[PATCH v3 11/12] platform/x86: intel_cht_int33fe: Add device connections for the Type-C port

Hans de Goede
2018-02-26T09:09:53Z

We need to add device-connections for the Type-C mux/switch and usb-role
code to be able to find the PI3USB30532 Type-C cross-switch and the
device/host role-switch integrated in the CHT SoC.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
-Add Andy's Acked-by
-Add Heikki's Reviewed-by
---
drivers/platform/x86/intel_cht_int33fe.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/drivers/platform/x86/intel_cht_int33fe.c b/drivers/platform/x86/intel_cht_int33fe.c
index 380ef7ec094f..a3f8674f14da 100644
--- a/drivers/platform/x86/intel_cht_int33fe.c
+++ b/drivers/platform/x86/intel_cht_int33fe.c
@@ -21,6 +21,7 @@
*/

#include <linux/acpi.h>
+#include <linux/connection.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@@ -33,6 +34,8 @@ struct cht_int33fe_data {
struct i2c_client *max17047;
struct i2c_client *fusb302;
struct i2c_client *pi3usb30532;
+ /* Contain a list-head must be per device */
+ struct devcon connections[3];
};

/*
@@ -172,6 +175,20 @@ static int cht_int33fe_probe(struct i2c_client *client)
return -EPROBE_DEFER; /* Wait for i2c-adapter to load */
}

+ data->connections[0].endpoint[0] = "i2c-fusb302";
+ data->connections[0].endpoint[1] = "i2c-pi3usb30532";
+ data->connections[0].id = "typec-switch";
+ data->connections[1].endpoint[0] = "i2c-fusb302";
+ data->connections[1].endpoint[1] = "i2c-pi3usb30532";
+ data->connections[1].id = "typec-mux";
+ data->connections[2].endpoint[0] = "i2c-fusb302";
+ data->connections[2].endpoint[1] = "intel_xhci_usb_sw-role-switch";
+ data->connections[2].id = "usb-role-switch";
+
+ add_device_connection(&data->connections[0]);
+ add_device_connection(&data->connections[1]);
+ add_device_connection(&data->connections[2]);
+
memset(&board_info, 0, sizeof(board_info));
strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
board_info.dev_name = "fusb302";
@@ -201,6 +218,10 @@ static int cht_int33fe_probe(struct i2c_client *client)
if (data->max17047)
i2c_unregister_device(data->max17047);

+ remove_device_connection(&data->connections[2]);
+ remove_device_connection(&data->connections[1]);
+ remove_device_connection(&data->connections[0]);
+
return -EPROBE_DEFER; /* Wait for the i2c-adapter to load */
}

@@ -213,6 +234,10 @@ static int cht_int33fe_remove(struct i2c_client *i2c)
if (data->max17047)
i2c_unregister_device(data->max17047);

+ remove_device_connection(&data->connections[2]);
+ remove_device_connection(&data->connections[1]);
+ remove_device_connection(&data->connections[0]);
+
return 0;
}

--
2.14.3