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path: root/drivers/mmc/host/omap_hsmmc.c
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Diffstat (limited to 'drivers/mmc/host/omap_hsmmc.c')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c150
1 files changed, 21 insertions, 129 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 7c71dcdcba8b..f84cfb01716d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -36,6 +36,7 @@
#include <linux/mmc/host.h>
#include <linux/mmc/core.h>
#include <linux/mmc/mmc.h>
+#include <linux/mmc/slot-gpio.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/gpio.h>
@@ -251,55 +252,24 @@ static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host);
static int omap_hsmmc_card_detect(struct device *dev)
{
struct omap_hsmmc_host *host = dev_get_drvdata(dev);
- struct omap_hsmmc_platform_data *mmc = host->pdata;
- /* NOTE: assumes card detect signal is active-low */
- return !gpio_get_value_cansleep(mmc->switch_pin);
+ return mmc_gpio_get_cd(host->mmc);
}
static int omap_hsmmc_get_wp(struct device *dev)
{
struct omap_hsmmc_host *host = dev_get_drvdata(dev);
- struct omap_hsmmc_platform_data *mmc = host->pdata;
- /* NOTE: assumes write protect signal is active-high */
- return gpio_get_value_cansleep(mmc->gpio_wp);
+ return mmc_gpio_get_ro(host->mmc);
}
static int omap_hsmmc_get_cover_state(struct device *dev)
{
struct omap_hsmmc_host *host = dev_get_drvdata(dev);
- struct omap_hsmmc_platform_data *mmc = host->pdata;
- /* NOTE: assumes card detect signal is active-low */
- return !gpio_get_value_cansleep(mmc->switch_pin);
+ return mmc_gpio_get_cd(host->mmc);
}
-#ifdef CONFIG_PM
-
-static int omap_hsmmc_suspend_cdirq(struct device *dev)
-{
- struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-
- disable_irq(host->card_detect_irq);
- return 0;
-}
-
-static int omap_hsmmc_resume_cdirq(struct device *dev)
-{
- struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-
- enable_irq(host->card_detect_irq);
- return 0;
-}
-
-#else
-
-#define omap_hsmmc_suspend_cdirq NULL
-#define omap_hsmmc_resume_cdirq NULL
-
-#endif
-
#ifdef CONFIG_REGULATOR
static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
@@ -464,7 +434,10 @@ static inline int omap_hsmmc_have_reg(void)
#endif
-static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
+static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id);
+
+static int omap_hsmmc_gpio_init(struct mmc_host *mmc,
+ struct omap_hsmmc_host *host,
struct omap_hsmmc_platform_data *pdata)
{
int ret;
@@ -477,46 +450,24 @@ static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
host->card_detect = omap_hsmmc_card_detect;
host->card_detect_irq =
gpio_to_irq(pdata->switch_pin);
- ret = gpio_request(pdata->switch_pin, "mmc_cd");
+ mmc_gpio_set_cd_isr(mmc, omap_hsmmc_detect);
+ ret = mmc_gpio_request_cd(mmc, pdata->switch_pin, 0);
if (ret)
return ret;
- ret = gpio_direction_input(pdata->switch_pin);
- if (ret)
- goto err_free_sp;
} else {
pdata->switch_pin = -EINVAL;
}
if (gpio_is_valid(pdata->gpio_wp)) {
host->get_ro = omap_hsmmc_get_wp;
- ret = gpio_request(pdata->gpio_wp, "mmc_wp");
- if (ret)
- goto err_free_cd;
- ret = gpio_direction_input(pdata->gpio_wp);
+ ret = mmc_gpio_request_ro(mmc, pdata->gpio_wp);
if (ret)
- goto err_free_wp;
+ return ret;
} else {
pdata->gpio_wp = -EINVAL;
}
return 0;
-
-err_free_wp:
- gpio_free(pdata->gpio_wp);
-err_free_cd:
- if (gpio_is_valid(pdata->switch_pin))
-err_free_sp:
- gpio_free(pdata->switch_pin);
- return ret;
-}
-
-static void omap_hsmmc_gpio_free(struct omap_hsmmc_host *host,
- struct omap_hsmmc_platform_data *pdata)
-{
- if (gpio_is_valid(pdata->gpio_wp))
- gpio_free(pdata->gpio_wp);
- if (gpio_is_valid(pdata->switch_pin))
- gpio_free(pdata->switch_pin);
}
/*
@@ -1978,13 +1929,6 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
{
struct omap_hsmmc_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)
@@ -1993,34 +1937,20 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
if (of_find_property(np, "ti,dual-volt", NULL))
pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
- pdata->switch_pin = cd_gpio;
- pdata->gpio_wp = wp_gpio;
+ pdata->switch_pin = -EINVAL;
+ pdata->gpio_wp = -EINVAL;
if (of_find_property(np, "ti,non-removable", NULL)) {
pdata->nonremovable = true;
pdata->no_regulator_off_init = true;
}
- of_property_read_u32(np, "bus-width", &bus_width);
- if (bus_width == 4)
- pdata->caps |= MMC_CAP_4_BIT_DATA;
- else if (bus_width == 8)
- pdata->caps |= MMC_CAP_8_BIT_DATA;
if (of_find_property(np, "ti,needs-special-reset", NULL))
pdata->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->features |= HSMMC_HAS_HSPE_SUPPORT;
- if (of_find_property(np, "keep-power-in-suspend", NULL))
- pdata->pm_caps |= MMC_PM_KEEP_POWER;
-
- if (of_find_property(np, "enable-sdio-wakeup", NULL))
- pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
-
return pdata;
}
#else
@@ -2078,6 +2008,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
goto err;
}
+ ret = mmc_of_parse(mmc);
+ if (ret)
+ goto err1;
+
host = mmc_priv(mmc);
host->mmc = mmc;
host->pdata = pdata;
@@ -2091,7 +2025,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
host->next_data.cookie = 1;
host->pbias_enabled = 0;
- ret = omap_hsmmc_gpio_init(host, pdata);
+ ret = omap_hsmmc_gpio_init(mmc, host, pdata);
if (ret)
goto err_gpio;
@@ -2106,7 +2040,7 @@ 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);
@@ -2160,7 +2094,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (mmc_pdata(host)->nonremovable)
mmc->caps |= MMC_CAP_NONREMOVABLE;
- mmc->pm_caps = mmc_pdata(host)->pm_caps;
+ mmc->pm_caps |= mmc_pdata(host)->pm_caps;
omap_hsmmc_conf_bus_power(host);
@@ -2222,22 +2156,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
- /* Request IRQ for card detect */
- if (host->card_detect_irq) {
- ret = devm_request_threaded_irq(&pdev->dev,
- host->card_detect_irq,
- NULL, omap_hsmmc_detect,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- mmc_hostname(mmc), host);
- if (ret) {
- dev_err(mmc_dev(host->mmc),
- "Unable to grab MMC CD IRQ\n");
- goto err_irq_cd;
- }
- host->suspend = omap_hsmmc_suspend_cdirq;
- host->resume = omap_hsmmc_resume_cdirq;
- }
-
omap_hsmmc_disable_irq(host);
/*
@@ -2276,7 +2194,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
err_slot_name:
mmc_remove_host(mmc);
-err_irq_cd:
if (host->use_reg)
omap_hsmmc_reg_put(host);
err_irq:
@@ -2289,7 +2206,6 @@ err_irq:
if (host->dbclk)
clk_disable_unprepare(host->dbclk);
err1:
- omap_hsmmc_gpio_free(host, pdata);
err_gpio:
mmc_free_host(mmc);
err:
@@ -2315,32 +2231,12 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
if (host->dbclk)
clk_disable_unprepare(host->dbclk);
- omap_hsmmc_gpio_free(host, host->pdata);
mmc_free_host(host->mmc);
return 0;
}
#ifdef CONFIG_PM
-static int omap_hsmmc_prepare(struct device *dev)
-{
- struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-
- if (host->suspend)
- return host->suspend(dev);
-
- return 0;
-}
-
-static void omap_hsmmc_complete(struct device *dev)
-{
- struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-
- if (host->resume)
- host->resume(dev);
-
-}
-
static int omap_hsmmc_suspend(struct device *dev)
{
struct omap_hsmmc_host *host = dev_get_drvdata(dev);
@@ -2398,8 +2294,6 @@ static int omap_hsmmc_resume(struct device *dev)
}
#else
-#define omap_hsmmc_prepare NULL
-#define omap_hsmmc_complete NULL
#define omap_hsmmc_suspend NULL
#define omap_hsmmc_resume NULL
#endif
@@ -2484,8 +2378,6 @@ static int omap_hsmmc_runtime_resume(struct device *dev)
static struct dev_pm_ops omap_hsmmc_dev_pm_ops = {
.suspend = omap_hsmmc_suspend,
.resume = omap_hsmmc_resume,
- .prepare = omap_hsmmc_prepare,
- .complete = omap_hsmmc_complete,
.runtime_suspend = omap_hsmmc_runtime_suspend,
.runtime_resume = omap_hsmmc_runtime_resume,
};
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-15 04:44:28 +0300