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Date: Tue, 12 Mar 2013 13:43:20 +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 18/24] ARM: OMAP: zoom: 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-zoom.c | 56 +++++++++++++++++++++++++++++++++----
1 files changed, 50 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c
index 5e4d4c9..5c5deaa 100644
--- a/arch/arm/mach-omap2/board-zoom.c
+++ b/arch/arm/mach-omap2/board-zoom.c
@@ -17,6 +17,9 @@
#include <linux/gpio.h>
#include <linux/i2c/twl.h>
#include <linux/mtd/nand.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>
@@ -92,14 +95,51 @@ static struct mtd_partition zoom_nand_partitions[] = {
},
};
+/* 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 = ZOOM3_EHCI_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 platform_device *zoom3_devices[] __initdata = {
+ &hsusb2_phy_device,
+ &hsusb2_reset_device,
+};
+
static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
- .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
- .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
- .phy_reset = true,
- .reset_gpio_port[0] = -EINVAL,
- .reset_gpio_port[1] = ZOOM3_EHCI_RESET_GPIO,
- .reset_gpio_port[2] = -EINVAL,
};
static void __init omap_zoom_init(void)
@@ -109,6 +149,10 @@ static void __init omap_zoom_init(void)
} else if (machine_is_omap_zoom3()) {
omap3_mux_init(board_mux, OMAP_PACKAGE_CBP);
omap_mux_init_gpio(ZOOM3_EHCI_RESET_GPIO, OMAP_PIN_OUTPUT);
+
+ platform_add_devices(zoom3_devices, ARRAY_SIZE(zoom3_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);
}
--
1.7.4.1
--
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