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dm: i2c: Allow muxes to be enabled for SPL separately

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Since I2C muxes are seldom needed in SPL, and the code for this increases
the size somewhat, add a separate option to enable I2C muxes for SPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-01-21 19:43:53 -07:00
parent d7248c42f1
commit 4082fce924
3 changed files with 12 additions and 3 deletions
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4
drivers/i2c/Makefile
View file

@ -7,8 +7,8 @@
obj-$(CONFIG_DM_I2C) += i2c-uclass.o
obj-$(CONFIG_DM_I2C_COMPAT) += i2c-uclass-compat.o
obj-$(CONFIG_DM_I2C_GPIO) += i2c-gpio.o
obj-$(CONFIG_I2C_CROS_EC_TUNNEL) += cros_ec_tunnel.o
obj-$(CONFIG_I2C_CROS_EC_LDO) += cros_ec_ldo.o
obj-$(CONFIG_$(SPL_)I2C_CROS_EC_TUNNEL) += cros_ec_tunnel.o
obj-$(CONFIG_$(SPL_)I2C_CROS_EC_LDO) += cros_ec_ldo.o
obj-$(CONFIG_SYS_I2C_ADI) += adi_i2c.o
obj-$(CONFIG_I2C_MV) += mv_i2c.o

9
drivers/i2c/muxes/Kconfig
View file

@ -7,6 +7,15 @@ config I2C_MUX
bus select is handled automatically when that bus is accessed,
using a suitable I2C MUX driver.
config SPL_I2C_MUX
bool "Support I2C multiplexers on SPL"
depends on I2C_MUX
help
This enables I2C buses to be multiplexed, so that you can select
one of several buses using some sort of control mechanism. The
bus select is handled automatically when that bus is accessed,
using a suitable I2C MUX driver.
config I2C_ARB_GPIO_CHALLENGE
bool "GPIO-based I2C arbitration"
depends on I2C_MUX

2
drivers/i2c/muxes/Makefile
View file

@ -4,4 +4,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
obj-$(CONFIG_I2C_ARB_GPIO_CHALLENGE) += i2c-arb-gpio-challenge.o
obj-$(CONFIG_I2C_MUX) += i2c-mux-uclass.o
obj-$(CONFIG_$(SPL_)I2C_MUX) += i2c-mux-uclass.o