linux-kernel - Re: [PATCH V2 02/15] arm64: dts: imx8mp-evk: correct pcie pad settings

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Message-ID: <20221028145901.q4i73vwagny36xdj@pengutronix.de>
Date:   Fri, 28 Oct 2022 16:59:01 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de,
        devicetree@...r.kernel.org, Peng Fan <peng.fan@....com>,
        linux-kernel@...r.kernel.org, linux-imx@....com,
        kernel@...gutronix.de, festevam@...il.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH V2 02/15] arm64: dts: imx8mp-evk: correct pcie pad
 settings

On 22-10-24, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
> 
> According to RM bit layout, BIT3 and BIT0 are reserved.
>   8  7   6   5   4   3  2 1  0
>   PE HYS PUE ODE FSEL X  DSE  X
> 
> Although function is not broken, we should not set reserved bit.
> 
> Fixes: d50650500064 ("arm64: dts: imx8mp-evk: Add PCIe support")
> Signed-off-by: Peng Fan <peng.fan@....com>

LGTM, feel free to add my:

Reviewed-by: Marco Felsch <m.felsch@...gutronix.de>

> ---
>  arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index 9f1469db554d..b4c1ef2559f2 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> @@ -544,14 +544,14 @@ MX8MP_IOMUXC_SPDIF_TX__I2C5_SCL         0x400001c2
>  
>  	pinctrl_pcie0: pcie0grp {
>  		fsl,pins = <
> -			MX8MP_IOMUXC_I2C4_SCL__PCIE_CLKREQ_B	0x61 /* open drain, pull up */
> -			MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07	0x41
> +			MX8MP_IOMUXC_I2C4_SCL__PCIE_CLKREQ_B	0x60 /* open drain, pull up */
> +			MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07	0x40
>  		>;
>  	};
>  
>  	pinctrl_pcie0_reg: pcie0reggrp {
>  		fsl,pins = <
> -			MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06	0x41
> +			MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06	0x40
>  		>;
>  	};
>  
> -- 
> 2.37.1
> 
> 
>