Re: [PATCH 15/21] backlight: Probe backlight devices on demand

Lee Jones
2015-05-26T07:18:57Z

On Mon, 25 May 2015, Tomeu Vizoso wrote:

> When looking up a backlight device through its DT node, ensure that the
> corresponding device has been registered.
>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
> ---
> drivers/video/backlight/backlight.c | 3 +++
> 1 file changed, 3 insertions(+)

Looks reasonable.

Until anyone screams at me, applied thanks.

> diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
> index bddc8b1..fe7833b 100644
> --- a/drivers/video/backlight/backlight.c
> +++ b/drivers/video/backlight/backlight.c
> @@ -12,6 +12,7 @@
> #include <linux/device.h>
> #include <linux/backlight.h>
> #include <linux/notifier.h>
> +#include <linux/of_platform.h>
> #include <linux/ctype.h>
> #include <linux/err.h>
> #include <linux/fb.h>
> @@ -559,6 +560,8 @@ struct backlight_device *of_find_backlight_by_node(struct device_node *node)
> {
> struct device *dev;
>
> + of_platform_device_ensure(node);
> +
> dev = class_find_device(backlight_class, NULL, node, of_parent_match);
>
> return dev ? to_backlight_device(dev) : NULL;

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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