korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 08:14:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

usb: chipidea: usbmisc: prepare driver to handle more than one soc

Browse Source 
This attaches the usbmisc_ops to the of_device_id data and
makes it possible to define special functions per soc.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
[Alex: fixed one case of line-too-long and one bogus cast to void ptr]
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marc Kleine-Budde 2013-03-30 12:53:59 +02:00 committed by Greg Kroah-Hartman
parent 00b9a1f97d
commit e609108a5b
1 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/usb/chipidea/usbmisc_imx.c
View File

@ -19,13 +19,14 @@
#define USB_DEV_MAX 4
#define BM_OVER_CUR_DIS BIT(7)
#define MX6_BM_OVER_CUR_DIS BIT(7)
struct imx_usbmisc {
void __iomem *base;
spinlock_t lock;
struct clk *clk;
struct usbmisc_usb_device usbdev[USB_DEV_MAX];
const struct usbmisc_ops *ops;
};
static struct imx_usbmisc *usbmisc;
@ -65,7 +66,7 @@ static int usbmisc_imx6q_init(struct device *dev)
if (usbdev->disable_oc) {
spin_lock_irqsave(&usbmisc->lock, flags);
reg = readl(usbmisc->base + usbdev->index * 4);
writel(reg | BM_OVER_CUR_DIS,
writel(reg | MX6_BM_OVER_CUR_DIS,
usbmisc->base + usbdev->index * 4);
spin_unlock_irqrestore(&usbmisc->lock, flags);
}
@ -78,7 +79,10 @@ static const struct usbmisc_ops imx6q_usbmisc_ops = {
};
static const struct of_device_id usbmisc_imx_dt_ids[] = {
{ .compatible = "fsl,imx6q-usbmisc"},
{
.compatible = "fsl,imx6q-usbmisc",
.data = &imx6q_usbmisc_ops,
},
{ /* sentinel */ }
};
@ -87,6 +91,7 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
struct resource *res;
struct imx_usbmisc *data;
int ret;
struct of_device_id *tmp_dev;
if (usbmisc)
return -EBUSY;
@ -116,8 +121,11 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
return ret;
}
tmp_dev = (struct of_device_id *)
of_match_device(usbmisc_imx_dt_ids, &pdev->dev);
data->ops = (const struct usbmisc_ops *)tmp_dev->data;
usbmisc = data;
ret = usbmisc_set_ops(&imx6q_usbmisc_ops);
ret = usbmisc_set_ops(data->ops);
if (ret) {
usbmisc = NULL;
clk_disable_unprepare(data->clk);
@ -129,7 +137,7 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
static int usbmisc_imx_remove(struct platform_device *pdev)
{
usbmisc_unset_ops(&imx6q_usbmisc_ops);
usbmisc_unset_ops(usbmisc->ops);
clk_disable_unprepare(usbmisc->clk);
usbmisc = NULL;
return 0;