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authorB, Ravi <ravibabu@ti.com>2012-08-31 11:09:49 +0000
committerFelipe Balbi <balbi@ti.com>2012-09-11 17:34:41 +0300
commit65b3d52d02a558fbfe08e43688e15390c5ab3067 (patch)
tree0082a0e45c26ff015a7b0976e917c83d87db8e70 /drivers/usb/musb/am35x.c
parent00a0b1d58af873d842580dcac55f3b156c3a4077 (diff)
usb: musb: add musb_ida for multi instance support
Added musb_ida in musb_core.c to manage the multi core ids. Signed-off-by: Ravi Babu <ravibabu@ti.com> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Santhapuri, Damodar <damodar.santhapuri@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/am35x.c')
-rw-r--r--drivers/usb/musb/am35x.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 9fbe7368803..de717b5a92b 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -458,6 +458,7 @@ static int __devinit am35x_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
+ int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -465,38 +466,47 @@ static int __devinit am35x_probe(struct platform_device *pdev)
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
+ /* get the musb id */
+ musbid = musb_get_id(&pdev->dev, GFP_KERNEL);
+ if (musbid < 0) {
+ dev_err(&pdev->dev, "failed to allocate musb id\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err2;
}
phy_clk = clk_get(&pdev->dev, "fck");
if (IS_ERR(phy_clk)) {
dev_err(&pdev->dev, "failed to get PHY clock\n");
ret = PTR_ERR(phy_clk);
- goto err2;
+ goto err3;
}
clk = clk_get(&pdev->dev, "ick");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
- goto err3;
+ goto err4;
}
ret = clk_enable(phy_clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable PHY clock\n");
- goto err4;
+ goto err5;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
- goto err5;
+ goto err6;
}
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &am35x_dmamask;
musb->dev.coherent_dma_mask = am35x_dmamask;
@@ -514,38 +524,41 @@ static int __devinit am35x_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err6;
+ goto err7;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err6;
+ goto err7;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err6;
+ goto err7;
}
return 0;
-err6:
+err7:
clk_disable(clk);
-err5:
+err6:
clk_disable(phy_clk);
-err4:
+err5:
clk_put(clk);
-err3:
+err4:
clk_put(phy_clk);
-err2:
+err3:
platform_device_put(musb);
+err2:
+ musb_put_id(&pdev->dev, musbid);
+
err1:
kfree(glue);
@@ -557,6 +570,7 @@ static int __devexit am35x_remove(struct platform_device *pdev)
{
struct am35x_glue *glue = platform_get_drvdata(pdev);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
clk_disable(glue->clk);