diff mbox

[4/4] mmc: sdhi: support up to 3 interrupt sources

Message ID Pine.LNX.4.64.1105061301030.10445@axis700.grange (mailing list archive)
State New, archived
Headers show

Commit Message

Guennadi Liakhovetski May 6, 2011, 11:02 a.m. UTC 
From: Magnus Damm <damm@opensource.se>

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>
---
 drivers/mmc/host/sh_mobile_sdhi.c |   39 ++++++++++++++++++++++++++----------
 1 files changed, 28 insertions(+), 11 deletions(-)
diff mbox

Patch

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 @@  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);