CW integration and minnow bringup

  * create minnow machine type
  * create Android makefile
  * add pre-commit syntax check
  * enable -Werror
  * Add drivers: CPCAP, TPS65xxx, m4sensorhub, atmxt, lm3535,
                 usb gadget, minnow display, TI 12xx wireless

Change-Id: I7962f5e1256715f2452aed5a62a4f2f2383d5046

1 files changed, 211 insertions, 0 deletions

diff --git a/drivers/usb/phy/cpcap-usb.c b/drivers/usb/phy/cpcap-usb.c
new file mode 100644
index 00000000000..6e7bc16b695
--- /dev/null
+++ b/drivers/usb/phy/cpcap-usb.c
@@ -0,0 +1,211 @@
+/*
+ * cpcap_usb - CPCAP USB transceiver, talking to OMAP OTG controller
+ *
+ * Copyright (C) 2004-2007 Texas Instruments
+ * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2009 Google, Inc.
+ * Contact: Erik Gilling <konkers@android.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Based on twl4030-usb.c
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/usb/otg.h>
+#include <linux/spi/cpcap.h>
+#include <linux/spi/cpcap-regbits.h>
+
+enum linkstat {
+	USB_LINK_UNKNOWN = 0,
+	USB_LINK_NONE,
+	USB_LINK_VBUS,
+	USB_LINK_ID,
+};
+
+struct cpcap_usb {
+	//struct otg_transceiver	otg;
+	struct usb_phy		phy;
+	struct device		*dev;
+
+	struct cpcap_device	*cpcap;
+
+	/* for vbus reporting with irqs disabled */
+	spinlock_t		lock;
+
+	int			irq;
+	u8			linkstat;
+	u8			asleep;
+	bool			irq_enabled;
+};
+
+static int cpcap_set_suspend(struct usb_phy *x, int suspend)
+{
+	return 0;
+}
+
+
+static int cpcap_set_peripheral(struct usb_otg *otg,
+		struct usb_gadget *gadget)
+{
+    struct usb_phy	*phy = otg->phy;
+
+	otg->gadget = gadget;
+	if (!gadget)
+		phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int cpcap_set_host(struct usb_otg *otg, struct usb_bus *host)
+{
+	struct usb_phy	*phy = otg->phy;
+
+	otg->host = host;
+	if (!host)
+		phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+
+static int cpcap_usb_setup(struct cpcap_usb *cpcap)
+{
+	unsigned short mask;
+	unsigned short value;
+	int r;
+
+	r = cpcap_regacc_read(cpcap->cpcap, CPCAP_REG_INTS2, &value);
+
+	if (value & CPCAP_BIT_SE1_S)
+		mask = CPCAP_BIT_VBUSEN_SPI | CPCAP_BIT_VBUSPU_SPI |
+			CPCAP_BIT_SUSPEND_SPI | CPCAP_BIT_ULPI_SPI_SEL;
+	else
+		mask = CPCAP_BIT_VBUSEN_SPI | CPCAP_BIT_VBUSPU_SPI |
+			CPCAP_BIT_DMPD_SPI | CPCAP_BIT_DPPD_SPI |
+			CPCAP_BIT_SUSPEND_SPI | CPCAP_BIT_PU_SPI |
+			CPCAP_BIT_ULPI_SPI_SEL;
+
+	r = cpcap_regacc_write(cpcap->cpcap, CPCAP_REG_USBC3, 0x0, mask);
+	if (r < 0) {
+		dev_err(cpcap->dev,
+			"Can't disable SPI control of CPCAP transceiver\n");
+		return r;
+	}
+	return 0;
+}
+static int cpcap_usb_set_vbus(struct usb_otg *otg, bool enabled)
+{
+	return 0;
+}
+static int cpcap_usb_start_srp(struct usb_otg *otg)
+{
+	return 0;
+}
+static int  cpcap_usb_probe(struct platform_device *pdev)
+{
+
+	struct cpcap_usb	*cpcap;
+	struct usb_otg			*otg;
+	int err;
+	cpcap = devm_kzalloc(&pdev->dev, sizeof(*cpcap), GFP_KERNEL);
+	if (!cpcap) {
+		dev_err(&pdev->dev, "unable to allocate memory for cpcap PHY\n");
+		return -ENOMEM;
+	}
+
+	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
+	if (!otg) {
+		dev_err(&pdev->dev, "unable to allocate memory for USB OTG\n");
+		return -ENOMEM;
+	}
+
+	cpcap->dev		= &pdev->dev;
+	cpcap->phy.dev		= cpcap->dev;
+	cpcap->phy.label		= "cpcap";
+	cpcap->phy.set_suspend	= cpcap_set_suspend;
+	cpcap->phy.otg		= otg;
+	cpcap->phy.type		= USB_PHY_TYPE_USB2;
+	cpcap->asleep			= 1;
+	cpcap->cpcap			= pdev->dev.platform_data;
+
+
+	otg->set_host		= cpcap_set_host;
+	otg->set_peripheral	= cpcap_set_peripheral;
+	otg->set_vbus		= cpcap_usb_set_vbus;
+	otg->start_srp		= cpcap_usb_start_srp;
+	otg->phy		= &cpcap->phy;
+
+	spin_lock_init(&cpcap->lock);
+	usb_add_phy_dev(&cpcap->phy);
+
+	platform_set_drvdata(pdev, cpcap);
+
+	
+	err = cpcap_usb_setup(cpcap);
+	if (err < 0)
+		goto err0;
+	return 0;
+
+err0:
+	usb_remove_phy(&cpcap->phy);
+	devm_kfree(&pdev->dev,cpcap);
+	devm_kfree(&pdev->dev,otg);
+	return err;
+}
+
+static int  cpcap_usb_remove(struct platform_device *pdev)
+{
+	struct cpcap_usb *cpcap = platform_get_drvdata(pdev);
+	devm_kfree(&pdev->dev,cpcap);
+
+	return 0;
+}
+
+static struct platform_driver cpcap_usb_driver = {
+	.probe		= cpcap_usb_probe,
+	.remove		= (cpcap_usb_remove),
+	.driver		= {
+		.name	= "cpcap_usb",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init cpcap_usb_init(void)
+{
+	return cpcap_driver_register(&cpcap_usb_driver);
+}
+subsys_initcall(cpcap_usb_init);
+
+static void __exit cpcap_usb_exit(void)
+{
+	platform_driver_unregister(&cpcap_usb_driver);
+}
+module_exit(cpcap_usb_exit);
+
+
+
+
+MODULE_ALIAS("platform:cpcap_usb");
+MODULE_DESCRIPTION("CPCAP USB transceiver driver");
+MODULE_LICENSE("GPL");