Re: [PATCH v4 3/7] mmc: dw_mmc: remove unused member variable.

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On 3 March 2014 03:36, Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote:
> Since using the device-tree, didn't use the callback pointer.
> So removed the unused callback pointer.
> When the set_power callback is used, it should be added in future.

I guess all SOCs using dw_mmc has moved to DT then!?

Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>

>
> Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
> ---
> Changelog V4:
>         - None
> Changelog V3:
>         - None
> Changelog V2:
>         - None
>
>  drivers/mmc/host/dw_mmc.c  |   33 +++------------------------------
>  include/linux/mmc/dw_mmc.h |   14 --------------
>  2 files changed, 3 insertions(+), 44 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 3970fc3..9bac3ed 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -850,8 +850,6 @@ static void __dw_mci_start_request(struct dw_mci *host,
>         u32 cmdflags;
>
>         mrq = slot->mrq;
> -       if (host->pdata->select_slot)
> -               host->pdata->select_slot(slot->id);
>
>         host->cur_slot = slot;
>         host->mrq = mrq;
> @@ -985,17 +983,11 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
>         switch (ios->power_mode) {
>         case MMC_POWER_UP:
>                 set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
> -               /* Power up slot */
> -               if (slot->host->pdata->setpower)
> -                       slot->host->pdata->setpower(slot->id, mmc->ocr_avail);
>                 regs = mci_readl(slot->host, PWREN);
>                 regs |= (1 << slot->id);
>                 mci_writel(slot->host, PWREN, regs);
>                 break;
>         case MMC_POWER_OFF:
> -               /* Power down slot */
> -               if (slot->host->pdata->setpower)
> -                       slot->host->pdata->setpower(slot->id, 0);
>                 regs = mci_readl(slot->host, PWREN);
>                 regs &= ~(1 << slot->id);
>                 mci_writel(slot->host, PWREN, regs);
> @@ -1009,13 +1001,10 @@ static int dw_mci_get_ro(struct mmc_host *mmc)
>  {
>         int read_only;
>         struct dw_mci_slot *slot = mmc_priv(mmc);
> -       struct dw_mci_board *brd = slot->host->pdata;
>
>         /* Use platform get_ro function, else try on board write protect */
>         if (slot->quirks & DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT)
>                 read_only = 0;
> -       else if (brd->get_ro)
> -               read_only = brd->get_ro(slot->id);
>         else if (gpio_is_valid(slot->wp_gpio))
>                 read_only = gpio_get_value(slot->wp_gpio);
>         else
> @@ -1039,8 +1028,6 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
>         /* Use platform get_cd function, else try onboard card detect */
>         if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
>                 present = 1;
> -       else if (brd->get_cd)
> -               present = !brd->get_cd(slot->id);
>         else if (!IS_ERR_VALUE(gpio_cd))
>                 present = gpio_cd;
>         else
> @@ -2138,17 +2125,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
>                 mmc->f_max = freq[1];
>         }
>
> -       if (host->pdata->get_ocr)
> -               mmc->ocr_avail = host->pdata->get_ocr(id);
> -       else
> -               mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
> -
> -       /*
> -        * Start with slot power disabled, it will be enabled when a card
> -        * is detected.
> -        */
> -       if (host->pdata->setpower)
> -               host->pdata->setpower(id, 0);
> +       mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
>
>         if (host->pdata->caps)
>                 mmc->caps = host->pdata->caps;
> @@ -2217,10 +2194,6 @@ err_setup_bus:
>
>  static void dw_mci_cleanup_slot(struct dw_mci_slot *slot, unsigned int id)
>  {
> -       /* Shutdown detect IRQ */
> -       if (slot->host->pdata->exit)
> -               slot->host->pdata->exit(id);
> -
>         /* Debugfs stuff is cleaned up by mmc core */
>         mmc_remove_host(slot->mmc);
>         slot->host->slot[id] = NULL;
> @@ -2395,9 +2368,9 @@ int dw_mci_probe(struct dw_mci *host)
>                 }
>         }
>
> -       if (!host->pdata->select_slot && host->pdata->num_slots > 1) {
> +       if (host->pdata->num_slots > 1) {
>                 dev_err(host->dev,
> -                       "Platform data must supply select_slot function\n");
> +                       "Platform data must supply num_slots.\n");
>                 return -ENODEV;
>         }
>
> diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
> index 6ce7d2c..babaea9 100644
> --- a/include/linux/mmc/dw_mmc.h
> +++ b/include/linux/mmc/dw_mmc.h
> @@ -248,20 +248,6 @@ struct dw_mci_board {
>         /* delay in mS before detecting cards after interrupt */
>         u32 detect_delay_ms;
>
> -       int (*init)(u32 slot_id, irq_handler_t , void *);
> -       int (*get_ro)(u32 slot_id);
> -       int (*get_cd)(u32 slot_id);
> -       int (*get_ocr)(u32 slot_id);
> -       int (*get_bus_wd)(u32 slot_id);
> -       /*
> -        * Enable power to selected slot and set voltage to desired level.
> -        * Voltage levels are specified using MMC_VDD_xxx defines defined
> -        * in linux/mmc/host.h file.
> -        */
> -       void (*setpower)(u32 slot_id, u32 volt);
> -       void (*exit)(u32 slot_id);
> -       void (*select_slot)(u32 slot_id);
> -
>         struct dw_mci_dma_ops *dma_ops;
>         struct dma_pdata *data;
>         struct block_settings *blk_settings;
> --
> 1.7.9.5
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