All of lore.kernel.org
 help / color / mirror / Atom feed
From: Roger Quadros <rogerq@ti.com>
To: <balbi@ti.com>, <tony@atomide.com>, <myungjoo.ham@samsung.com>,
	<cw00.choi@samsung.com>
Cc: <george.cherian@ti.com>, <nsekhar@ti.com>,
	<devicetree@vger.kernel.org>, <linux-usb@vger.kernel.org>,
	<linux-omap@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Roger Quadros <rogerq@ti.com>
Subject: [PATCH 4/5] ARM: dts: dra72-evm: Add extcon nodes for USB
Date: Mon, 19 Jan 2015 19:52:21 +0200	[thread overview]
Message-ID: <1421689942-10201-5-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1421689942-10201-1-git-send-email-rogerq@ti.com>

On this EVM, the USB cable state has to be determined via the
ID pin tied to a GPIO line. We use the gpio-usb-extcon driver
to read the ID pin and the extcon framework to forward
the USB cable state information to the USB driver so the
controller can be configured in the right mode (host/peripheral).

Gets USB peripheral mode to work on this EVM.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 arch/arm/boot/dts/dra72-evm.dts | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 89085d0..d93a98f 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 
 #include "dra72x.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "TI DRA722";
@@ -24,6 +25,16 @@
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 	};
+
+	extcon_usb1: extcon_usb1 {
+		compatible = "linux,extcon-usb";
+		id-gpio = <&pcf_gpio_21 1 GPIO_ACTIVE_HIGH>;
+	};
+
+	extcon_usb2: extcon_usb2 {
+		compatible = "linux,extcon-usb";
+		id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &dra7_pmx_core {
@@ -243,6 +254,18 @@
 			ti,palmas-long-press-seconds = <6>;
 		};
 	};
+
+	pcf_gpio_21: gpio@21 {
+		compatible = "ti,pcf8575";
+		reg = <0x21>;
+		lines-initial-states = <0x1408>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
 };
 
 &uart1 {
@@ -345,6 +368,14 @@
 	phy-supply = <&ldo4_reg>;
 };
 
+&omap_dwc3_1 {
+	extcon = <&extcon_usb1>;
+};
+
+&omap_dwc3_2 {
+	extcon = <&extcon_usb2>;
+};
+
 &usb1 {
 	dr_mode = "peripheral";
 	pinctrl-names = "default";
-- 
2.1.0


WARNING: multiple messages have this Message-ID (diff)
From: Roger Quadros <rogerq@ti.com>
To: balbi@ti.com, tony@atomide.com, myungjoo.ham@samsung.com,
	cw00.choi@samsung.com
Cc: george.cherian@ti.com, nsekhar@ti.com,
	devicetree@vger.kernel.org, linux-usb@vger.kernel.org,
	linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
	Roger Quadros <rogerq@ti.com>
Subject: [PATCH 4/5] ARM: dts: dra72-evm: Add extcon nodes for USB
Date: Mon, 19 Jan 2015 19:52:21 +0200	[thread overview]
Message-ID: <1421689942-10201-5-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1421689942-10201-1-git-send-email-rogerq@ti.com>

On this EVM, the USB cable state has to be determined via the
ID pin tied to a GPIO line. We use the gpio-usb-extcon driver
to read the ID pin and the extcon framework to forward
the USB cable state information to the USB driver so the
controller can be configured in the right mode (host/peripheral).

Gets USB peripheral mode to work on this EVM.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 arch/arm/boot/dts/dra72-evm.dts | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 89085d0..d93a98f 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 
 #include "dra72x.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "TI DRA722";
@@ -24,6 +25,16 @@
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 	};
+
+	extcon_usb1: extcon_usb1 {
+		compatible = "linux,extcon-usb";
+		id-gpio = <&pcf_gpio_21 1 GPIO_ACTIVE_HIGH>;
+	};
+
+	extcon_usb2: extcon_usb2 {
+		compatible = "linux,extcon-usb";
+		id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &dra7_pmx_core {
@@ -243,6 +254,18 @@
 			ti,palmas-long-press-seconds = <6>;
 		};
 	};
+
+	pcf_gpio_21: gpio@21 {
+		compatible = "ti,pcf8575";
+		reg = <0x21>;
+		lines-initial-states = <0x1408>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
 };
 
 &uart1 {
@@ -345,6 +368,14 @@
 	phy-supply = <&ldo4_reg>;
 };
 
+&omap_dwc3_1 {
+	extcon = <&extcon_usb1>;
+};
+
+&omap_dwc3_2 {
+	extcon = <&extcon_usb2>;
+};
+
 &usb1 {
 	dr_mode = "peripheral";
 	pinctrl-names = "default";
-- 
2.1.0

  parent reply	other threads:[~2015-01-19 17:52 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-19 17:52 [PATCH 0/5] extcon: usb: Introduce USB GPIO extcon driver. Fix DRA7 USB Roger Quadros
2015-01-19 17:52 ` Roger Quadros
2015-01-19 17:52 ` [PATCH 1/5] extcon: gpio-usb: Introduce gpio usb extcon driver Roger Quadros
2015-01-19 17:52   ` Roger Quadros
2015-01-20 19:00   ` Felipe Balbi
2015-01-20 19:00     ` Felipe Balbi
2015-01-21  5:28   ` Chanwoo Choi
2015-01-21  5:28     ` Chanwoo Choi
2015-01-22 13:27     ` Roger Quadros
2015-01-22 13:27       ` Roger Quadros
2015-01-19 17:52 ` [PATCH 2/5] usb: extcon: Fix USB-Host cable name Roger Quadros
2015-01-19 17:52   ` Roger Quadros
2015-01-20 19:01   ` Felipe Balbi
2015-01-20 19:01     ` Felipe Balbi
2015-01-19 17:52 ` [PATCH 3/5] ARM: dts: dra7-evm: Add extcon nodes for USB Roger Quadros
2015-01-19 17:52   ` Roger Quadros
2015-01-20 19:02   ` Felipe Balbi
2015-01-20 19:02     ` Felipe Balbi
2015-01-19 17:52 ` Roger Quadros [this message]
2015-01-19 17:52   ` [PATCH 4/5] ARM: dts: dra72-evm: " Roger Quadros
2015-01-20 19:02   ` Felipe Balbi
2015-01-20 19:02     ` Felipe Balbi
2015-01-19 17:52 ` [PATCH 5/5] ARM: omap2plus_defconfig: Enable PCF857X and EXTCON_GPIO_USB Roger Quadros
2015-01-19 17:52   ` Roger Quadros
2015-01-19 18:45   ` Tony Lindgren
2015-01-19 19:38     ` Tony Lindgren
2015-01-20  9:26       ` Roger Quadros
2015-01-20  9:26         ` Roger Quadros
2015-01-20 19:02 ` [PATCH 0/5] extcon: usb: Introduce USB GPIO extcon driver. Fix DRA7 USB Felipe Balbi
2015-01-20 19:02   ` Felipe Balbi
2015-01-22 13:32   ` Roger Quadros
2015-01-22 13:32     ` Roger Quadros
2015-01-22 14:57     ` Roger Quadros
2015-01-22 14:57       ` Roger Quadros
2015-01-22 20:29       ` Felipe Balbi
2015-01-22 20:29         ` Felipe Balbi
2015-01-23  7:26         ` Roger Quadros
2015-01-23  7:26           ` Roger Quadros
2015-01-23 16:19           ` Felipe Balbi
2015-01-23 16:19             ` Felipe Balbi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1421689942-10201-5-git-send-email-rogerq@ti.com \
    --to=rogerq@ti.com \
    --cc=balbi@ti.com \
    --cc=cw00.choi@samsung.com \
    --cc=devicetree@vger.kernel.org \
    --cc=george.cherian@ti.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-omap@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=myungjoo.ham@samsung.com \
    --cc=nsekhar@ti.com \
    --cc=tony@atomide.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.