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| author | Thomas Abraham <thomas.abraham@linaro.org> | 2013-03-09 17:10:37 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2013-03-25 18:17:14 +0900 |
| commit | ca9048ec31ab5e50c79bf18eccb79396c1f24b22 (patch) | |
| tree | 8885fe08bd68e61ae3bfaabe52c6a3149df62830 /drivers | |
| parent | 415ac2e240f7f3e1b609f34ba7aa1c340589fdb1 (diff) | |
| download | linux-stable-ca9048ec31ab5e50c79bf18eccb79396c1f24b22.tar.gz linux-stable-ca9048ec31ab5e50c79bf18eccb79396c1f24b22.tar.bz2 linux-stable-ca9048ec31ab5e50c79bf18eccb79396c1f24b22.zip | |
clocksource: mct: add support for mct clock setup
Add support for mct clock lookup and setup to ensure that the mct
clock is has been turned on.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/clocksource/exynos_mct.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index f817c5401269..203ac05e2b3d 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -479,7 +479,7 @@ static struct local_timer_ops exynos4_mct_tick_ops __cpuinitdata = { static void __init exynos4_timer_resources(struct device_node *np) { - struct clk *tick_clk; + struct clk *mct_clk, *tick_clk; tick_clk = np ? of_clk_get_by_name(np, "fin_pll") : clk_get(NULL, "fin_pll"); @@ -487,6 +487,11 @@ static void __init exynos4_timer_resources(struct device_node *np) panic("%s: unable to determine tick clock rate\n", __func__); clk_rate = clk_get_rate(tick_clk); + mct_clk = np ? of_clk_get_by_name(np, "mct") : clk_get(NULL, "mct"); + if (IS_ERR(mct_clk)) + panic("%s: unable to retrieve mct clock instance\n", __func__); + clk_prepare_enable(mct_clk); + reg_base = np ? of_iomap(np, 0) : S5P_VA_SYSTIMER; if (!reg_base) panic("%s: unable to ioremap mct address space\n", __func__); |