linux-kernel - Re: [PATCH 1/1] mmc: dw_mmc: hi3798cv200: add MMC_CAP

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Date:   Thu, 16 Aug 2018 16:01:51 +0800
From:   Shawn Guo <shawn.guo@...aro.org>
To:     igor.opaniuk@...aro.org
Cc:     linux-mmc@...r.kernel.org, Jaehoon Chung <jh80.chung@...sung.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        tianshuliang <tianshuliang@...ilicon.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] mmc: dw_mmc: hi3798cv200: add MMC_CAP_CMD23 capability

On Wed, Aug 15, 2018 at 7:39 PM Igor Opaniuk <igor.opaniuk@...aro.org> wrote:
>
> Enable access to the RPMB on the on-board eMMC of the
> Poplar board.
>
> Signed-off-by: Igor Opaniuk <igor.opaniuk@...aro.org>
> ---
>  drivers/mmc/host/dw_mmc-hi3798cv200.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/mmc/host/dw_mmc-hi3798cv200.c b/drivers/mmc/host/dw_mmc-hi3798cv200.c
> index f9b333f..7a023f0 100644
> --- a/drivers/mmc/host/dw_mmc-hi3798cv200.c
> +++ b/drivers/mmc/host/dw_mmc-hi3798cv200.c
> @@ -23,6 +23,12 @@ struct hi3798cv200_priv {
>         struct clk *drive_clk;
>  };
>
> +static unsigned long dw_mci_hi3798cv200_caps[] = {
> +       MMC_CAP_CMD23,
> +       MMC_CAP_CMD23,
> +       0
> +};

I believe the three dwmmc blocks integrated on Hi3798CV200 SoC are
identical on CMD23 support.  So I expect the zero to be MMC_CAP_CMD23
as well.

Shawn

> +
>  static void dw_mci_hi3798cv200_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>  {
>         struct hi3798cv200_priv *priv = host->priv;
> @@ -160,6 +166,8 @@ static int dw_mci_hi3798cv200_init(struct dw_mci *host)
>  }
>
>  static const struct dw_mci_drv_data hi3798cv200_data = {
> +       .caps = dw_mci_hi3798cv200_caps,
> +       .num_caps = ARRAY_SIZE(dw_mci_hi3798cv200_caps),
>         .init = dw_mci_hi3798cv200_init,
>         .set_ios = dw_mci_hi3798cv200_set_ios,
>         .execute_tuning = dw_mci_hi3798cv200_execute_tuning,
> --
> 2.7.4
>