AAT2870_BL_CH_EN 45 drivers/video/backlight/aat2870_bl.c return aat2870->write(aat2870, AAT2870_BL_CH_EN, AAT2870_BL_CH_EN 54 drivers/video/backlight/aat2870_bl.c return aat2870->write(aat2870, AAT2870_BL_CH_EN, 0x0);