[PATCH v5 11/12] ARM: Exynos: use fin_pll clock as the tick clock source for mct
From: Thomas Abraham <hidden>
Date: 2012-12-30 00:33:40
Also in:
linux-devicetree, linux-samsung-soc
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
With the migration of Exynos4 clocks to use common clock framework, the old styled 'xtal' clock is not used anymore. Instead, the clock 'fin_pll' is used as the tick clock for mct controller. Cc: Kukjin Kim <redacted> Signed-off-by: Thomas Abraham <redacted> --- arch/arm/mach-exynos/mct.c | 14 +++++++++++++- 1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c
index 448ce86..71e1502 100644
--- a/arch/arm/mach-exynos/mct.c
+++ b/arch/arm/mach-exynos/mct.c@@ -487,10 +487,22 @@ static struct local_timer_ops exynos4_mct_tick_ops __cpuinitdata = { static void __init exynos4_timer_resources(struct device_node *np) { +#ifdef CONFIG_COMMON_CLK + struct clk *tick_clk; + + tick_clk = clk_get(NULL, "fin_pll"); + if (IS_ERR(tick_clk)) + panic("%s: unable to determine tick clock rate\n", __func__); + clk_rate = clk_get_rate(tick_clk); +#else + /* + * todo: remove this legacy code after adding common clock support for + * exynos5250. + */ struct clk *mct_clk; mct_clk = clk_get(NULL, "xtal"); - clk_rate = clk_get_rate(mct_clk); +#endif reg_base = np ? of_iomap(np, 0) : S5P_VA_SYSTIMER; if (!reg_base)
--
1.7.5.4