From: Laurent Pinchart Date: Tue, 24 Jul 2012 12:13:59 +0000 (+0200) Subject: i2c-omap: Add support for I2C_M_STOP message flag X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fb604a3d58b79ef722942f664f11dee5e1f73ea4;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git i2c-omap: Add support for I2C_M_STOP message flag Generate a stop condition after each message marked with I2C_M_STOP. [JD: Add I2C_FUNC_PROTOCOL_MANGLING.] Signed-off-by: Laurent Pinchart Signed-off-by: Jean Delvare --- diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 801df6000e9b..c2148332de0f 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -545,6 +545,8 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap, if (dev->speed > 400) w |= OMAP_I2C_CON_OPMODE_HS; + if (msg->flags & I2C_M_STOP) + stop = 1; if (msg->flags & I2C_M_TEN) w |= OMAP_I2C_CON_XA; if (!(msg->flags & I2C_M_RD)) @@ -658,7 +660,8 @@ out: static u32 omap_i2c_func(struct i2c_adapter *adap) { - return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK); + return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK) | + I2C_FUNC_PROTOCOL_MANGLING; } static inline void