title: what is Gpio hog in device tree?
body: <p>I am trying to set a pin mode in device tree for am335. I change the pinmux node in device tree as below.</p>
  
  <pre><code>pinctrl_test: pinctrl_test_pins {
      pinctrl-single,pins = &lt;
          0x078 0x07 /* P9_12 OUTPUT | MODE7 | PULLDOWN */
          0x048 0x07 /* P9_14 OUTPUT | MODE7 | PULLDOWN */
      &gt;;
  }
  </code></pre>
  
  <p>but I didn't see any changes in <code>/sys/kernel/debug/pinctrl/44e10800.pinmux/pins</code> .</p>
  
  <p>I found some information about GPIO -HOG , but could not find good documentation.</p>
  
  <p>The Kernel version I am using is 4.8.13</p>