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authorRoger Quadros <rogerq@ti.com>2012-11-15 11:48:51 +0200
committerRoger Quadros <rogerq@ti.com>2013-02-13 13:22:52 +0200
commitc6cd087ed058f8a7dfe1997cc51fdf8005e25a03 (patch)
tree52f9d2404426c13dd14814a4183ac26cd244e1df /drivers/mfd/omap-usb-host.c
parent340c64eabacb2a4331b4357c0e8944027ce37216 (diff)
downloadlinux-c6cd087ed058f8a7dfe1997cc51fdf8005e25a03.tar.gz
mfd: omap-usb-host: Get rid of unnecessary spinlock
The driver does not have an interrupt handler and we don't really need a spinlock, so get rid of it. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/mfd/omap-usb-host.c')
-rw-r--r--drivers/mfd/omap-usb-host.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index bdfc8b7b5af..0740c6856b5 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -23,7 +23,6 @@
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
-#include <linux/spinlock.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/platform_data/usb-omap.h>
@@ -108,7 +107,6 @@ struct usbhs_hcd_omap {
struct usbhs_omap_platform_data *pdata;
u32 usbhs_rev;
- spinlock_t lock;
};
/*-------------------------------------------------------------------------*/
@@ -276,13 +274,11 @@ static int usbhs_runtime_resume(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = omap->pdata;
- unsigned long flags;
int i, r;
dev_dbg(dev, "usbhs_runtime_resume\n");
omap_tll_enable();
- spin_lock_irqsave(&omap->lock, flags);
if (!IS_ERR(omap->ehci_logic_fck))
clk_enable(omap->ehci_logic_fck);
@@ -324,8 +320,6 @@ static int usbhs_runtime_resume(struct device *dev)
}
}
- spin_unlock_irqrestore(&omap->lock, flags);
-
return 0;
}
@@ -333,13 +327,10 @@ static int usbhs_runtime_suspend(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = omap->pdata;
- unsigned long flags;
int i;
dev_dbg(dev, "usbhs_runtime_suspend\n");
- spin_lock_irqsave(&omap->lock, flags);
-
for (i = 0; i < omap->nports; i++) {
switch (pdata->port_mode[i]) {
case OMAP_EHCI_PORT_MODE_HSIC:
@@ -362,7 +353,6 @@ static int usbhs_runtime_suspend(struct device *dev)
if (!IS_ERR(omap->ehci_logic_fck))
clk_disable(omap->ehci_logic_fck);
- spin_unlock_irqrestore(&omap->lock, flags);
omap_tll_disable();
return 0;
@@ -372,7 +362,6 @@ static void omap_usbhs_init(struct device *dev)
{
struct usbhs_hcd_omap *omap = dev_get_drvdata(dev);
struct usbhs_omap_platform_data *pdata = omap->pdata;
- unsigned long flags;
unsigned reg;
dev_dbg(dev, "starting TI HSUSB Controller\n");
@@ -391,7 +380,6 @@ static void omap_usbhs_init(struct device *dev)
}
pm_runtime_get_sync(dev);
- spin_lock_irqsave(&omap->lock, flags);
reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
/* setup ULPI bypass and burst configurations */
@@ -454,8 +442,6 @@ static void omap_usbhs_init(struct device *dev)
usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
- spin_unlock_irqrestore(&omap->lock, flags);
-
pm_runtime_put_sync(dev);
if (pdata->phy_reset) {
/* Hold the PHY in RESET for enough time till
@@ -521,8 +507,6 @@ static int usbhs_omap_probe(struct platform_device *pdev)
return -EADDRNOTAVAIL;
}
- spin_lock_init(&omap->lock);
-
omap->pdata = pdata;
pm_runtime_enable(dev);