linux-kernel - Re: [PATCH v3 3/8] clk: samsung: add BPLL rate table for Exynos 5422 SoC

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Message-ID: <7c28d817-84bd-c88e-de84-801fd97645ec@partner.samsung.com>
Date:   Fri, 1 Feb 2019 16:39:04 +0100
From:   Lukasz Luba <l.luba@...tner.samsung.com>
To:     Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        b.zolnierkie@...sung.com, krzk@...nel.org, kgene@...nel.org,
        kyungmin.park@...sung.com, m.szyprowski@...sung.com,
        myungjoo.ham@...sung.com,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 3/8] clk: samsung: add BPLL rate table for Exynos
 5422 SoC

Hi Sylwester,

On 2/1/19 3:19 PM, Sylwester Nawrocki wrote:
> On 2/1/19 14:56, Lukasz Luba wrote:
>>> Exynos5422 used the same PLL table for apll, kpll, bpll and so on.
>>> You don't need to make the separate pll table. Just add new entries
>>> to exynos5420_pll2550x_24mhz_tbl table.
>> OK, I will extend the exynos5420_pll2550x_24mhz_tbl table.
>>
>> In v4 patch set, it will be fixed.
> 
> I would prefer to keep the rate table separate for BPLL, until correctness
> of new rates introduced in the patch and their applicability to the other PLLs
> is confirmed by the hardware team and verified in tests.
Good point, I share the same opinion. So, this new table for BPLL will stay.
Do you agree Chanwoo?
The BPLL is only used only by DMC.

Regards,
Lukasz
>