In the last decade, many observers of Turkey underlined the division between secular and religious Turks as the main fault line in politics. Accordingly, the more secular, Westernized Turks were represented by the main opposition Republican People's Party (CHP), while Prime Minister Recep Tayyip Erdogan’s ruling Justice and Development Party (AKP) represented the more religious, conservative folks. Some bones of contention between the two sides, such as the longtime ban on the Islamic headscarf in state institutions, were also reflective of this “culture war.”
However, if you look at Turkey now, you can see that politics is not divided between pro-religion and pro-secularism lines anymore. It's divided between the pro-Erdogan and anti-Erdogan ones, with both religious and secular voices on each side.