diff options
| author |   Sascha Hauer <s.hauer@pengutronix.de> | 2013-12-05 14:34:51 +0100 |
|---|---|---|
| committer |   Chris Ball <chris@printf.net> | 2014-01-13 12:48:21 -0500 |
| commit | d1a1dfb2f5dad3fbcea71b95791d525f4775cff5 (patch) | |
| tree | 8ebc191e36983487a348d11645d2eaf46826ddb5 /drivers/mmc/host/mxs-mmc.c | |
| parent | mmc: mxs: use mmc_gpio_get_ro for detecting read-only status (diff) | |
| download | linux-dev-d1a1dfb2f5dad3fbcea71b95791d525f4775cff5.tar.xz linux-dev-d1a1dfb2f5dad3fbcea71b95791d525f4775cff5.zip | |
mmc: mxs: use mmc_of_parse to parse devicetree properties
Use generic helper function. This also adds support for the cd-gpios and
max-frequency devicetree properties.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/mxs-mmc.c')
| -rw-r--r-- | drivers/mmc/host/mxs-mmc.c | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 13016e2cccad..073e871a0fc8 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -76,7 +76,11 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc) { struct mxs_mmc_host *host = mmc_priv(mmc); struct mxs_ssp *ssp = &host->ssp; - int present; + int present, ret; + + ret = mmc_gpio_get_cd(mmc); + if (ret >= 0) + return ret; present = !(readl(ssp->base + HW_SSP_STATUS(ssp)) & BM_SSP_STATUS_CARD_DETECT); @@ -564,15 +568,12 @@ static int mxs_mmc_probe(struct platform_device *pdev) { const struct of_device_id *of_id = of_match_device(mxs_mmc_dt_ids, &pdev->dev); - struct device_node *np = pdev->dev.of_node; struct mxs_mmc_host *host; struct mmc_host *mmc; struct resource *iores; - int ret = 0, irq_err, gpio; + int ret = 0, irq_err; struct regulator *reg_vmmc; - enum of_gpio_flags flags; struct mxs_ssp *ssp; - u32 bus_width = 0; iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq_err = platform_get_irq(pdev, 0); @@ -633,29 +634,13 @@ static int mxs_mmc_probe(struct platform_device *pdev) mmc->caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SDIO_IRQ | MMC_CAP_NEEDS_POLL; - of_property_read_u32(np, "bus-width", &bus_width); - if (bus_width == 4) - mmc->caps |= MMC_CAP_4_BIT_DATA; - else if (bus_width == 8) - mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA; - if (of_property_read_bool(np, "broken-cd")) - mmc->caps |= MMC_CAP_NEEDS_POLL; - if (of_property_read_bool(np, "non-removable")) - mmc->caps |= MMC_CAP_NONREMOVABLE; - gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags); - if (gpio_is_valid(gpio)) { - ret = mmc_gpio_request_ro(mmc, gpio); - if (ret) - goto out_clk_disable; - if (!(flags & OF_GPIO_ACTIVE_LOW)) - mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH; - } - - if (of_property_read_bool(np, "cd-inverted")) - mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH; - mmc->f_min = 400000; mmc->f_max = 288000000; + + ret = mmc_of_parse(mmc); + if (ret) + goto out_clk_disable; + mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; mmc->max_segs = 52; |