On Mon, Nov 03, 2014 at 01:12:59PM +0200, Timo Kokkonen wrote:
> Add support for non-removable slots which have no card detection GPIO
> and which should not be polled for a card change.
>
> Signed-off-by: Timo Kokkonen <timo.kokkonen@xxxxxxxxxx>
Acked-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>
Thanks
> ---
> drivers/mmc/host/atmel-mci.c | 11 +++++++++--
> include/linux/atmel-mci.h | 2 ++
> 2 files changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> index 77250d4..4de1a31 100644
> --- a/drivers/mmc/host/atmel-mci.c
> +++ b/drivers/mmc/host/atmel-mci.c
> @@ -560,6 +560,9 @@ atmci_of_init(struct platform_device *pdev)
> pdata->slot[slot_id].detect_is_active_high =
> of_property_read_bool(cnp, "cd-inverted");
>
> + pdata->slot[slot_id].non_removable =
> + of_property_read_bool(cnp, "non-removable");
> +
> pdata->slot[slot_id].wp_pin =
> of_get_named_gpio(cnp, "wp-gpios", 0);
> }
> @@ -2206,8 +2209,12 @@ static int __init atmci_init_slot(struct atmel_mci *host,
> }
> }
>
> - if (!gpio_is_valid(slot->detect_pin))
> - mmc->caps |= MMC_CAP_NEEDS_POLL;
> + if (!gpio_is_valid(slot->detect_pin)) {
> + if (slot_data->non_removable)
> + mmc->caps |= MMC_CAP_NONREMOVABLE;
> + else
> + mmc->caps |= MMC_CAP_NEEDS_POLL;
> + }
>
> if (gpio_is_valid(slot->wp_pin)) {
> if (devm_gpio_request(&host->pdev->dev, slot->wp_pin,
> diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
> index 91b77f8..9177947 100644
> --- a/include/linux/atmel-mci.h
> +++ b/include/linux/atmel-mci.h
> @@ -11,6 +11,7 @@
> * @detect_pin: GPIO pin wired to the card detect switch
> * @wp_pin: GPIO pin wired to the write protect sensor
> * @detect_is_active_high: The state of the detect pin when it is active
> + * @non_removable: The slot is not removable, only detect once
> *
> * If a given slot is not present on the board, @bus_width should be
> * set to 0. The other fields are ignored in this case.
> @@ -26,6 +27,7 @@ struct mci_slot_pdata {
> int detect_pin;
> int wp_pin;
> bool detect_is_active_high;
> + bool non_removable;
> };
>
> /**
> --
> 1.9.1
>
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