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SubjectRe: [PATCH 03/12] clocksource: sh_tmu: Add clk_prepare/unprepare support
On 29-10-2013 2:49, Laurent Pinchart wrote:

> 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_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);

This one seems to be a fix, and should be done separately.

WBR, Sergei



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