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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>
This commit is contained in:
Al Cooper 2017-07-19 15:11:42 -04:00 committed by Felipe Balbi
parent 7890b16a99
commit c87dca0478
1 changed files with 15 additions and 0 deletions
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15
drivers/usb/gadget/udc/bdc/bdc_core.c
View File

@ -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;