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authorArnaldo Carvalho de Melo <acme@redhat.com>2025-04-16 10:17:04 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2025-04-16 10:17:04 -0300
commit3a320eada570c44cffb15d971479a29b2e9ee270 (patch)
tree42a02676191e08d9419eb63f51d3b6c3050fb7a1 /drivers/pwm/core.c
parent1741189d843a1d5ef38538bc52a3760e2e46cb2e (diff)
parent1a1d569a75f3ab2923cb62daf356d102e4df2b86 (diff)
Merge remote-tracking branch 'torvalds/master' into perf-tools-next
Sync with upstream to pick up the perf-tools patches that updates the header files copies to address the check_header.sh warnings. There are also some libbpf updates, better pick those to be on the same page with libbpf since perf uses it in various places. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/pwm/core.c')
-rw-r--r--drivers/pwm/core.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index a40c511e0096..0387bd838487 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -322,7 +322,7 @@ static int __pwm_set_waveform(struct pwm_device *pwm,
const struct pwm_ops *ops = chip->ops;
char wfhw[WFHWSIZE];
struct pwm_waveform wf_rounded;
- int err;
+ int err, ret_tohw;
BUG_ON(WFHWSIZE < ops->sizeof_wfhw);
@@ -332,16 +332,16 @@ static int __pwm_set_waveform(struct pwm_device *pwm,
if (!pwm_wf_valid(wf))
return -EINVAL;
- err = __pwm_round_waveform_tohw(chip, pwm, wf, &wfhw);
- if (err)
- return err;
+ ret_tohw = __pwm_round_waveform_tohw(chip, pwm, wf, &wfhw);
+ if (ret_tohw < 0)
+ return ret_tohw;
if ((IS_ENABLED(CONFIG_PWM_DEBUG) || exact) && wf->period_length_ns) {
err = __pwm_round_waveform_fromhw(chip, pwm, &wfhw, &wf_rounded);
if (err)
return err;
- if (IS_ENABLED(CONFIG_PWM_DEBUG) && !pwm_check_rounding(wf, &wf_rounded))
+ if (IS_ENABLED(CONFIG_PWM_DEBUG) && ret_tohw == 0 && !pwm_check_rounding(wf, &wf_rounded))
dev_err(&chip->dev, "Wrong rounding: requested %llu/%llu [+%llu], result %llu/%llu [+%llu]\n",
wf->duty_length_ns, wf->period_length_ns, wf->duty_offset_ns,
wf_rounded.duty_length_ns, wf_rounded.period_length_ns, wf_rounded.duty_offset_ns);
@@ -382,7 +382,8 @@ static int __pwm_set_waveform(struct pwm_device *pwm,
wf_rounded.duty_length_ns, wf_rounded.period_length_ns, wf_rounded.duty_offset_ns,
wf_set.duty_length_ns, wf_set.period_length_ns, wf_set.duty_offset_ns);
}
- return 0;
+
+ return ret_tohw;
}
/**