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authorMagnus Damm <damm@opensource.se>2011-05-06 15:02:45 +0400
committerChris Ball <cjb@laptop.org>2011-05-25 07:53:54 +0400
commitd6a1f863433bdf3f8406dedfa33fa79ee9259db3 (patch)
treea514e8b4db8f8842c7bad2174708f8c690e279c1 /drivers/mmc
parent1f7d6819e56dda651a32b0193ff9e7929f62709f (diff)
downloadlinux-d6a1f863433bdf3f8406dedfa33fa79ee9259db3.tar.xz
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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sh_mobile_sdhi.c39
1 files changed, 28 insertions, 11 deletions
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 2bd235b744df..d264bbeb529b 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -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);