diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/intel_i2c.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/linux-core/intel_i2c.c b/linux-core/intel_i2c.c index e23283fb..d4cf7eef 100644 --- a/linux-core/intel_i2c.c +++ b/linux-core/intel_i2c.c @@ -80,8 +80,8 @@ static void set_clock(void *data, int state_high) else clock_bits = GPIO_CLOCK_DIR_OUT | GPIO_CLOCK_DIR_MASK | GPIO_CLOCK_VAL_MASK; - I915_WRITE(chan->reg, reserved | clock_bits); + udelay(I2C_RISEFALL_TIME); /* wait for the line to change state */ } static void set_data(void *data, int state_high) @@ -103,6 +103,7 @@ static void set_data(void *data, int state_high) GPIO_DATA_VAL_MASK; I915_WRITE(chan->reg, reserved | data_bits); + udelay(I2C_RISEFALL_TIME); /* wait for the line to change state */ } /** @@ -146,7 +147,7 @@ struct intel_i2c_chan *intel_i2c_create(drm_device_t *dev, const u32 reg, chan->algo.setscl = set_clock; chan->algo.getsda = get_data; chan->algo.getscl = get_clock; - chan->algo.udelay = 20; /* between calls to (set|get)_(clock|data) */ + chan->algo.udelay = 20; chan->algo.timeout = usecs_to_jiffies(2200); chan->algo.data = chan; @@ -158,6 +159,7 @@ struct intel_i2c_chan *intel_i2c_create(drm_device_t *dev, const u32 reg, /* JJJ: raise SCL and SDA? */ set_data(chan, 1); set_clock(chan, 1); + udelay(20); return chan; |