diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-22 21:50:21 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-22 21:50:21 (GMT) |
| commit | 451fd72219dd6f3355e2d036c598544c760ee532 (patch) | |
| tree | 2d25ff688cdca00341e8e207c06ba9df3d4b8764 /drivers | |
| parent | 47e4df94d129cbca84de252ff63c4ded08a513e7 (diff) | |
| parent | d717ea73e36dd5659640fae82605ad85c4117f4d (diff) | |
| download | linux-451fd72219dd6f3355e2d036c598544c760ee532.tar.xz | |
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
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pwm/core.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 4b66bf0..d2c3592 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; |