color_gains
const struct color_gains *color_gains;
static const struct color_gains ntsc_color_gains = {
static const struct color_gains pal_color_gains = {
.color_gains = &ntsc_color_gains,
.color_gains = &pal_color_gains,
SUN4I_TVE_CB_CR_GAIN_CB(tv_mode->color_gains->cb) |
SUN4I_TVE_CB_CR_GAIN_CR(tv_mode->color_gains->cr));