approximation 102 drivers/clk/clk-fractional-divider.c if (fd->approximation) approximation 103 drivers/clk/clk-fractional-divider.c fd->approximation(hw, rate, parent_rate, &m, &n); approximation 255 drivers/clk/rockchip/clk.c div->approximation = rockchip_fractional_approximation; approximation 651 include/linux/clk-provider.h void (*approximation)(struct clk_hw *hw,