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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-22 14:50:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-22 14:50:21 -0700
commit451fd72219dd6f3355e2d036c598544c760ee532 (patch)
tree2d25ff688cdca00341e8e207c06ba9df3d4b8764
parent47e4df94d129cbca84de252ff63c4ded08a513e7 (diff)
parentd717ea73e36dd5659640fae82605ad85c4117f4d (diff)
downloadlinux-stericsson-451fd72219dd6f3355e2d036c598544c760ee532.tar.gz
Merge tag 'pwm/for-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm fix from Thierry Reding: "Just one bugfix for the PWM lookup table code that would cause a PWM channel to be set to the wrong period and polarity for non-perfect matches" * tag 'pwm/for-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: Fix period and polarity in pwm_get() for non-perfect matches
-rw-r--r--drivers/pwm/core.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 4b66bf09ee55..d2c35920ff08 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -606,6 +606,8 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
unsigned int best = 0;
struct pwm_lookup *p;
unsigned int match;
+ unsigned int period;
+ enum pwm_polarity polarity;
/* look up via DT first */
if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node)
@@ -653,6 +655,8 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
if (match > best) {
chip = pwmchip_find_by_name(p->provider);
index = p->index;
+ period = p->period;
+ polarity = p->polarity;
if (match != 3)
best = match;
@@ -668,8 +672,8 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
if (IS_ERR(pwm))
return pwm;
- pwm_set_period(pwm, p->period);
- pwm_set_polarity(pwm, p->polarity);
+ pwm_set_period(pwm, period);
+ pwm_set_polarity(pwm, polarity);
return pwm;