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Date:   Tue, 6 Jun 2023 07:09:59 -0500
From:   Nishanth Menon <nm@ti.com>
To:     Udit Kumar <u-kumar1@ti.com>
CC:     <vigneshr@ti.com>, <kristo@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <conor+dt@kernel.org>, <m-chawdhry@ti.com>, <n-francis@ti.com>
Subject: Re: [PATCH v3 5/5] arm64: dts: ti: k3-j7200-common-proc-board: Add
 uart pin mux in wkup_pmx0
Message-ID: <20230606120959.r4pnxuigknl7qkjr@outpour>
References: <20230604045525.1889083-1-u-kumar1@ti.com>
 <20230604045525.1889083-6-u-kumar1@ti.com>
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On 10:25-20230604, Udit Kumar wrote:
> Add uart pin mux of wkup domain into common board file.
> 
> Signed-off-by: Udit Kumar <u-kumar1@ti.com>
> ---
>  .../dts/ti/k3-j7200-common-proc-board.dts     | 22 ++++++++++++++++++-
>  1 file changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> index e12d93f56c51..809d1c910015 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> @@ -79,6 +79,24 @@ vdd_sd_dv: gpio-regulator-TLV71033 {
>  	};
>  };
>  
> +&wkup_pmx0 {
> +	mcu_uart0_pins_default: mcu_uart0_pins_default {
> +		pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0xf4, PIN_INPUT, 0) /* (D20) MCU_UART0_RXD */
> +			J721E_WKUP_IOPAD(0xf0, PIN_OUTPUT, 0) /* (D19) MCU_UART0_TXD */
> +			J721E_WKUP_IOPAD(0xf8, PIN_INPUT, 0) /* (E20) MCU_UART0_CTSn */
> +			J721E_WKUP_IOPAD(0xfc, PIN_OUTPUT, 0) /* (E21) MCU_UART0_RTSn */
> +		>;
> +	};
> +
> +	wkup_uart0_pins_default: wkup_uart0_pins_default {

Could you add the pins to wkup_uart0 node as well?

> +		pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0xb0, PIN_INPUT, 0) /* (B14) WKUP_UART0_RXD */
> +			J721E_WKUP_IOPAD(0xb4, PIN_OUTPUT, 0) /* (A14) WKUP_UART0_TXD */
> +		>;
> +	};
> +};

We are also missing pinmux for main_uart1 and main_uart2

> +
>  &wkup_pmx2 {
>  	mcu_cpsw_pins_default: mcu-cpsw-pins-default {
>  		pinctrl-single,pins = <
> @@ -157,7 +175,9 @@ &wkup_uart0 {
>  
>  &mcu_uart0 {
>  	status = "okay";
> -	/* Default pinmux */
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mcu_uart0_pins_default>;
> +	clock-frequency = <96000000>;
>  };
>  
>  &main_uart0 {
> -- 
> 2.34.1
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D