linux-kernel - [PATCH 21/30] ARM: OMAP3: cm-t3517: Adapt to ehci-omap changes

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Message-ID: <1359372631-8180-22-git-send-email-rogerq@ti.com>
Date:	Mon, 28 Jan 2013 13:30:22 +0200
From:	Roger Quadros <rogerq@...com>
To:	<tony@...mide.com>
CC:	<linux@....linux.org.uk>, <sameo@...ux.intel.com>, <balbi@...com>,
	<stern@...land.harvard.edu>, <gregkh@...uxfoundation.org>,
	<eballetbo@...il.com>, <javier@...hile0.org>,
	<sshtylyov@...sta.com>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 21/30] ARM: OMAP3: cm-t3517: Adapt to ehci-omap changes

Add 2 platform devices for 'nop-usb-xceiv'. These will be used
as PHYs for HS USB ports 1 and 2 so provide binding information
for them.

Model RESET for HS USB Ports 1 and 2 as GPIO fixed regulators and
link them to the 2 PHYs we just created.

Signed-off-by: Roger Quadros <rogerq@...com>
---
 arch/arm/mach-omap2/board-cm-t3517.c |   97 ++++++++++++++++++++++++++++++++--
 1 files changed, 92 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c
index cfa9098..2ba97c5 100644
--- a/arch/arm/mach-omap2/board-cm-t3517.c
+++ b/arch/arm/mach-omap2/board-cm-t3517.c
@@ -33,6 +33,9 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/can/platform/ti_hecc.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+#include <linux/usb/phy.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -166,15 +169,92 @@ static inline void cm_t3517_init_rtc(void) {}
 #define HSUSB2_RESET_GPIO	(147)
 #define USB_HUB_RESET_GPIO	(152)
 
+/* PHY device on HS USB Port 1 i.e. nop_usb_xceiv.1 */
+static struct platform_device hsusb1_phy_device = {
+	.name = "nop_usb_xceiv",
+	.id = 1,
+};
+
+/* Regulator for HS USB Port 1 PHY reset */
+static struct regulator_consumer_supply hsusb1_reset_supplies[] = {
+	/* Link PHY device to reset supply so it gets used in the PHY driver */
+	REGULATOR_SUPPLY("reset", "nop_usb_xceiv.1"),
+};
+
+static struct regulator_init_data hsusb1_reset_data = {
+	.constraints = {
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.consumer_supplies = hsusb1_reset_supplies,
+	.num_consumer_supplies = ARRAY_SIZE(hsusb1_reset_supplies),
+};
+
+static struct fixed_voltage_config hsusb1_reset_config = {
+	.supply_name = "hsusb1_reset",
+	.microvolts = 3300000,
+	.gpio = HSUSB1_RESET_GPIO,
+	.startup_delay = 70000, /* 70msec */
+	.enable_high = 1,
+	.enabled_at_boot = 0,   /* keep in RESET */
+	.init_data = &hsusb1_reset_data,
+};
+
+static struct platform_device hsusb1_reset_device = {
+	.name = "reg-fixed-voltage",
+	.id = PLATFORM_DEVID_AUTO,
+	.dev = {
+		.platform_data = &hsusb1_reset_config,
+	},
+};
+
+/* PHY device on HS USB Port 2 i.e. nop_usb_xceiv.2 */
+static struct platform_device hsusb2_phy_device = {
+	.name = "nop_usb_xceiv",
+	.id = 2,
+};
+
+/* Regulator for HS USB Port 2 PHY reset */
+static struct regulator_consumer_supply hsusb2_reset_supplies[] = {
+	/* Link PHY device to reset supply so it gets used in the PHY driver */
+	REGULATOR_SUPPLY("reset", "nop_usb_xceiv.2"),
+};
+
+static struct regulator_init_data hsusb2_reset_data = {
+	.constraints = {
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.consumer_supplies = hsusb2_reset_supplies,
+	.num_consumer_supplies = ARRAY_SIZE(hsusb2_reset_supplies),
+};
+
+static struct fixed_voltage_config hsusb2_reset_config = {
+	.supply_name = "hsusb2_reset",
+	.microvolts = 3300000,
+	.gpio = HSUSB2_RESET_GPIO,
+	.startup_delay = 70000, /* 70msec */
+	.enable_high = 1,
+	.enabled_at_boot = 0,   /* keep in RESET */
+	.init_data = &hsusb2_reset_data,
+};
+
+static struct platform_device hsusb2_reset_device = {
+	.name = "reg-fixed-voltage",
+	.id = PLATFORM_DEVID_AUTO,
+	.dev = {
+		.platform_data = &hsusb2_reset_config,
+	},
+};
+
 static struct usbhs_omap_platform_data cm_t3517_ehci_pdata __initdata = {
 	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
-	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
+};
 
-	.phy_reset  = true,
-	.reset_gpio_port[0]  = HSUSB1_RESET_GPIO,
-	.reset_gpio_port[1]  = HSUSB2_RESET_GPIO,
-	.reset_gpio_port[2]  = -EINVAL,
+static struct platform_device *usbhs_devices[] = {
+	&hsusb1_phy_device,
+	&hsusb1_reset_device,
+	&hsusb2_phy_device,
+	&hsusb2_reset_device,
 };
 
 static int __init cm_t3517_init_usbh(void)
@@ -191,6 +271,13 @@ static int __init cm_t3517_init_usbh(void)
 		msleep(1);
 	}
 
+	platform_add_devices(usbhs_devices, ARRAY_SIZE(usbhs_devices));
+
+	/* PHY on HSUSB Port 1 i.e. index 0 */
+	usb_bind_phy("ehci-omap.0", 0, "nop_usb_xceiv.1");
+	/* PHY on HSUSB Port 2 i.e. index 1 */
+	usb_bind_phy("ehci-omap.0", 1, "nop_usb_xceiv.2");
+
 	usbhs_init(&cm_t3517_ehci_pdata);
 
 	return 0;
-- 
1.7.4.1

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