From: Boris BREZILLON Date: Wed, 18 Sep 2013 15:06:21 +0000 (+0200) Subject: pwm: atmel-tcb: fix max time computation for slow clk source X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ceb12f939809b3445d0b2118d4b07638bb07afa6;p=linux-beck.git pwm: atmel-tcb: fix max time computation for slow clk source Use the the tcb counter width to compute the maximum time that can be represented using the slow clock source instead of the static 16 bit width. Signed-off-by: Boris BREZILLON Acked-by: Nicolas Ferre Signed-off-by: Thierry Reding --- diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c index 026696970d77..f3dcd02390f1 100644 --- a/drivers/pwm/pwm-atmel-tcb.c +++ b/drivers/pwm/pwm-atmel-tcb.c @@ -307,7 +307,7 @@ static int atmel_tcb_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, i = slowclk; rate = 32768; min = div_u64(NSEC_PER_SEC, rate); - max = min << 16; + max = min << tc->tcb_config->counter_width; /* If period is too big return ERANGE error */ if (max < period_ns)