nvidiafb: Correctly assign the i2c class with the port reversal

If the i2c ports are to be reversed, I2C_CLASS_HWMON assignment must also be
reversed.
Signed-off-by: NAntonino Daplas <adaplas@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/video/nvidia/nv_i2c.c

@@ -126,10 +126,12 @@ void nvidia_create_i2c_busses(struct nvidia_par *par)
 	par->chan[2].par = par;
 
 	par->chan[0].ddc_base = (par->reverse_i2c) ? 0x36 : 0x3e;
- 	nvidia_setup_i2c_bus(&par->chan[0], "nvidia #0", 0);
+ 	nvidia_setup_i2c_bus(&par->chan[0], "nvidia #0",
+			     (par->reverse_i2c) ? I2C_CLASS_HWMON : 0);
 
 	par->chan[1].ddc_base = (par->reverse_i2c) ? 0x3e : 0x36;
- 	nvidia_setup_i2c_bus(&par->chan[1], "nvidia #1", I2C_CLASS_HWMON);
+ 	nvidia_setup_i2c_bus(&par->chan[1], "nvidia #1",
+			     (par->reverse_i2c) ? 0 : I2C_CLASS_HWMON);
 
 	par->chan[2].ddc_base = 0x50;
  	nvidia_setup_i2c_bus(&par->chan[2], "nvidia #2", 0);