diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_i2c.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_i2c.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.c b/drivers/gpu/drm/nouveau/nouveau_i2c.c index 97ba89ef42a0..5588e66dd9fc 100644 --- a/drivers/gpu/drm/nouveau/nouveau_i2c.c +++ b/drivers/gpu/drm/nouveau/nouveau_i2c.c @@ -281,12 +281,23 @@ nouveau_i2c_find(struct drm_device *dev, int index) bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr) { - struct i2c_msg msg = { - .addr = addr, - .len = 0, + uint8_t buf[] = { 0 }; + struct i2c_msg msgs[] = { + { + .addr = addr, + .flags = 0, + .len = 1, + .buf = buf, + }, + { + .addr = addr, + .flags = I2C_M_RD, + .len = 1, + .buf = buf, + } }; - return i2c_transfer(&i2c->adapter, &msg, 1) == 1; + return i2c_transfer(&i2c->adapter, msgs, 2) == 2; } int |
