Re: [PATCH V2 6/7] arm64: dts: qcom: ipq9574: Add support for nsscc node

From: Konrad Dybcio
Date: Wed Sep 13 2023 - 04:43:41 EST


On 13.09.2023 10:38, Geert Uytterhoeven wrote:
> Hi Krzysztof,
>
> On Wed, Sep 13, 2023 at 10:26 AM Krzysztof Kozlowski
> <krzysztof.kozlowski@xxxxxxxxxx> wrote:
>> On 13/09/2023 10:23, Geert Uytterhoeven wrote:
>>>>
>>>>> + clock-names = "nssnoc_nsscc", "nssnoc_snoc", "nssnoc_snoc_1",
>>>>> + "bias_pll_cc_clk", "bias_pll_nss_noc_clk",
>>>>> + "bias_pll_ubi_nc_clk", "gpll0_out_aux", "uniphy0_nss_rx_clk",
>>>>> + "uniphy0_nss_tx_clk", "uniphy1_nss_rx_clk",
>>>>> + "uniphy1_nss_tx_clk", "uniphy2_nss_rx_clk",
>>>>> + "uniphy2_nss_tx_clk", "xo_board_clk";
>>>>
>>>> You are using clock indices. Please drop clock-names.
>>>
>>> What do you mean by "using clock indices"?
>>> Note that the "clock-names" property is required according to the DT bindings.
>>
>> Indeed, thanks for pointing this out. Probably bindings should be changed.
>
> But what's so great about not having "clock-names"?
> There are _14_ input clocks.
clk_parent_data has an "index" member, which lets us bind
clocks[n] to parent[n]. With the DT properties being ABI,
including the order of entries within, that lets us get rid
of clock-names and the matching is marginally faster.

Konrad