On Wed, Jan 16, 2013 at 09:52:53PM +0100, Stephen Warren wrote:
> From: Prashant Gaikwad <[email protected]>
>
> Add Tegra specific clocks, pll, pll_out, peripheral, frac_divider, super.
>
> Signed-off-by: Prashant Gaikwad <[email protected]>
> [swarren: alloc sizeof(*foo) not sizeof(struct foo), add comments re:
> storing pointers to stack variables, make a timeout loop more idiomatic,
> use _clk_pll_disable() not clk_disable_pll() from _program_pll() to
> avoid redundant lock operations, unified tegra_clk_periph() and
> tegra_clk_periph_nodiv(), unified tegra_clk_pll{,e}, rename all clock
> registration functions so they don't have the same name as the clock
> structs.]
> Signed-off-by: Stephen Warren <[email protected]>
...
> +static int clk_plle_enable(struct clk_hw *hw)
> +{
> + struct tegra_clk_pll *pll = to_clk_pll(hw);
> + unsigned long input_rate = clk_get_rate(clk_get_parent(hw->clk));
> + struct tegra_clk_pll_freq_table sel;
> + u32 val;
> + int err;
> +
> + if (_get_table_rate(hw, &sel, pll->fixed_rate, input_rate))
> + return -EBUSY;
> +
I think -EINVAL would be more appropriate here?
Cheers,
Peter.
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