diff options
Diffstat (limited to 'drivers/i2c/Kconfig')
| -rw-r--r-- | drivers/i2c/Kconfig | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 86fb36b5d4..9a62ddd9ca 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -19,6 +19,30 @@ config DM_I2C_COMPAT to convert all code for a board in a single commit. It should not be enabled for any board in an official release. +config I2C_CROS_EC_TUNNEL + tristate "Chrome OS EC tunnel I2C bus" + depends on CROS_EC + help + This provides an I2C bus that will tunnel i2c commands through to + the other side of the Chrome OS EC to the I2C bus connected there. + This will work whatever the interface used to talk to the EC (SPI, + I2C or LPC). Some Chromebooks use this when the hardware design + does not allow direct access to the main PMIC from the AP. + +config I2C_CROS_EC_LDO + bool "Provide access to LDOs on the Chrome OS EC" + depends on CROS_EC + ---help--- + On many Chromebooks the main PMIC is inaccessible to the AP. This is + often dealt with by using an I2C pass-through interface provided by + the EC. On some unfortunate models (e.g. Spring) the pass-through + is not available, and an LDO message is available instead. This + option enables a driver which provides very basic access to those + regulators, via the EC. We implement this as an I2C bus which + emulates just the TPS65090 messages we know about. This is done to + avoid duplicating the logic in the TPS65090 regulator driver for + enabling/disabling an LDO. + config DM_I2C_GPIO bool "Enable Driver Model for software emulated I2C bus driver" depends on DM_I2C && DM_GPIO @@ -73,3 +97,5 @@ config SYS_I2C_UNIPHIER_F help Support for UniPhier FIFO-builtin I2C controller driver. This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs. + +source "drivers/i2c/muxes/Kconfig" |