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Commit 55d70f5a authored by Ben Dooks's avatar Ben Dooks Committed by Pierre Ossman
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MMC: S3C24XX: Allow card-detect on non-IRQ capable pin 



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

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent 7c14450e

drivers/mmc/host/s3cmci.c

+17 −11
Original line number Diff line number Diff line
@@ -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) {
@@ -1197,15 +1195,21 @@ 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");

	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)

		s3c2410_gpio_cfgpin(host->pdata->gpio_wprotect,
@@ -1273,6 +1277,7 @@ static int __devinit s3cmci_probe(struct platform_device *pdev, int is2440) 
	clk_put(host->clk);



 probe_free_irq_cd:

	if (host->irq_cd >= 0)

		free_irq(host->irq_cd, host);



 probe_free_irq:
@@ -1303,6 +1308,7 @@ static int __devexit s3cmci_remove(struct platform_device *pdev) 
	tasklet_disable(&host->pio_tasklet);

	s3c2410_dma_free(S3CMCI_DMA, &s3cmci_dma_client);



	if (host->irq_cd >= 0)

		free_irq(host->irq_cd, host);

	free_irq(host->irq, host);