S5P_CLKSRC2_G3D_SHIFT
#define S5P_CLKSRC2_G3D_MASK (0x3 << S5P_CLKSRC2_G3D_SHIFT)
reg |= (1 << S5P_CLKSRC2_G3D_SHIFT) |
reg |= (0 << S5P_CLKSRC2_G3D_SHIFT) |
#define S5P_CLKSRC2_G3D_MASK (0x3 << S5P_CLKSRC2_G3D_SHIFT)