linux-arm-msm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: rojay@codeaurora.org
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: agross@kernel.org, robh+dt@kernel.org,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Rajendra Nayak <rnayak@codeaurora.org>,
	saiprakash.ranjan@codeaurora.org, msavaliy@qti.qualcomm.com
Subject: Re: [PATCH V3 1/3] arm64: dts: sc7280: Add QSPI node
Date: Tue, 06 Jul 2021 14:49:27 +0530	[thread overview]
Message-ID: <2ad7a00924b5065bf61c47e8b6d24339@codeaurora.org> (raw)
In-Reply-To: <98befc79fc039496b0c12d7983319c92@codeaurora.org>

On 2021-06-08 13:37, rojay@codeaurora.org wrote:
> On 2021-06-06 09:25, Bjorn Andersson wrote:
>> On Fri 04 Jun 08:54 CDT 2021, Roja Rani Yarubandi wrote:
>> 
>>> Add QSPI DT node for SC7280 SoC.
>>> 
>>> Signed-off-by: Roja Rani Yarubandi <rojay@codeaurora.org>
>>> ---
>>> Changes in V3:
>>>  - Broken the huge V2 patch into 3 smaller patches.
>>>    1. QSPI DT nodes
>>>    2. QUP wrapper_0 DT nodes
>>>    3. QUP wrapper_1 DT nodes
>>> 
>>> Changes in V2:
>>>  - As per Doug's comments removed pinmux/pinconf subnodes.
>>>  - As per Doug's comments split of SPI, UART nodes has been done.
>>>  - Moved QSPI node before aps_smmu as per the order.
>>> 
>>>  arch/arm64/boot/dts/qcom/sc7280-idp.dts | 29 ++++++++++++
>>>  arch/arm64/boot/dts/qcom/sc7280.dtsi    | 61 
>>> +++++++++++++++++++++++++
>>>  2 files changed, 90 insertions(+)
>>> 
>>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts 
>>> b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>>> index 3900cfc09562..d0edffc15736 100644
>>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
>>> @@ -268,6 +268,22 @@ pmr735b_die_temp {
>>>  		};
>>>  };
>>> 
>>> +&qspi {
>>> +	status = "okay";
>>> +	pinctrl-names = "default";
>>> +	pinctrl-0 = <&qspi_clk>, <&qspi_cs0>, <&qspi_data01>;
>>> +
>>> +	flash@0 {
>>> +		compatible = "jedec,spi-nor";
>>> +		reg = <0>;
>>> +
>>> +		/* TODO: Increase frequency after testing */
>>> +		spi-max-frequency = <25000000>;
>>> +		spi-tx-bus-width = <2>;
>>> +		spi-rx-bus-width = <2>;
>>> +	};
>>> +};
>>> +
>>>  &qupv3_id_0 {
>>>  	status = "okay";
>>>  };
>>> @@ -278,6 +294,19 @@ &uart5 {
>>> 
>>>  /* PINCTRL - additions to nodes defined in sc7280.dtsi */
>>> 
>>> +&qspi_cs0 {
>>> +	bias-disable;
>>> +};
>>> +
>>> +&qspi_clk {
>>> +	bias-disable;
>>> +};
>>> +
>>> +&qspi_data01 {
>>> +	/* High-Z when no transfers; nice to park the lines */
>>> +	bias-pull-up;
>>> +};
>>> +
>>>  &qup_uart5_default {
>>>  	tx {
>>>  		pins = "gpio46";
>>> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi 
>>> b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>>> index 6c9d5eb93f93..3047ab802cd2 100644
>>> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>>> @@ -1061,6 +1061,42 @@ apss_merge_funnel_in: endpoint {
>>>  			};
>>>  		};
>>> 
>>> +		qspi_opp_table: qspi-opp-table {
>> 
>> This node doesn't represents anything on the mmio bus, so it shouldn't
>> live in in /soc. Can't you move it into &qspi?
>> 
>> Regards,
>> Bjorn
>> 
> 
> Sure, will move it into qspi node.
> 
> Thanks,
> Roja
> 

Hi Bjorn,

Moving "qspi_opp_table" inside &qspi node causing this warning:
arch/arm64/boot/dts/qcom/sc7280.dtsi:1055.35-1072.6: Warning 
(spi_bus_reg): /soc@0/spi@88dc000/qspi-opp-table: missing or empty reg 
property

Shall I keep the qspi-opp-table out of &qspi node?

Thanks,
Roja

>>> +			compatible = "operating-points-v2";
>>> +
>>> +			opp-75000000 {
>>> +				opp-hz = /bits/ 64 <75000000>;
>>> +				required-opps = <&rpmhpd_opp_low_svs>;
>>> +			};
>>> +
>>> +			opp-150000000 {
>>> +				opp-hz = /bits/ 64 <150000000>;
>>> +				required-opps = <&rpmhpd_opp_svs>;
>>> +			};
>>> +
>>> +			opp-300000000 {
>>> +				opp-hz = /bits/ 64 <300000000>;
>>> +				required-opps = <&rpmhpd_opp_nom>;
>>> +			};
>>> +		};
>>> +
>>> +		qspi: spi@88dc000 {
>>> +			compatible = "qcom,qspi-v1";
>>> +			reg = <0 0x088dc000 0 0x1000>;
>>> +			#address-cells = <1>;
>>> +			#size-cells = <0>;
>>> +			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
>>> +			clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
>>> +				 <&gcc GCC_QSPI_CORE_CLK>;
>>> +			clock-names = "iface", "core";
>>> +			interconnects = <&gem_noc MASTER_APPSS_PROC 0
>>> +					&cnoc2 SLAVE_QSPI_0 0>;
>>> +			interconnect-names = "qspi-config";
>>> +			power-domains = <&rpmhpd SC7280_CX>;
>>> +			operating-points-v2 = <&qspi_opp_table>;
>>> +			status = "disabled";
>>> +		};

  reply	other threads:[~2021-07-06  9:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-04 13:54 [PATCH V3 0/3] Add QSPI and QUPv3 DT nodes for SC7280 SoC Roja Rani Yarubandi
2021-06-04 13:54 ` [PATCH V3 1/3] arm64: dts: sc7280: Add QSPI node Roja Rani Yarubandi
2021-06-04 21:45   ` Stephen Boyd
2021-06-08  8:05     ` rojay
2021-06-06  3:55   ` Bjorn Andersson
2021-06-08  8:07     ` rojay
2021-07-06  9:19       ` rojay [this message]
2021-07-09  0:56         ` Stephen Boyd
2021-07-14  7:47           ` rojay
2021-07-19 20:08             ` Bjorn Andersson
2021-09-09  4:43               ` rajpat
2021-06-04 13:54 ` [PATCH V3 2/3] arm64: dts: sc7280: Add QUPv3 wrapper_0 nodes Roja Rani Yarubandi
2021-06-06  3:49   ` Bjorn Andersson
2021-06-08  8:16     ` rojay
2021-06-04 13:54 ` [PATCH V3 3/3] arm64: dts: sc7280: Add QUPv3 wrapper_1 nodes Roja Rani Yarubandi
2021-06-06  3:53   ` Bjorn Andersson
2021-06-08  8:10     ` rojay

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2ad7a00924b5065bf61c47e8b6d24339@codeaurora.org \
    --to=rojay@codeaurora.org \
    --cc=agross@kernel.org \
    --cc=bjorn.andersson@linaro.org \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=msavaliy@qti.qualcomm.com \
    --cc=rnayak@codeaurora.org \
    --cc=robh+dt@kernel.org \
    --cc=saiprakash.ranjan@codeaurora.org \
    --subject='Re: [PATCH V3 1/3] arm64: dts: sc7280: Add QSPI node' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).