linux-kernel - Re: [PATCH v5 04/10] clk: tegra: Add new fields and PLL types for Tegra114

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Date:	Fri, 1 Feb 2013 14:40:30 -0500
From:	Rhyland Klein <rklein@...dia.com>
To:	Peter De Schrijver <pdeschrijver@...dia.com>
CC:	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	Stephen Warren <swarren@...dotorg.org>,
	Russell King <linux@....linux.org.uk>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Simon Glass <sjg@...omium.org>,
	Mike Turquette <mturquette@...aro.org>,
	Joseph Lo <josephl@...dia.com>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5 04/10] clk: tegra: Add new fields and PLL types for
 Tegra114

On 2/1/2013 5:18 AM, Peter De Schrijver wrote:
> Tegra114 introduces new PLL types. This requires new clocktypes as well
> as some new fields in the pll structure.
>
> Signed-off-by: Peter De Schrijver <pdeschrijver@...dia.com>
> ---
>   drivers/clk/tegra/clk-pll.c |  719 +++++++++++++++++++++++++++++++++++++++++++
>   drivers/clk/tegra/clk.h     |   47 +++
>   2 files changed, 766 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
> index 87d2f34..50114b7 100644
> --- a/drivers/clk/tegra/clk-pll.c
> +++ b/drivers/clk/tegra/clk-pll.c
> [snip]
> +struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
> +                         void __iomem *clk_base, void __iomem *pmc,
> +                         unsigned long flags, unsigned long fixed_rate,
> +                         struct tegra_clk_pll_params *pll_params,
> +                         u32 pll_flags,
> +                         struct tegra_clk_pll_freq_table *freq_table,
> +                         spinlock_t *lock)
> +{
> +       if (!pll_params->pdiv_tohw)
> +               return -EINVAL;
> +
This will cause the following warning:
warning: return makes pointer from integer without a cast

Same with occurrences in tegra_clk_register_pllm and 
tegra_clk_register_pllc.

Should this instead be returning NULL?

-rhyland

-- 
nvpublic

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