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[0/2] Add interconnect driver for IPQ9574 SoC

Message ID 20240321043149.2739204-1-quic_varada@quicinc.com
Headers show
Series Add interconnect driver for IPQ9574 SoC | expand

Message

Varadarajan Narayanan March 21, 2024, 4:31 a.m. UTC 
MSM platforms manage NoC related clocks and scaling from RPM.
However, in IPQ SoCs, RPM is not involved in managing NoC
related clocks and there is no NoC scaling.

However, there is a requirement to enable some NoC interface
clocks for the accessing the peripherals present in the
system. Hence add a minimalistic interconnect driver that
establishes a path from the processor/memory to those peripherals
and vice versa.

Varadarajan Narayanan (2):
  dt-bindings: interconnect: Add Qualcomm IPQ9574 support
  clk: qcom: add IPQ9574 interconnect clocks support

 arch/arm64/boot/dts/qcom/ipq9574.dtsi         |  2 +
 drivers/clk/qcom/gcc-ipq9574.c                | 75 ++++++++++++++++++-
 .../dt-bindings/interconnect/qcom,ipq9574.h   | 62 +++++++++++++++
 3 files changed, 138 insertions(+), 1 deletion(-)
 create mode 100644 include/dt-bindings/interconnect/qcom,ipq9574.h

Comments

Varadarajan Narayanan March 21, 2024, 9:57 a.m. UTC | #1 
On Thu, Mar 21, 2024 at 08:23:01AM +0100, Krzysztof Kozlowski wrote:
> On 21/03/2024 05:31, Varadarajan Narayanan wrote:
> > Add master/slave ids for Qualcomm IPQ9574 Network-On-Chip
> > interfaces. This will be used by the gcc-ipq9574 driver
> > that will for providing interconnect services using the
> > icc-clk framework.
> >
> > Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
> > ---
> >  .../dt-bindings/interconnect/qcom,ipq9574.h   | 62 +++++++++++++++++++
> >  1 file changed, 62 insertions(+)
> >  create mode 100644 include/dt-bindings/interconnect/qcom,ipq9574.h
> >
> > diff --git a/include/dt-bindings/interconnect/qcom,ipq9574.h b/include/dt-bindings/interconnect/qcom,ipq9574.h
> > new file mode 100644
> > index 000000000000..96f79a86e8d2
> > --- /dev/null
> > +++ b/include/dt-bindings/interconnect/qcom,ipq9574.h
> > @@ -0,0 +1,62 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
> > +#ifndef INTERCONNECT_QCOM_IPQ9574_H
> > +#define INTERCONNECT_QCOM_IPQ9574_H
> > +
> > +#define IPQ_APPS_ID			9574	/* some unique value */
> > +#define IPQ_NSS_ID			(IPQ_APPS_ID * 2)
> > +
> > +#define IPQ_ANOC_PCIE0_1_MAS		0
> > +#define IPQ_ANOC_PCIE0_1_SLV		1
>
> Please use style matching rest of mainline code. There is no IPQ in the
> name of interconnect. Open recent SM8650 or similar and see.

Ok. Will update and post the next version.

Thanks
Varada
Rob Herring (Arm) March 21, 2024, 2:35 p.m. UTC | #2 
On Thu, Mar 21, 2024 at 10:01:48AM +0530, Varadarajan Narayanan wrote:
> Add master/slave ids for Qualcomm IPQ9574 Network-On-Chip
> interfaces. This will be used by the gcc-ipq9574 driver
> that will for providing interconnect services using the
> icc-clk framework.
> 
> Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
> ---
>  .../dt-bindings/interconnect/qcom,ipq9574.h   | 62 +++++++++++++++++++
>  1 file changed, 62 insertions(+)
>  create mode 100644 include/dt-bindings/interconnect/qcom,ipq9574.h
> 
> diff --git a/include/dt-bindings/interconnect/qcom,ipq9574.h b/include/dt-bindings/interconnect/qcom,ipq9574.h
> new file mode 100644
> index 000000000000..96f79a86e8d2
> --- /dev/null
> +++ b/include/dt-bindings/interconnect/qcom,ipq9574.h
> @@ -0,0 +1,62 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)

Where did you come up with GPL-2.0+? Every other qcom interconnect 
header is GPL-2.0-only. Is your employer okay with GPLv3 AND after?

Rob
Varadarajan Narayanan March 21, 2024, 3:50 p.m. UTC | #3 
On Thu, Mar 21, 2024 at 09:35:49AM -0500, Rob Herring wrote:
> On Thu, Mar 21, 2024 at 10:01:48AM +0530, Varadarajan Narayanan wrote:
> > Add master/slave ids for Qualcomm IPQ9574 Network-On-Chip
> > interfaces. This will be used by the gcc-ipq9574 driver
> > that will for providing interconnect services using the
> > icc-clk framework.
> >
> > Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
> > ---
> >  .../dt-bindings/interconnect/qcom,ipq9574.h   | 62 +++++++++++++++++++
> >  1 file changed, 62 insertions(+)
> >  create mode 100644 include/dt-bindings/interconnect/qcom,ipq9574.h
> >
> > diff --git a/include/dt-bindings/interconnect/qcom,ipq9574.h b/include/dt-bindings/interconnect/qcom,ipq9574.h
> > new file mode 100644
> > index 000000000000..96f79a86e8d2
> > --- /dev/null
> > +++ b/include/dt-bindings/interconnect/qcom,ipq9574.h
> > @@ -0,0 +1,62 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
>
> Where did you come up with GPL-2.0+? Every other qcom interconnect
> header is GPL-2.0-only. Is your employer okay with GPLv3 AND after?

Oops. Will fix it in the next version.

Thanks
Varada