diff options
| author | Greg Kroah-Hartman <[email protected]> | 2025-04-28 08:32:58 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2025-04-28 08:32:58 +0000 |
| commit | 615dca38c2eae55aff80050275931c87a812b48c (patch) | |
| tree | 8674a3a3f66a39bf7c7f2ab733a757e624bd99ec /drivers/pwm/pwm-axi-pwmgen.c | |
| parent | usb: gadget: u_serial: Implement remote wakeup capability (diff) | |
| parent | Linux 6.15-rc4 (diff) | |
| download | kernel-615dca38c2eae55aff80050275931c87a812b48c.tar.gz kernel-615dca38c2eae55aff80050275931c87a812b48c.zip | |
Merge 6.15-rc4 into usb-next
We need the USB fixes in here as well, and this resolves the following
merge conflicts that were reported in linux-next:
drivers/usb/chipidea/ci_hdrc_imx.c
drivers/usb/host/xhci.h
Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/pwm/pwm-axi-pwmgen.c')
| -rw-r--r-- | drivers/pwm/pwm-axi-pwmgen.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/pwm/pwm-axi-pwmgen.c b/drivers/pwm/pwm-axi-pwmgen.c index 4259a0db9ff4..4337c8f5acf0 100644 --- a/drivers/pwm/pwm-axi-pwmgen.c +++ b/drivers/pwm/pwm-axi-pwmgen.c @@ -75,6 +75,7 @@ static int axi_pwmgen_round_waveform_tohw(struct pwm_chip *chip, { struct axi_pwmgen_waveform *wfhw = _wfhw; struct axi_pwmgen_ddata *ddata = axi_pwmgen_ddata_from_chip(chip); + int ret = 0; if (wf->period_length_ns == 0) { *wfhw = (struct axi_pwmgen_waveform){ @@ -91,12 +92,15 @@ static int axi_pwmgen_round_waveform_tohw(struct pwm_chip *chip, if (wfhw->period_cnt == 0) { /* * The specified period is too short for the hardware. - * Let's round .duty_cycle down to 0 to get a (somewhat) - * valid result. + * So round up .period_cnt to 1 (i.e. the smallest + * possible period). With .duty_cycle and .duty_offset + * being less than or equal to .period, their rounded + * value must be 0. */ wfhw->period_cnt = 1; wfhw->duty_cycle_cnt = 0; wfhw->duty_offset_cnt = 0; + ret = 1; } else { wfhw->duty_cycle_cnt = min_t(u64, mul_u64_u32_div(wf->duty_length_ns, ddata->clk_rate_hz, NSEC_PER_SEC), @@ -111,7 +115,7 @@ static int axi_pwmgen_round_waveform_tohw(struct pwm_chip *chip, pwm->hwpwm, wf->duty_length_ns, wf->period_length_ns, wf->duty_offset_ns, ddata->clk_rate_hz, wfhw->period_cnt, wfhw->duty_cycle_cnt, wfhw->duty_offset_cnt); - return 0; + return ret; } static int axi_pwmgen_round_waveform_fromhw(struct pwm_chip *chip, struct pwm_device *pwm, |