[PATCH v4 2/3] powerpc/powernv: Create LED platform device

[Benjamin Herrenschmidt]

On Tue, 2015-04-28 at 15:40 +0530, Vasant Hegde wrote:
> This patch adds paltform devices for leds. Also export LED related
> OPAL API's so that led driver can use these APIs.
> 
> Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>

Acked-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>


> ---
>  arch/powerpc/platforms/powernv/opal.c |   12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
> index 2241565..b1951aa 100644
> --- a/arch/powerpc/platforms/powernv/opal.c
> +++ b/arch/powerpc/platforms/powernv/opal.c
> @@ -784,7 +784,7 @@ static void opal_init_heartbeat(void)
>  
>  static int __init opal_init(void)
>  {
> -	struct device_node *np, *consoles;
> +	struct device_node *np, *consoles, *led;
>  	int rc;
>  
>  	opal_node = of_find_node_by_path("/ibm,opal");
> @@ -813,6 +813,13 @@ static int __init opal_init(void)
>  	/* Setup a heatbeat thread if requested by OPAL */
>  	opal_init_heartbeat();
>  
> +	/* Create led platform devices */
> +	led = of_find_node_by_path("/ibm,opal/led");
> +	if (led) {
> +		of_platform_device_create(led, "opal_led", NULL);
> +		of_node_put(led);
> +	}
> +
>  	/* Find all OPAL interrupts and request them */
>  	opal_irq_init(opal_node);
>  
> @@ -970,3 +977,6 @@ EXPORT_SYMBOL_GPL(opal_rtc_write);
>  EXPORT_SYMBOL_GPL(opal_tpo_read);
>  EXPORT_SYMBOL_GPL(opal_tpo_write);
>  EXPORT_SYMBOL_GPL(opal_i2c_request);
> +/* Export these symbols for PowerNV LED class driver */
> +EXPORT_SYMBOL_GPL(opal_leds_get_ind);
> +EXPORT_SYMBOL_GPL(opal_leds_set_ind);