linux-kernel - Re: [PATCH v1 1/1] mmc: sdhci-of-dwcmshc: enable host V4 support for BlueField-3 SoC

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Date:   Fri, 13 Jan 2023 13:37:48 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Liming Sun <limings@...dia.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        David Woods <davwoods@...dia.com>,
        Shawn Lin <shawn.lin@...k-chips.com>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] mmc: sdhci-of-dwcmshc: enable host V4 support for
 BlueField-3 SoC

On 11/01/23 20:14, Liming Sun wrote:
> This commit enables SDHCI Host V4 support on Bluefield-3 SoC to be
> consistent with the default setting in firmware(UEFI).
> 
> Reviewed-by: David Woods <davwoods@...dia.com>
> Signed-off-by: Liming Sun <limings@...dia.com>

Acked-by: Adrian Hunter <adrian.hunter@...el.com>

> ---
>  drivers/mmc/host/sdhci-of-dwcmshc.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
> index a7343d4bc50e..49338670c89f 100644
> --- a/drivers/mmc/host/sdhci-of-dwcmshc.c
> +++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
> @@ -528,6 +528,11 @@ static int dwcmshc_probe(struct platform_device *pdev)
>  			goto err_clk;
>  	}
>  
> +#ifdef CONFIG_ACPI
> +	if (pltfm_data == &sdhci_dwcmshc_bf3_pdata)
> +		sdhci_enable_v4_mode(host);
> +#endif
> +
>  	host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
>  
>  	err = sdhci_setup_host(host);