Merge tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / drivers / gpu / ipu-v3 / ipu-dmfc.c

diff --git a/drivers/gpu/ipu-v3/ipu-dmfc.c b/drivers/gpu/ipu-v3/ipu-dmfc.c
index 42705bb5aaa36b6e42d495032df6758ef9a0ddcd..a40f211f382faf86678e3419ecd0bf4014b95ac6 100644 (file)
--- a/drivers/gpu/ipu-v3/ipu-dmfc.c
+++ b/drivers/gpu/ipu-v3/ipu-dmfc.c
@@ -123,20 +123,6 @@ int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc)
 }
 EXPORT_SYMBOL_GPL(ipu_dmfc_enable_channel);
 
-static void ipu_dmfc_wait_fifos(struct ipu_dmfc_priv *priv)
-{
-       unsigned long timeout = jiffies + msecs_to_jiffies(1000);
-
-       while ((readl(priv->base + DMFC_STAT) & 0x02fff000) != 0x02fff000) {
-               if (time_after(jiffies, timeout)) {
-                       dev_warn(priv->dev,
-                                "Timeout waiting for DMFC FIFOs to clear\n");
-                       break;
-               }
-               cpu_relax();
-       }
-}
-
 void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc)
 {
        struct ipu_dmfc_priv *priv = dmfc->priv;
@@ -145,10 +131,8 @@ void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc)
 
        priv->use_count--;
 
-       if (!priv->use_count) {
-               ipu_dmfc_wait_fifos(priv);
+       if (!priv->use_count)
                ipu_module_disable(priv->ipu, IPU_CONF_DMFC_EN);
-       }
 
        if (priv->use_count < 0)
                priv->use_count = 0;