116 lines
3.3 KiB
Diff
116 lines
3.3 KiB
Diff
From adbff3a4f93d8501e8ae11906268e21b086d57ed Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
|
Date: Sat, 5 Dec 2015 13:15:07 +0100
|
|
Subject: [PATCH] USB: bcma: separate code initializing USB 2.0 core
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
This splits one big probing function into two smaller ones. The main one
|
|
is now responsible for the generic stuff: allocating memory & enabling
|
|
power using GPIO. The new one contains code that is specific to the USB
|
|
2.0 bcma core.
|
|
This will allow adding support for the USB 3.0 bcma core (handling XHCI)
|
|
in the future.
|
|
|
|
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
---
|
|
drivers/usb/host/bcma-hcd.c | 59 ++++++++++++++++++++++++++++++---------------
|
|
1 file changed, 39 insertions(+), 20 deletions(-)
|
|
|
|
--- a/drivers/usb/host/bcma-hcd.c
|
|
+++ b/drivers/usb/host/bcma-hcd.c
|
|
@@ -35,6 +35,7 @@ MODULE_DESCRIPTION("Common USB driver fo
|
|
MODULE_LICENSE("GPL");
|
|
|
|
struct bcma_hcd_device {
|
|
+ struct bcma_device *core;
|
|
struct platform_device *ehci_dev;
|
|
struct platform_device *ohci_dev;
|
|
struct gpio_desc *gpio_desc;
|
|
@@ -288,31 +289,16 @@ err_alloc:
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
-static int bcma_hcd_probe(struct bcma_device *dev)
|
|
+static int bcma_hcd_usb20_init(struct bcma_hcd_device *usb_dev)
|
|
{
|
|
- int err;
|
|
+ struct bcma_device *dev = usb_dev->core;
|
|
+ struct bcma_chipinfo *chipinfo = &dev->bus->chipinfo;
|
|
u32 ohci_addr;
|
|
- struct bcma_hcd_device *usb_dev;
|
|
- struct bcma_chipinfo *chipinfo;
|
|
-
|
|
- chipinfo = &dev->bus->chipinfo;
|
|
-
|
|
- /* TODO: Probably need checks here; is the core connected? */
|
|
+ int err;
|
|
|
|
if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
|
|
return -EOPNOTSUPP;
|
|
|
|
- usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device),
|
|
- GFP_KERNEL);
|
|
- if (!usb_dev)
|
|
- return -ENOMEM;
|
|
-
|
|
- if (dev->dev.of_node)
|
|
- usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
|
|
- &dev->dev.of_node->fwnode);
|
|
- if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
|
|
- gpiod_direction_output(usb_dev->gpio_desc, 1);
|
|
-
|
|
switch (dev->id.id) {
|
|
case BCMA_CORE_NS_USB20:
|
|
bcma_hcd_init_chip_arm(dev);
|
|
@@ -345,7 +331,6 @@ static int bcma_hcd_probe(struct bcma_de
|
|
goto err_unregister_ohci_dev;
|
|
}
|
|
|
|
- bcma_set_drvdata(dev, usb_dev);
|
|
return 0;
|
|
|
|
err_unregister_ohci_dev:
|
|
@@ -353,6 +338,40 @@ err_unregister_ohci_dev:
|
|
return err;
|
|
}
|
|
|
|
+static int bcma_hcd_probe(struct bcma_device *core)
|
|
+{
|
|
+ int err;
|
|
+ struct bcma_hcd_device *usb_dev;
|
|
+
|
|
+ /* TODO: Probably need checks here; is the core connected? */
|
|
+
|
|
+ usb_dev = devm_kzalloc(&core->dev, sizeof(struct bcma_hcd_device),
|
|
+ GFP_KERNEL);
|
|
+ if (!usb_dev)
|
|
+ return -ENOMEM;
|
|
+ usb_dev->core = core;
|
|
+
|
|
+ if (core->dev.of_node)
|
|
+ usb_dev->gpio_desc = devm_get_gpiod_from_child(&core->dev, "vcc",
|
|
+ &core->dev.of_node->fwnode);
|
|
+ if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
|
|
+ gpiod_direction_output(usb_dev->gpio_desc, 1);
|
|
+
|
|
+ switch (core->id.id) {
|
|
+ case BCMA_CORE_USB20_HOST:
|
|
+ case BCMA_CORE_NS_USB20:
|
|
+ err = bcma_hcd_usb20_init(usb_dev);
|
|
+ if (err)
|
|
+ return err;
|
|
+ break;
|
|
+ default:
|
|
+ return -ENODEV;
|
|
+ }
|
|
+
|
|
+ bcma_set_drvdata(core, usb_dev);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static void bcma_hcd_remove(struct bcma_device *dev)
|
|
{
|
|
struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
|