Hi Dinh,

On Wed, Jun 10, 2015 at 04:49:24PM -0500, dinguyen@opensource.altera.com wrote:
> From: Dinh Nguyen <dinguyen@opensource.altera.com>
> 
> Use of_clk_parent_fill to fill in the parent clock names' array.
> 
> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
> Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
> Cc: "Emilio López" <emilio@elopez.com.ar>
> ---
>  drivers/clk/sunxi/clk-a20-gmac.c    |  3 +--
>  drivers/clk/sunxi/clk-factors.c     |  4 +---
>  drivers/clk/sunxi/clk-sun6i-ar100.c |  3 +--
>  drivers/clk/sunxi/clk-sunxi.c       | 10 ++--------
>  4 files changed, 5 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/clk/sunxi/clk-a20-gmac.c b/drivers/clk/sunxi/clk-a20-gmac.c
> index 0dcf4f2..a432edd 100644
> --- a/drivers/clk/sunxi/clk-a20-gmac.c
> +++ b/drivers/clk/sunxi/clk-a20-gmac.c
> @@ -80,8 +80,7 @@ static void __init sun7i_a20_gmac_clk_setup(struct device_node *node)
>  		goto free_mux;
>  
>  	/* gmac clock requires exactly 2 parents */
> -	parents[0] = of_clk_get_parent_name(node, 0);
> -	parents[1] = of_clk_get_parent_name(node, 1);
> +	of_clk_parent_fill(node, parents, 2);
>  	if (!parents[0] || !parents[1])

Maybe this check can be changed to something like:

if (of_clk_parent_fill(node, parents, 2) != 2)
   goto free_gate;

Would that make sense?

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com