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From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Johan Hovold <johan@kernel.org>
Cc: "Dmitry Baryshkov" <dmitry.baryshkov@linaro.org>,
	"Andy Gross" <agross@kernel.org>,
	"Bjorn Andersson" <bjorn.andersson@linaro.org>,
	"Stephen Boyd" <swboyd@chromium.org>,
	"Michael Turquette" <mturquette@baylibre.com>,
	"Taniya Das" <quic_tdas@quicinc.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Prasad Malisetty" <quic_pmaliset@quicinc.com>,
	"Johan Hovold" <johan+linaro@kernel.org>,
	linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-pci@vger.kernel.org
Subject: Re: [PATCH v4 2/5] clk: qcom: regmap: add pipe clk implementation
Date: Wed, 11 May 2022 20:04:35 +0530	[thread overview]
Message-ID: <20220511143435.GA4067@thinkpad> (raw)
In-Reply-To: <YnjtJuR7ShSsF+mz@hovoldconsulting.com>

On Mon, May 09, 2022 at 12:29:58PM +0200, Johan Hovold wrote:
> On Fri, May 06, 2022 at 04:00:38PM +0300, Dmitry Baryshkov wrote:
> > On 06/05/2022 15:40, Johan Hovold wrote:
> > > On Mon, May 02, 2022 at 02:18:26PM +0300, Dmitry Baryshkov wrote:
> > >> On 02/05/2022 14:10, Manivannan Sadhasivam wrote:
> > > 
> > >>> I don't understand this. How can you make this clock disabled? It just has 4
> > >>> parents, right?
> > >>
> > >> It has 4 parents. It uses just two of them (pipe and tcxo).
> > > 
> > > Really? I did not know that. Which are the other two parents and what
> > > would they be used for?
> > 
> > This is described neither in the downstream tree nor in any sources I 
> > have at possession.
> 
> Yeah, I don't see anything downstream either, but how do you know that
> it has four parents then?
> 

This information is available in Qcom's internal GCC documentation.

Thanks,
Mani

> Johan

-- 
மணிவண்ணன் சதாசிவம்

  parent reply	other threads:[~2022-05-11 14:34 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-01 19:21 [PATCH v4 0/5] PCI: qcom: Rework pipe_clk/pipe_clk_src handling Dmitry Baryshkov
2022-05-01 19:21 ` [PATCH v4 1/5] PCI: qcom: Remove unnecessary pipe_clk handling Dmitry Baryshkov
2022-05-02 10:13   ` Manivannan Sadhasivam
2022-05-09  9:41   ` Johan Hovold
2022-05-01 19:21 ` [PATCH v4 2/5] clk: qcom: regmap: add pipe clk implementation Dmitry Baryshkov
2022-05-02 10:10   ` Manivannan Sadhasivam
2022-05-02 10:35     ` Dmitry Baryshkov
2022-05-02 11:10       ` Manivannan Sadhasivam
2022-05-02 11:18         ` Dmitry Baryshkov
2022-05-02 15:06           ` Manivannan Sadhasivam
2022-05-02 15:24             ` Dmitry Baryshkov
2022-05-06 12:54             ` Johan Hovold
2022-05-06 15:25             ` Manivannan Sadhasivam
2022-05-06 12:40           ` Johan Hovold
2022-05-06 13:00             ` Dmitry Baryshkov
2022-05-09 10:29               ` Johan Hovold
2022-05-11 14:17                 ` Dmitry Baryshkov
2022-05-13  8:22                   ` Johan Hovold
2022-05-11 14:34                 ` Manivannan Sadhasivam [this message]
2022-05-06 12:31   ` Johan Hovold
2022-05-06 12:40     ` Dmitry Baryshkov
2022-05-09 10:28       ` Johan Hovold
2022-05-09 10:17   ` Johan Hovold
2022-05-01 19:21 ` [PATCH v4 3/5] clk: qcom: gcc-sm8450: use new clk_regmap_pipe_ops for PCIe pipe clocks Dmitry Baryshkov
2022-05-01 19:21 ` [PATCH v4 4/5] clk: qcom: gcc-sc7280: " Dmitry Baryshkov
2022-05-01 19:21 ` [PATCH v4 5/5] PCI: qcom: Drop manual pipe_clk_src handling Dmitry Baryshkov
2022-05-09 10:24   ` Johan Hovold
2022-05-11 13:19 ` [PATCH v4 0/5] PCI: qcom: Rework pipe_clk/pipe_clk_src handling Lorenzo Pieralisi

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