Re: [PATCH 1/2] mmc: dw_mmc: Factor out dw_mci_init_slot_caps

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On 24 February 2018 at 07:17, Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> wrote:
> Factor out dw_mci_init_slot_caps to consolidate parsing
> all differents types of capabilities from host contrllers.
> No functional change intended.
>
> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>

Thanks, applied for fixes!

Should we add a stable tag as well?

Kind regards
Uffe

> ---
>
>  drivers/mmc/host/dw_mmc.c | 73 ++++++++++++++++++++++++++++-------------------
>  1 file changed, 43 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 88171bb..d9128a5 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -2757,12 +2757,50 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
>         return IRQ_HANDLED;
>  }
>
> +static int dw_mci_init_slot_caps(struct dw_mci_slot *slot)
> +{
> +       struct dw_mci *host = slot->host;
> +       const struct dw_mci_drv_data *drv_data = host->drv_data;
> +       struct mmc_host *mmc = slot->mmc;
> +       int ctrl_id;
> +
> +       if (host->pdata->caps)
> +               mmc->caps = host->pdata->caps;
> +
> +       /*
> +        * Support MMC_CAP_ERASE by default.
> +        * It needs to use trim/discard/erase commands.
> +        */
> +       mmc->caps |= MMC_CAP_ERASE;
> +
> +       if (host->pdata->pm_caps)
> +               mmc->pm_caps = host->pdata->pm_caps;
> +
> +       if (host->dev->of_node) {
> +               ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
> +               if (ctrl_id < 0)
> +                       ctrl_id = 0;
> +       } else {
> +               ctrl_id = to_platform_device(host->dev)->id;
> +       }
> +       if (drv_data && drv_data->caps)
> +               mmc->caps |= drv_data->caps[ctrl_id];
> +
> +       if (host->pdata->caps2)
> +               mmc->caps2 = host->pdata->caps2;
> +
> +       /* Process SDIO IRQs through the sdio_irq_work. */
> +       if (mmc->caps & MMC_CAP_SDIO_IRQ)
> +               mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
> +
> +       return 0;
> +}
> +
>  static int dw_mci_init_slot(struct dw_mci *host)
>  {
>         struct mmc_host *mmc;
>         struct dw_mci_slot *slot;
> -       const struct dw_mci_drv_data *drv_data = host->drv_data;
> -       int ctrl_id, ret;
> +       int ret;
>         u32 freq[2];
>
>         mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev);
> @@ -2796,38 +2834,13 @@ static int dw_mci_init_slot(struct dw_mci *host)
>         if (!mmc->ocr_avail)
>                 mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
>
> -       if (host->pdata->caps)
> -               mmc->caps = host->pdata->caps;
> -
> -       /*
> -        * Support MMC_CAP_ERASE by default.
> -        * It needs to use trim/discard/erase commands.
> -        */
> -       mmc->caps |= MMC_CAP_ERASE;
> -
> -       if (host->pdata->pm_caps)
> -               mmc->pm_caps = host->pdata->pm_caps;
> -
> -       if (host->dev->of_node) {
> -               ctrl_id = of_alias_get_id(host->dev->of_node, "mshc");
> -               if (ctrl_id < 0)
> -                       ctrl_id = 0;
> -       } else {
> -               ctrl_id = to_platform_device(host->dev)->id;
> -       }
> -       if (drv_data && drv_data->caps)
> -               mmc->caps |= drv_data->caps[ctrl_id];
> -
> -       if (host->pdata->caps2)
> -               mmc->caps2 = host->pdata->caps2;
> -
>         ret = mmc_of_parse(mmc);
>         if (ret)
>                 goto err_host_allocated;
>
> -       /* Process SDIO IRQs through the sdio_irq_work. */
> -       if (mmc->caps & MMC_CAP_SDIO_IRQ)
> -               mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
> +       ret = dw_mci_init_slot_caps(slot);
> +       if (ret)
> +               goto err_host_allocated;
>
>         /* Useful defaults if platform data is unset. */
>         if (host->use_dma == TRANS_MODE_IDMAC) {
> --
> 1.9.1
>
>
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