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From: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Stephen Boyd <sboyd@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Taniya Das <quic_tdas@quicinc.com>
Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH 11/13] clk: qcom: cpu-8996: fix PLL clock ops
Date: Thu, 12 Jan 2023 17:10:30 +0100	[thread overview]
Message-ID: <b2798d5a-d637-cc94-501e-0739345f0fed@linaro.org> (raw)
In-Reply-To: <20230111192004.2509750-12-dmitry.baryshkov@linaro.org>



On 11.01.2023 20:20, Dmitry Baryshkov wrote:
> Switch CPU PLLs to use clk_alpha_pll_hwfsm_ops, it seems to suit
> better.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
I *think* SUPPORTS_DYNAMIC_UPDATE should also be kicked from
non-alt PLLs.. Otherwise we might have been kicking ourselves
in the face all along, changing the frequency of a running
PLL that doesn't support it if we were using the main PLL
and not the altPLL/ACD..

Downstream sets it only for clk_ops_alpha_pll_hwfsm which is
used on alt PLLs only

This change seems sound, as Huayra supports dynamic update
even without setting any flags.

Konrad
>  drivers/clk/qcom/clk-cpu-8996.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/qcom/clk-cpu-8996.c b/drivers/clk/qcom/clk-cpu-8996.c
> index 1c00eb629b61..b53cddc4bca3 100644
> --- a/drivers/clk/qcom/clk-cpu-8996.c
> +++ b/drivers/clk/qcom/clk-cpu-8996.c
> @@ -128,7 +128,7 @@ static struct clk_alpha_pll pwrcl_pll = {
>  		.name = "pwrcl_pll",
>  		.parent_data = pll_parent,
>  		.num_parents = ARRAY_SIZE(pll_parent),
> -		.ops = &clk_alpha_pll_huayra_ops,
> +		.ops = &clk_alpha_pll_hwfsm_ops,
>  	},
>  };
>  
> @@ -140,7 +140,7 @@ static struct clk_alpha_pll perfcl_pll = {
>  		.name = "perfcl_pll",
>  		.parent_data = pll_parent,
>  		.num_parents = ARRAY_SIZE(pll_parent),
> -		.ops = &clk_alpha_pll_huayra_ops,
> +		.ops = &clk_alpha_pll_hwfsm_ops,
>  	},
>  };
>  

  reply	other threads:[~2023-01-12 16:15 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-11 19:19 [PATCH 00/13] clk: qcom: cpu-8996: stability fixes Dmitry Baryshkov
2023-01-11 19:19 ` [PATCH 01/13] clk: qcom: clk-alpha-pll: program PLL_TEST/PLL_TEST_U if required Dmitry Baryshkov
2023-01-11 19:19 ` [PATCH 02/13] clk: qcom: cpu-8996: correct PLL programming Dmitry Baryshkov
2023-01-11 20:57   ` Konrad Dybcio
2023-01-11 19:19 ` [PATCH 03/13] clk: qcom: cpu-8996: fix the init clock rate Dmitry Baryshkov
2023-01-11 20:58   ` Konrad Dybcio
2023-01-11 21:51     ` Dmitry Baryshkov
2023-01-12 12:12       ` Konrad Dybcio
2023-01-11 19:19 ` [PATCH 04/13] clk: qcom: cpu-8996: support using GPLL0 as SMUX input Dmitry Baryshkov
2023-01-11 19:26   ` Stephen Boyd
2023-01-11 20:00     ` Dmitry Baryshkov
2023-01-11 20:59   ` Konrad Dybcio
2023-01-11 21:52     ` Dmitry Baryshkov
2023-01-12 12:16       ` Konrad Dybcio
2023-01-11 19:19 ` [PATCH 05/13] clk: qcom: cpu-8996: skip ACD init if the setup is valid Dmitry Baryshkov
2023-01-11 21:00   ` Konrad Dybcio
2023-01-11 21:55     ` Dmitry Baryshkov
2023-01-12 12:17       ` Konrad Dybcio
2023-01-11 19:19 ` [PATCH 06/13] clk: qcom: cpu-8996: simplify the cpu_clk_notifier_cb Dmitry Baryshkov
2023-01-11 21:03   ` Konrad Dybcio
2023-01-11 22:01     ` Dmitry Baryshkov
2023-01-12 14:13       ` Konrad Dybcio
2023-01-11 19:19 ` [PATCH 07/13] clk: qcom: cpu-8996: setup PLLs before registering clocks Dmitry Baryshkov
2023-01-11 21:04   ` Konrad Dybcio
2023-01-11 19:19 ` [PATCH 08/13] clk: qcom: cpu-8996: move qcom_cpu_clk_msm8996_acd_init call Dmitry Baryshkov
2023-01-12 14:26   ` Konrad Dybcio
2023-01-11 19:20 ` [PATCH 09/13] clk: qcom: cpu-8996: fix PLL configuration sequence Dmitry Baryshkov
2023-01-11 21:08   ` Konrad Dybcio
2023-01-11 22:05     ` Dmitry Baryshkov
2023-01-12 14:32       ` Konrad Dybcio
2023-01-13 11:19         ` Dmitry Baryshkov
2023-01-13 13:43           ` Konrad Dybcio
2023-01-11 19:20 ` [PATCH 10/13] clk: qcom: cpu-8996: fix ACD initialization Dmitry Baryshkov
2023-01-12 14:35   ` Konrad Dybcio
2023-01-13 10:44     ` Dmitry Baryshkov
2023-01-13 14:00       ` Konrad Dybcio
2023-01-11 19:20 ` [PATCH 11/13] clk: qcom: cpu-8996: fix PLL clock ops Dmitry Baryshkov
2023-01-12 16:10   ` Konrad Dybcio [this message]
2023-01-13 11:35     ` Dmitry Baryshkov
2023-01-13 14:02       ` Konrad Dybcio
2023-01-11 19:20 ` [PATCH 12/13] clk: qcom: cpu-8996: change setup sequence to follow vendor kernel Dmitry Baryshkov
2023-01-12 14:42   ` Konrad Dybcio
2023-01-11 19:20 ` [PATCH 13/13] arm64: dts: qcom: msm8996: support using GPLL0 as kryocc input Dmitry Baryshkov

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