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| author | Alban Bedel <alban.bedel@avionic-design.de> | 2012-11-14 12:58:14 +0100 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@avionic-design.de> | 2012-12-06 08:52:11 +0100 |
| commit | 54b2a999a167510aa6eb54f49ef21a40946c88ba (patch) | |
| tree | c59e98ae4587f541e8e63ee6144ba0e4f5b70214 /drivers/pwm/pwm-lpc32xx.c | |
| parent | a9a18e0691228707230df660dd56364aebf6ea47 (diff) | |
| download | linux-stable-54b2a999a167510aa6eb54f49ef21a40946c88ba.tar.gz linux-stable-54b2a999a167510aa6eb54f49ef21a40946c88ba.tar.bz2 linux-stable-54b2a999a167510aa6eb54f49ef21a40946c88ba.zip | |
pwm: lpc32xx: Properly disable the clock on device removal
A single clock is used for all PWMs meaning the clock's reference count
might be between 0 and N when .remove() is called. Instead of a single
clk_disable() call pwm_disable() on each PWM, to ensure that
clk_disable() is called for each PWM that is still enabled.
Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'drivers/pwm/pwm-lpc32xx.c')
| -rw-r--r-- | drivers/pwm/pwm-lpc32xx.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c index c9b2eb5932b1..971874b0707a 100644 --- a/drivers/pwm/pwm-lpc32xx.c +++ b/drivers/pwm/pwm-lpc32xx.c @@ -136,8 +136,11 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev) static int __devexit lpc32xx_pwm_remove(struct platform_device *pdev) { struct lpc32xx_pwm_chip *lpc32xx = platform_get_drvdata(pdev); + unsigned int i; + + for (i = 0; i < lpc32xx->chip.npwm; i++) + pwm_disable(&lpc32xx->chip.pwms[i]); - clk_disable(lpc32xx->clk); return pwmchip_remove(&lpc32xx->chip); } |