[PATCH 14/21] pwm: Probe PWM chip devices on demand
From: Tomeu Vizoso <hidden>
Date: 2015-05-25 15:01:57
Also in:
linux-pwm, lkml
Subsystem:
pwm subsystem, the rest · Maintainers:
Uwe Kleine-König, Linus Torvalds
When looking up a PWM chip through its DT node, ensure that the corresponding device has been registered. Signed-off-by: Tomeu Vizoso <redacted> --- drivers/pwm/core.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index ba34c7d..31f486c 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c@@ -24,6 +24,7 @@ #include <linux/radix-tree.h> #include <linux/list.h> #include <linux/mutex.h> +#include <linux/of_platform.h> #include <linux/err.h> #include <linux/slab.h> #include <linux/device.h>
@@ -479,6 +480,8 @@ static struct pwm_chip *of_node_to_pwmchip(struct device_node *np) { struct pwm_chip *chip; + of_platform_device_ensure(np); + mutex_lock(&pwm_lock); list_for_each_entry(chip, &pwm_chips, list)
--
2.4.1