title: How to make a git patch from more than one commit into one file?
body: <p>I'm trying to make a patch, following <a href="https://kernelnewbies.org/FirstKernelPatch" rel="nofollow noreferrer">https://kernelnewbies.org/FirstKernelPatch</a></p>
  
  <p>My patch needs to be made of my last two commits, not just the last one.</p>
  
  <p>When I <code>git format-patch HEAD^^</code> the result is:</p>
  
  <pre><code>0001-added-pca9570-driver.patch
  0002-removed-whitespace.patch
  </code></pre>
  
  <p>I want just one patch with all those changes in it.  The man page just says:</p>
  
  <pre><code>DESCRIPTION
         Prepare each commit with its patch in one file per commit...
  </code></pre>
  
  <p>How can I make one patch from two commits?</p>