[U-Boot] [PATCH 30/50] dm: i2c: Allow muxes to be enabled for SPL separately

Simon Glass
2016-01-13T23:25:20Z

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>
---

drivers/i2c/Makefile | 4 ++--
drivers/i2c/muxes/Kconfig | 9 +++++++++
drivers/i2c/muxes/Makefile | 2 +-
3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 811ad9b..bbbc0dc 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -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
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 913093d..f959d9d 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 612cc27..47c1240 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
--
2.6.0.rc2.230.g3dd15c0