Prepare the clock at probe time, as there is no other appropriate place
in the driver where we're allowed to sleep.

Cc: Daniel Lezcano <daniel.lezc...@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
---
 drivers/clocksource/sh_tmu.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 78b8dae..63557cd 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -472,12 +472,26 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct 
platform_device *pdev)
                ret = PTR_ERR(p->clk);
                goto err1;
        }
+
+       ret = clk_prepare(p->clk);
+       if (ret < 0)
+               goto err2;
+
        p->cs_enabled = false;
        p->enable_count = 0;
 
-       return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
-                              cfg->clockevent_rating,
-                              cfg->clocksource_rating);
+       ret = sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
+                             cfg->clockevent_rating,
+                             cfg->clocksource_rating);
+       if (ret < 0)
+               goto err3;
+
+       return 0;
+
+ err3:
+       clk_unprepare(p->clk);
+ err2:
+       clk_put(p->clk);
  err1:
        iounmap(p->mapbase);
  err0:
-- 
1.8.1.5

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