pwm: sifive: Shut down hardware only after pwmchip_remove() completed

The PWMs are expected to be functional until pwmchip_remove() is called.
So disable the clks only afterwards.

Fixes: 9e37a53e ("pwm: sifive: Add a driver for SiFive SoC PWM")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-sifive.c

@@ -308,6 +308,9 @@ static int pwm_sifive_remove(struct platform_device *dev)
 	struct pwm_device *pwm;
 	int ch;
 
+	pwmchip_remove(&ddata->chip);
+	clk_notifier_unregister(ddata->clk, &ddata->notifier);
+
 	for (ch = 0; ch < ddata->chip.npwm; ch++) {
 		pwm = &ddata->chip.pwms[ch];
 		if (pwm->state.enabled)
@@ -315,8 +318,6 @@ static int pwm_sifive_remove(struct platform_device *dev)
 	}
 
 	clk_unprepare(ddata->clk);
-	pwmchip_remove(&ddata->chip);
-	clk_notifier_unregister(ddata->clk, &ddata->notifier);
 
 	return 0;
 }