Messages in this thread Patch in this message | | | From | Tomeu Vizoso <> | Subject | [PATCH v4 12/22] pwm: Probe PWM chip devices on demand | Date | Mon, 7 Sep 2015 14:23:37 +0200 |
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When looking up a PWM chip through its OF node, probe it if it hasn't already.
The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> ---
Changes in v4: None Changes in v3: None Changes in v2: None
drivers/pwm/core.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3f9df3ea3350..794a923df0d8 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -29,6 +29,7 @@ #include <linux/device.h> #include <linux/debugfs.h> #include <linux/seq_file.h> +#include <linux/of_device.h> #include <dt-bindings/pwm/pwm.h> @@ -516,6 +517,8 @@ static struct pwm_chip *of_node_to_pwmchip(struct device_node *np) { struct pwm_chip *chip; + of_device_probe(np); + mutex_lock(&pwm_lock); list_for_each_entry(chip, &pwm_chips, list) -- 2.4.3
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