Move core device initialization to a central location in order to share
it with the device mode implementation.
Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
drivers/usb/host/Makefile | 2 +-
drivers/usb/host/isp1760-core.c | 90 +++++++++++++++++++++++++++++++++++++++++
drivers/usb/host/isp1760-core.h | 37 +++++++++++++++++
drivers/usb/host/isp1760-hcd.c | 73 ++++++++-------------------------
drivers/usb/host/isp1760-hcd.h | 8 ++--
drivers/usb/host/isp1760-if.c | 2 +-
6 files changed, 150 insertions(+), 62 deletions(-)
create mode 100644 drivers/usb/host/isp1760-core.c
create mode 100644 drivers/usb/host/isp1760-core.h
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 144c038..ecba12c 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -5,7 +5,7 @@
# tell define_trace.h where to find the xhci trace header
CFLAGS_xhci-trace.o := -I$(src)
-isp1760-y := isp1760-hcd.o isp1760-if.o
+isp1760-y := isp1760-core.o isp1760-hcd.o isp1760-if.o
fhci-y := fhci-hcd.o fhci-hub.o fhci-q.o
fhci-y += fhci-mem.o fhci-tds.o fhci-sched.o
diff --git a/drivers/usb/host/isp1760-core.c b/drivers/usb/host/isp1760-core.c
new file mode 100644
index 0000000..28f8290
--- /dev/null
+++ b/drivers/usb/host/isp1760-core.c
@@ -0,0 +1,90 @@
+/*
+ * Driver for the NXP ISP1760 chip
+ *
+ * Copyright 2014 Laurent Pinchart
+ * Copyright 2007 Sebastian Siewior
+ *
+ * Contacts:
+ * Sebastian Siewior <bige...@linutronix.de>
+ * Laurent Pinchart <laurent.pinch...@ideasonboard.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+
+#include "isp1760-core.h"
+#include "isp1760-hcd.h"
+
+int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
+ int rst_gpio, struct device *dev, unsigned int devflags)
+{
+ struct isp1760_device *isp;
+ int ret;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ /* prevent usb-core allocating DMA pages */
+ dev->dma_mask = NULL;
+
+ isp = kzalloc(sizeof(*isp), GFP_KERNEL);
+ if (!isp)
+ return -ENOMEM;
+
+ isp->rst_gpio = rst_gpio;
+
+ isp->mem_start = mem->start;
+ isp->mem_size = resource_size(mem);
+
+ isp->regs = ioremap(isp->mem_start, isp->mem_size);
+ if (!isp->regs) {
+ ret = -EIO;
+ goto error;
+ }
+
+ isp->hcd.rst_gpio = rst_gpio;
+ ret = isp1760_hcd_register(&isp->hcd, isp->regs, mem, irq, irqflags,
+ dev, devflags);
+ if (ret < 0)
+ goto error;
+
+ dev_set_drvdata(dev, isp);
+
+ return 0;
+
+error:
+ if (isp->regs)
+ iounmap(isp->regs);
+
+ kfree(isp);
+
+ return ret;
+}
+
+void isp1760_unregister(struct device *dev)
+{
+ struct isp1760_device *isp = dev_get_drvdata(dev);
+
+ release_mem_region(isp->mem_start, isp->mem_size);
+
+ isp1760_hcd_unregister(&isp->hcd);
+
+ iounmap(isp->regs);
+
+ if (gpio_is_valid(isp->rst_gpio))
+ gpio_free(isp->rst_gpio);
+
+ kfree(isp);
+}
+
+MODULE_DESCRIPTION("Driver for the ISP1760 USB-controller from NXP");
+MODULE_AUTHOR("Sebastian Siewior <bige...@linuxtronix.de>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/isp1760-core.h b/drivers/usb/host/isp1760-core.h
new file mode 100644
index 0000000..8bd997c
--- /dev/null
+++ b/drivers/usb/host/isp1760-core.h
@@ -0,0 +1,37 @@
+/*
+ * Driver for the NXP ISP1760 chip
+ *
+ * Copyright 2014 Laurent Pinchart
+ * Copyright 2007 Sebastian Siewior
+ *
+ * Contacts:
+ * Sebastian Siewior <bige...@linutronix.de>
+ * Laurent Pinchart <laurent.pinch...@ideasonboard.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _ISP1760_CORE_H_
+#define _ISP1760_CORE_H_
+
+#include <linux/ioport.h>
+
+#include "isp1760-hcd.h"
+
+struct isp1760_device {
+ resource_size_t mem_start;
+ resource_size_t mem_size;
+
+ void __iomem *regs;
+ int rst_gpio;
+
+ struct isp1760_hcd hcd;
+};
+
+int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
+ int rst_gpio, struct device *dev, unsigned int devflags);
+void isp1760_unregister(struct device *dev);
+
+#endif
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 9c8cd37..f903ad9 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -2237,81 +2237,42 @@ void isp1760_deinit_kmem_cache(void)
kmem_cache_destroy(urb_listitem_cachep);
}
-int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
- int rst_gpio, struct device *dev, unsigned int devflags)
+int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
+ struct resource *mem, int irq, unsigned long irqflags,
+ struct device *dev, unsigned int devflags)
{
- struct usb_hcd *hcd = NULL;
- struct isp1760_hcd *priv;
+ struct usb_hcd *hcd;
int ret;
- if (usb_disabled())
- return -ENODEV;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- /* prevent usb-core allocating DMA pages */
- dev->dma_mask = NULL;
-
hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev_name(dev));
- if (!hcd) {
- ret = -ENOMEM;
- goto err_put;
- }
+ if (!hcd)
+ return -ENOMEM;
- priv->hcd = hcd;
*(struct isp1760_hcd **)hcd->hcd_priv = priv;
+ priv->hcd = hcd;
priv->devflags = devflags;
- priv->rst_gpio = rst_gpio;
+
init_memory(priv);
- hcd->regs = ioremap(mem->start, resource_size(mem));
- if (!hcd->regs) {
- ret = -EIO;
- goto err_put;
- }
hcd->irq = irq;
+ hcd->regs = regs;
hcd->rsrc_start = mem->start;
hcd->rsrc_len = resource_size(mem);
ret = usb_add_hcd(hcd, irq, irqflags);
- if (ret)
- goto err_unmap;
- device_wakeup_enable(hcd->self.controller);
+ if (ret) {
+ usb_put_hcd(hcd);
+ return ret;
+ }
- dev_set_drvdata(dev, priv);
+ device_wakeup_enable(hcd->self.controller);
return 0;
-
-err_unmap:
- iounmap(hcd->regs);
-
-err_put:
- usb_put_hcd(hcd);
- kfree(priv);
-
- return ret;
}
-void isp1760_unregister(struct device *dev)
+void isp1760_hcd_unregister(struct isp1760_hcd *priv)
{
- struct isp1760_hcd *priv = dev_get_drvdata(dev);
- struct usb_hcd *hcd = priv->hcd;
-
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-
- usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- usb_put_hcd(hcd);
-
- if (gpio_is_valid(priv->rst_gpio))
- gpio_free(priv->rst_gpio);
-
- kfree(priv);
+ usb_remove_hcd(priv->hcd);
+ usb_put_hcd(priv->hcd);
}
-
-MODULE_DESCRIPTION("Driver for the ISP1760 USB-controller from NXP");
-MODULE_AUTHOR("Sebastian Siewior <bige...@linuxtronix.de>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h
index 3ece078..51996a2 100644
--- a/drivers/usb/host/isp1760-hcd.h
+++ b/drivers/usb/host/isp1760-hcd.h
@@ -84,10 +84,10 @@ struct isp1760_hcd {
int rst_gpio;
};
-/* exports for if */
-int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
- int rst_gpio, struct device *dev, unsigned int devflags);
-void isp1760_unregister(struct device *dev);
+int isp1760_hcd_register(struct isp1760_hcd *priv, void __iomem *regs,
+ struct resource *mem, int irq, unsigned long irqflags,
+ struct device *dev, unsigned int devflags);
+void isp1760_hcd_unregister(struct isp1760_hcd *priv);
int isp1760_init_kmem_once(void);
void isp1760_deinit_kmem_cache(void);
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index 2880604..16db1be 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -16,7 +16,7 @@
#include <linux/usb/isp1760.h>
#include <linux/usb/hcd.h>
-#include "isp1760-hcd.h"
+#include "isp1760-core.h"
#include "isp1760-regs.h"
#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
--
2.0.4
--
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