linux-phytec-ti

Merge branch 'v4.9-ssd1307fb-for-tiL-4.9' into audio-display-ti-linux-4.9.y

fbdev/ssd1307fb forward ports from ti-linux-4.4.y for tiL4.9

* v4.9-ssd1307fb-for-tiL-4.9:
  fbdev/ssd1307fb: clear screen in probe
  fbdev/ssd1307fb: add support to enable VBAT
  fbdev: ssd1307fb: Make reset gpio devicetree property optional
  fbdev: ssd1307fb: Remove reset-active-low from the DT binding document
  fbdev: ssd1307fb: Start to use gpiod API for reset gpio