Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1514651 > unrolled thread

[PATCH v4 0/4] Add DT support for DA8xx

Back to article view | Back to linux.kernel

Contents

  [PATCH v4 0/4] Add DT support for DA8xx Alexandre Bailon <abailon@baylibre.com> - 2016-11-03 17:10 +0100
    [PATCH v4 1/4] dt/bindings: Add binding for the DA8xx MUSB driver Alexandre Bailon <abailon@baylibre.com> - 2016-11-03 17:10 +0100
    [PATCH v4 4/4] ARM: dts: da850: Add the usb otg device node Alexandre Bailon <abailon@baylibre.com> - 2016-11-03 17:10 +0100
    [PATCH v4 2/4] usb: musb: core: added helper function for parsing DT Alexandre Bailon <abailon@baylibre.com> - 2016-11-03 17:10 +0100

#1514651 — [PATCH v4 0/4] Add DT support for DA8xx

Changes in v2:
* Remove unrelated changes in patch 3
* Rename the device node in patch 4

Changes in v3:
* Fix few mistakes in DT binding sample
* Only build the device table if DT is enabled

Change in v4:
* Fix a nit

Alexandre Bailon (1):
  ARM: dts: da850: Add the usb otg device node

Petr Kulhavy (3):
  dt/bindings: Add binding for the DA8xx MUSB driver
  usb: musb: core: added helper function for parsing DT
  usb: musb: da8xx: Add DT support for the DA8xx driver

 .../devicetree/bindings/usb/da8xx-usb.txt          | 43 ++++++++++++++++++++
 arch/arm/boot/dts/da850-lcdk.dts                   |  8 ++++
 arch/arm/boot/dts/da850.dtsi                       | 15 +++++++
 drivers/usb/musb/da8xx.c                           | 46 ++++++++++++++++++++++
 drivers/usb/musb/musb_core.c                       | 19 +++++++++
 drivers/usb/musb/musb_core.h                       |  6 +++
 6 files changed, 137 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/da8xx-usb.txt

-- 
2.7.3

[toc] | [next] | [standalone]

#1514656 — [PATCH v4 1/4] dt/bindings: Add binding for the DA8xx MUSB driver

From: Petr Kulhavy <petr@barix.com>

DT binding for the TI DA8xx/OMAP-L1x/AM17xx/AM18xx MUSB driver.

Signed-off-by: Petr Kulhavy <petr@barix.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/usb/da8xx-usb.txt          | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/da8xx-usb.txt

diff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
new file mode 100644
index 0000000..ccb844a
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
@@ -0,0 +1,43 @@
+TI DA8xx MUSB
+~~~~~~~~~~~~~
+For DA8xx/OMAP-L1x/AM17xx/AM18xx platforms.
+
+Required properties:
+~~~~~~~~~~~~~~~~~~~~
+ - compatible : Should be set to "ti,da830-musb".
+
+ - reg: Offset and length of the USB controller register set.
+
+ - interrupts: The USB interrupt number.
+
+ - interrupt-names: Should be set to "mc".
+
+ - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg".
+
+ - phys: Phandle for the PHY device
+
+ - phy-names: Should be "usb-phy"
+
+Optional properties:
+~~~~~~~~~~~~~~~~~~~~
+ - vbus-supply: Phandle to a regulator providing the USB bus power.
+
+Example:
+	usb_phy: usb-phy {
+		compatible = "ti,da830-usb-phy";
+		#phy-cells = <0>;
+		status = "okay";
+	};
+	usb0: usb@200000 {
+		compatible = "ti,da830-musb";
+		reg =   <0x00200000 0x10000>;
+		interrupts = <58>;
+		interrupt-names = "mc";
+
+		dr_mode = "host";
+		vbus-supply = <&usb_vbus>;
+		phys = <&usb_phy 0>;
+		phy-names = "usb-phy";
+
+		status = "okay";
+	};
-- 
2.7.3

[toc] | [prev] | [next] | [standalone]

#1514658 — [PATCH v4 4/4] ARM: dts: da850: Add the usb otg device node

This adds the device tree node for the usb otg
controller present in the da850 family of SoC's.
This also enables the otg usb controller for the lcdk board.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
 arch/arm/boot/dts/da850-lcdk.dts |  8 ++++++++
 arch/arm/boot/dts/da850.dtsi     | 15 +++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
index 7b8ab21..9f5040c 100644
--- a/arch/arm/boot/dts/da850-lcdk.dts
+++ b/arch/arm/boot/dts/da850-lcdk.dts
@@ -158,6 +158,14 @@
 	rx-num-evt = <32>;
 };
 
+&usb_phy {
+	status = "okay";
+	};
+
+&usb0 {
+	status = "okay";
+};
+
 &aemif {
 	pinctrl-names = "default";
 	pinctrl-0 = <&nand_pins>;
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index f79e1b9..322a31a 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -372,6 +372,21 @@
 					>;
 			status = "disabled";
 		};
+		usb_phy: usb-phy {
+			compatible = "ti,da830-usb-phy";
+			#phy-cells = <1>;
+			status = "disabled";
+		};
+		usb0: usb@200000 {
+			compatible = "ti,da830-musb";
+			reg = <0x200000 0x10000>;
+			interrupts = <58>;
+			interrupt-names = "mc";
+			dr_mode = "otg";
+			phys = <&usb_phy 0>;
+			phy-names = "usb-phy";
+			status = "disabled";
+		};
 		gpio: gpio@226000 {
 			compatible = "ti,dm6441-gpio";
 			gpio-controller;
-- 
2.7.3

[toc] | [prev] | [next] | [standalone]

#1514661 — [PATCH v4 2/4] usb: musb: core: added helper function for parsing DT

From: Petr Kulhavy <petr@barix.com>

This adds the function musb_get_mode() to get the DT property "dr_mode"

Signed-off-by: Petr Kulhavy <petr@barix.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: David Lechner <david@lechnology.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
---
 drivers/usb/musb/musb_core.c | 19 +++++++++++++++++++
 drivers/usb/musb/musb_core.h |  6 ++++++
 2 files changed, 25 insertions(+)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 27dadc0..bba07e7 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -100,6 +100,7 @@
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
 #include <linux/usb.h>
+#include <linux/usb/of.h>
 
 #include "musb_core.h"
 #include "musb_trace.h"
@@ -130,6 +131,24 @@ static inline struct musb *dev_to_musb(struct device *dev)
 	return dev_get_drvdata(dev);
 }
 
+enum musb_mode musb_get_mode(struct device *dev)
+{
+	enum usb_dr_mode mode;
+
+	mode = usb_get_dr_mode(dev);
+	switch (mode) {
+	case USB_DR_MODE_HOST:
+		return MUSB_HOST;
+	case USB_DR_MODE_PERIPHERAL:
+		return MUSB_PERIPHERAL;
+	case USB_DR_MODE_OTG:
+	case USB_DR_MODE_UNKNOWN:
+	default:
+		return MUSB_OTG;
+	}
+}
+EXPORT_SYMBOL_GPL(musb_get_mode);
+
 /*-------------------------------------------------------------------------*/
 
 #ifndef CONFIG_BLACKFIN
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 2cb88a49..76f00f6 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -617,4 +617,10 @@ static inline void musb_platform_post_root_reset_end(struct musb *musb)
 		musb->ops->post_root_reset_end(musb);
 }
 
+/*
+ * gets the "dr_mode" property from DT and converts it into musb_mode
+ * if the property is not found or not recognized returns MUSB_OTG
+ */
+extern enum musb_mode musb_get_mode(struct device *dev);
+
 #endif	/* __MUSB_CORE_H__ */
-- 
2.7.3

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web