From 6e38cf3b442120a84e69faf1ac9a7b4cd79d1ad6 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Wed, 28 Jun 2017 17:23:29 +0300 Subject: [PATCH] i2c: designware: Let slave adapter support be optional Only certain system configurations may use the I2C slave mode so let the support be optional. This allow reducing module size if needed: text data bss dec hex filename 10328 1336 16 11680 2da0 drivers/i2c/busses/i2c-designware-core.ko 7222 1136 8 8366 20ae drivers/i2c/busses/i2c-designware-core.ko Signed-off-by: Jarkko Nikula Reviewed-by: Andy Shevchenko Tested-by: Luis Oliveira Signed-off-by: Wolfram Sang --- drivers/i2c/busses/Kconfig | 1 - drivers/i2c/busses/i2c-designware-core.h | 4 ++++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index c98c8e51c448..1006b230b236 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -483,7 +483,6 @@ config I2C_DESIGNWARE_CORE config I2C_DESIGNWARE_PLATFORM tristate "Synopsys DesignWare Platform" select I2C_DESIGNWARE_CORE - select I2C_DESIGNWARE_SLAVE depends on (ACPI && COMMON_CLK) || !ACPI help If you say yes to this option, support will be included for the diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index a403dcdfca4b..9fee4c054d3d 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -309,7 +309,11 @@ void i2c_dw_disable_int(struct dw_i2c_dev *dev); extern u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev); extern int i2c_dw_probe(struct dw_i2c_dev *dev); +#if IS_ENABLED(CONFIG_I2C_DESIGNWARE_SLAVE) extern int i2c_dw_probe_slave(struct dw_i2c_dev *dev); +#else +static inline int i2c_dw_probe_slave(struct dw_i2c_dev *dev) { return -EINVAL; } +#endif #if IS_ENABLED(CONFIG_I2C_DESIGNWARE_BAYTRAIL) extern int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev); -- 2.20.1