18 files changed, 3 insertions, 122 deletions

diff --git a/arch/arm/mach-aaec2000/clock.c b/arch/arm/mach-aaec2000/clock.c
index 0340ddc4824e..828208348b76 100644
--- a/arch/arm/mach-aaec2000/clock.c
+++ b/arch/arm/mach-aaec2000/clock.c
@@ -58,17 +58,6 @@ void clk_disable(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_disable);
 
-int clk_use(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_unuse);
-
 unsigned long clk_get_rate(struct clk *clk)
 {
         return clk->rate;
diff --git a/arch/arm/mach-integrator/clock.c b/arch/arm/mach-integrator/clock.c
index 73c360685cad..bbfe46cd91fe 100644
--- a/arch/arm/mach-integrator/clock.c
+++ b/arch/arm/mach-integrator/clock.c
@@ -58,17 +58,6 @@ void clk_disable(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_disable);
 
-int clk_use(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_unuse);
-
 unsigned long clk_get_rate(struct clk *clk)
 {
         return clk->rate;
diff --git a/arch/arm/mach-realview/clock.c b/arch/arm/mach-realview/clock.c
index 002635c97bb6..331e1b483aa7 100644
--- a/arch/arm/mach-realview/clock.c
+++ b/arch/arm/mach-realview/clock.c
@@ -57,17 +57,6 @@ void clk_disable(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_disable);
 
-int clk_use(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_unuse);
-
 unsigned long clk_get_rate(struct clk *clk)
 {
         return clk->rate;
diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
index 82e8253b1fa0..77f321fac281 100644
--- a/arch/arm/mach-s3c2410/clock.c
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -151,18 +151,6 @@ void clk_disable(struct clk *clk)
 }
 
 
-int clk_use(struct clk *clk)
-{
-        atomic_inc(&clk->used);
-        return 0;
-}
-
-
-void clk_unuse(struct clk *clk)
-{
-        atomic_dec(&clk->used);
-}
-
 unsigned long clk_get_rate(struct clk *clk)
 {
         if (IS_ERR(clk))
@@ -196,8 +184,6 @@ EXPORT_SYMBOL(clk_get);
 EXPORT_SYMBOL(clk_put);
 EXPORT_SYMBOL(clk_enable);
 EXPORT_SYMBOL(clk_disable);
-EXPORT_SYMBOL(clk_use);
-EXPORT_SYMBOL(clk_unuse);
 EXPORT_SYMBOL(clk_get_rate);
 EXPORT_SYMBOL(clk_round_rate);
 EXPORT_SYMBOL(clk_set_rate);
@@ -370,7 +356,6 @@ static struct clk init_clocks[] = {
 int s3c24xx_register_clock(struct clk *clk)
 {
         clk->owner = THIS_MODULE;
-        atomic_set(&clk->used, 0);
 
         if (clk->enable == NULL)
                 clk->enable = clk_null_enable;
diff --git a/arch/arm/mach-s3c2410/clock.h b/arch/arm/mach-s3c2410/clock.h
index 7953b6f397b9..177d5c8decf7 100644
--- a/arch/arm/mach-s3c2410/clock.h
+++ b/arch/arm/mach-s3c2410/clock.h
@@ -16,7 +16,6 @@ struct clk {
         struct clk           *parent;
         const char           *name;
         int                   id;
-        atomic_t              used;
         unsigned long         rate;
         unsigned long         ctrlbit;
         int                 (*enable)(struct clk *, int enable);
diff --git a/arch/arm/mach-s3c2410/time.c b/arch/arm/mach-s3c2410/time.c
index 8a00e3c3cd08..9acda44b25a6 100644
--- a/arch/arm/mach-s3c2410/time.c
+++ b/arch/arm/mach-s3c2410/time.c
@@ -191,7 +191,6 @@ static void s3c2410_timer_setup (void)
                 if (IS_ERR(clk))
                         panic("failed to get clock for system timer");
 
-                clk_use(clk);
                 clk_enable(clk);
 
                 pclk = clk_get_rate(clk);
diff --git a/arch/arm/mach-versatile/clock.c b/arch/arm/mach-versatile/clock.c
index b96a2ea15d41..ada3142da8dc 100644
--- a/arch/arm/mach-versatile/clock.c
+++ b/arch/arm/mach-versatile/clock.c
@@ -58,17 +58,6 @@ void clk_disable(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_disable);
 
-int clk_use(struct clk *clk)
-{
-        return 0;
-}
-EXPORT_SYMBOL(clk_use);
-
-void clk_unuse(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_unuse);
-
 unsigned long clk_get_rate(struct clk *clk)
 {
         return clk->rate;
diff --git a/drivers/char/watchdog/s3c2410_wdt.c b/drivers/char/watchdog/s3c2410_wdt.c
index eb667daee19b..621e8a99e733 100644
--- a/drivers/char/watchdog/s3c2410_wdt.c
+++ b/drivers/char/watchdog/s3c2410_wdt.c
@@ -397,7 +397,6 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
                 return -ENOENT;
         }
 
-        clk_use(wdt_clock);
         clk_enable(wdt_clock);
 
         /* see if we can actually set the requested timer margin, and if
@@ -444,7 +443,6 @@ static int s3c2410wdt_remove(struct platform_device *dev)
 
         if (wdt_clock != NULL) {
                 clk_disable(wdt_clock);
-                clk_unuse(wdt_clock);
                 clk_put(wdt_clock);
                 wdt_clock = NULL;
         }
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 58cfd3111ef6..2a2f86d8c2d8 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -738,7 +738,6 @@ static void s3c24xx_i2c_free(struct s3c24xx_i2c *i2c)
 {
         if (i2c->clk != NULL && !IS_ERR(i2c->clk)) {
                 clk_disable(i2c->clk);
-                clk_unuse(i2c->clk);
                 clk_put(i2c->clk);
                 i2c->clk = NULL;
         }
@@ -778,7 +777,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
 
         dev_dbg(&pdev->dev, "clock source %p\n", i2c->clk);
 
-        clk_use(i2c->clk);
         clk_enable(i2c->clk);
 
         /* map the registers */
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 9b1ab5e7a98d..d847ed51cfb1 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -72,13 +72,9 @@ static int amba_kmi_open(struct serio *io)
         unsigned int divisor;
         int ret;
 
-        ret = clk_use(kmi->clk);
-        if (ret)
-                goto out;
-
         ret = clk_enable(kmi->clk);
         if (ret)
-                goto clk_unuse;
+                goto out;
 
         divisor = clk_get_rate(kmi->clk) / 8000000 - 1;
         writeb(divisor, KMICLKDIV);
@@ -97,8 +93,6 @@ static int amba_kmi_open(struct serio *io)
 
  clk_disable:
         clk_disable(kmi->clk);
- clk_unuse:
-        clk_unuse(kmi->clk);
  out:
         return ret;
 }
@@ -111,7 +105,6 @@ static void amba_kmi_close(struct serio *io)
 
         free_irq(kmi->irq, kmi);
         clk_disable(kmi->clk);
-        clk_unuse(kmi->clk);
 }
 
 static int amba_kmi_probe(struct amba_device *dev, void *id)
diff --git a/drivers/mmc/mmci.c b/drivers/mmc/mmci.c
index 166c9b0ad04e..31b0b6d612bf 100644
--- a/drivers/mmc/mmci.c
+++ b/drivers/mmc/mmci.c
@@ -479,13 +479,9 @@ static int mmci_probe(struct amba_device *dev, void *id)
                 goto host_free;
         }
 
-        ret = clk_use(host->clk);
-        if (ret)
-                goto clk_free;
-
         ret = clk_enable(host->clk);
         if (ret)
-                goto clk_unuse;
+                goto clk_free;
 
         host->plat = plat;
         host->mclk = clk_get_rate(host->clk);
@@ -558,8 +554,6 @@ static int mmci_probe(struct amba_device *dev, void *id)
         iounmap(host->base);
  clk_disable:
         clk_disable(host->clk);
- clk_unuse:
-        clk_unuse(host->clk);
  clk_free:
         clk_put(host->clk);
  host_free:
@@ -594,7 +588,6 @@ static int mmci_remove(struct amba_device *dev)
 
                 iounmap(host->base);
                 clk_disable(host->clk);
-                clk_unuse(host->clk);
                 clk_put(host->clk);
 
                 mmc_free_host(mmc);
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index d209214b1318..b796a9a6b924 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -460,7 +460,6 @@ static int s3c2410_nand_remove(struct platform_device *pdev)
 
         if (info->clk != NULL && !IS_ERR(info->clk)) {
                 clk_disable(info->clk);
-                clk_unuse(info->clk);
                 clk_put(info->clk);
         }
 
@@ -598,7 +597,6 @@ static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440)
                 goto exit_error;
         }
 
-        clk_use(info->clk);
         clk_enable(info->clk);
 
         /* allocate and map the resource */
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index d84476ee6592..531b0e4f25e5 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -761,10 +761,6 @@ static int pl011_probe(struct amba_device *dev, void *id)
                 goto unmap;
         }
 
-        ret = clk_use(uap->clk);
-        if (ret)
-                goto putclk;
-
         uap->port.dev = &dev->dev;
         uap->port.mapbase = dev->res.start;
         uap->port.membase = base;
@@ -782,8 +778,6 @@ static int pl011_probe(struct amba_device *dev, void *id)
         if (ret) {
                 amba_set_drvdata(dev, NULL);
                 amba_ports[i] = NULL;
-                clk_unuse(uap->clk);
- putclk:
                 clk_put(uap->clk);
  unmap:
                 iounmap(base);
@@ -808,7 +802,6 @@ static int pl011_remove(struct amba_device *dev)
                         amba_ports[i] = NULL;
 
         iounmap(uap->port.membase);
-        clk_unuse(uap->clk);
         clk_put(uap->clk);
         kfree(uap);
         return 0;
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 47681c4654e4..eb47f5b71aeb 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -782,11 +782,9 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 
                 if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) {
                         clk_disable(ourport->baudclk);
-                        clk_unuse(ourport->baudclk);
                         ourport->baudclk  = NULL;
                 }
 
-                clk_use(clk);
                 clk_enable(clk);
 
                 ourport->clksrc = clksrc;
@@ -1077,9 +1075,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 
         ourport->clk    = clk_get(&platdev->dev, "uart");
 
-        if (ourport->clk != NULL && !IS_ERR(ourport->clk))
-                clk_use(ourport->clk);
-
         dbg("port: map=%08x, mem=%08x, irq=%d, clock=%ld\n",
             port->mapbase, port->membase, port->irq, port->uartclk);
 
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 35cc9402adc0..add198a4be79 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -363,7 +363,6 @@ int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
                 goto err1;
         }
 
-        clk_use(clk);
         s3c2410_start_hc(dev, hcd);
 
         hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
@@ -384,7 +383,6 @@ int usb_hcd_s3c2410_probe (const struct hc_driver *driver,
  err2:
         s3c2410_stop_hc(dev);
         iounmap(hcd->regs);
-        clk_unuse(clk);
         clk_put(clk);
 
  err1:
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index a3c2c45e29e0..69421c86252c 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -346,10 +346,6 @@ static int clcdfb_register(struct clcd_fb *fb)
                 goto out;
         }
 
-        ret = clk_use(fb->clk);
-        if (ret)
-                goto free_clk;
-
         fb->fb.fix.mmio_start   = fb->dev->res.start;
         fb->fb.fix.mmio_len     = SZ_4K;
 
@@ -357,7 +353,7 @@ static int clcdfb_register(struct clcd_fb *fb)
         if (!fb->regs) {
                 printk(KERN_ERR "CLCD: unable to remap registers\n");
                 ret = -ENOMEM;
-                goto unuse_clk;
+                goto free_clk;
         }
 
         fb->fb.fbops            = &clcdfb_ops;
@@ -427,8 +423,6 @@ static int clcdfb_register(struct clcd_fb *fb)
         printk(KERN_ERR "CLCD: cannot register framebuffer (%d)\n", ret);
 
         iounmap(fb->regs);
- unuse_clk:
-        clk_unuse(fb->clk);
  free_clk:
         clk_put(fb->clk);
  out:
@@ -489,7 +483,6 @@ static int clcdfb_remove(struct amba_device *dev)
         clcdfb_disable(fb);
         unregister_framebuffer(&fb->fb);
         iounmap(fb->regs);
-        clk_unuse(fb->clk);
         clk_put(fb->clk);
 
         fb->board->remove(fb);
diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index ce6e749db3a7..d9c08cc7ac44 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -746,7 +746,6 @@ int __init s3c2410fb_probe(struct platform_device *pdev)
                 goto release_irq;
         }
 
-        clk_use(info->clk);
         clk_enable(info->clk);
         dprintk("got and enabled clock\n");
 
@@ -783,7 +782,6 @@ free_video_memory:
         s3c2410fb_unmap_video_memory(info);
 release_clock:
         clk_disable(info->clk);
-        clk_unuse(info->clk);
         clk_put(info->clk);
 release_irq:
         free_irq(irq,info);
@@ -828,7 +826,6 @@ static int s3c2410fb_remove(struct platform_device *pdev)
 
         if (info->clk) {
                 clk_disable(info->clk);
-                clk_unuse(info->clk);
                 clk_put(info->clk);
                 info->clk = NULL;
         }
diff --git a/include/asm-arm/hardware/clock.h b/include/asm-arm/hardware/clock.h
index 5c5689409a4b..69f33215e437 100644
--- a/include/asm-arm/hardware/clock.h
+++ b/include/asm-arm/hardware/clock.h
@@ -63,20 +63,6 @@ int clk_enable(struct clk *clk);
 void clk_disable(struct clk *clk);
 
 /**
- * clk_use - increment the use count
- * @clk: clock source
- *
- * Returns success (0) or negative errno.
- */
-int clk_use(struct clk *clk);
-
-/**
- * clk_unuse - decrement the use count
- * @clk: clock source
- */
-void clk_unuse(struct clk *clk);
-
-/**
  * clk_get_rate - obtain the current clock rate (in Hz) for a clock source.
  *                This is only valid once the clock source has been enabled.
  * @clk: clock source