5aceeee7e8
On STM32MP15, the SMC backend is optional when OP-TEE is used; the PTA BSEC should be used as it is done on STM32MP13 platform, but the BSEC SMC can be also used: it is a legacy mode in OP-TEE, not recommended but used in previous OP-TEE firmware. The presence of OP-TEE is dynamically detected in STM32MP15x device tree and the supported NVMEM backend is dynamically detected: - PTA with stm32_bsec_pta_find - SMC with stm32_bsec_check Without PTA and SMC detection, the probe is defered for STM32MP15 device. On STM32MP13x platform, only the PTA is supported with cfg->ta = true and this detection is skipped. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Change-Id: I59210046e368cfc22bd3cca2afe1653674f8ece8 Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/266103 Reviewed-by: CITOOLS <MDG-smet-aci-reviews@list.st.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.