Merge tag 'tegra-for-3.14-dmas-resets-rework' into drm/for-next

ARM: tegra: implement common DMA and resets DT bindings

This series converts the Tegra DTs and drivers to use the common/
standard DMA and reset bindings, rather than custom bindings. It also
adds complete documentation for the Tegra clock bindings without
actually changing any binding definitions.

This conversion relies on a few sets of patches in branches from outside
the Tegra tree:

1) A patch to add an DMA channel request API which allows deferred probe
   to be implemented.

2) A patch to implement a common part of the of_xlate function for DMA
   controllers.

3) Some ASoC patches (which in turn rely on (1) above), which support
   deferred probe during DMA channel allocation.

4) The Tegra clock driver changes for 3.14.

Consequently, this branch is based on a merge of all of those external
branches.

In turn, this branch is or will be pulled into a few places that either
rely on features introduced here, or would otherwise conflict with the
patches:

a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid
   conflicts.

b) The DRM tree, which introduces new code that relies on the reset
   controller framework introduced in this branch, and to avoid
   conflicts.

1 files changed, 11 insertions, 3 deletions

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index b9fd0396011e..6f7e23dd1417 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -17,7 +17,6 @@
  */
 
 #include <linux/clk.h>
-#include <linux/clk/tegra.h>
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
@@ -29,6 +28,7 @@
 #include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/reset.h>
 #include <linux/slab.h>
 #include <linux/usb/ehci_def.h>
 #include <linux/usb/tegra_usb_phy.h>
@@ -62,6 +62,7 @@ static int (*orig_hub_control)(struct usb_hcd *hcd,
 struct tegra_ehci_hcd {
 	struct tegra_usb_phy *phy;
 	struct clk *clk;
+	struct reset_control *rst;
 	int port_resuming;
 	bool needs_double_reset;
 	enum tegra_usb_phy_port_speed port_speed;
@@ -385,13 +386,20 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 		goto cleanup_hcd_create;
 	}
 
+	tegra->rst = devm_reset_control_get(&pdev->dev, "usb");
+	if (IS_ERR(tegra->rst)) {
+		dev_err(&pdev->dev, "Can't get ehci reset\n");
+		err = PTR_ERR(tegra->rst);
+		goto cleanup_hcd_create;
+	}
+
 	err = clk_prepare_enable(tegra->clk);
 	if (err)
 		goto cleanup_hcd_create;
 
-	tegra_periph_reset_assert(tegra->clk);
+	reset_control_assert(tegra->rst);
 	udelay(1);
-	tegra_periph_reset_deassert(tegra->clk);
+	reset_control_deassert(tegra->rst);
 
 	u_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0);
 	if (IS_ERR(u_phy)) {