.1 KiB
Plaintext
43 lines
1.1 KiB
Plaintext
#
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Copyright (c), Vaisala Oyj
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#
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menu "Reboot Mode Support"
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config DM_REBOOT_MODE
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bool "Enable reboot mode using Driver Model"
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depends on DM
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select DEVRES
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help
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Enable support for reboot mode control. This will allow users to
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adjust the boot process based on reboot mode parameter
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passed to U-Boot.
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config DM_REBOOT_MODE_GPIO
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bool "Use GPIOs as reboot mode backend"
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depends on DM_REBOOT_MODE
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help
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Use GPIOs to control the reboot mode. This will allow users to boot
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a device in a specific mode by using a GPIO that can be controlled
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outside U-Boot.
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config DM_REBOOT_MODE_RTC
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bool "Use RTC as reboot mode backend"
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depends on DM_RTC
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depends on DM_REBOOT_MODE
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help
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Use RTC non volatile memory to control the reboot mode. This will allow users to boot
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a device in a specific mode by using a register(s) that can be controlled
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outside U-Boot (e.g. Kernel).
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config REBOOT_MODE_NVMEM
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bool "Use NVMEM reboot mode"
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depends on DM_REBOOT_MODE && NVMEM
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help
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Use any kind of non-volatile memory (EEPROM, RTC, etc) to control the
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reboot mode.
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endmenu
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