| From | Tomeu Vizoso <> | Subject | [PATCH 14/21] pwm: Probe PWM chip devices on demand | Date | Mon, 25 May 2015 16:53:18 +0200 |
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When looking up a PWM chip through its DT node, ensure that the corresponding device has been registered.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> --- 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
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