RX_THRESHOLD 40 drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c int read_len = RX_THRESHOLD + RX_THRESHOLD 99 drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c regmap_field_write(hdmi->field_ddc_fifo_rx_thres, RX_THRESHOLD);