[PATCH v6 0/3] arm/dts: Add device tree data for AM33XX devices

Add pinctrl and d_can device tree data to AM33XX family of devices.
First two patches add support for pinctrl DT data and third one
adds dcan DT data.

Reason behind combining these patches is to apply cleanly on
linux-omap tree, because these are sequential patches.

These patches were tested on AM335x-Bone, AM335x-EVM and based
on linux-omap:master with this patch
http://www.mail-archive.com/linux-omap at vger.kernel.org/msg74393.html

Changes from v5:
	- Incorporated Koen's comments on v5 series, user leds
	  trigger modifications.
	- Dropped 4th and 5th patches, submitted v2 versions of
	  those in their corresponding mailing lists.

d_can:
  Changes from v4:
	- Incorporated Tony's comments on v4
	  * Converted all hex numbers to lower-case.
	- Updated C_CAN bindings documentation according to recent
	  changes.

  Changes from v3:
	- Removed d_can1 node from am335x-evm.dts file. Instance
	  one of CAN (d_can1) is available on AM335x-EVM only under
	  a specific CPLD mode selection. am335x-evm.dts does not
          support this mode so remove the d_can1 node.
	- Dropped d_can pinmux settings patch, above comment
	  applies here as well.

  Changes from v2:
	- Incorporated Vaibhav H's comments on v2
	  * Added dcan0 instances to am33xx.dtsi file

  Changes from v1:
	- These two patches separated from c_can DT support
	  patch series.

pinctrl:
  Changes from v4:
	- Incorporated Tony's comments on v4
	  * Converted all hex numbers to lower-case.
	- Added pinctrl api to leds-gpio driver to configure led
	  pins to GPIO mode.

  Changes from v3:
	- Updated the reg length based on latest AM335x TRM.

  Changes from v2:
	- user led pinmux comments updated according to Tony's
	  comment.

  Changes from v1:
	- Rebased the patches based on latest pinctrl-single driver

AnilKumar Ch (3):
  arm/dts: AM33XX: Add basic pinctrl device tree data
  arm/dts: AM33XX: Configure pinmuxs for user leds control on Bone
  arm/dts: AM33XX: Add D_CAN device tree data

 arch/arm/boot/dts/am335x-bone.dts |   43 +++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/am33xx.dtsi     |   27 +++++++++++++++++++++++
 2 files changed, 70 insertions(+)

-- 
1.7.9.5

Adds basic pinctrl device tree data for AM33XX family of devices.
This patch is based on the pinctrl-single driver.

Signed-off-by: AnilKumar Ch <redacted>
---
 arch/arm/boot/dts/am33xx.dtsi |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index be43511..bf5f713 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi

@@ -40,6 +40,15 @@
 		};
 	};
 
+	am3358_pinmux: pinmux at 44e10800 {
+		compatible = "pinctrl-single";
+		reg = <0x44e10800 0x0238>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-single,register-width = <32>;
+		pinctrl-single,function-mask = <0x7f>;
+	};
+
 	/*
 	 * XXX: Use a flat representation of the AM33XX interconnect.
 	 * The real AM33XX interconnect network is quite complex.Since

-- 
1.7.9.5

* AnilKumar Ch [off-list ref] [120905 04:41]:

Sorry meant to comment here on the am3358_pinmux naming vs am33xx_pinmux
naming, please check the comment in the earlier version of this patch.

Regards,

Tony

Adds GPIO pinctrl nodes to am3358_pinmux master node to control
user leds (USR0, USR1, USR2 and USR3) present on BeagleBone.

[koen at dominion.thruhere.net: led0, led1 suggested by koen]
Signed-off-by: AnilKumar Ch <redacted>
---
 arch/arm/boot/dts/am335x-bone.dts |   43 +++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index c634f87..822efe6 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts

@@ -18,11 +18,54 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
+	am3358_pinmux: pinmux at 44e10800 {
+		userled_pins: pinmux_userled_pins {
+			pinctrl-single,pins = <
+				0x54 0x7	/* gpmc_a5.gpio1_21, OUTPUT | MODE7 */
+				0x58 0x17	/* gpmc_a6.gpio1_22, OUTPUT_PULLUP | MODE7 */
+				0x5c 0x7	/* gpmc_a7.gpio1_23, OUTPUT | MODE7 */
+				0x60 0x17	/* gpmc_a8.gpio1_24, OUTPUT_PULLUP | MODE7 */
+			>;
+		};
+	};
+
 	ocp {
 		uart1: serial at 44e09000 {
 			status = "okay";
 		};
 
+		leds {
+			compatible = "gpio-leds";
+			pinctrl-names = "default";
+			pinctrl-0 = <&userled_pins>;
+
+			heartbeat {
+				label = "beaglebone:green:usr0";
+				gpios = <&gpio2 21 0>;
+				linux,default-trigger = "heartbeat";
+				default-state = "off";
+			};
+
+			mmc {
+				label = "beaglebone:green:usr1";
+				gpios = <&gpio2 22 0>;
+				linux,default-trigger = "mmc0";
+				default-state = "off";
+			};
+
+			led2 {
+				label = "beaglebone:green:usr2";
+				gpios = <&gpio2 23 0>;
+				default-state = "off";
+			};
+
+			led3 {
+				label = "beaglebone:green:usr3";
+				gpios = <&gpio2 24 0>;
+				default-state = "off";
+			};
+		};
+
 		i2c1: i2c at 44e0b000 {
 			status = "okay";
 			clock-frequency = <400000>;

-- 
1.7.9.5

* AnilKumar Ch [off-list ref] [120905 04:42]:

Just checking.. am3358_pinmux should be am33xx_pinmux in this patch
too as discussed.

Regards,

Tony

Add Bosch D_CAN controller device tree data to AM33XX dtsi
file by adding d_can device nodes with all the necessary
parameters.

Signed-off-by: AnilKumar Ch <redacted>
---
 arch/arm/boot/dts/am33xx.dtsi |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index bf5f713..ab744d6 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi

@@ -177,5 +177,23 @@
 			compatible = "ti,omap3-wdt";
 			ti,hwmods = "wd_timer2";
 		};
+
+		dcan0: d_can at 481cc000 {
+			compatible = "bosch,d_can";
+			ti,hwmods = "d_can0";
+			reg = <0x481cc000 0x2000>;
+			interrupts = <52>;
+			interrupt-parent = <&intc>;
+			status = "disabled";
+		};
+
+		dcan1: d_can at 481d0000 {
+			compatible = "bosch,d_can";
+			ti,hwmods = "d_can1";
+			reg = <0x481d0000 0x2000>;
+			interrupts = <55>;
+			interrupt-parent = <&intc>;
+			status = "disabled";
+		};
 	};
 };

-- 
1.7.9.5