pwm: sprd: Explicitly set .polarity in .get_state()

[ Upstream commit 2be4dcf6627e1bcbbef8e6ba1811f5127d39202c ]

The driver only supports normal polarity. Complete the implementation of
.get_state() by setting .polarity accordingly.

Fixes: 8aae4b02e8a6 ("pwm: sprd: Add Spreadtrum PWM support")
Link: https://lore.kernel.org/r/20230228135508.1798428-5-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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/pwm/pwm-sprd.c b/drivers/pwm/pwm-sprd.c
index d866ce345f97707e9bd5f8943d5d62723802dcb0..bde579a338c270323703e045976c9546a888b0fb 100644 (file)
--- a/drivers/pwm/pwm-sprd.c
+++ b/drivers/pwm/pwm-sprd.c
@@ -109,6 +109,7 @@ static int sprd_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
        duty = val & SPRD_PWM_DUTY_MSK;
        tmp = (prescale + 1) * NSEC_PER_SEC * duty;
        state->duty_cycle = DIV_ROUND_CLOSEST_ULL(tmp, chn->clk_rate);
+       state->polarity = PWM_POLARITY_NORMAL;
 
        /* Disable PWM clocks if the PWM channel is not in enable state. */
        if (!state->enabled)