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mmc: sdhi: support up to 3 interrupt sources 

Convert the SDHI code to support more than a single interrupt source.
Needed to support hardware that uses GIC instead of INTC as interrupt
controller.

Will also allow us to remove the irq forwarding workaround from the
INTC code in the future.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Magnus Damm 2011-05-06 11:02:45 +00:00 committed by Chris Ball
parent 1f7d6819e5
commit d6a1f86343
1 changed files with 28 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/mmc/host/sh_mobile_sdhi.c
View File

@ -62,7 +62,7 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
struct tmio_mmc_host *host;
char clk_name[8];
int irq, ret;
int i, irq, ret;
priv = kzalloc(sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
if (priv == NULL) {
@ -116,16 +116,27 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
if (ret < 0)
goto eprobe;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = irq;
goto eirq;
for (i = 0; i < 3; i++) {
irq = platform_get_irq(pdev, i);
if (irq < 0) {
if (i) {
continue;
} else {
ret = irq;
goto eirq;
}
}
ret = request_irq(irq, tmio_mmc_irq, 0,
dev_name(&pdev->dev), host);
if (ret) {
while (i--) {
irq = platform_get_irq(pdev, i);
if (irq >= 0)
free_irq(irq, host);
}
goto eirq;
}
}
ret = request_irq(irq, tmio_mmc_irq, 0, dev_name(&pdev->dev), host);
if (ret)
goto eirq;
dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
mmc_hostname(host->mmc), (unsigned long)
(platform_get_resource(pdev,IORESOURCE_MEM, 0)->start),
@ -148,8 +159,14 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
int i, irq;
for (i = 0; i < 3; i++) {
irq = platform_get_irq(pdev, i);
if (irq >= 0)
free_irq(irq, host);
}
free_irq(platform_get_irq(pdev, 0), host);
tmio_mmc_host_remove(host);
clk_disable(priv->clk);
clk_put(priv->clk);