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clocksource: sh_mtu2: Add clk_prepare/unprepare support

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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>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Laurent Pinchart 2013-11-08 11:07:59 +01:00 committed by Daniel Lezcano
parent a4a5fc3b64
commit bd7549308e
1 changed files with 8 additions and 3 deletions
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11
drivers/clocksource/sh_mtu2.c
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@ -313,13 +313,18 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
goto err1;
}
ret = sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
cfg->clockevent_rating);
ret = clk_prepare(p->clk);
if (ret < 0)
goto err2;
return 0;
ret = sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
cfg->clockevent_rating);
if (ret < 0)
goto err3;
return 0;
err3:
clk_unprepare(p->clk);
err2:
clk_put(p->clk);
err1: