El 3/7/20 a les 21:10, John Crispin ha escrit:
On 03.07.20 21:07, Luca Olivetti wrote:
El 3/7/20 a les 20:07, Luca Olivetti ha escrit:
El 3/7/20 a les 20:06, John Crispin ha escrit:
On 03.07.20 19:57, Luca Olivetti wrote:
El 3/7/20 a les 19:49, John Crispin ha escrit:
On 03.07.20 19:47, Luca Olivetti wrote:
El 3/7/20 a les 19:37, John Crispin ha escrit:
Why not use the gpio regulator ?
Because I don't know how :-(
https://www.kernel.org/doc/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
Oh, I see, but that's the one I had to *remove* because it didn't
work.
Bye
CONFIG_REGULATOR_GPIO is not enabled in the kernel config
So it's just a matter of adding it to
target/linux/lantiq/xway/config-4.14 after
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
?
(and put back the entry I removed in the dts)
Bye
correct
Thank you, I'm building it now (but my system is slow). I'll report
back if it works.
Nope, it doesn't
printk the driver with a salt shaker and see if it loads and if so where
it breaks
I'm not sure I understand, but I visually checked the code and the only
part where it could return -EPROBE_DEFER is here in dwc/hcd.c
static int dwc2_vbus_supply_init(struct dwc2_hsotg *hsotg)
{
int ret;
hsotg->vbus_supply = devm_regulator_get_optional(hsotg->dev,
"vbus");
if (IS_ERR(hsotg->vbus_supply)) {
ret = PTR_ERR(hsotg->vbus_supply);
hsotg->vbus_supply = NULL;
return ret == -ENODEV ? 0 : ret;
}
return regulator_enable(hsotg->vbus_supply);
}
I suppose it's the call to devm_regulator_get_optional, which should
lead to regulator/core.c
static struct regulator_dev *regulator_dev_lookup(struct device *dev,
const char *supply)
{
struct regulator_dev *r = NULL;
struct device_node *node;
struct regulator_map *map;
const char *devname = NULL;
regulator_supply_alias(&dev, &supply);
/* first do a dt based lookup */
if (dev && dev->of_node) {
node = of_get_regulator(dev, supply);
if (node) {
r = of_find_regulator_by_node(node);
if (r)
return r;
/*
* We have a node, but there is no device.
* assume it has not registered yet.
*/
return ERR_PTR(-EPROBE_DEFER);
}
}
But since I don't really understand what's happening here, I don't know
how to fix it.
I only know that if I remove the regulator from the dts the function
completes (since "node" is not found) and I can then enable the gpio
manually.
Bye
--
Luca
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