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MMC: S3C24XX: Allow card-detect on non-IRQ capable pin

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Add support to the S3C24XX MMC driver to have the card detect be on
a pin that is not IRQ capable.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Ben Dooks 2008-06-30 22:40:32 +01:00 committed by Pierre Ossman
parent 7c14450ed6
commit 55d70f5a7b
1 changed files with 17 additions and 11 deletions
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28
drivers/mmc/host/s3cmci.c
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@ -1150,8 +1150,6 @@ static int __devinit s3cmci_probe(struct platform_device *pdev, int is2440)
host->pio_active = XFER_NONE;
host->dma = S3CMCI_DMA;
host->irq_cd = s3c2410_gpio_getirq(host->pdata->gpio_detect);
s3c2410_gpio_cfgpin(host->pdata->gpio_detect, S3C2410_GPIO_IRQ);
host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!host->mem) {
@ -1197,14 +1195,20 @@ static int __devinit s3cmci_probe(struct platform_device *pdev, int is2440)
disable_irq(host->irq);
s3c2410_gpio_cfgpin(host->pdata->gpio_detect, S3C2410_GPIO_IRQ);
set_irq_type(host->irq_cd, IRQT_BOTHEDGE);
host->irq_cd = s3c2410_gpio_getirq(host->pdata->gpio_detect);
if (request_irq(host->irq_cd, s3cmci_irq_cd, 0, DRIVER_NAME, host)) {
dev_err(&pdev->dev,
"failed to request card detect interrupt.\n");
ret = -ENOENT;
goto probe_free_irq;
if (host->irq_cd >= 0) {
if (request_irq(host->irq_cd, s3cmci_irq_cd,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
DRIVER_NAME, host)) {
dev_err(&pdev->dev, "can't get card detect irq.\n");
ret = -ENOENT;
goto probe_free_irq;
}
} else {
dev_warn(&pdev->dev, "host detect has no irq available\n");
s3c2410_gpio_cfgpin(host->pdata->gpio_detect,
S3C2410_GPIO_INPUT);
}
if (host->pdata->gpio_wprotect)
@ -1273,7 +1277,8 @@ static int __devinit s3cmci_probe(struct platform_device *pdev, int is2440)
clk_put(host->clk);
probe_free_irq_cd:
free_irq(host->irq_cd, host);
if (host->irq_cd >= 0)
free_irq(host->irq_cd, host);
probe_free_irq:
free_irq(host->irq, host);
@ -1303,7 +1308,8 @@ static int __devexit s3cmci_remove(struct platform_device *pdev)
tasklet_disable(&host->pio_tasklet);
s3c2410_dma_free(S3CMCI_DMA, &s3cmci_dma_client);
free_irq(host->irq_cd, host);
if (host->irq_cd >= 0)
free_irq(host->irq_cd, host);
free_irq(host->irq, host);
iounmap(host->base);