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>
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 2bd235b..d264bbe 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -62,7 +62,7 @@
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 @@
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 @@
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;
- free_irq(platform_get_irq(pdev, 0), host);
+ for (i = 0; i < 3; i++) {
+ irq = platform_get_irq(pdev, i);
+ if (irq >= 0)
+ free_irq(irq, host);
+ }
+
tmio_mmc_host_remove(host);
clk_disable(priv->clk);
clk_put(priv->clk);