diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-03-30 11:53:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-30 16:13:57 +0100 |
| commit | e609108a5ba70ecf3b1b6a7e09e5a56244e92926 (patch) | |
| tree | a6a312b02ebe6f4df24a4c5cf859e49745325b17 /drivers/usb/chipidea/usbmisc_imx.c | |
| parent | usb: chipidea: usbmisc: fix a potential race condition (diff) | |
| download | linux-e609108a5ba70ecf3b1b6a7e09e5a56244e92926.tar.xz linux-e609108a5ba70ecf3b1b6a7e09e5a56244e92926.zip | |
usb: chipidea: usbmisc: prepare driver to handle more than one soc
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>
Diffstat (limited to 'drivers/usb/chipidea/usbmisc_imx.c')
| -rw-r--r-- | drivers/usb/chipidea/usbmisc_imx.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index d77e712c6c2d..08b046f9491b 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -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; |