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spi: fix config break and reduce overhead of the bus lock on SPI1
The SPI bus lock on SPI1 introduces two side effects:
1. The device lock for the main flash requires the
`CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION` to be selected, however this
option is disabled by default in earlier IDF versions. Some developers
may find their project cannot be built by their old sdkconfig files.
2. Usually we don't need the lock on the SPI1 bus, due to it's
restrictions. However the overhead still exists in this case, the IRAM
cost for static version of semaphore functions, and the time cost when
getting and releasing the lock.
This commit:
1. Add a CONFIG_SPI_FLASH_BYPASS_MAIN_LOCK option, which will forbid the
space cost, as well as the initialization of the main bus lock.
2. When the option is not selected, the bus lock is used, the
`CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION` will be selected explicitly.
3. Revert default value of `CONFIG_FREERTOS_SUPPORT_STATIC_ALLOCATION`
to `n`.
introduced in 49a48644e4
.
Closes https://github.com/espressif/esp-idf/issues/5046
This commit is contained in:

committed by
Michael (XIAO Xufeng)

parent
c2e068f0e4
commit
fdf983e0c4
@@ -687,7 +687,7 @@ esp_err_t esp_flash_app_disable_protect(bool disable)
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if (disable) {
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return esp_flash_app_disable_os_functions(esp_flash_default_chip);
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} else {
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return esp_flash_app_init_os_functions(esp_flash_default_chip);
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return esp_flash_app_enable_os_functions(esp_flash_default_chip);
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}
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}
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#endif
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