Messages in this thread | | | Date | Tue, 24 Sep 2013 11:20:04 +0300 | From | Peter De Schrijver <> | Subject | Re: [PATCH 08/12] clk: tegra: move periph clocks to common file |
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On Mon, Sep 23, 2013 at 08:31:43PM +0200, Stephen Warren wrote: > On 09/18/2013 08:41 AM, Peter De Schrijver wrote: > > Introduce a new file for peripheral clocks common between several Tegra > > SoCs and move Tegra114 to this new infrastructure. Also PLLP and the PLLP_OUT > > clocks will be initialized here. > > > diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c > > Similarly here: don't the following differences exist between the SoCs: > > * At least the set of extant peripheral clocks, and perhaps some > parameters of those clocks. >
That's what the tegra_clks is for. If the clock isn't in that table, it won't be registered.
> * The set of legal parents for some peripheral clocks (?) >
If they differ for Tegra20 and Tegra30, we will need some extra clocks here, which will have a new ID and then only be defined in the tegra_clks for those SoCs. Alternatively they can stay in the SoC specific files.
> * pll_p frequency table, params, nmp bit positions in registers (?) >
Same here.
> I'd really like to see this series completed so it's obvious exactly > what data/code really is common, and hence whether it makes sense to > move everything into a single cross-SoC clk-tegra-periph.c, or whether > some parts should be kept in the per-SoC files.
There's always the option of keeping things in per-SoC files, even with this infra. Every SoC can decide which of these 'common clocks' it wants to have registered.
Cheers,
Peter.
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