Add a new minimalistic subsystem that handles multiplexer controllers. It provides the same API as Linux and mux drivers should be portable with a minimum effort. This series also includes a port of the Linux's mmio-mux driver.
This series relies on a series that extend the regmap [1].
[1] : https://patchwork.ozlabs.org/project/uboot/list/?series=140752
Changes in v2: - Fixed warning in mux_of_xlate_default() - Improved documentation - Fixed SPL build - insert the mux initialization in init_sequence_r[], just before the console is initialized as its serial port may be muxed - moved the definition of dm_mux_init() in this commit - Call sandbox_set_enable_memio(true) before running the test
Jean-Jacques Hiblot (4): drivers: Add a new framework for multiplexer devices dm: board: complete the initialization of the muxes in initr_dm() drivers: mux: mmio-based syscon mux controller test: Add tests for the multiplexer framework
arch/sandbox/dts/test.dts | 26 +++ common/board_r.c | 16 ++ configs/sandbox_defconfig | 2 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/mux/Kconfig | 22 +++ drivers/mux/Makefile | 7 + drivers/mux/mmio.c | 155 ++++++++++++++++++ drivers/mux/mux-uclass.c | 292 ++++++++++++++++++++++++++++++++++ include/dm/uclass-id.h | 1 + include/dt-bindings/mux/mux.h | 17 ++ include/mux-internal.h | 103 ++++++++++++ include/mux.h | 115 +++++++++++++ test/dm/Makefile | 1 + test/dm/mux-mmio.c | 147 +++++++++++++++++ 15 files changed, 907 insertions(+) create mode 100644 drivers/mux/Kconfig create mode 100644 drivers/mux/Makefile create mode 100644 drivers/mux/mmio.c create mode 100644 drivers/mux/mux-uclass.c create mode 100644 include/dt-bindings/mux/mux.h create mode 100644 include/mux-internal.h create mode 100644 include/mux.h create mode 100644 test/dm/mux-mmio.c