ck_pol 91 drivers/gpu/drm/mediatek/mtk_dpi.c enum mtk_dpi_polarity ck_pol; ck_pol 200 drivers/gpu/drm/mediatek/mtk_dpi.c pol = (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ? 0 : CK_POL) | ck_pol 452 drivers/gpu/drm/mediatek/mtk_dpi.c dpi_pol.ck_pol = MTK_DPI_POLARITY_FALLING;