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dwc3-generic: Add select_dr_mode operation

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The select_dr_mode operation is executed when the glue driver is probed.
The role of this optional function is to configure the operating mode
of the controller at the glue level.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Jean-Jacques Hiblot 2018-11-29 10:52:49 +01:00 committed by Marek Vasut
parent 446e3a205b
commit 93991cf196
1 changed files with 26 additions and 0 deletions
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26
drivers/usb/dwc3/dwc3-generic.c
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@ -8,6 +8,7 @@
*/
#include <common.h>
#include <asm-generic/io.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
@ -110,6 +111,12 @@ U_BOOT_DRIVER(dwc3_generic_peripheral) = {
struct dwc3_glue_data {
struct clk_bulk clks;
struct reset_ctl_bulk resets;
fdt_addr_t regs;
};
struct dwc3_glue_ops {
void (*select_dr_mode)(struct udevice *dev, int index,
enum usb_dr_mode mode);
};
static int dwc3_glue_bind(struct udevice *parent)
@ -205,9 +212,14 @@ static int dwc3_glue_clk_init(struct udevice *dev,
static int dwc3_glue_probe(struct udevice *dev)
{
struct dwc3_glue_ops *ops = (struct dwc3_glue_ops *)dev_get_driver_data(dev);
struct dwc3_glue_data *glue = dev_get_platdata(dev);
struct udevice *child = NULL;
int index = 0;
int ret;
glue->regs = dev_read_addr(dev);
ret = dwc3_glue_clk_init(dev, glue);
if (ret)
return ret;
@ -216,6 +228,20 @@ static int dwc3_glue_probe(struct udevice *dev)
if (ret)
return ret;
ret = device_find_first_child(dev, &child);
if (ret)
return ret;
while (child) {
enum usb_dr_mode dr_mode;
dr_mode = usb_get_dr_mode(dev_of_offset(child));
device_find_next_child(&child);
if (ops && ops->select_dr_mode)
ops->select_dr_mode(dev, index, dr_mode);
index++;
}
return 0;
}