Preheat oven to 350 degrees F. Spray with an 8-inch or 9-inch springform pan. Line the bottom of the pan with parchment paper. Lightly spray with cooking spray, set aside.
In a mixing bowl, cream butter and sugar together until fluffy. Add eggs, one at a time, mixing well after each addition. Add the vanilla and add in the Greek yogurt and combine.
In a small bowl, add the flour, baking powder and salt and whisk together and add to the wet mixture.
In another small bowl, whisk together sugar and cinnamon.
Spread half of the batter into prepared cake pan. Then add 2/3 of the fruit on top, then sprinkle with half of cinnamon-sugar mixture and swirl with a knife if you want. Top with remaining batter, adding the rest of the fruit on top of the batter, sprinkling with remaining cinnamon-sugar and swirl with a knife if desired.
Bake for about 45 to 50 minutes for the 9-inch pan and 50-65 minutes for the 8-inch pan or until top is golden brown and a toothpick inserted near the center comes out clean. Note that different sized pans may take more/less time to bake; you can start checking after 30 to 35 minutes or so, once the top of the cake is no longer obviously jiggly.
Place pan on a wire rack to cool. Run a knife around the edge to release, then remove from pan and cool completely.
If you want a glaze on top, mix the powdered sugar and milk together and drizzle on top and serve.