linux-kernel - Re: [PATCH 1/2] mmc: sdhci-tegra: Separate T19x and T23x SoC data

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Date:   Mon, 12 Sep 2022 15:49:09 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Prathamesh Shete <pshete@...dia.com>, adrian.hunter@...el.com,
        ulf.hansson@...aro.org, thierry.reding@...il.com,
        p.zabel@...gutronix.de, linux-mmc@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     anrao@...dia.com, smangipudi@...dia.com
Subject: Re: [PATCH 1/2] mmc: sdhci-tegra: Separate T19x and T23x SoC data


On 12/09/2022 14:23, Prathamesh Shete wrote:
> Create new SoC data structure for T23x platforms.

Always helpful to say why we need to add new SoC data. Ie. what is 
different?

> Signed-off-by: Aniruddha Tvs Rao <anrao@...dia.com>
> Signed-off-by: Prathamesh Shete <pshete@...dia.com>
> ---
>   drivers/mmc/host/sdhci-tegra.c | 17 ++++++++++++++++-
>   1 file changed, 16 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
> index 2d2d8260c681..136c045d8f01 100644
> --- a/drivers/mmc/host/sdhci-tegra.c
> +++ b/drivers/mmc/host/sdhci-tegra.c
> @@ -1525,7 +1525,8 @@ static const struct sdhci_pltfm_data sdhci_tegra186_pdata = {
>   		  SDHCI_QUIRK_NO_HISPD_BIT |
>   		  SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC |
>   		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
> -	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
> +	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
> +		   SDHCI_QUIRK2_ISSUE_CMD_DAT_RESET_TOGETHER,
>   	.ops  = &tegra186_sdhci_ops,
>   };
>   
> @@ -1556,7 +1557,21 @@ static const struct sdhci_tegra_soc_data soc_data_tegra194 = {
>   	.max_tap_delay = 139,
>   };
>   
> +static const struct sdhci_tegra_soc_data soc_data_tegra234 = {
> +	.pdata = &sdhci_tegra186_pdata,
> +	.dma_mask = DMA_BIT_MASK(39),
> +	.nvquirks = NVQUIRK_NEEDS_PAD_CONTROL |
> +		    NVQUIRK_HAS_PADCALIB |
> +		    NVQUIRK_DIS_CARD_CLK_CONFIG_TAP |
> +		    NVQUIRK_ENABLE_SDR50 |
> +		    NVQUIRK_ENABLE_SDR104 |
> +		    NVQUIRK_HAS_TMCLK,
> +	.min_tap_delay = 95,
> +	.max_tap_delay = 111,
> +};
> +
>   static const struct of_device_id sdhci_tegra_dt_match[] = {
> +	{ .compatible = "nvidia,tegra234-sdhci", .data = &soc_data_tegra234 },
>   	{ .compatible = "nvidia,tegra194-sdhci", .data = &soc_data_tegra194 },
>   	{ .compatible = "nvidia,tegra186-sdhci", .data = &soc_data_tegra186 },
>   	{ .compatible = "nvidia,tegra210-sdhci", .data = &soc_data_tegra210 },

-- 
nvpublic