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authorDaniel Lezcano <daniel.lezcano@linaro.org>2013-12-18 15:14:11 +0100
committerDaniel Lezcano <daniel.lezcano@linaro.org>2013-12-18 15:14:36 +0100
commit98aefbe72ec6015f90fe045ed16c5cf755da283d (patch)
tree35d12ac4d3ee7e3c12aa8825ecb490430d8e5030 /drivers/clocksource/sh_cmt.c
parent6d19944bd2609a1d7d48149605aa9f62ca8bf640 (diff)
parent57dee992df244ccce6a6a3a88a43160e285da5d8 (diff)
Merge branch 'clockevents/for-Simon-3.13-rc2' into clockevents/3.14
* clocksource: sh_cmt: Add clk_prepare/unprepare support Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/sh_cmt.c')
-rw-r--r--drivers/clocksource/sh_cmt.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index c6186339dd52..0b1836a6c539 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -634,12 +634,18 @@ static int sh_cmt_clock_event_next(unsigned long delta,
static void sh_cmt_clock_event_suspend(struct clock_event_device *ced)
{
- pm_genpd_syscore_poweroff(&ced_to_sh_cmt(ced)->pdev->dev);
+ struct sh_cmt_priv *p = ced_to_sh_cmt(ced);
+
+ pm_genpd_syscore_poweroff(&p->pdev->dev);
+ clk_unprepare(p->clk);
}
static void sh_cmt_clock_event_resume(struct clock_event_device *ced)
{
- pm_genpd_syscore_poweron(&ced_to_sh_cmt(ced)->pdev->dev);
+ struct sh_cmt_priv *p = ced_to_sh_cmt(ced);
+
+ clk_prepare(p->clk);
+ pm_genpd_syscore_poweron(&p->pdev->dev);
}
static void sh_cmt_register_clockevent(struct sh_cmt_priv *p,
@@ -736,6 +742,10 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
goto err2;
}
+ ret = clk_prepare(p->clk);
+ if (ret < 0)
+ goto err3;
+
if (res2 && (resource_size(res2) == 4)) {
/* assume both CMSTR and CMCSR to be 32-bit */
p->read_control = sh_cmt_read32;
@@ -772,19 +782,21 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
cfg->clocksource_rating);
if (ret) {
dev_err(&p->pdev->dev, "registration failed\n");
- goto err3;
+ goto err4;
}
p->cs_enabled = false;
ret = setup_irq(irq, &p->irqaction);
if (ret) {
dev_err(&p->pdev->dev, "failed to request irq %d\n", irq);
- goto err3;
+ goto err4;
}
platform_set_drvdata(pdev, p);
return 0;
+err4:
+ clk_unprepare(p->clk);
err3:
clk_put(p->clk);
err2: