Re: [PATCH RFC 3/4] clk: samsung: Add driver to control CLKOUT line on Exynos SoCs

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Hi Rahul,

On 16.05.2014 12:39, Rahul Sharma wrote:
> [snip]
>> +       gate->lock = &clkout_lock;
>> +
>> +       mux->reg = reg + EXYNOS_PMU_DEBUG_REG;
>> +       mux->mask = EXYNOS_CLKOUT_MUX_MASK;
>> +       mux->shift = EXYNOS_CLKOUT_MUX_SHIFT;
>> +       mux->lock = &clkout_lock;
>> +
>> +       clk = clk_register_composite(NULL, "clkout", parent_names,
>> +                                       parent_count, &mux->hw,
>> +                                       &clk_mux_ops, NULL, NULL, &gate->hw,
>> +                                       &clk_gate_ops, 0);
>> +       if (IS_ERR(clk))
>> +               goto err_unmap;
>> +
> 
> Hi Tomasz,
> 
> Do we really need a composite clock here? How about registering
> a mux and a gate separately?

What's wrong with a composite clock? It simplifies the code as just a
single clock needs to be registered. I don't see any drawbacks compared
to registering two clocks separately.

Best regards,
Tomasz
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