linux-kernel - [PATCH 13/24] ARM: OMAP3: omap3evm: Adapt to ehci-omap changes

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Message-ID: <1363088606-2692-14-git-send-email-rogerq@ti.com>
Date:	Tue, 12 Mar 2013 13:43:15 +0200
From:	Roger Quadros <rogerq@...com>
To:	<tony@...mide.com>
CC:	<balbi@...com>, <b-cousson@...com>, <linux-kernel@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<devicetree-discuss@...ts.ozlabs.org>, <rogerq@...com>
Subject: [PATCH 13/24] ARM: OMAP3: omap3evm: Adapt to ehci-omap changes

Add platform device for 'nop-usb-xceiv'. This will be used as a
PHY for HS USB Port 2, so provide binding information for it.

Model RESET for HS USB Port 2 as GPIO fixed regulator and link
it to the 'nop-usb-xceiv' PHY.

Signed-off-by: Roger Quadros <rogerq@...com>
Acked-by: Felipe Balbi <balbi@...com>
---
 arch/arm/mach-omap2/board-omap3evm.c |   62 ++++++++++++++++++++++++++++------
 1 files changed, 51 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 48789e0..5da465e 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -34,6 +34,7 @@
 #include <linux/usb/otg.h>
 #include <linux/usb/musb.h>
 #include <linux/usb/nop-usb-xceiv.h>
+#include <linux/usb/phy.h>
 #include <linux/smsc911x.h>
 
 #include <linux/wl12xx.h>
@@ -539,17 +540,51 @@ static int __init omap3_evm_i2c_init(void)
 	return 0;
 }
 
-static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
+/* 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,
+};
 
-	.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
-	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
-	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
+/* 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"),
+};
 
-	.phy_reset  = true,
-	/* PHY reset GPIO will be runtime programmed based on EVM version */
-	.reset_gpio_port[0]  = -EINVAL,
-	.reset_gpio_port[1]  = -EINVAL,
-	.reset_gpio_port[2]  = -EINVAL
+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 = -1,		/* set at runtime */
+	.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 platform_device *omap3evm_devices[] __initdata = {
+	&hsusb2_phy_device,
+	&hsusb2_reset_device,
+};
+
+static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
+	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 };
 
 #ifdef CONFIG_OMAP_MUX
@@ -725,7 +760,7 @@ static void __init omap3_evm_init(void)
 
 		/* setup EHCI phy reset config */
 		omap_mux_init_gpio(21, OMAP_PIN_INPUT_PULLUP);
-		usbhs_bdata.reset_gpio_port[1] = 21;
+		hsusb2_reset_config.gpio = 21;
 
 		/* EVM REV >= E can supply 500mA with EXTVBUS programming */
 		musb_board_data.power = 500;
@@ -733,10 +768,15 @@ static void __init omap3_evm_init(void)
 	} else {
 		/* setup EHCI phy reset on MDC */
 		omap_mux_init_gpio(135, OMAP_PIN_OUTPUT);
-		usbhs_bdata.reset_gpio_port[1] = 135;
+		hsusb2_reset_config.gpio = 135;
 	}
 	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 	usb_musb_init(&musb_board_data);
+
+	platform_add_devices(omap3evm_devices, ARRAY_SIZE(omap3evm_devices));
+	/* PHY on HSUSB Port 2 i.e. index 1 */
+	usb_bind_phy("ehci-omap.0", 1, "nop_usb_xceiv.2");
+
 	usbhs_init(&usbhs_bdata);
 	board_nand_init(omap3evm_nand_partitions,
 			ARRAY_SIZE(omap3evm_nand_partitions), NAND_CS,
-- 
1.7.4.1

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