Tiefling heritage spell-like ability vs. Fiendish Darkness Feat

[Swordteach]

According to the Fiendish Darkness feat in Blood of Fiends:

Fiendish Darkness
You can use your darkness spell-like ability more often.
Prerequisites: Darkness spell-like ability, tiefling.
Benefit: You can use darkness three times per day as a
spell-like ability.
Normal: You can use darkness once a day as a spell-like ability.

However, I am building a Rakshasa Heritage Tiefling with the spell-like ability to use Detect Thoughts instead of Darkness once a day. Is there any precedence for using this feat to grant Heritage SLA's 3/day also?

[Thymus Vulgaris]

No, but it wouldn't be unreasonable to homebrew a feat that does the same for your heritage SLA if your GM will let you.

[Swordteach]

Unfortunately I play in PFS so I doubt they will accept homebrew. I was looking for something more official.

[Victor Zajic]

Yeah. RAW says no, but it's a very reasonable thing to allow as a house-rule.

[Paladin of Baha-who?]

If you don't have the darkness spell-like ability, then you don't qualify for the feat. Anything else would be a houserule.