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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2022-12-02 19:35:30 +0100 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2022-12-06 12:46:25 +0100 |
| commit | 9c9d5e9957ac443cc544d63688e2442c230430ea (patch) | |
| tree | a812a7b9a7ba71b9c8aa4ef16ada07265fcdb682 | |
| parent | fea768cf68c04d68ea2a8091c559667378f3b77c (diff) | |
| download | linux-9c9d5e9957ac443cc544d63688e2442c230430ea.tar.bz2 | |
pwm: crc: Propagate errors in .get_state() to the caller
.get_state() can return an error indication. Make use of it to propagate
failing hardware accesses.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
| -rw-r--r-- | drivers/pwm/pwm-crc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-crc.c b/drivers/pwm/pwm-crc.c index 4099850117ba..4703b4a0b6e4 100644 --- a/drivers/pwm/pwm-crc.c +++ b/drivers/pwm/pwm-crc.c @@ -132,13 +132,13 @@ static int crc_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, error = regmap_read(crc_pwm->regmap, PWM0_CLK_DIV, &clk_div_reg); if (error) { dev_err(dev, "Error reading PWM0_CLK_DIV %d\n", error); - return 0; + return error; } error = regmap_read(crc_pwm->regmap, PWM0_DUTY_CYCLE, &duty_cycle_reg); if (error) { dev_err(dev, "Error reading PWM0_DUTY_CYCLE %d\n", error); - return 0; + return error; } clk_div = (clk_div_reg & ~PWM_OUTPUT_ENABLE) + 1; |