Commit 65b3d52d authored by B, Ravi's avatar B, Ravi Committed by Felipe Balbi

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: default avatarRavi Babu <ravibabu@ti.com>
Signed-off-by: default avatarAjay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: default avatarSanthapuri, Damodar <damodar.santhapuri@ti.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 00a0b1d5
......@@ -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);
......
......@@ -454,6 +454,7 @@ static int __devinit bfin_probe(struct platform_device *pdev)
struct bfin_glue *glue;
int ret = -ENOMEM;
int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
......@@ -461,12 +462,21 @@ static int __devinit bfin_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;
}
musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &bfin_dmamask;
musb->dev.coherent_dma_mask = bfin_dmamask;
......@@ -482,26 +492,29 @@ static int __devinit bfin_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
goto err2;
goto err3;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
goto err2;
goto err3;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
goto err2;
goto err3;
}
return 0;
err2:
err3:
platform_device_put(musb);
err2:
musb_put_id(&pdev->dev, musbid);
err1:
kfree(glue);
......@@ -513,6 +526,7 @@ static int __devexit bfin_remove(struct platform_device *pdev)
{
struct bfin_glue *glue = platform_get_drvdata(pdev);
musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
kfree(glue);
......
......@@ -479,6 +479,7 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
......@@ -486,25 +487,34 @@ static int __devinit da8xx_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;
}
clk = clk_get(&pdev->dev, "usb20");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
goto err2;
goto err3;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
goto err3;
goto err4;
}
musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &da8xx_dmamask;
musb->dev.coherent_dma_mask = da8xx_dmamask;
......@@ -521,32 +531,35 @@ static int __devinit da8xx_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
goto err4;
goto err5;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
goto err4;
goto err5;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
goto err4;
goto err5;
}
return 0;
err4:
err5:
clk_disable(clk);
err3:
err4:
clk_put(clk);
err2:
err3:
platform_device_put(musb);
err2:
musb_put_id(&pdev->dev, musbid);
err1:
kfree(glue);
......@@ -558,6 +571,7 @@ static int __devexit da8xx_remove(struct platform_device *pdev)
{
struct da8xx_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);
......
......@@ -511,6 +511,7 @@ static int __devinit davinci_probe(struct platform_device *pdev)
struct clk *clk;
int ret = -ENOMEM;
int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
......@@ -518,25 +519,34 @@ static int __devinit davinci_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;
}
clk = clk_get(&pdev->dev, "usb");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
goto err2;
goto err3;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
goto err3;
goto err4;
}
musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &davinci_dmamask;
musb->dev.coherent_dma_mask = davinci_dmamask;
......@@ -553,32 +563,35 @@ static int __devinit davinci_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
goto err4;
goto err5;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
goto err4;
goto err5;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
goto err4;
goto err5;
}
return 0;
err4:
err5:
clk_disable(clk);
err3:
err4:
clk_put(clk);
err2:
err3:
platform_device_put(musb);
err2:
musb_put_id(&pdev->dev, musbid);
err1:
kfree(glue);
......@@ -590,6 +603,7 @@ static int __devexit davinci_remove(struct platform_device *pdev)
{
struct davinci_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);
......
......@@ -99,6 +99,7 @@
#include <linux/prefetch.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/idr.h>
#include "musb_core.h"
......@@ -114,6 +115,7 @@
#define MUSB_DRIVER_NAME "musb-hdrc"
const char musb_driver_name[] = MUSB_DRIVER_NAME;
static DEFINE_IDA(musb_ida);
MODULE_DESCRIPTION(DRIVER_INFO);
MODULE_AUTHOR(DRIVER_AUTHOR);
......@@ -130,6 +132,35 @@ static inline struct musb *dev_to_musb(struct device *dev)
/*-------------------------------------------------------------------------*/
int musb_get_id(struct device *dev, gfp_t gfp_mask)
{
int ret;
int id;
ret = ida_pre_get(&musb_ida, gfp_mask);
if (!ret) {
dev_err(dev, "failed to reserve resource for id\n");
return -ENOMEM;
}
ret = ida_get_new(&musb_ida, &id);
if (ret < 0) {
dev_err(dev, "failed to allocate a new id\n");
return ret;
}
return id;
}
EXPORT_SYMBOL_GPL(musb_get_id);
void musb_put_id(struct device *dev, int id)
{
dev_dbg(dev, "removing id %d\n", id);
ida_remove(&musb_ida, id);
}
EXPORT_SYMBOL_GPL(musb_put_id);
#ifndef CONFIG_BLACKFIN
static int musb_ulpi_read(struct usb_phy *phy, u32 offset)
{
......
......@@ -517,6 +517,8 @@ extern const char musb_driver_name[];
extern void musb_start(struct musb *musb);
extern void musb_stop(struct musb *musb);
extern int musb_get_id(struct device *dev, gfp_t gfp_mask);
extern void musb_put_id(struct device *dev, int id);
extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src);
extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst);
......
......@@ -448,7 +448,7 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
struct resource *res;
struct resource resources[2];
char res_name[10];
int ret;
int ret, musbid;
/* get memory resource */
sprintf(res_name, "musb%d", id);
......@@ -473,14 +473,22 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
res->parent = NULL;
resources[1] = *res;
/* get the musb id */
musbid = musb_get_id(dev, GFP_KERNEL);
if (musbid < 0) {
dev_err(dev, "failed to allocate musb id\n");
ret = -ENOMEM;
goto err0;
}
/* allocate the child platform device */
musb = platform_device_alloc("musb-hdrc", -1);
musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(dev, "failed to allocate musb device\n");
ret = -ENOMEM;
goto err0;
goto err1;
}
musb->id = musbid;
musb->dev.parent = dev;
musb->dev.dma_mask = &musb_dmamask;
musb->dev.coherent_dma_mask = musb_dmamask;
......@@ -492,31 +500,34 @@ static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
ret = platform_device_add_resources(musb, resources, 2);
if (ret) {
dev_err(dev, "failed to add resources\n");
goto err1;
goto err2;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(dev, "failed to add platform_data\n");
goto err1;
goto err2;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(dev, "failed to register musb device\n");
goto err1;
goto err2;
}
return 0;
err1:
err2:
platform_device_put(musb);
err1:
musb_put_id(dev, musbid);
err0:
return ret;
}
static void __devexit dsps_delete_musb_pdev(struct dsps_glue *glue)
{
musb_put_id(glue->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
}
......
......@@ -478,6 +478,7 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
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 @@ static int __devinit omap2430_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 err0;
}
musb = platform_device_alloc("musb-hdrc", musbid);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
goto err0;
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 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
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 @@ static int __devinit omap2430_probe(struct platform_device *pdev)
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 @@ static int __devexit omap2430_remove(struct platform_device *pdev)
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;
......
......@@ -1159,6 +1159,7 @@ static int __devinit tusb_probe(struct platform_device *pdev)
struct tusb6010_glue *glue;
int ret = -ENOMEM;
int musbid;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
if (!glue) {
......@@ -1166,12 +1167,21 @@ static int __devinit tusb_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;
}
musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &tusb_dmamask;
musb->dev.coherent_dma_mask = tusb_dmamask;
......@@ -1187,26 +1197,29 @@ static int __devinit tusb_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
goto err2;
goto err3;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
goto err2;
goto err3;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
goto err1;
goto err3;
}
return 0;
err2:
err3:
platform_device_put(musb);
err2:
musb_put_id(&pdev->dev, musbid);
err1:
kfree(glue);
......@@ -1218,6 +1231,7 @@ static int __devexit tusb_remove(struct platform_device *pdev)
{
struct tusb6010_glue *glue = platform_get_drvdata(pdev);
musb_put_id(&pdev->dev, glue->musb->id);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
kfree(glue);
......
......@@ -74,25 +74,34 @@ static int __devinit ux500_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;
}
clk = clk_get(&pdev->dev, "usb");
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
goto err2;
goto err3;
}
ret = clk_enable(clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable clock\n");
goto err3;
goto err4;
}
musb->id = musbid;
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = pdev->dev.dma_mask;
musb->dev.coherent_dma_mask = pdev->dev.coherent_dma_mask;
......@@ -109,32 +118,35 @@ static int __devinit ux500_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
goto err4;
goto err5;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
goto err4;
goto err5;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
goto err4;
goto err5;
}
return 0;
err4:
err5:
clk_disable(clk);
err3:
err4:
clk_put(clk);
err2:
err3:
platform_device_put(musb);
err2:
musb_put_id(&pdev->dev, musbid);
err1:
kfree(glue);
......@@ -146,6 +158,7 @@ static int __devexit ux500_remove(struct platform_device *pdev)
{
struct ux500_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);
......
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