From 11b544ab419971bb829135743dab3397fb43db21 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Thu, 21 Apr 2016 08:19:39 +0200 Subject: [PATCH] i2c: designware_i2c: Integrate set_speed() into dw_i2c_set_bus_speed() Integrating set_speed() into dw_i2c_set_bus_speed() will make the conversion to DM easier for this driver. Signed-off-by: Stefan Roese Cc: Simon Glass Reviewed-by: Bin Meng Cc: Marek Vasut Cc: Heiko Schocher --- drivers/i2c/designware_i2c.c | 37 +++++++++++++----------------------- 1 file changed, 13 insertions(+), 24 deletions(-) diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index d5b3e29e88..035bf23dfc 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -56,16 +56,25 @@ static void dw_i2c_enable(struct i2c_regs *i2c_base, bool enable) } /* - * set_speed - Set the i2c speed mode (standard, high, fast) - * @i2c_spd: required i2c speed mode + * i2c_set_bus_speed - Set the i2c speed + * @speed: required i2c speed * - * Set the i2c speed mode (standard, high, fast) + * Set the i2c speed. */ -static void set_speed(struct i2c_adapter *adap, int i2c_spd) +static unsigned int dw_i2c_set_bus_speed(struct i2c_adapter *adap, + unsigned int speed) { struct i2c_regs *i2c_base = i2c_get_base(adap); unsigned int cntl; unsigned int hcnt, lcnt; + int i2c_spd; + + if (speed >= I2C_MAX_SPEED) + i2c_spd = IC_SPEED_MODE_MAX; + else if (speed >= I2C_FAST_SPEED) + i2c_spd = IC_SPEED_MODE_FAST; + else + i2c_spd = IC_SPEED_MODE_STANDARD; /* to set speed cltr must be disabled */ dw_i2c_enable(i2c_base, false); @@ -103,27 +112,7 @@ static void set_speed(struct i2c_adapter *adap, int i2c_spd) /* Enable back i2c now speed set */ dw_i2c_enable(i2c_base, true); -} - -/* - * i2c_set_bus_speed - Set the i2c speed - * @speed: required i2c speed - * - * Set the i2c speed. - */ -static unsigned int dw_i2c_set_bus_speed(struct i2c_adapter *adap, - unsigned int speed) -{ - int i2c_spd; - - if (speed >= I2C_MAX_SPEED) - i2c_spd = IC_SPEED_MODE_MAX; - else if (speed >= I2C_FAST_SPEED) - i2c_spd = IC_SPEED_MODE_FAST; - else - i2c_spd = IC_SPEED_MODE_STANDARD; - set_speed(adap, i2c_spd); adap->speed = speed; return 0; -- 2.25.1