2 * Copyright 2009 Red Hat Inc.
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27 nv_rdaux(struct nvkm_i2c_port *port, u32 addr, u8 *data, u8 size)
29 struct nvkm_i2c *i2c = nvkm_i2c(port);
30 if (port->func->aux) {
31 int ret = i2c->acquire(port, 0);
33 ret = port->func->aux(port, true, 9, addr, data, size);
42 nv_wraux(struct nvkm_i2c_port *port, u32 addr, u8 *data, u8 size)
44 struct nvkm_i2c *i2c = nvkm_i2c(port);
45 if (port->func->aux) {
46 int ret = i2c->acquire(port, 0);
48 ret = port->func->aux(port, true, 8, addr, data, size);
57 aux_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
59 struct nvkm_i2c_port *port = adap->algo_data;
60 struct nvkm_i2c *i2c = nvkm_i2c(port);
61 struct i2c_msg *msg = msgs;
67 ret = i2c->acquire(port, 0);
72 u8 remaining = msg->len;
76 u8 cnt = (remaining > 16) ? 16 : remaining;
79 if (msg->flags & I2C_M_RD)
84 if (mcnt || remaining > 16)
87 ret = port->func->aux(port, true, cmd, msg->addr, ptr, cnt);
105 aux_func(struct i2c_adapter *adap)
107 return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
110 const struct i2c_algorithm nvkm_i2c_aux_algo = {
111 .master_xfer = aux_xfer,
112 .functionality = aux_func