[v11,15/27] pwm: jz4740: Allow selection of PWM channels 0 and 1
diff mbox series

Message ID 20190327231631.15708-16-paul@crapouillou.net
State Not Applicable
Headers show
Series
  • Ingenic JZ47xx TCU pachset v11
Related show

Commit Message

Paul Cercueil March 27, 2019, 11:16 p.m. UTC
The TCU channels 0 and 1 were previously reserved for system tasks, and
thus unavailable for PWM.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
---
 drivers/pwm/pwm-jz4740.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

Patch
diff mbox series

diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index b55ee879e23d..c874a387c1d9 100644
--- a/drivers/pwm/pwm-jz4740.c
+++ b/drivers/pwm/pwm-jz4740.c
@@ -42,11 +42,7 @@  static int jz4740_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
 	char clk_name[16];
 	int ret;
 
-	/*
-	 * Timers 0 and 1 are used for system tasks, so they are unavailable
-	 * for use as PWMs.
-	 */
-	if (pwm->hwpwm < 2)
+	if (!ingenic_tcu_pwm_can_use_chn(chip->dev, pwm->hwpwm))
 		return -EBUSY;
 
 	snprintf(clk_name, sizeof(clk_name), "timer%u", pwm->hwpwm);