From bd7549308eed47b3750b3dab692034a553e75663 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 8 Nov 2013 11:07:59 +0100 Subject: [PATCH] clocksource: sh_mtu2: Add clk_prepare/unprepare support 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 Cc: linux-kernel@vger.kernel.org Signed-off-by: Laurent Pinchart Acked-by: Simon Horman Signed-off-by: Daniel Lezcano --- 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: -- 2.7.4