Default Quick question about my tv

Hi everyone I recently purchased a new tv and I have a quick question about it

I have my ps4 hooked up to my tv and today I noticed on the display it said "hdmi 1/mhl" and when I looked at my other inputs they were all "hdmi 2 ,hdmi 3 and hdmi 4" without mhl after it

Is it ok to have my ps4 hooked up to "hdmi 1/mhl" or am I risking off damaging my console or tv?

Thanks a bunch to whom ever replies
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