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authorVivek Gautam <gautam.vivek@samsung.com>2013-03-14 14:29:10 +0400
committerFelipe Balbi <balbi@ti.com>2013-03-18 13:18:15 +0400
commitdc2377d0b0a298ec9d7d232c0d757f462dedcca2 (patch)
treea919ac2faefe701787edf7e459edd8fe17289fc6 /Documentation
parent2ba7943af0f0cca5a069cd3aff807815bc76fff1 (diff)
downloadlinux-dc2377d0b0a298ec9d7d232c0d757f462dedcca2.tar.xz
usb: phy: samsung: Common out the generic stuff
Moving register and structure definitions to header file, and keeping the generic functions to be used across multiple PHYs in common phy helper driver under SAMSUNG_USBPHY, and moving USB 2.0 PHY driver under SAMSUNG_USB2PHY. Also allowing samsung PHY drivers be built as modules. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/usb/samsung-usbphy.txt22
1 files changed, 15 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/usb/samsung-usbphy.txt b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
index 033194934f64..96940abe9a57 100644
--- a/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
+++ b/Documentation/devicetree/bindings/usb/samsung-usbphy.txt
@@ -1,20 +1,25 @@
-* Samsung's usb phy transceiver
+SAMSUNG USB-PHY controllers
-The Samsung's phy transceiver is used for controlling usb phy for
-s3c-hsotg as well as ehci-s5p and ohci-exynos usb controllers
-across Samsung SOCs.
+** Samsung's usb 2.0 phy transceiver
+
+The Samsung's usb 2.0 phy transceiver is used for controlling
+usb 2.0 phy for s3c-hsotg as well as ehci-s5p and ohci-exynos
+usb controllers across Samsung SOCs.
TODO: Adding the PHY binding with controller(s) according to the under
developement generic PHY driver.
Required properties:
Exynos4210:
-- compatible : should be "samsung,exynos4210-usbphy"
+- compatible : should be "samsung,exynos4210-usb2phy"
- reg : base physical address of the phy registers and length of memory mapped
region.
+- clocks: Clock IDs array as required by the controller.
+- clock-names: names of clock correseponding IDs clock property as requested
+ by the controller driver.
Exynos5250:
-- compatible : should be "samsung,exynos5250-usbphy"
+- compatible : should be "samsung,exynos5250-usb2phy"
- reg : base physical address of the phy registers and length of memory mapped
region.
@@ -44,10 +49,13 @@ Example:
usbphy@125B0000 {
#address-cells = <1>;
#size-cells = <1>;
- compatible = "samsung,exynos4210-usbphy";
+ compatible = "samsung,exynos4210-usb2phy";
reg = <0x125B0000 0x100>;
ranges;
+ clocks = <&clock 2>, <&clock 305>;
+ clock-names = "xusbxti", "otg";
+
usbphy-sys {
/* USB device and host PHY_CONTROL registers */
reg = <0x10020704 0x8>;