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>
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index d96873b..a538fe1 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -478,6 +478,7 @@
struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
+ int musbid;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
if (!glue) {
@@ -485,12 +486,21 @@
goto err0;
}
- musb = platform_device_alloc("musb-hdrc", -1);
- if (!musb) {
- dev_err(&pdev->dev, "failed to allocate musb device\n");
+ /* 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 err0;
}
+ musb = platform_device_alloc("musb-hdrc", musbid);
+ if (!musb) {
+ dev_err(&pdev->dev, "failed to allocate musb device\n");
+ goto err1;
+ }
+
+ musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &omap2430_dmamask;
musb->dev.coherent_dma_mask = omap2430_dmamask;
@@ -557,13 +567,13 @@
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err1;
+ goto err2;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err1;
+ goto err2;
}
pm_runtime_enable(&pdev->dev);
@@ -571,14 +581,17 @@
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err1;
+ goto err2;
}
return 0;
-err1:
+err2:
platform_device_put(musb);
+err1:
+ musb_put_id(&pdev->dev, musbid);
+
err0:
return ret;
}
@@ -588,6 +601,7 @@
struct omap2430_glue *glue = platform_get_drvdata(pdev);
cancel_work_sync(&glue->omap_musb_mailbox_work);
+ musb_put_id(&pdev->dev, glue->musb->id);
platform_device_unregister(glue->musb);
return 0;