phy_lpddr4_ck_cs_drv 53 drivers/devfreq/rk3399_dmc.c unsigned int phy_lpddr4_ck_cs_drv; phy_lpddr4_ck_cs_drv 297 drivers/devfreq/rk3399_dmc.c &timing->phy_lpddr4_ck_cs_drv);