* [PATCH 1/2] usb: spear-ehci/ohci: Do clk_get using dev-id
@ 2012-11-08 15:07 Viresh Kumar
2012-11-08 15:07 ` [PATCH 2/2] usb: spear-ehci/ohci: Use devm_*() routines Viresh Kumar
0 siblings, 1 reply; 2+ messages in thread
From: Viresh Kumar @ 2012-11-08 15:07 UTC (permalink / raw)
To: gregkh; +Cc: linux-usb, linux-kernel, spear-devel, Amardeep Rai, Viresh Kumar
From: Amardeep Rai <amardeep.rai-ext@st.com>
We used to get clk using con-id, but now we have device struct available for
these devices as they are probed using DT. And so must get clk using dev-id.
Signed-off-by: Amardeep Rai <amardeep.rai-ext@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/usb/host/ehci-spear.c | 13 +------------
drivers/usb/host/ohci-spear.c | 13 +------------
2 files changed, 2 insertions(+), 24 deletions(-)
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 719ca48..d08506a 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -109,8 +109,6 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
struct clk *usbh_clk;
const struct hc_driver *driver = &ehci_spear_hc_driver;
int irq, retval;
- char clk_name[20] = "usbh_clk";
- static int instance = -1;
if (usb_disabled())
return -ENODEV;
@@ -129,16 +127,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &spear_ehci_dma_mask;
- /*
- * Increment the device instance, when probing via device-tree
- */
- if (pdev->id < 0)
- instance++;
- else
- instance = pdev->id;
- sprintf(clk_name, "usbh.%01d_clk", instance);
-
- usbh_clk = clk_get(NULL, clk_name);
+ usbh_clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(usbh_clk)) {
dev_err(&pdev->dev, "Error getting interface clock\n");
retval = PTR_ERR(usbh_clk);
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index d607be3..9747708 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -101,8 +101,6 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
struct spear_ohci *ohci_p;
struct resource *res;
int retval, irq;
- char clk_name[20] = "usbh_clk";
- static int instance = -1;
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
@@ -118,16 +116,7 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &spear_ohci_dma_mask;
- /*
- * Increment the device instance, when probing via device-tree
- */
- if (pdev->id < 0)
- instance++;
- else
- instance = pdev->id;
- sprintf(clk_name, "usbh.%01d_clk", instance);
-
- usbh_clk = clk_get(NULL, clk_name);
+ usbh_clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(usbh_clk)) {
dev_err(&pdev->dev, "Error getting interface clock\n");
retval = PTR_ERR(usbh_clk);
--
1.7.12.rc2.18.g61b472e
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH 2/2] usb: spear-ehci/ohci: Use devm_*() routines
2012-11-08 15:07 [PATCH 1/2] usb: spear-ehci/ohci: Do clk_get using dev-id Viresh Kumar
@ 2012-11-08 15:07 ` Viresh Kumar
0 siblings, 0 replies; 2+ messages in thread
From: Viresh Kumar @ 2012-11-08 15:07 UTC (permalink / raw)
To: gregkh; +Cc: linux-usb, linux-kernel, spear-devel, Viresh Kumar
This patch frees SPEAr ehci/ohci drivers from tension of freeing resources :)
devm_* derivatives of multiple routines are used while allocating resources,
which would be freed automatically by kernel.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/usb/host/ehci-spear.c | 37 +++++++++++++------------------------
drivers/usb/host/ohci-spear.c | 33 ++++++++++++---------------------
2 files changed, 25 insertions(+), 45 deletions(-)
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index d08506a..3fadff8 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -116,7 +116,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
retval = irq;
- goto fail_irq_get;
+ goto fail;
}
/*
@@ -127,38 +127,38 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &spear_ehci_dma_mask;
- usbh_clk = clk_get(&pdev->dev, NULL);
+ usbh_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usbh_clk)) {
dev_err(&pdev->dev, "Error getting interface clock\n");
retval = PTR_ERR(usbh_clk);
- goto fail_get_usbh_clk;
+ goto fail;
}
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
retval = -ENOMEM;
- goto fail_create_hcd;
+ goto fail;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
retval = -ENODEV;
- goto fail_request_resource;
+ goto err_put_hcd;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
+ if (!devm_request_mem_region(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
retval = -EBUSY;
- goto fail_request_resource;
+ goto err_put_hcd;
}
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+ hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
retval = -ENOMEM;
- goto fail_ioremap;
+ goto err_put_hcd;
}
ehci = (struct spear_ehci *)hcd_to_ehci(hcd);
@@ -167,21 +167,15 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
spear_start_ehci(ehci);
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval)
- goto fail_add_hcd;
+ goto err_stop_ehci;
return retval;
-fail_add_hcd:
+err_stop_ehci:
spear_stop_ehci(ehci);
- iounmap(hcd->regs);
-fail_ioremap:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-fail_request_resource:
+err_put_hcd:
usb_put_hcd(hcd);
-fail_create_hcd:
- clk_put(usbh_clk);
-fail_get_usbh_clk:
-fail_irq_get:
+fail:
dev_err(&pdev->dev, "init fail, %d\n", retval);
return retval ;
@@ -200,13 +194,8 @@ static int spear_ehci_hcd_drv_remove(struct platform_device *pdev)
if (ehci_p->clk)
spear_stop_ehci(ehci_p);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
- if (ehci_p->clk)
- clk_put(ehci_p->clk);
-
return 0;
}
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 9747708..c69725d 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -105,7 +105,7 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
retval = irq;
- goto fail_irq_get;
+ goto fail;
}
/*
@@ -116,38 +116,39 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &spear_ohci_dma_mask;
- usbh_clk = clk_get(&pdev->dev, NULL);
+ usbh_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usbh_clk)) {
dev_err(&pdev->dev, "Error getting interface clock\n");
retval = PTR_ERR(usbh_clk);
- goto fail_get_usbh_clk;
+ goto fail;
}
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
retval = -ENOMEM;
- goto fail_create_hcd;
+ goto fail;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
retval = -ENODEV;
- goto fail_request_resource;
+ goto err_put_hcd;
}
hcd->rsrc_start = pdev->resource[0].start;
hcd->rsrc_len = resource_size(res);
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+ if (!devm_request_mem_region(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len,
+ hcd_name)) {
dev_dbg(&pdev->dev, "request_mem_region failed\n");
retval = -EBUSY;
- goto fail_request_resource;
+ goto err_put_hcd;
}
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+ hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
dev_dbg(&pdev->dev, "ioremap failed\n");
retval = -ENOMEM;
- goto fail_ioremap;
+ goto err_put_hcd;
}
ohci_p = (struct spear_ohci *)hcd_to_ohci(hcd);
@@ -160,15 +161,9 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
return retval;
spear_stop_ohci(ohci_p);
- iounmap(hcd->regs);
-fail_ioremap:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-fail_request_resource:
+err_put_hcd:
usb_put_hcd(hcd);
-fail_create_hcd:
- clk_put(usbh_clk);
-fail_get_usbh_clk:
-fail_irq_get:
+fail:
dev_err(&pdev->dev, "init fail, %d\n", retval);
return retval;
@@ -183,12 +178,8 @@ static int spear_ohci_hcd_drv_remove(struct platform_device *pdev)
if (ohci_p->clk)
spear_stop_ohci(ohci_p);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
- if (ohci_p->clk)
- clk_put(ohci_p->clk);
platform_set_drvdata(pdev, NULL);
return 0;
}
--
1.7.12.rc2.18.g61b472e
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-11-08 15:08 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-08 15:07 [PATCH 1/2] usb: spear-ehci/ohci: Do clk_get using dev-id Viresh Kumar
2012-11-08 15:07 ` [PATCH 2/2] usb: spear-ehci/ohci: Use devm_*() routines Viresh Kumar
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®