[PATCH v3 02/10] pwm: clps711x: populate PWM mode in of_xlate function
From: Claudiu Beznea <hidden>
Date: 2018-02-22 12:03:05
Also in:
dri-devel, intel-gfx, linux-arm-kernel, linux-clk, linux-devicetree, linux-hwmon, linux-input, linux-leds, linux-media, linux-pwm, linux-samsung-soc, lkml
Subsystem:
pwm subsystem, the rest · Maintainers:
Uwe Kleine-König, Linus Torvalds
Populate PWM mode in of_xlate function to avoid pwm_apply_state() failure. Signed-off-by: Claudiu Beznea <redacted> --- drivers/pwm/pwm-clps711x.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c
index 26ec24e457b1..2a4d31ab3af0 100644
--- a/drivers/pwm/pwm-clps711x.c
+++ b/drivers/pwm/pwm-clps711x.c@@ -109,10 +109,20 @@ static const struct pwm_ops clps711x_pwm_ops = { static struct pwm_device *clps711x_pwm_xlate(struct pwm_chip *chip, const struct of_phandle_args *args) { + struct pwm_device *pwm; + struct pwm_caps caps; + if (args->args[0] >= chip->npwm) return ERR_PTR(-EINVAL); - return pwm_request_from_chip(chip, args->args[0], NULL); + pwm = pwm_request_from_chip(chip, args->args[0], NULL); + if (IS_ERR(pwm)) + return pwm; + + pwm_get_caps(chip, pwm, &caps); + pwm->args.mode = BIT(ffs(caps.modes) - 1); + + return pwm; } static int clps711x_pwm_probe(struct platform_device *pdev)
--
2.7.4