1 files changed, 31 insertions, 32 deletions

diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c
index 52a6fd224127..e00809d996a2 100644
--- a/drivers/gpu/host1x/mipi.c
+++ b/drivers/gpu/host1x/mipi.c
@@ -242,20 +242,6 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device)
         dev->pads = args.args[0];
         dev->device = device;
 
-        mutex_lock(&dev->mipi->lock);
-
-        if (dev->mipi->usage_count++ == 0) {
-                err = tegra_mipi_power_up(dev->mipi);
-                if (err < 0) {
-                        dev_err(dev->mipi->dev,
-                                "failed to power up MIPI bricks: %d\n",
-                                err);
-                        return ERR_PTR(err);
-                }
-        }
-
-        mutex_unlock(&dev->mipi->lock);
-
         return dev;
 
 put:
@@ -270,29 +256,42 @@ EXPORT_SYMBOL(tegra_mipi_request);
 
 void tegra_mipi_free(struct tegra_mipi_device *device)
 {
-        int err;
+        platform_device_put(device->pdev);
+        kfree(device);
+}
+EXPORT_SYMBOL(tegra_mipi_free);
 
-        mutex_lock(&device->mipi->lock);
+int tegra_mipi_enable(struct tegra_mipi_device *dev)
+{
+        int err = 0;
 
-        if (--device->mipi->usage_count == 0) {
-                err = tegra_mipi_power_down(device->mipi);
-                if (err < 0) {
-                        /*
-                         * Not much that can be done here, so an error message
-                         * will have to do.
-                         */
-                        dev_err(device->mipi->dev,
-                                "failed to power down MIPI bricks: %d\n",
-                                err);
-                }
-        }
+        mutex_lock(&dev->mipi->lock);
 
-        mutex_unlock(&device->mipi->lock);
+        if (dev->mipi->usage_count++ == 0)
+                err = tegra_mipi_power_up(dev->mipi);
+
+        mutex_unlock(&dev->mipi->lock);
+
+        return err;
 
-        platform_device_put(device->pdev);
-        kfree(device);
 }
-EXPORT_SYMBOL(tegra_mipi_free);
+EXPORT_SYMBOL(tegra_mipi_enable);
+
+int tegra_mipi_disable(struct tegra_mipi_device *dev)
+{
+        int err = 0;
+
+        mutex_lock(&dev->mipi->lock);
+
+        if (--dev->mipi->usage_count == 0)
+                err = tegra_mipi_power_down(dev->mipi);
+
+        mutex_unlock(&dev->mipi->lock);
+
+        return err;
+
+}
+EXPORT_SYMBOL(tegra_mipi_disable);
 
 static int tegra_mipi_wait(struct tegra_mipi *mipi)
 {