linux-kernel - Re: [PATCH v3 4/4] ARM: dts: at91: sama5d27

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Message-ID: <2ccefcb4-cf6a-a675-4ff3-b7a2d314333a@microchip.com>
Date:   Tue, 24 Aug 2021 15:26:35 +0000
From:   <Claudiu.Beznea@...rochip.com>
To:     <robh@...nel.org>
CC:     <ulf.hansson@...aro.org>, <Nicolas.Ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <Ludovic.Desroches@...rochip.com>,
        <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <Eugen.Hristev@...rochip.com>
Subject: Re: [PATCH v3 4/4] ARM: dts: at91: sama5d27_wlsom1: add wifi device

On 24.08.2021 15:23, Rob Herring wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Fri, Aug 20, 2021 at 12:28:03PM +0300, Claudiu Beznea wrote:
>> From: Eugen Hristev <eugen.hristev@...rochip.com>
>>
>> SAMA5D27 WLSOM1 boards has a WILC3000 device soldered. Add proper
>> device tree nodes for this.
>>
>> [eugen.hristev: original author of this code]
>> Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
>> [nicolas.ferre: original author of this code]
>> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
>> Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
>> ---
>>  arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi | 71 +++++++++++++++++++++
>>  1 file changed, 71 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi b/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
>> index 025a78310e3a..c7bcfd3ce91d 100644
>> --- a/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
>> +++ b/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
>> @@ -30,6 +30,15 @@ main_xtal {
>>                       clock-frequency = <24000000>;
>>               };
>>       };
>> +
>> +     wifi_pwrseq: wifi_pwrseq {
>> +             compatible = "mmc-pwrseq-wilc1000";
>> +             reset-gpios = <&pioA PIN_PA27 GPIO_ACTIVE_HIGH>;
>> +             powerdown-gpios = <&pioA PIN_PA29 GPIO_ACTIVE_HIGH>;
>> +             pinctrl-0 = <&pinctrl_wilc_pwrseq>;
>> +             pinctrl-names = "default";
>> +             status = "okay";
> 
> 'okay' is the default, so you can drop this.
> 
>> +     };
>>  };
>>
>>  &flx1 {
>> @@ -310,5 +319,67 @@ pinctrl_qspi1_default: qspi1_default {
>>                        <PIN_PB10__QSPI1_IO3>;
>>               bias-pull-up;
>>       };
>> +
>> +     pinctrl_sdmmc1_default: sdmmc1_default {
>> +             cmd-data {
>> +                     pinmux = <PIN_PA28__SDMMC1_CMD>,
>> +                              <PIN_PA18__SDMMC1_DAT0>,
>> +                              <PIN_PA19__SDMMC1_DAT1>,
>> +                              <PIN_PA20__SDMMC1_DAT2>,
>> +                              <PIN_PA21__SDMMC1_DAT3>;
>> +                     bias-disable;
>> +             };
>> +
>> +             conf-ck {
>> +                     pinmux = <PIN_PA22__SDMMC1_CK>;
>> +                     bias-disable;
>> +             };
>> +     };
>> +
>> +     pinctrl_wilc_default: wilc_default {
>> +             conf-irq {
>> +                     pinmux = <PIN_PB25__GPIO>;
>> +                     bias-disable;
>> +             };
>> +     };
>> +
>> +     pinctrl_wilc_pwrseq: wilc_pwrseq {
>> +             conf-ce-nrst {
>> +                     pinmux = <PIN_PA27__GPIO>,
>> +                              <PIN_PA29__GPIO>;
>> +                     bias-disable;
>> +             };
>> +
>> +             conf-rtcclk {
>> +                     pinmux = <PIN_PB13__PCK1>;
>> +                     bias-disable;
>> +             };
>> +     };
>> +};
>> +
>> +&sdmmc1 {
>> +     #address-cells = <1>;
>> +     #size-cells = <0>;
>> +     bus-width = <4>;
>> +     pinctrl-names = "default";
>> +     pinctrl-0 = <&pinctrl_sdmmc1_default>;
>> +     mmc-pwrseq = <&wifi_pwrseq>;
>> +     no-1-8-v;
>> +     non-removable;
>> +     status = "okay";
>> +
>> +     wilc: wilc@0 {
> 
> wifi@0
> 
>> +             reg = <0>;
>> +             bus-width = <4>;
>> +             compatible = "microchip,wilc3000", "microchip,wilc1000";
>> +             pinctrl-names = "default";
>> +             pinctrl-0 = <&pinctrl_wilc_default>;
>> +             irq-gpios = <&pioA PIN_PB25 GPIO_ACTIVE_LOW>;
>> +             clocks = <&pmc PMC_TYPE_SYSTEM 9>;
>> +             clock-names = "rtc";
>> +             assigned-clocks = <&pmc PMC_TYPE_SYSTEM 9>;
>> +             assigned-clock-rates = <32768>;
>> +             status = "okay";
> 
> Again, that's the default so drop.
> 
> Did you run validation (make dtbs_check) on your changes because I see
> multiple problems.

No, I haven't. Apologies! I'll do the proper adjustments in v3.

Thank you for your review,
Claudiu Beznea

> 
> Rob
>