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Date: Wed, 7 Nov 2012 16:25:55 +0100 From: Alban Bedel <alban.bedel@...onic-design.de> To: Thierry Reding <thierry.reding@...onic-design.de> Cc: LKML <linux-kernel@...r.kernel.org>, Roland Stigge <stigge@...com.de>, Alexandre Pereira da Silva <aletes.xgr@...il.com>, Alban Bedel <alban.bedel@...onic-design.de> Subject: [PATCH] pwm: lpc32xx - Fix the PWM polarity Signed-off-by: Alban Bedel <alban.bedel@...onic-design.de> --- drivers/pwm/pwm-lpc32xx.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c index adb87f0..0dc278d 100644 --- a/drivers/pwm/pwm-lpc32xx.c +++ b/drivers/pwm/pwm-lpc32xx.c @@ -51,7 +51,11 @@ static int lpc32xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, c = 256 * duty_ns; do_div(c, period_ns); - duty_cycles = c; + if (c == 0) + c = 256; + if (c > 255) + c = 255; + duty_cycles = 256 - c; writel(PWM_ENABLE | PWM_RELOADV(period_cycles) | PWM_DUTY(duty_cycles), lpc32xx->base + (pwm->hwpwm << 2)); -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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