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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-21 20:41:28 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-21 20:41:28 +0300 |
| commit | 7a693ea78e3c48605a2d849fd241ff15561f10d5 (patch) | |
| tree | f1d3b8939d2abc40d3bb160d2dcaaf696d8de2d6 /drivers/leds | |
| parent | 9cf5b508bd260d5693d337bcf1f9b82b961b6137 (diff) | |
| parent | 8fa22f4b88e877c0811d2a0e506cf56755add554 (diff) | |
| download | linux-7a693ea78e3c48605a2d849fd241ff15561f10d5.tar.xz | |
Merge tag 'pwm/for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"Various changes across the board, mostly improvements and cleanups"
* tag 'pwm/for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (42 commits)
pwm: pca9685: Convert to i2c's .probe_new()
pwm: sun4i: Propagate errors in .get_state() to the caller
pwm: Handle .get_state() failures
pwm: sprd: Propagate errors in .get_state() to the caller
pwm: rockchip: Propagate errors in .get_state() to the caller
pwm: mtk-disp: Propagate errors in .get_state() to the caller
pwm: imx27: Propagate errors in .get_state() to the caller
pwm: cros-ec: Propagate errors in .get_state() to the caller
pwm: crc: Propagate errors in .get_state() to the caller
leds: qcom-lpg: Propagate errors in .get_state() to the caller
drm/bridge: ti-sn65dsi86: Propagate errors in .get_state() to the caller
pwm/tracing: Also record trace events for failed API calls
pwm: Make .get_state() callback return an error code
pwm: pxa: Enable for MMP platform
pwm: pxa: Add reference manual link and limitations
pwm: pxa: Use abrupt shutdown mode
pwm: pxa: Remove clk enable/disable from pxa_pwm_config
pwm: pxa: Set duty cycle to 0 when disabling PWM
pwm: pxa: Remove pxa_pwm_enable/disable
pwm: mediatek: Add support for MT7986
...
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/rgb/leds-qcom-lpg.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/leds/rgb/leds-qcom-lpg.c b/drivers/leds/rgb/leds-qcom-lpg.c index c1a56259226f..67f48f222109 100644 --- a/drivers/leds/rgb/leds-qcom-lpg.c +++ b/drivers/leds/rgb/leds-qcom-lpg.c @@ -972,8 +972,8 @@ out_unlock: return ret; } -static void lpg_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, - struct pwm_state *state) +static int lpg_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, + struct pwm_state *state) { struct lpg *lpg = container_of(chip, struct lpg, pwm); struct lpg_channel *chan = &lpg->channels[pwm->hwpwm]; @@ -986,20 +986,20 @@ static void lpg_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, ret = regmap_read(lpg->map, chan->base + LPG_SIZE_CLK_REG, &val); if (ret) - return; + return ret; refclk = lpg_clk_rates[val & PWM_CLK_SELECT_MASK]; if (refclk) { ret = regmap_read(lpg->map, chan->base + LPG_PREDIV_CLK_REG, &val); if (ret) - return; + return ret; pre_div = lpg_pre_divs[FIELD_GET(PWM_FREQ_PRE_DIV_MASK, val)]; m = FIELD_GET(PWM_FREQ_EXP_MASK, val); ret = regmap_bulk_read(lpg->map, chan->base + PWM_VALUE_REG, &pwm_value, sizeof(pwm_value)); if (ret) - return; + return ret; state->period = DIV_ROUND_UP_ULL((u64)NSEC_PER_SEC * LPG_RESOLUTION * pre_div * (1 << m), refclk); state->duty_cycle = DIV_ROUND_UP_ULL((u64)NSEC_PER_SEC * pwm_value * pre_div * (1 << m), refclk); @@ -1010,13 +1010,15 @@ static void lpg_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, ret = regmap_read(lpg->map, chan->base + PWM_ENABLE_CONTROL_REG, &val); if (ret) - return; + return ret; state->enabled = FIELD_GET(LPG_ENABLE_CONTROL_OUTPUT, val); state->polarity = PWM_POLARITY_NORMAL; if (state->duty_cycle > state->period) state->duty_cycle = state->period; + + return 0; } static const struct pwm_ops lpg_pwm_ops = { |