diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c index 5de074ad170b..02eb42be2e9e 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/aux.c @@ -22,15 +22,19 @@ * Authors: Ben Skeggs */ -#include <subdev/i2c.h> +#include "priv.h" int nv_rdaux(struct nouveau_i2c_port *port, u32 addr, u8 *data, u8 size) { + struct nouveau_i2c *i2c = nouveau_i2c(port); if (port->func->aux) { - if (port->func->acquire) - port->func->acquire(port); - return port->func->aux(port, 9, addr, data, size); + int ret = i2c->acquire(port, 0); + if (ret == 0) { + ret = port->func->aux(port, true, 9, addr, data, size); + i2c->release(port); + } + return ret; } return -ENODEV; } @@ -38,10 +42,14 @@ nv_rdaux(struct nouveau_i2c_port *port, u32 addr, u8 *data, u8 size) int nv_wraux(struct nouveau_i2c_port *port, u32 addr, u8 *data, u8 size) { + struct nouveau_i2c *i2c = nouveau_i2c(port); if (port->func->aux) { - if (port->func->acquire) - port->func->acquire(port); - return port->func->aux(port, 8, addr, data, size); + int ret = i2c->acquire(port, 0); + if (ret == 0) { + ret = port->func->aux(port, true, 8, addr, data, size); + i2c->release(port); + } + return ret; } return -ENODEV; } @@ -50,13 +58,16 @@ static int aux_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { struct nouveau_i2c_port *port = adap->algo_data; + struct nouveau_i2c *i2c = nouveau_i2c(port); struct i2c_msg *msg = msgs; int ret, mcnt = num; if (!port->func->aux) return -ENODEV; - if ( port->func->acquire) - port->func->acquire(port); + + ret = i2c->acquire(port, 0); + if (ret) + return ret; while (mcnt--) { u8 remaining = msg->len; @@ -74,9 +85,11 @@ aux_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) if (mcnt || remaining > 16) cmd |= 4; /* MOT */ - ret = port->func->aux(port, cmd, msg->addr, ptr, cnt); - if (ret < 0) + ret = port->func->aux(port, true, cmd, msg->addr, ptr, cnt); + if (ret < 0) { + i2c->release(port); return ret; + } ptr += cnt; remaining -= cnt; @@ -85,6 +98,7 @@ aux_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) msg++; } + i2c->release(port); return num; } |