diff options
| author | Al Cooper <alcooperx@gmail.com> | 2017-07-19 22:11:42 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-08-15 14:18:57 +0300 |
| commit | c87dca047849b0fd75c48a7e0375afb93047446c (patch) | |
| tree | be15a975582b0d5f12dc8547083097bae7559344 /drivers/usb/gadget/udc/bdc | |
| parent | 7890b16a999f53be4235bd0f1f8329773bd12237 (diff) | |
| download | linux-c87dca047849b0fd75c48a7e0375afb93047446c.tar.xz | |
usb: bdc: Add clock enable for new chips with a separate BDC clock
Newer SoC's have added a BDC clock to the Device Tree, so get
and enable it.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/gadget/udc/bdc')
| -rw-r--r-- | drivers/usb/gadget/udc/bdc/bdc_core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c index e9bd8d4abca0..dda7b438ada8 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_core.c +++ b/drivers/usb/gadget/udc/bdc/bdc_core.c @@ -27,6 +27,7 @@ #include <linux/moduleparam.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/clk.h> #include "bdc.h" #include "bdc_dbg.h" @@ -452,8 +453,22 @@ static int bdc_probe(struct platform_device *pdev) int irq; u32 temp; struct device *dev = &pdev->dev; + struct clk *clk; dev_dbg(dev, "%s()\n", __func__); + + clk = devm_clk_get(dev, "sw_usbd"); + if (IS_ERR(clk)) { + dev_info(dev, "Clock not found in Device Tree\n"); + clk = NULL; + } + + ret = clk_prepare_enable(clk); + if (ret) { + dev_err(dev, "could not enable clock\n"); + return ret; + } + bdc = devm_kzalloc(dev, sizeof(*bdc), GFP_KERNEL); if (!bdc) return -ENOMEM; |