Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

[cascardo/linux.git] / drivers / pwm / pwm-tipwmss.c

diff --git a/drivers/pwm/pwm-tipwmss.c b/drivers/pwm/pwm-tipwmss.c
index 5cf65a1..829f499 100644 (file)
--- a/drivers/pwm/pwm-tipwmss.c
+++ b/drivers/pwm/pwm-tipwmss.c
@@ -22,32 +22,6 @@
 #include <linux/pm_runtime.h>
 #include <linux/of_device.h>
 
-#include "pwm-tipwmss.h"
-
-#define PWMSS_CLKCONFIG                0x8     /* Clock gating reg */
-#define PWMSS_CLKSTATUS                0xc     /* Clock gating status reg */
-
-struct pwmss_info {
-       void __iomem    *mmio_base;
-       struct mutex    pwmss_lock;
-       u16             pwmss_clkconfig;
-};
-
-u16 pwmss_submodule_state_change(struct device *dev, int set)
-{
-       struct pwmss_info *info = dev_get_drvdata(dev);
-       u16 val;
-
-       mutex_lock(&info->pwmss_lock);
-       val = readw(info->mmio_base + PWMSS_CLKCONFIG);
-       val |= set;
-       writew(val , info->mmio_base + PWMSS_CLKCONFIG);
-       mutex_unlock(&info->pwmss_lock);
-
-       return readw(info->mmio_base + PWMSS_CLKSTATUS);
-}
-EXPORT_SYMBOL(pwmss_submodule_state_change);
-
 static const struct of_device_id pwmss_of_match[] = {
        { .compatible   = "ti,am33xx-pwmss" },
        {},
@@ -57,24 +31,10 @@ MODULE_DEVICE_TABLE(of, pwmss_of_match);
 static int pwmss_probe(struct platform_device *pdev)
 {
        int ret;
-       struct resource *r;
-       struct pwmss_info *info;
        struct device_node *node = pdev->dev.of_node;
 
-       info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
-       if (!info)
-               return -ENOMEM;
-
-       mutex_init(&info->pwmss_lock);
-
-       r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
-       if (IS_ERR(info->mmio_base))
-               return PTR_ERR(info->mmio_base);
-
        pm_runtime_enable(&pdev->dev);
        pm_runtime_get_sync(&pdev->dev);
-       platform_set_drvdata(pdev, info);
 
        /* Populate all the child nodes here... */
        ret = of_platform_populate(node, NULL, NULL, &pdev->dev);
@@ -86,30 +46,21 @@ static int pwmss_probe(struct platform_device *pdev)
 
 static int pwmss_remove(struct platform_device *pdev)
 {
-       struct pwmss_info *info = platform_get_drvdata(pdev);
-
        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
-       mutex_destroy(&info->pwmss_lock);
        return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
 static int pwmss_suspend(struct device *dev)
 {
-       struct pwmss_info *info = dev_get_drvdata(dev);
-
-       info->pwmss_clkconfig = readw(info->mmio_base + PWMSS_CLKCONFIG);
        pm_runtime_put_sync(dev);
        return 0;
 }
 
 static int pwmss_resume(struct device *dev)
 {
-       struct pwmss_info *info = dev_get_drvdata(dev);
-
        pm_runtime_get_sync(dev);
-       writew(info->pwmss_clkconfig, info->mmio_base + PWMSS_CLKCONFIG);
        return 0;
 }
 #endif