linux-kernel - Re: [PATCH 2/2] clk: socfpga: agilex: add clock driver for the Agilex platform

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Message-ID: <4726f580-fe88-5b20-e869-4e31bd63c6e3@kernel.org>
Date:   Tue, 3 Dec 2019 09:15:21 -0600
From:   Dinh Nguyen <dinguyen@...nel.org>
To:     Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org
Cc:     devicetree@...r.kernel.org, mturquette@...libre.com,
        robh+dt@...nel.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] clk: socfpga: agilex: add clock driver for the Agilex
 platform

Hi Stephen,

On 9/18/19 12:00 AM, Stephen Boyd wrote:
> Quoting Dinh Nguyen (2019-09-17 18:34:59)
>> diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
>> index 0cad76021297..ef2c96c0f1e0 100644
>> --- a/drivers/clk/Makefile
>> +++ b/drivers/clk/Makefile
>> @@ -18,6 +18,7 @@ endif
>>  

<snip>

>> +struct clk *agilex_register_pll(const char *name,
>> +                               const char * const *parent_names,
>> +                               u8 num_parents, unsigned long flags,
>> +                               void __iomem *reg, unsigned long offset)
>> +{
>> +       struct clk *clk;
>> +       struct socfpga_pll *pll_clk;
>> +       struct clk_init_data init;
>> +
>> +       pll_clk = kzalloc(sizeof(*pll_clk), GFP_KERNEL);
>> +       if (WARN_ON(!pll_clk))
>> +               return NULL;
>> +
>> +       pll_clk->hw.reg = reg + offset;
>> +
>> +       if (streq(name, SOCFPGA_BOOT_CLK))
>> +               init.ops = &clk_boot_ops;
>> +       else
>> +               init.ops = &agilex_clk_pll_ops;
>> +
>> +       init.name = name;
>> +       init.flags = flags;
>> +
>> +       init.num_parents = num_parents;
>> +       init.parent_names = parent_names;
> 
> Is it possible to use the new way of specifying clk parents here so that
> we don't have to keep using strings to describe the clk topology?
> 

Can you point me to what you mean here? Perhaps a driver that is using
this new way of specifying clk parents?

Thanks,
Dinh