tick_clk 504 drivers/clocksource/exynos_mct.c struct clk *mct_clk, *tick_clk; tick_clk 506 drivers/clocksource/exynos_mct.c tick_clk = of_clk_get_by_name(np, "fin_pll"); tick_clk 507 drivers/clocksource/exynos_mct.c if (IS_ERR(tick_clk)) tick_clk 509 drivers/clocksource/exynos_mct.c clk_rate = clk_get_rate(tick_clk);