Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 6ca9111..29fe577 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/nls.h>
#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/slab.h>
/* Internal Register Set Addresses & Default Values acc. to DS00001692C */
@@ -26,10 +27,6 @@
#define USB251XB_ADDR_PRODUCT_ID_LSB 0x02
#define USB251XB_ADDR_PRODUCT_ID_MSB 0x03
-#define USB251XB_DEF_PRODUCT_ID_12 0x2512 /* USB2512B/12Bi */
-#define USB251XB_DEF_PRODUCT_ID_13 0x2513 /* USB2513B/13Bi */
-#define USB251XB_DEF_PRODUCT_ID_14 0x2514 /* USB2514B/14Bi */
-#define USB251XB_DEF_PRODUCT_ID_17 0x2517 /* USB2517/17i */
#define USB251XB_ADDR_DEVICE_ID_LSB 0x04
#define USB251XB_ADDR_DEVICE_ID_MSB 0x05
@@ -74,7 +71,6 @@
#define USB251XB_ADDR_PRODUCT_STRING_LEN 0x14
#define USB251XB_ADDR_PRODUCT_STRING 0x54
-#define USB251XB_DEF_PRODUCT_STRING "USB251xB/xBi/7i"
#define USB251XB_ADDR_SERIAL_STRING_LEN 0x15
#define USB251XB_ADDR_SERIAL_STRING 0x92
@@ -116,6 +112,7 @@
struct usb251xb {
struct device *dev;
struct i2c_client *i2c;
+ struct regulator *vdd;
u8 skip_config;
struct gpio_desc *gpio_reset;
u16 vendor_id;
@@ -159,6 +156,14 @@
char product_str[USB251XB_STRING_BUFSIZE / 2]; /* ASCII string */
};
+static const struct usb251xb_data usb2422_data = {
+ .product_id = 0x2422,
+ .port_cnt = 2,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2422",
+};
+
static const struct usb251xb_data usb2512b_data = {
.product_id = 0x2512,
.port_cnt = 2,
@@ -261,20 +266,19 @@
}
#endif
-static void usb251xb_reset(struct usb251xb *hub, int state)
+static void usb251xb_reset(struct usb251xb *hub)
{
if (!hub->gpio_reset)
return;
i2c_lock_bus(hub->i2c->adapter, I2C_LOCK_SEGMENT);
- gpiod_set_value_cansleep(hub->gpio_reset, state);
+ gpiod_set_value_cansleep(hub->gpio_reset, 1);
+ usleep_range(1, 10); /* >=1us RESET_N asserted */
+ gpiod_set_value_cansleep(hub->gpio_reset, 0);
/* wait for hub recovery/stabilization */
- if (!state)
- usleep_range(500, 750); /* >=500us at power on */
- else
- usleep_range(1, 10); /* >=1us at power down */
+ usleep_range(500, 750); /* >=500us after RESET_N deasserted */
i2c_unlock_bus(hub->i2c->adapter, I2C_LOCK_SEGMENT);
}
@@ -292,7 +296,7 @@
i2c_wb[0] = 0x01;
i2c_wb[1] = USB251XB_STATUS_COMMAND_ATTACH;
- usb251xb_reset(hub, 0);
+ usb251xb_reset(hub);
err = i2c_smbus_write_i2c_block_data(hub->i2c,
USB251XB_ADDR_STATUS_COMMAND, 2, i2c_wb);
@@ -342,7 +346,7 @@
i2c_wb[USB251XB_ADDR_PORT_MAP_7] = hub->port_map7;
i2c_wb[USB251XB_ADDR_STATUS_COMMAND] = USB251XB_STATUS_COMMAND_ATTACH;
- usb251xb_reset(hub, 0);
+ usb251xb_reset(hub);
/* write registers */
for (i = 0; i < (USB251XB_I2C_REG_SZ / USB251XB_I2C_WRITE_SZ); i++) {
@@ -593,6 +597,9 @@
static const struct of_device_id usb251xb_of_match[] = {
{
+ .compatible = "microchip,usb2422",
+ .data = &usb2422_data,
+ }, {
.compatible = "microchip,usb2512b",
.data = &usb2512b_data,
}, {
@@ -629,6 +636,13 @@
}
#endif /* CONFIG_OF */
+static void usb251xb_regulator_disable_action(void *data)
+{
+ struct usb251xb *hub = data;
+
+ regulator_disable(hub->vdd);
+}
+
static int usb251xb_probe(struct usb251xb *hub)
{
struct device *dev = hub->dev;
@@ -665,6 +679,19 @@
if (err)
return err;
+ hub->vdd = devm_regulator_get(dev, "vdd");
+ if (IS_ERR(hub->vdd))
+ return PTR_ERR(hub->vdd);
+
+ err = regulator_enable(hub->vdd);
+ if (err)
+ return err;
+
+ err = devm_add_action_or_reset(dev,
+ usb251xb_regulator_disable_action, hub);
+ if (err)
+ return err;
+
err = usb251xb_connect(hub);
if (err) {
dev_err(dev, "Failed to connect hub (%d)\n", err);
@@ -692,7 +719,31 @@
return usb251xb_probe(hub);
}
+static int __maybe_unused usb251xb_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct usb251xb *hub = i2c_get_clientdata(client);
+
+ return regulator_disable(hub->vdd);
+}
+
+static int __maybe_unused usb251xb_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct usb251xb *hub = i2c_get_clientdata(client);
+ int err;
+
+ err = regulator_enable(hub->vdd);
+ if (err)
+ return err;
+
+ return usb251xb_connect(hub);
+}
+
+static SIMPLE_DEV_PM_OPS(usb251xb_pm_ops, usb251xb_suspend, usb251xb_resume);
+
static const struct i2c_device_id usb251xb_id[] = {
+ { "usb2422", 0 },
{ "usb2512b", 0 },
{ "usb2512bi", 0 },
{ "usb2513b", 0 },
@@ -709,6 +760,7 @@
.driver = {
.name = DRIVER_NAME,
.of_match_table = of_match_ptr(usb251xb_of_match),
+ .pm = &usb251xb_pm_ops,
},
.probe = usb251xb_i2c_probe,
.id_table = usb251xb_id,