[PATCH v4 03/26] clk: sunxi-ng: Add check for maximum rate to NKM PLLs

[Maxime Ripard]

On Tue, Nov 13, 2018 at 04:46:10PM +0530, Jagan Teki wrote:
> Some NKM PLLs, frequency can be set above PLL working range.
> 
> Add a constraint for maximum supported rate. This way, drivers can
> specify which is maximum allowed rate for PLL.
> 
> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
> Acked-by: Stephen Boyd <sboyd at kernel.org>

As Vasily reported on a previous version, this should be squashed with
the patch 2.

> ---
>  drivers/clk/sunxi-ng/ccu_nkm.c | 3 +++
>  drivers/clk/sunxi-ng/ccu_nkm.h | 1 +
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c
> index 6b5ad990f802..b8b66cdd30bf 100644
> --- a/drivers/clk/sunxi-ng/ccu_nkm.c
> +++ b/drivers/clk/sunxi-ng/ccu_nkm.c
> @@ -128,6 +128,9 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
>  	if (rate < nkm->min_rate)
>  		return nkm->min_rate;
>  
> +	if (nkm->max_rate && rate > nkm->max_rate)
> +		return nkm->max_rate;
> +

I would expect the test to be the same for the minimum and maximum cases.

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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