diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/tmio_mmc_pio.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 6c07e70a4a45..b94cb1666295 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -944,17 +944,25 @@ static const struct mmc_host_ops tmio_mmc_ops = { .enable_sdio_irq = tmio_mmc_enable_sdio_irq, }; -static void tmio_mmc_init_ocr(struct tmio_mmc_host *host) +static int tmio_mmc_init_ocr(struct tmio_mmc_host *host) { struct tmio_mmc_data *pdata = host->pdata; struct mmc_host *mmc = host->mmc; mmc_regulator_get_supply(mmc); + /* use ocr_mask if no regulator */ if (!mmc->ocr_avail) - mmc->ocr_avail = pdata->ocr_mask ? : MMC_VDD_32_33 | MMC_VDD_33_34; - else if (pdata->ocr_mask) - dev_warn(mmc_dev(mmc), "Platform OCR mask is ignored\n"); + mmc->ocr_avail = pdata->ocr_mask; + + /* + * try again. + * There is possibility that regulator has not been probed + */ + if (!mmc->ocr_avail) + return -EPROBE_DEFER; + + return 0; } static void tmio_mmc_of_parse(struct platform_device *pdev, @@ -1008,6 +1016,10 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host, /* SD control register space size is 0x200, 0x400 for bus_shift=1 */ _host->bus_shift = resource_size(res_ctl) >> 10; + ret = tmio_mmc_init_ocr(_host); + if (ret < 0) + goto host_free; + _host->ctl = ioremap(res_ctl->start, resource_size(res_ctl)); if (!_host->ctl) { ret = -ENOMEM; @@ -1023,7 +1035,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host, mmc->max_segs; mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; mmc->max_seg_size = mmc->max_req_size; - tmio_mmc_init_ocr(_host); _host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD || mmc->caps & MMC_CAP_NEEDS_POLL || |