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Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/omap.c152
1 files changed, 1 insertions, 151 deletions
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index adf679a157e..7d17c899c39 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -95,8 +95,6 @@
* when the cover switch is open */
#define OMAP_MMC_SWITCH_POLL_DELAY 500
-static int mmc_omap_enable_poll = 1;
-
struct mmc_omap_host {
int initialized;
int suspended;
@@ -133,62 +131,11 @@ struct mmc_omap_host {
short power_pin;
short wp_pin;
- int switch_pin;
struct work_struct switch_work;
struct timer_list switch_timer;
int switch_last_state;
};
-static inline int
-mmc_omap_cover_is_open(struct mmc_omap_host *host)
-{
- if (host->switch_pin < 0)
- return 0;
- return omap_get_gpio_datain(host->switch_pin);
-}
-
-static ssize_t
-mmc_omap_show_cover_switch(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct mmc_omap_host *host = dev_get_drvdata(dev);
-
- return sprintf(buf, "%s\n", mmc_omap_cover_is_open(host) ? "open" :
- "closed");
-}
-
-static DEVICE_ATTR(cover_switch, S_IRUGO, mmc_omap_show_cover_switch, NULL);
-
-static ssize_t
-mmc_omap_show_enable_poll(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%d\n", mmc_omap_enable_poll);
-}
-
-static ssize_t
-mmc_omap_store_enable_poll(struct device *dev,
- struct device_attribute *attr, const char *buf,
- size_t size)
-{
- int enable_poll;
-
- if (sscanf(buf, "%10d", &enable_poll) != 1)
- return -EINVAL;
-
- if (enable_poll != mmc_omap_enable_poll) {
- struct mmc_omap_host *host = dev_get_drvdata(dev);
-
- mmc_omap_enable_poll = enable_poll;
- if (enable_poll && host->switch_pin >= 0)
- schedule_work(&host->switch_work);
- }
- return size;
-}
-
-static DEVICE_ATTR(enable_poll, 0664,
- mmc_omap_show_enable_poll, mmc_omap_store_enable_poll);
-
static void
mmc_omap_start_command(struct mmc_omap_host *host, struct mmc_command *cmd)
{
@@ -495,8 +442,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
if (status & OMAP_MMC_STAT_CMD_TOUT) {
/* Timeouts are routine with some commands */
if (host->cmd) {
- if (!mmc_omap_cover_is_open(host))
- dev_err(mmc_dev(host->mmc),
+ dev_err(mmc_dev(host->mmc),
"command timeout, CMD %d\n",
host->cmd->opcode);
host->cmd->error = -ETIMEDOUT;
@@ -544,54 +490,6 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static irqreturn_t mmc_omap_switch_irq(int irq, void *dev_id)
-{
- struct mmc_omap_host *host = (struct mmc_omap_host *) dev_id;
-
- schedule_work(&host->switch_work);
-
- return IRQ_HANDLED;
-}
-
-static void mmc_omap_switch_timer(unsigned long arg)
-{
- struct mmc_omap_host *host = (struct mmc_omap_host *) arg;
-
- schedule_work(&host->switch_work);
-}
-
-static void mmc_omap_switch_handler(struct work_struct *work)
-{
- struct mmc_omap_host *host = container_of(work, struct mmc_omap_host, switch_work);
- struct mmc_card *card;
- static int complained = 0;
- int cards = 0, cover_open;
-
- if (host->switch_pin == -1)
- return;
- cover_open = mmc_omap_cover_is_open(host);
- if (cover_open != host->switch_last_state) {
- kobject_uevent(&host->dev->kobj, KOBJ_CHANGE);
- host->switch_last_state = cover_open;
- }
- mmc_detect_change(host->mmc, 0);
- list_for_each_entry(card, &host->mmc->cards, node) {
- if (mmc_card_present(card))
- cards++;
- }
- if (mmc_omap_cover_is_open(host)) {
- if (!complained) {
- dev_info(mmc_dev(host->mmc), "cover is open\n");
- complained = 1;
- }
- if (mmc_omap_enable_poll)
- mod_timer(&host->switch_timer, jiffies +
- msecs_to_jiffies(OMAP_MMC_SWITCH_POLL_DELAY));
- } else {
- complained = 0;
- }
-}
-
/* Prepare to transfer the next segment of a scatterlist */
static void
mmc_omap_prepare_dma(struct mmc_omap_host *host, struct mmc_data *data)
@@ -1057,7 +955,6 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
* the card detect sensing.
*/
host->power_pin = minfo->power_pin;
- host->switch_pin = minfo->switch_pin;
host->wp_pin = minfo->wp_pin;
host->use_dma = 1;
host->dma_ch = -1;
@@ -1102,48 +999,10 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
host->dev = &pdev->dev;
platform_set_drvdata(pdev, host);
- if (host->switch_pin >= 0) {
- INIT_WORK(&host->switch_work, mmc_omap_switch_handler);
- init_timer(&host->switch_timer);
- host->switch_timer.function = mmc_omap_switch_timer;
- host->switch_timer.data = (unsigned long) host;
- if (omap_request_gpio(host->switch_pin) != 0) {
- dev_warn(mmc_dev(host->mmc), "Unable to get GPIO pin for MMC cover switch\n");
- host->switch_pin = -1;
- goto no_switch;
- }
-
- omap_set_gpio_direction(host->switch_pin, 1);
- ret = request_irq(OMAP_GPIO_IRQ(host->switch_pin),
- mmc_omap_switch_irq, IRQF_TRIGGER_RISING, DRIVER_NAME, host);
- if (ret) {
- dev_warn(mmc_dev(host->mmc), "Unable to get IRQ for MMC cover switch\n");
- omap_free_gpio(host->switch_pin);
- host->switch_pin = -1;
- goto no_switch;
- }
- ret = device_create_file(&pdev->dev, &dev_attr_cover_switch);
- if (ret == 0) {
- ret = device_create_file(&pdev->dev, &dev_attr_enable_poll);
- if (ret != 0)
- device_remove_file(&pdev->dev, &dev_attr_cover_switch);
- }
- if (ret) {
- dev_warn(mmc_dev(host->mmc), "Unable to create sysfs attributes\n");
- free_irq(OMAP_GPIO_IRQ(host->switch_pin), host);
- omap_free_gpio(host->switch_pin);
- host->switch_pin = -1;
- goto no_switch;
- }
- if (mmc_omap_enable_poll && mmc_omap_cover_is_open(host))
- schedule_work(&host->switch_work);
- }
-
mmc_add_host(mmc);
return 0;
-no_switch:
/* FIXME: Free other resources too. */
if (host) {
if (host->iclk && !IS_ERR(host->iclk))
@@ -1182,15 +1041,6 @@ static int mmc_omap_remove(struct platform_device *pdev)
if (host->power_pin >= 0)
omap_free_gpio(host->power_pin);
- if (host->switch_pin >= 0) {
- device_remove_file(&pdev->dev, &dev_attr_enable_poll);
- device_remove_file(&pdev->dev, &dev_attr_cover_switch);
- free_irq(OMAP_GPIO_IRQ(host->switch_pin), host);
- omap_free_gpio(host->switch_pin);
- host->switch_pin = -1;
- del_timer_sync(&host->switch_timer);
- flush_scheduled_work();
- }
if (host->iclk && !IS_ERR(host->iclk))
clk_put(host->iclk);
if (host->fclk && !IS_ERR(host->fclk))
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-02 20:43:49 +0000