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| author | Simon Glass <sjg@chromium.org> | 2020-10-03 20:31:35 +0300 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2020-10-29 23:42:18 +0300 |
| commit | e41651fffda7da55f6d74afdf4b784088184c543 (patch) | |
| tree | f1c44b812fcbbec53555b8c0ad66edf5ccdaa8d3 /dts | |
| parent | 67507e4aab5b58c62cd57b855ce97a83d882479c (diff) | |
| download | u-boot-e41651fffda7da55f6d74afdf4b784088184c543.tar.xz | |
dm: Support parent devices with of-platdata
At present of-platdata does not provide parent information. But this is
useful for I2C devices, for example, since it allows them to determine
which bus they are on.
Add support for setting the parent correctly, by storing the parent
driver_info index in dtoc and reading this in lists_bind_drivers(). This
needs multiple passes since we must process children after their parents
already have been bound.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'dts')
| -rw-r--r-- | dts/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/dts/Kconfig b/dts/Kconfig index 86ea8ce887..aeda542f98 100644 --- a/dts/Kconfig +++ b/dts/Kconfig @@ -355,6 +355,15 @@ config SPL_OF_PLATDATA compatible string, then adding platform data and U_BOOT_DEVICE declarations for each node. See of-plat.txt for more information. +config SPL_OF_PLATDATA_PARENT + bool "Support parent information in devices" + depends on SPL_OF_PLATDATA + default y + help + Generally it is useful to be able to access the parent of a device + with of-platdata. To save space this can be disabled, but in that + case dev_get_parent() will always return NULL; + config TPL_OF_PLATDATA bool "Generate platform data for use in TPL" depends on TPL_OF_CONTROL @@ -376,4 +385,13 @@ config TPL_OF_PLATDATA compatible string, then adding platform data and U_BOOT_DEVICE declarations for each node. See of-plat.txt for more information. +config TPL_OF_PLATDATA_PARENT + bool "Support parent information in devices" + depends on TPL_OF_PLATDATA + default y + help + Generally it is useful to be able to access the parent of a device + with of-platdata. To save space this can be disabled, but in that + case dev_get_parent() will always return NULL; + endmenu |