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Subject[PATCH v2 2/2] clocksource: sh_mtu2: Add clk_prepare/unprepare support
Date
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.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
drivers/clocksource/sh_mtu2.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index e6cfb32..3cf1283 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -313,13 +313,18 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
goto err1;
}

+ ret = clk_prepare(p->clk);
+ if (ret < 0)
+ goto err2;
+
ret = sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
cfg->clockevent_rating);
if (ret < 0)
- goto err2;
+ goto err3;

return 0;
-
+ err3:
+ clk_unprepare(p->clk);
err2:
clk_put(p->clk);
err1:
--
1.8.1.5


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