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| author | Samuel Holland <samuel@sholland.org> | 2021-10-08 00:17:20 -0500 |
|---|---|---|
| committer | Andre Przywara <andre.przywara@arm.com> | 2021-10-12 09:50:56 +0100 |
| commit | 104950a7feae7926e40676f27cfbd279a43b4bc3 (patch) | |
| tree | ce45115b87c8d40491d8b1e3e44fcb1aaf050901 /drivers/i2c/Kconfig | |
| parent | 4ab39e74b640799748dfdef49f099b416a5ae497 (diff) | |
| download | u-boot-104950a7feae7926e40676f27cfbd279a43b4bc3.zip u-boot-104950a7feae7926e40676f27cfbd279a43b4bc3.tar.gz u-boot-104950a7feae7926e40676f27cfbd279a43b4bc3.tar.bz2 | |
i2c: Add a DM_I2C driver for the sun6i P2WI controller
This bus controller is used to communicate with an X-Powers AXP PMIC.
Currently, various drivers access PMIC registers through a platform-
specific non-DM "pmic_bus" interface, which depends on the legacy I2C
framework. In order to convert those drivers to use DM_PMIC, this bus
needs a DM_I2C driver.
Refactor the p2wi functions to take the base address as a parameter,
and implement both the existing interface (which is still needed in
SPL) and the DM_I2C interface on top of them.
The register for switching between I2C/P2WI/RSB mode is the same across
all PMIC variants. Move that to the common header, so it can be used by
both interface implementations.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Diffstat (limited to 'drivers/i2c/Kconfig')
| -rw-r--r-- | drivers/i2c/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 57cac44..0adf143 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -575,6 +575,14 @@ config SYS_I2C_STM32F7 _ Optional clock stretching _ Software reset +config SYS_I2C_SUN6I_P2WI + bool "Allwinner sun6i P2WI controller" + depends on ARCH_SUNXI + help + Support for the P2WI (Push/Pull 2 Wire Interface) controller embedded + in the Allwinner A31 and A31s SOCs. This interface is used to connect + to specific devices like the X-Powers AXP221 PMIC. + config SYS_I2C_SYNQUACER bool "Socionext SynQuacer I2C controller" depends on ARCH_SYNQUACER && DM_I2C |