summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorBoris BREZILLON <b.brezillon@overkiz.com>2013-09-18 17:06:21 +0200
committerThierry Reding <thierry.reding@gmail.com>2013-09-19 14:04:32 +0200
commitceb12f939809b3445d0b2118d4b07638bb07afa6 (patch)
treef21a7f36ae193f0ca7d02b88bf29de39c4b1edb7
parentf3a82170aef72bf57f03e5c154fc94fad54968b1 (diff)
downloadop-kernel-dev-ceb12f939809b3445d0b2118d4b07638bb07afa6.zip
op-kernel-dev-ceb12f939809b3445d0b2118d4b07638bb07afa6.tar.gz
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 <b.brezillon@overkiz.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
-rw-r--r--drivers/pwm/pwm-atmel-tcb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index 0266969..f3dcd02 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)
OpenPOWER on IntegriCloud