@@ -75,7 +75,7 @@ static inline void spear_pwm_writel(struct spear_pwm_chip *chip,
}
static int spear_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
- int duty_ns, int period_ns)
+ u64 duty_ns, u64 period_ns)
{
struct spear_pwm_chip *pc = to_spear_pwm_chip(chip);
u64 val, div, clk_rate;
@@ -163,10 +163,35 @@ static void spear_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
clk_disable(pc->clk);
}
+static int spear_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
+ const struct pwm_state *state)
+{
+ int err;
+
+ if (state->polarity != PWM_POLARITY_NORMAL)
+ return -EINVAL;
+
+ if (!state->enabled) {
+ if (pwm->state.enabled)
+ spear_pwm_disable(chip, pwm);
+ return 0;
+ }
+
+ if (state->period != pwm->state.period ||
+ state->duty_cycle != pwm->state.duty_cycle) {
+ err = spear_pwm_config(chip, pwm, state->duty_cycle, state->period);
+ if (err)
+ return err;
+ }
+
+ if (!pwm->state.enabled)
+ return spear_pwm_enable(chip, pwm);
+
+ return 0;
+}
+
static const struct pwm_ops spear_pwm_ops = {
- .config = spear_pwm_config,
- .enable = spear_pwm_enable,
- .disable = spear_pwm_disable,
+ .apply = spear_pwm_apply,
.owner = THIS_MODULE,
};
Just using the previous callbacks to implment a similar procedure as the legacy handling in the core. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-spear.c | 33 +++++++++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-)