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authorSimon Glass2016-01-21 19:43:53 -0700
committerSimon Glass2016-01-21 20:42:35 -0700
commit4082fce92498a64e5e543ad53a1ed5a5c02a64d1 (patch)
tree5fb176a0f6356275bee8f82e1081b5d0fb8350fc /drivers/i2c/muxes
parentd7248c42f153163d8e427649f5f47cc65cb41691 (diff)
dm: i2c: Allow muxes to be enabled for SPL separately
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>
Diffstat (limited to 'drivers/i2c/muxes')
-rw-r--r--drivers/i2c/muxes/Kconfig9
-rw-r--r--drivers/i2c/muxes/Makefile2
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 913093d53df..f959d9de9e8 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -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
diff --git a/drivers/i2c/muxes/Makefile b/drivers/i2c/muxes/Makefile
index 612cc2706b0..47c1240d7e9 100644
--- a/drivers/i2c/muxes/Makefile
+++ b/drivers/i2c/muxes/Makefile
@@ -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