linux-kernel - Re: [PATCH 2/2] interconnect: qcom: Add SDX55 interconnect provider driver

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Date:   Wed, 20 Jan 2021 22:07:35 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Georgi Djakov <georgi.djakov@...aro.org>
Cc:     robh+dt@...nel.org, agross@...nel.org, bjorn.andersson@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        okukatla@...eaurora.org
Subject: Re: [PATCH 2/2] interconnect: qcom: Add SDX55 interconnect provider
 driver

Hi Georgi,

On Wed, Jan 20, 2021 at 04:59:31PM +0200, Georgi Djakov wrote:
> Hi Mani,
> 
> Thanks for the patch!
> 
> On 1/20/21 10:06, Manivannan Sadhasivam wrote:
> > Add driver for the Qualcomm interconnect buses found in SDX55 based
> > platforms. The topology consists of several NoCs that are controlled by
> > a remote processor that collects the aggregated bandwidth for each
> > master-slave pairs.
> > 
> > Based on SM8250 driver and generated from downstream dts.
> > 
> > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> > ---
> >   drivers/interconnect/qcom/Kconfig  |  10 +
> >   drivers/interconnect/qcom/Makefile |   2 +
> >   drivers/interconnect/qcom/sdx55.c  | 356 +++++++++++++++++++++++++++++
> >   drivers/interconnect/qcom/sdx55.h  |  70 ++++++
> >   4 files changed, 438 insertions(+)
> >   create mode 100644 drivers/interconnect/qcom/sdx55.c
> >   create mode 100644 drivers/interconnect/qcom/sdx55.h
> > 
> > diff --git a/drivers/interconnect/qcom/Kconfig b/drivers/interconnect/qcom/Kconfig
> > index a8f93ba265f8..6df7e2161a0a 100644
> > --- a/drivers/interconnect/qcom/Kconfig
> > +++ b/drivers/interconnect/qcom/Kconfig
> > @@ -65,6 +65,16 @@ config INTERCONNECT_QCOM_SDM845
> >   	  This is a driver for the Qualcomm Network-on-Chip on sdm845-based
> >   	  platforms.
> > +config INTERCONNECT_QCOM_SDX55
> > +	tristate "Qualcomm SDX55 interconnect driver"
> > +	depends on INTERCONNECT_QCOM
> > +	depends on (QCOM_RPMH && QCOM_COMMAND_DB && OF) || COMPILE_TEST
> 
> Why not use depends on INTERCONNECT_QCOM_RPMH_POSSIBLE?
>

I just followed the same pattern as other RPMh based drivers. And I don't get
what you are suggesting here! Can you please explain?
 
Thanks,
Mani