diff options
Diffstat (limited to 'drivers/misc/atmel-ssc.c')
| -rw-r--r-- | drivers/misc/atmel-ssc.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c index 1abd5ad5992..e068a76a5f6 100644 --- a/drivers/misc/atmel-ssc.c +++ b/drivers/misc/atmel-ssc.c @@ -58,7 +58,7 @@ struct ssc_device *ssc_request(unsigned int ssc_num) ssc->user++; spin_unlock(&user_lock); - clk_enable(ssc->clk); + clk_prepare_enable(ssc->clk); return ssc; } @@ -66,14 +66,19 @@ EXPORT_SYMBOL(ssc_request); void ssc_free(struct ssc_device *ssc) { + bool disable_clk = true; + spin_lock(&user_lock); - if (ssc->user) { + if (ssc->user) ssc->user--; - clk_disable(ssc->clk); - } else { + else { + disable_clk = false; dev_dbg(&ssc->pdev->dev, "device already free\n"); } spin_unlock(&user_lock); + + if (disable_clk) + clk_disable_unprepare(ssc->clk); } EXPORT_SYMBOL(ssc_free); @@ -167,10 +172,10 @@ static int ssc_probe(struct platform_device *pdev) } /* disable all interrupts */ - clk_enable(ssc->clk); + clk_prepare_enable(ssc->clk); ssc_writel(ssc->regs, IDR, -1); ssc_readl(ssc->regs, SR); - clk_disable(ssc->clk); + clk_disable_unprepare(ssc->clk); ssc->irq = platform_get_irq(pdev, 0); if (!ssc->irq) { |