linux-kernel - Re: [PATCH v3 1/2] arch: arm64: dts: qcom: Add support for SM6125

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Date:   Wed, 16 Jun 2021 15:01:47 +0200
From:   Martin Botka <martin.botka@...ainline.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        konrad.dybcio@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] arch: arm64: dts: qcom: Add support for SM6125



On Tue, Jun 15 2021 at 07:29:49 PM -0500, Bjorn Andersson 
<bjorn.andersson@...aro.org> wrote:
> On Sun 13 Jun 03:05 CDT 2021, Martin Botka wrote:
> 
>>  This commits adds the Device tree file for SM6125 SoC.
>> 
>>  Signed-off-by: Martin Botka <martin.botka@...ainline.org>
> 
> Thanks for your work on this Martin, just spotted a few minor 
> finishing
> touches below.

:)

> 
>>  ---
>>  Changes in V2:
>>  Update compatibles for mailbox & pinctrl
>>  Changes in V3:
>>  Fix reg for sdhci1
>>  Replace hc_mem with hc and core_mem with core
>>   arch/arm64/boot/dts/qcom/sm6125.dtsi | 603 
>> +++++++++++++++++++++++++++
>>   1 file changed, 603 insertions(+)
>>   create mode 100644 arch/arm64/boot/dts/qcom/sm6125.dtsi
>> 
>>  diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi 
>> b/arch/arm64/boot/dts/qcom/sm6125.dtsi
> [..]
>>  +	soc {
>>  +		#address-cells = <1>;
>>  +		#size-cells = <1>;
>>  +		ranges = <0x00 0x00 0x00 0xffffffff>;
>>  +		compatible = "simple-bus";
>>  +
>>  +		tcsr_mutex_regs: syscon@...000 {
> 
> It's no longer valid to have a stray syscon like this, so please 
> update
> this in accordance with the tcsr mutex binding.
> 
> If this platform needs to poke at the registers at the end of the 
> memory
> region, you can do compatible = "qcom,tcsr-mutex", "syscon"; to make 
> it
> represent both things.

ack

> 
>>  +			compatible = "syscon";
>>  +			reg = <0x00340000 0x20000>;
>>  +		};
>>  +
>>  +		tlmm: pinctrl@...000 {
>>  +			compatible = "qcom,sm6125-tlmm";
>>  +			reg = <0x00500000 0x400000>,
>>  +				<0x00900000 0x400000>,
>>  +				<0x00d00000 0x400000>;
>>  +			reg-names = "west", "south", "east";
>>  +			interrupts = <GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>;
>>  +			gpio-controller;
>>  +			gpio-ranges = <&tlmm 0 0 134>;
>>  +			#gpio-cells = <2>;
>>  +			interrupt-controller;
>>  +			#interrupt-cells = <2>;
>>  +
>>  +			sdc2_state_on: sdc2-on {
> 
> As I just forced Konrad to move the on-state definition to the board
> file, can you please do the same?

ofc

> 
>>  +				clk {
>>  +					pins = "sdc2_clk";
>>  +					bias-disable;
>>  +					drive-strength = <16>;
>>  +				};
>>  +
>>  +				cmd {
>>  +					pins = "sdc2_cmd";
>>  +					bias-pull-up;
>>  +					drive-strength = <10>;
>>  +				};
>>  +
>>  +				data {
>>  +					pins = "sdc2_data";
>>  +					bias-pull-up;
>>  +					drive-strength = <10>;
>>  +				};
>>  +
>>  +				sd-cd {
>>  +					pins = "gpio98";
>>  +					bias-pull-up;
>>  +					drive-strength = <2>;
>>  +				};
>>  +			};
>>  +
>>  +			sdc2_state_off: sdc2-off {
> 
> This should be common between all boards (except possibly the cd 
> line),
> so this is okay to share here.

Do you want me to move the cd as well or
do you want it to stay in here?

> 
>>  +				clk {
>>  +					pins = "sdc2_clk";
>>  +					bias-disable;
>>  +					drive-strength = <2>;
>>  +				};
>>  +
>>  +				cmd {
>>  +					pins = "sdc2_cmd";
>>  +					bias-pull-up;
>>  +					drive-strength = <2>;
>>  +				};
>>  +
>>  +				data {
>>  +					pins = "sdc2_data";
>>  +					bias-pull-up;
>>  +					drive-strength = <2>;
>>  +				};
>>  +
>>  +				sd-cd {
>>  +					pins = "gpio98";
>>  +					bias-disable;
>>  +					drive-strength = <2>;
>>  +				};
>>  +			};
>>  +		};
>>  +
> [..]
>>  +
>>  +		usb3: usb@...8800 {
>>  +			compatible = "qcom,msm8996-dwc3", "qcom,dwc3";
>>  +			reg = <0x04ef8800 0x400>;
>>  +			#address-cells = <1>;
>>  +			#size-cells = <1>;
>>  +			ranges;
>>  +
>>  +			clocks = <&gcc GCC_USB30_PRIM_MASTER_CLK>,
>>  +				<&gcc GCC_SYS_NOC_USB3_PRIM_AXI_CLK>,
>>  +				<&gcc GCC_CFG_NOC_USB3_PRIM_AXI_CLK>,
>>  +				<&gcc GCC_USB3_PRIM_CLKREF_CLK>,
>>  +				<&gcc GCC_USB30_PRIM_SLEEP_CLK>,
>>  +				<&gcc GCC_USB30_PRIM_MOCK_UTMI_CLK>;
>>  +
>>  +			assigned-clocks = <&gcc GCC_USB30_PRIM_MOCK_UTMI_CLK>,
>>  +					  <&gcc GCC_USB30_PRIM_MASTER_CLK>;
>>  +			assigned-clock-rates = <19200000>, <66666667>;
>>  +
>>  +			power-domains = <&gcc USB30_PRIM_GDSC>;
>>  +			qcom,select-utmi-as-pipe-clk;
> 
> Stray space at the end of this line.

Oopsie.

> 
>>  +			status = "disabled";
>>  +
>>  +			usb3_dwc3: dwc3@...0000 {
> 
> These should be usb@ now.

ack

> 
>>  +				compatible = "snps,dwc3";
>>  +				reg = <0x04e00000 0xcd00>;
>>  +				interrupts = <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>;
>>  +				phys = <&hsusb_phy1>;
>>  +				phy-names = "usb2-phy";
>>  +				snps,dis_u2_susphy_quirk;
>>  +				snps,dis_enblslpm_quirk;
>>  +				maximum-speed = "high-speed";
>>  +				dr_mode = "peripheral";
>>  +			};
>>  +		};
> 
> Thanks,
> Bjorn