[PATCH 0/5] Amazon Kindle Fire (first generation) codename kc1 support series

[PATCH 0/5] Amazon Kindle Fire (first generation) codename kc1 support series

[Paul Kocialkowski]

This series adds basic support for the Amazon Kindle Fire (first generation)
codename kc1. A few features such as serial, i2c, the internal eMMC, USB gadget
and power button leds.

It requires some TWL-related patches to work properly, in particular:
* pwm: twl: Reliably disable TWL6030 PWMs
* mfd: Add TWL6030 power driver, with minimal support for power off

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[PATCH] ARM: dts: omap3-sniper: Discard deprecated twl4030-power property

[Paul Kocialkowski]

This uses ti,system-power-controller instead of the deprecated ti,use_poweroff
property for powering off.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/omap3-sniper.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-sniper.dts b/arch/arm/boot/dts/omap3-sniper.dts
index 78a1184..0222a33 100644
--- a/arch/arm/boot/dts/omap3-sniper.dts
+++ b/arch/arm/boot/dts/omap3-sniper.dts
@@ -154,9 +154,9 @@
 		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
 		interrupt-parent = <&intc>;
 
-		power {
+		twl_power: power {
 			compatible = "ti,twl4030-power";
-			ti,use_poweroff;
+			ti,system-power-controller;
 		};
 	};
 };
-- 
2.7.4

[PATCH 1/5] devicetree: bindings: Add vendor prefix for Amazon.com, Inc.

[Paul Kocialkowski]

This adds the amazon vendor prefix for Amazon.com, Inc.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 86740d4..54b647c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -16,6 +16,7 @@ al	Annapurna Labs
 allwinner	Allwinner Technology Co., Ltd.
 alphascale	AlphaScale Integrated Circuits Systems, Inc.
 altr	Altera Corp.
+amazon	Amazon.com, Inc.
 amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
 amd	Advanced Micro Devices (AMD), Inc.
 amlogic	Amlogic, Inc.
-- 
2.7.4

Re: [PATCH 1/5] devicetree: bindings: Add vendor prefix for Amazon.com, Inc.

[Rob Herring]

On Tue, Mar 29, 2016 at 09:28:23PM +0200, Paul Kocialkowski wrote:
> This adds the amazon vendor prefix for Amazon.com, Inc.
> 
> Signed-off-by: Paul Kocialkowski <contact-W9ppeneeCTY@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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Re: [PATCH 1/5] devicetree: bindings: Add vendor prefix for Amazon.com, Inc.

[Tony Lindgren]

* Rob Herring <robh@kernel.org> [160401 10:02]:
> On Tue, Mar 29, 2016 at 09:28:23PM +0200, Paul Kocialkowski wrote:
> > This adds the amazon vendor prefix for Amazon.com, Inc.
> > 
> > Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
> > ---
> >  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
> >  1 file changed, 1 insertion(+)
> 
> Acked-by: Rob Herring <robh@kernel.org>

Applying this whole series into omap-for-v4.7/dt thanks.

Tony

[PATCH 2/5] ARM: dts: Amazon Kindle Fire (first generation) codename kc1 basic support

[Paul Kocialkowski]

The Amazon Kindle Fire (first generation) codename kc1 is a tablet that was
released by Amazon back in 2011. It is using an OMAP4430 SoC GP version.

This adds devicetree support for the device, with only a few basic features
supported, such as debug uart, i2c and internal emmc.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/Makefile      |   1 +
 arch/arm/boot/dts/omap4-kc1.dts | 140 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 141 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap4-kc1.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 95c1923..5923334 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -503,6 +503,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-wega-rdk.dtb
 dtb-$(CONFIG_ARCH_OMAP4) += \
 	omap4-duovero-parlor.dtb \
+	omap4-kc1.dtb \
 	omap4-panda.dtb \
 	omap4-panda-a4.dtb \
 	omap4-panda-es.dtb \
diff --git a/arch/arm/boot/dts/omap4-kc1.dts b/arch/arm/boot/dts/omap4-kc1.dts
new file mode 100644
index 0000000..9fe4441
--- /dev/null
+++ b/arch/arm/boot/dts/omap4-kc1.dts
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "omap443x.dtsi"
+
+/ {
+	model = "Amazon Kindle Fire (first generation)";
+	compatible = "amazon,omap4-kc1", "ti,omap4430", "ti,omap4";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>; /* 512 MB */
+	};
+};
+
+&omap4_pmx_core {
+	pinctrl-names = "default";
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x144, PIN_INPUT | MUX_MODE0)		/* uart3_rx_irrx */
+			OMAP4_IOPAD(0x146, PIN_OUTPUT | MUX_MODE0)		/* uart3_tx_irtx */
+		>;
+	};
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x122, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_scl */
+			OMAP4_IOPAD(0x124, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_sda */
+		>;
+	};
+
+	i2c2_pins: pinmux_i2c2_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x126, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c2_scl */
+			OMAP4_IOPAD(0x128, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c2_sda */
+		>;
+	};
+
+	i2c3_pins: pinmux_i2c3_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x12a, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c3_scl */
+			OMAP4_IOPAD(0x12c, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c3_sda */
+		>;
+	};
+
+	i2c4_pins: pinmux_i2c4_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x12e, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c4_scl */
+			OMAP4_IOPAD(0x130, PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c4_sda */
+		>;
+	};
+
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x040, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat0 */
+			OMAP4_IOPAD(0x042, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat1 */
+			OMAP4_IOPAD(0x044, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat2 */
+			OMAP4_IOPAD(0x046, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat3 */
+			OMAP4_IOPAD(0x048, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat4 */
+			OMAP4_IOPAD(0x04a, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat5 */
+			OMAP4_IOPAD(0x04c, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat6 */
+			OMAP4_IOPAD(0x04e, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_dat7 */
+			OMAP4_IOPAD(0x082, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_clk */
+			OMAP4_IOPAD(0x084, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_cmd */
+		>;
+	};
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+
+	interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
+			       &omap4_pmx_core OMAP4_UART3_RX>;
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+
+	clock-frequency = <400000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		/* IRQ# = 7 */
+		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+
+	clock-frequency = <400000>;
+};
+
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c4_pins>;
+
+	clock-frequency = <400000>;
+};
+
+&mmc1 {
+	status = "disabled";
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+
+	vmmc-supply = <&vaux1>;
+	ti,non-removable;
+	bus-width = <8>;
+};
+
+&mmc3 {
+	status = "disabled";
+};
+
+&mmc4 {
+	status = "disabled";
+};
+
+#include "twl6030.dtsi"
+#include "twl6030_omap4.dtsi"
-- 
2.7.4

[PATCH 3/5] ARM: dts: omap4-kc1: USB OTG support

[Paul Kocialkowski]

This adds support for USB OTG on the Kindle Fire (first generation).

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/omap4-kc1.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-kc1.dts b/arch/arm/boot/dts/omap4-kc1.dts
index 9fe4441..0d08f9f 100644
--- a/arch/arm/boot/dts/omap4-kc1.dts
+++ b/arch/arm/boot/dts/omap4-kc1.dts
@@ -71,6 +71,14 @@
 			OMAP4_IOPAD(0x084, PIN_INPUT_PULLUP | MUX_MODE1)	/* sdmmc2_cmd */
 		>;
 	};
+
+	usb_otg_hs_pins: pinmux_usb_otg_hs_pins {
+		pinctrl-single,pins = <
+			OMAP4_IOPAD(0x194, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* usba0_otg_ce */
+			OMAP4_IOPAD(0x196, PIN_INPUT | MUX_MODE0)		/* usba0_otg_dp */
+			OMAP4_IOPAD(0x198, PIN_INPUT | MUX_MODE0)		/* usba0_otg_dm */
+		>;
+	};
 };
 
 &uart3 {
@@ -136,5 +144,18 @@
 	status = "disabled";
 };
 
+&usb_otg_hs {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb_otg_hs_pins>;
+
+	interface-type = <1>;
+	mode = <3>;
+	power = <50>;
+};
+
 #include "twl6030.dtsi"
 #include "twl6030_omap4.dtsi"
+
+&twl_usb_comparator {
+	usb-supply = <&vusb>;
+};
-- 
2.7.4

[PATCH 4/5] ARM: dts: omap4-kc1: LEDs support

[Paul Kocialkowski]

This adds support for the Kindle Fire (first generation) power button LEDs, that
are wired to the TWL6030 PWM outputs.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/omap4-kc1.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-kc1.dts b/arch/arm/boot/dts/omap4-kc1.dts
index 0d08f9f..3681414 100644
--- a/arch/arm/boot/dts/omap4-kc1.dts
+++ b/arch/arm/boot/dts/omap4-kc1.dts
@@ -17,6 +17,22 @@
 		device_type = "memory";
 		reg = <0x80000000 0x20000000>; /* 512 MB */
 	};
+
+	pwmleds {
+		compatible = "pwm-leds";
+
+		green {
+			label = "green";
+			pwms = <&twl_pwm 0 7812500>;
+			max-brightness = <127>;
+		};
+
+		orange {
+			label = "orange";
+			pwms = <&twl_pwm 1 7812500>;
+			max-brightness = <127>;
+		};
+	};
 };
 
 &omap4_pmx_core {
-- 
2.7.4

[PATCH 5/5] ARM: dts: omap4-kc1: Power off support

[Paul Kocialkowski]

This adds support for turning off the main power supply via the TWL6030 on the
Kindle Fire (first generation).

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/omap4-kc1.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-kc1.dts b/arch/arm/boot/dts/omap4-kc1.dts
index 3681414..2251bd5 100644
--- a/arch/arm/boot/dts/omap4-kc1.dts
+++ b/arch/arm/boot/dts/omap4-kc1.dts
@@ -115,6 +115,11 @@
 		reg = <0x48>;
 		/* IRQ# = 7 */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
+
+		twl_power: power {
+			compatible = "ti,twl6030-power";
+			ti,system-power-controller;
+		};
 	};
 };
 
-- 
2.7.4