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    Subject[PATCH v3 12/36] mtd: st_spi_fsm: Fetch platform specific configurations
    Date
    All supported platforms are able to pass specific configurations via
    the Device Tree on boot. Here we add a function which is to be called
    during the probing process which will extract them, or make other
    assumptions based on capabilities provided.

    Signed-off-by: Lee Jones <lee.jones@linaro.org>
    ---
    drivers/mtd/devices/st_spi_fsm.c | 11 +++++++++++
    1 file changed, 11 insertions(+)

    diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
    index 5f21d14..1f54983 100644
    --- a/drivers/mtd/devices/st_spi_fsm.c
    +++ b/drivers/mtd/devices/st_spi_fsm.c
    @@ -273,6 +273,15 @@ static int stfsm_init(struct stfsm *fsm)
    return 0;
    }

    +static void stfsm_fetch_platform_configs(struct platform_device *pdev)
    +{
    + struct stfsm *fsm = platform_get_drvdata(pdev);
    + struct flash_info *info = fsm->info;
    +
    + if (info->sector_size * info->n_sectors > 0xFFFFFF)
    + info->flags |= FLASH_FLAG_32BIT_ADDR;
    +}
    +
    static int stfsm_probe(struct platform_device *pdev)
    {
    struct device_node *np = pdev->dev.of_node;
    @@ -331,6 +340,8 @@ static int stfsm_probe(struct platform_device *pdev)

    platform_set_drvdata(pdev, fsm);

    + stfsm_fetch_platform_configs(pdev);
    +
    fsm->mtd.dev.parent = &pdev->dev;
    fsm->mtd.type = MTD_NORFLASH;
    fsm->mtd.writesize = 4;
    --
    1.8.3.2


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