diff options
| author | Peter Chen <peter.chen@freescale.com> | 2013-08-14 09:44:03 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-14 19:34:17 (GMT) |
| commit | 1542d9c35d8166c54e0616574954a0f48449f331 (patch) | |
| tree | a854d90bee8d676d2e9de526641086f9f5c79056 /drivers/usb/chipidea/core.c | |
| parent | 6a6243b164a9ef51ef8e4f4540cd34b723f74e5c (diff) | |
| download | linux-fsl-qoriq-1542d9c35d8166c54e0616574954a0f48449f331.tar.xz | |
usb: chipidea: move vbus regulator operation to core
The vbus regulator is a common element for USB vbus operation,
So, move it from glue layer to core.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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/core.c')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 5bb3e81..13dbd51 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -65,6 +65,7 @@ #include <linux/usb/chipidea.h> #include <linux/usb/of.h> #include <linux/phy.h> +#include <linux/regulator/consumer.h> #include "ci.h" #include "udc.h" @@ -342,6 +343,24 @@ static irqreturn_t ci_irq(int irq, void *data) return ret; } +static int ci_get_platdata(struct device *dev, + struct ci_hdrc_platform_data *platdata) +{ + /* Get the vbus regulator */ + platdata->reg_vbus = devm_regulator_get(dev, "vbus"); + if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) { + return -EPROBE_DEFER; + } else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) { + platdata->reg_vbus = NULL; /* no vbus regualator is needed */ + } else if (IS_ERR(platdata->reg_vbus)) { + dev_err(dev, "Getting regulator error: %ld\n", + PTR_ERR(platdata->reg_vbus)); + return PTR_ERR(platdata->reg_vbus); + } + + return 0; +} + static DEFINE_IDA(ci_ida); struct platform_device *ci_hdrc_add_device(struct device *dev, @@ -351,6 +370,10 @@ struct platform_device *ci_hdrc_add_device(struct device *dev, struct platform_device *pdev; int id, ret; + ret = ci_get_platdata(dev, platdata); + if (ret) + return ERR_PTR(ret); + id = ida_simple_get(&ci_ida, 0, 0, GFP_KERNEL); if (id < 0) return ERR_PTR(id); |