diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c index 1c4c9a5c8e2e..a6e72d3b06b5 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/bit.c @@ -32,25 +32,25 @@ static inline void i2c_drive_scl(struct nouveau_i2c_port *port, int state) { - nouveau_i2c_drive_scl(port, state); + port->func->drive_scl(port, state); } static inline void i2c_drive_sda(struct nouveau_i2c_port *port, int state) { - nouveau_i2c_drive_sda(port, state); + port->func->drive_sda(port, state); } static inline int i2c_sense_scl(struct nouveau_i2c_port *port) { - return nouveau_i2c_sense_scl(port); + return port->func->sense_scl(port); } static inline int i2c_sense_sda(struct nouveau_i2c_port *port) { - return nouveau_i2c_sense_sda(port); + return port->func->sense_sda(port); } static void @@ -77,9 +77,8 @@ i2c_start(struct nouveau_i2c_port *port) { int ret = 0; - port->state = i2c_sense_scl(port); - port->state |= i2c_sense_sda(port) << 1; - if (port->state != 3) { + if (!i2c_sense_scl(port) || + !i2c_sense_sda(port)) { i2c_drive_scl(port, 0); i2c_drive_sda(port, 1); if (!i2c_raise_scl(port)) @@ -184,10 +183,13 @@ i2c_addr(struct nouveau_i2c_port *port, struct i2c_msg *msg) static int i2c_bit_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { - struct nouveau_i2c_port *port = (struct nouveau_i2c_port *)adap; + struct nouveau_i2c_port *port = adap->algo_data; struct i2c_msg *msg = msgs; int ret = 0, mcnt = num; + if (port->func->acquire) + port->func->acquire(port); + while (!ret && mcnt--) { u8 remaining = msg->len; u8 *ptr = msg->buf; |