[PATCH 3/3] mmc: omap_hsmmc: use mmc_of_parse to parse common mmc configuration.

From: NeilBrown
Date: Fri Nov 07 2014 - 18:55:34 EST


This ensures that all standard options are available to hsmmc,
In particular, I need cap-power-off-card.

Signed-off-by: NeilBrown <neilb@xxxxxxx>
---
drivers/mmc/host/omap_hsmmc.c | 33 ++++++++-------------------------
1 file changed, 8 insertions(+), 25 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 3fe02cf077ec..06362c1ee31d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1903,13 +1903,6 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
{
struct omap_mmc_platform_data *pdata;
struct device_node *np = dev->of_node;
- u32 bus_width, max_freq;
- int cd_gpio, wp_gpio;
-
- cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
- wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
- if (cd_gpio == -EPROBE_DEFER || wp_gpio == -EPROBE_DEFER)
- return ERR_PTR(-EPROBE_DEFER);

pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@@ -1920,34 +1913,20 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)

/* This driver only supports 1 slot */
pdata->nr_slots = 1;
- pdata->slots[0].switch_pin = cd_gpio;
- pdata->slots[0].gpio_wp = wp_gpio;
+ pdata->slots[0].switch_pin = -EINVAL;
+ pdata->slots[0].gpio_wp = -EINVAL;

if (of_find_property(np, "ti,non-removable", NULL)) {
pdata->slots[0].nonremovable = true;
pdata->slots[0].no_regulator_off_init = true;
}
- of_property_read_u32(np, "bus-width", &bus_width);
- if (bus_width == 4)
- pdata->slots[0].caps |= MMC_CAP_4_BIT_DATA;
- else if (bus_width == 8)
- pdata->slots[0].caps |= MMC_CAP_8_BIT_DATA;

if (of_find_property(np, "ti,needs-special-reset", NULL))
pdata->slots[0].features |= HSMMC_HAS_UPDATED_RESET;

- if (!of_property_read_u32(np, "max-frequency", &max_freq))
- pdata->max_freq = max_freq;
-
if (of_find_property(np, "ti,needs-special-hs-handling", NULL))
pdata->slots[0].features |= HSMMC_HAS_HSPE_SUPPORT;

- if (of_find_property(np, "keep-power-in-suspend", NULL))
- pdata->slots[0].pm_caps |= MMC_PM_KEEP_POWER;
-
- if (of_find_property(np, "enable-sdio-wakeup", NULL))
- pdata->slots[0].pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
-
return pdata;
}
#else
@@ -2014,6 +1993,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (ret)
goto err1;

+ ret = mmc_of_parse(mmc);
+ if (ret)
+ goto err1;
+
host = mmc_priv(mmc);
host->mmc = mmc;
host->pdata = pdata;
@@ -2039,7 +2022,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)

if (pdata->max_freq > 0)
mmc->f_max = pdata->max_freq;
- else
+ else if (mmc->f_max == 0)
mmc->f_max = OMAP_MMC_MAX_CLOCK;

spin_lock_init(&host->irq_lock);
@@ -2093,7 +2076,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (mmc_slot(host).nonremovable)
mmc->caps |= MMC_CAP_NONREMOVABLE;

- mmc->pm_caps = mmc_slot(host).pm_caps;
+ mmc->pm_caps |= mmc_slot(host).pm_caps;

omap_hsmmc_conf_bus_power(host);



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