Most of the functionality this driver provides can be used by non-hub
devices as well.
To account for the hub-specific code, add a flag to the device data
structure and check its value for hub-specific code.
The 'always_powered_in_supend' attribute is only available for hub
devices, keeping the driver's default behavior for non-hub devices (keep
on in suspend).
Acked-by: Matthias Kaehlcke <m...@chromium.org>
Signed-off-by: Javier Carrasco <javier.carra...@wolfvision.net>
---
drivers/usb/misc/onboard_usb_dev.c | 25 ++++++++++++++++++++++++-
drivers/usb/misc/onboard_usb_dev.h | 10 ++++++++++
2 files changed, 34 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/misc/onboard_usb_dev.c
b/drivers/usb/misc/onboard_usb_dev.c
index 4ae580445408..f1b174503c44 100644
--- a/drivers/usb/misc/onboard_usb_dev.c
+++ b/drivers/usb/misc/onboard_usb_dev.c
@@ -261,7 +261,27 @@ static struct attribute *onboard_dev_attrs[] = {
&dev_attr_always_powered_in_suspend.attr,
NULL,
};
-ATTRIBUTE_GROUPS(onboard_dev);
+
+static umode_t onboard_dev_attrs_are_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int n)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct onboard_dev *onboard_dev = dev_get_drvdata(dev);
+
+ if (attr == &dev_attr_always_powered_in_suspend.attr &&
+ !onboard_dev->pdata->is_hub)
+ return 0;
+
+ return attr->mode;
+}
+
+static const struct attribute_group onboard_dev_group = {
+ .is_visible = onboard_dev_attrs_are_visible,
+ .attrs = onboard_dev_attrs,
+};
+__ATTRIBUTE_GROUPS(onboard_dev);
+
static void onboard_dev_attach_usb_driver(struct work_struct *work)
{
@@ -286,6 +306,9 @@ static int onboard_dev_probe(struct platform_device *pdev)
if (!onboard_dev->pdata)
return -EINVAL;
+ if (!onboard_dev->pdata->is_hub)
+ onboard_dev->always_powered_in_suspend = true;
+
onboard_dev->dev = dev;
err = onboard_dev_get_regulators(onboard_dev);
diff --git a/drivers/usb/misc/onboard_usb_dev.h
b/drivers/usb/misc/onboard_usb_dev.h
index 4da9f3b7f9e9..ecdce06ea0f9 100644
--- a/drivers/usb/misc/onboard_usb_dev.h
+++ b/drivers/usb/misc/onboard_usb_dev.h
@@ -12,60 +12,70 @@ struct onboard_dev_pdata {
unsigned long reset_us; /* reset pulse width in us */
unsigned int num_supplies; /* number of supplies */
const char * const supply_names[MAX_SUPPLIES];
+ bool is_hub;
};
static const struct onboard_dev_pdata microchip_usb424_data = {
.reset_us = 1,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata microchip_usb5744_data = {
.reset_us = 0,
.num_supplies = 2,
.supply_names = { "vdd", "vdd2" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata realtek_rts5411_data = {
.reset_us = 0,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata ti_tusb8041_data = {
.reset_us = 3000,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata cypress_hx3_data = {
.reset_us = 10000,
.num_supplies = 2,
.supply_names = { "vdd", "vdd2" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata cypress_hx2vl_data = {
.reset_us = 1,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata genesys_gl850g_data = {
.reset_us = 3,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata genesys_gl852g_data = {
.reset_us = 50,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct onboard_dev_pdata vialab_vl817_data = {
.reset_us = 10,
.num_supplies = 1,
.supply_names = { "vdd" },
+ .is_hub = true,
};
static const struct of_device_id onboard_dev_match[] = {
--
2.40.1
