diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h index 6b6224dbd5bb..a63c5ac69f66 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h @@ -89,7 +89,7 @@ int g94_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); int gf117_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); int gf119_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); int gk104_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); -int gm204_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); +int gm200_i2c_new(struct nvkm_device *, int, struct nvkm_i2c **); static inline int nvkm_rdi2cr(struct i2c_adapter *adap, u8 addr, u8 reg) @@ -108,6 +108,22 @@ nvkm_rdi2cr(struct i2c_adapter *adap, u8 addr, u8 reg) } static inline int +nv_rd16i2cr(struct i2c_adapter *adap, u8 addr, u8 reg) +{ + u8 val[2]; + struct i2c_msg msgs[] = { + { .addr = addr, .flags = 0, .len = 1, .buf = ® }, + { .addr = addr, .flags = I2C_M_RD, .len = 2, .buf = val }, + }; + + int ret = i2c_transfer(adap, msgs, ARRAY_SIZE(msgs)); + if (ret != 2) + return -EIO; + + return val[0] << 8 | val[1]; +} + +static inline int nvkm_wri2cr(struct i2c_adapter *adap, u8 addr, u8 reg, u8 val) { u8 buf[2] = { reg, val }; @@ -122,6 +138,21 @@ nvkm_wri2cr(struct i2c_adapter *adap, u8 addr, u8 reg, u8 val) return 0; } +static inline int +nv_wr16i2cr(struct i2c_adapter *adap, u8 addr, u8 reg, u16 val) +{ + u8 buf[3] = { reg, val >> 8, val & 0xff}; + struct i2c_msg msgs[] = { + { .addr = addr, .flags = 0, .len = 3, .buf = buf }, + }; + + int ret = i2c_transfer(adap, msgs, ARRAY_SIZE(msgs)); + if (ret != 1) + return -EIO; + + return 0; +} + static inline bool nvkm_probe_i2c(struct i2c_adapter *adap, u8 addr) { |