This adds multiple i2c channel support for I2C.
Signed-off-by: Alim Akhtar alim.akhtar@samsung.com Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com Acked-by: Simon Glass sjg@chromium.org --- Changes in V2: - None Changes in V3: - None drivers/i2c/s3c24x0_i2c.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c index 156b5a4..8254c2b 100644 --- a/drivers/i2c/s3c24x0_i2c.c +++ b/drivers/i2c/s3c24x0_i2c.c @@ -195,6 +195,33 @@ static void i2c_bus_init(struct s3c24x0_i2c *i2c, unsigned int bus) i2c_ch_init(i2c, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); }
+/* + * MULTI BUS I2C support + */ + +#ifdef CONFIG_I2C_MULTI_BUS +int i2c_set_bus_num(unsigned int bus) +{ + struct s3c24x0_i2c *i2c; + + if ((bus < 0) || (bus >= CONFIG_MAX_I2C_NUM)) { + debug("Bad bus: %d\n", bus); + return -1; + } + + g_current_bus = bus; + i2c = get_base_i2c(g_current_bus); + i2c_bus_init(i2c, g_current_bus); + + return 0; +} + +unsigned int i2c_get_bus_num(void) +{ + return g_current_bus; +} +#endif + #ifdef CONFIG_EXYNOS5 void i2c_init(int speed, int slaveadd) {