diff options
Diffstat (limited to 'doc/driver-model/of-plat.rst')
| -rw-r--r-- | doc/driver-model/of-plat.rst | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/doc/driver-model/of-plat.rst b/doc/driver-model/of-plat.rst index 78afbdbcc9..4ef2fe699a 100644 --- a/doc/driver-model/of-plat.rst +++ b/doc/driver-model/of-plat.rst @@ -162,9 +162,6 @@ and the following device declarations: .parent_idx = -1, }; - void dm_populate_phandle_data(void) { - } - The device is then instantiated at run-time and the platform data can be accessed using: @@ -190,10 +187,7 @@ This macro produces no code, but it is by dtoc tool. The parent_idx is the index of the parent driver_info structure within its linker list (instantiated by the U_BOOT_DRVINFO() macro). This is used to support -dev_get_parent(). The dm_populate_phandle_data() is included to allow for -fix-ups required by dtoc. It is not currently used. The values in 'clocks' are -the index of the driver_info for the target device followed by any phandle -arguments. This is used to support device_get_by_driver_info_idx(). +dev_get_parent(). During the build process dtoc parses both U_BOOT_DRIVER and DM_DRIVER_ALIAS to build a list of valid driver names and driver aliases. If the 'compatible' @@ -337,9 +331,11 @@ prevents them being used inadvertently. All usage must be bracketed with #if CONFIG_IS_ENABLED(OF_PLATDATA). The dt-plat.c file contains the device declarations and is is built in -spl/dt-plat.c. It additionally contains the definition of -dm_populate_phandle_data() which is responsible of filling the phandle -information by adding references to U_BOOT_DRVINFO by using DM_DRVINFO_GET +spl/dt-plat.c. + +The dm_populate_phandle_data() function that was previous needed has now been +removed, since dtoc can address the drivers directly from dt-plat.c and does +not need to fix up things at runtime. The pylibfdt Python module is used to access the devicetree. |