[PATCH v11 15/27] pwm: jz4740: Allow selection of PWM channels 0 and 1
From: Paul Cercueil <paul@crapouillou.net>
Date: 2019-03-27 23:18:59
Also in:
linux-clk, linux-doc, linux-mips, linux-pwm, linux-watchdog, lkml
Subsystem:
ingenic jz47xx socs, pwm subsystem, the rest · Maintainers:
Paul Cercueil, Uwe Kleine-König, Linus Torvalds
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 <redacted> Tested-by: Artur Rojek <redacted> --- drivers/pwm/pwm-jz4740.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
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);
--
2.11.0