drm/i915: use GMBUS to manage i2c links
[linux-2.6.git] / drivers / gpu / drm / i915 / dvo_ch7xxx.c
index 6f1944b..7eaa94e 100644 (file)
@@ -113,7 +113,6 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
 {
        struct ch7xxx_priv *ch7xxx= dvo->dev_priv;
        struct i2c_adapter *adapter = dvo->i2c_bus;
-       struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
        u8 out_buf[2];
        u8 in_buf[2];
 
@@ -135,14 +134,14 @@ static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
        out_buf[0] = addr;
        out_buf[1] = 0;
 
-       if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) {
+       if (i2c_transfer(adapter, msgs, 2) == 2) {
                *ch = in_buf[0];
                return true;
        };
 
        if (!ch7xxx->quiet) {
                DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
-                         addr, i2cbus->adapter.name, dvo->slave_addr);
+                         addr, adapter->name, dvo->slave_addr);
        }
        return false;
 }
@@ -152,7 +151,6 @@ static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
 {
        struct ch7xxx_priv *ch7xxx = dvo->dev_priv;
        struct i2c_adapter *adapter = dvo->i2c_bus;
-       struct intel_i2c_chan *i2cbus = container_of(adapter, struct intel_i2c_chan, adapter);
        uint8_t out_buf[2];
        struct i2c_msg msg = {
                .addr = dvo->slave_addr,
@@ -164,12 +162,12 @@ static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
        out_buf[0] = addr;
        out_buf[1] = ch;
 
-       if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1)
+       if (i2c_transfer(adapter, &msg, 1) == 1)
                return true;
 
        if (!ch7xxx->quiet) {
                DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
-                         addr, i2cbus->adapter.name, dvo->slave_addr);
+                         addr, adapter->name, dvo->slave_addr);
        }
 
        return false;