greybus: svc: drop legacy-protocol dependency

Drop dependency on the legacy protocol abstraction.

Remove the now unused and last legacy-protocol flag
GB_PROTOCOL_SKIP_VERSION along with the protocol-flag feature.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/connection.c b/drivers/staging/greybus/connection.c
index 3f644ca..3339ef9 100644 (file)
--- a/drivers/staging/greybus/connection.c
+++ b/drivers/staging/greybus/connection.c
@@ -341,17 +341,12 @@ gb_connection_control_disconnected(struct gb_connection *connection)
 }
 
 /*
- * Request protocol version supported by the module. We don't need to do
- * this for SVC as that is initiated by the SVC.
+ * Request protocol version supported by the module.
  */
 static int gb_connection_protocol_get_version(struct gb_connection *connection)
 {
-       struct gb_protocol *protocol = connection->protocol;
        int ret;
 
-       if (protocol->flags & GB_PROTOCOL_SKIP_VERSION)
-               return 0;
-
        ret = gb_protocol_get_version(connection);
        if (ret) {
                dev_err(&connection->hd->dev,

diff --git a/drivers/staging/greybus/core.c b/drivers/staging/greybus/core.c
index 6674b27..a72191f 100644 (file)
--- a/drivers/staging/greybus/core.c
+++ b/drivers/staging/greybus/core.c
@@ -234,12 +234,6 @@ static int __init gb_init(void)
                goto error_operation;
        }
 
-       retval = gb_svc_protocol_init();
-       if (retval) {
-               pr_err("gb_svc_protocol_init failed\n");
-               goto error_svc;
-       }
-
        retval = gb_firmware_protocol_init();
        if (retval) {
                pr_err("gb_firmware_protocol_init failed\n");
@@ -257,8 +251,6 @@ static int __init gb_init(void)
 error_legacy:
        gb_firmware_protocol_exit();
 error_firmware:
-       gb_svc_protocol_exit();
-error_svc:
        gb_operation_exit();
 error_operation:
        gb_hd_exit();
@@ -275,7 +267,6 @@ static void __exit gb_exit(void)
 {
        gb_legacy_exit();
        gb_firmware_protocol_exit();
-       gb_svc_protocol_exit();
        gb_operation_exit();
        gb_hd_exit();
        bus_unregister(&greybus_bus_type);

diff --git a/drivers/staging/greybus/protocol.h b/drivers/staging/greybus/protocol.h
index 1f25c13..26c59ef 100644 (file)
--- a/drivers/staging/greybus/protocol.h
+++ b/drivers/staging/greybus/protocol.h
@@ -13,9 +13,6 @@
 struct gb_connection;
 struct gb_operation;
 
-/* Possible flags for protocol drivers */
-#define GB_PROTOCOL_SKIP_VERSION               BIT(3)  /* Don't send get_version() requests */
-
 typedef int (*gb_connection_init_t)(struct gb_connection *);
 typedef void (*gb_connection_exit_t)(struct gb_connection *);
 typedef int (*gb_request_recv_t)(u8, struct gb_operation *);
@@ -30,7 +27,6 @@ struct gb_protocol {
        u8                      major;
        u8                      minor;
        u8                      count;
-       unsigned long           flags;
 
        struct list_head        links;          /* global list */
 

diff --git a/drivers/staging/greybus/svc.c b/drivers/staging/greybus/svc.c
index 245cf4d..fcdee90 100644 (file)
--- a/drivers/staging/greybus/svc.c
+++ b/drivers/staging/greybus/svc.c
@@ -690,10 +690,11 @@ static int gb_svc_intf_reset_recv(struct gb_operation *op)
        return 0;
 }
 
-static int gb_svc_request_recv(u8 type, struct gb_operation *op)
+static int gb_svc_request_handler(struct gb_operation *op)
 {
        struct gb_connection *connection = op->connection;
        struct gb_svc *svc = connection->private;
+       u8 type = op->type;
        int ret = 0;
 
        /*
@@ -815,7 +816,7 @@ int gb_svc_add(struct gb_svc *svc)
         * is added from the connection request handler when enough
         * information has been received.
         */
-       ret = gb_connection_legacy_init(svc->connection);
+       ret = gb_connection_enable(svc->connection, gb_svc_request_handler);
        if (ret)
                return ret;
 
@@ -830,7 +831,7 @@ void gb_svc_del(struct gb_svc *svc)
        if (device_is_registered(&svc->dev))
                device_del(&svc->dev);
 
-       gb_connection_legacy_exit(svc->connection);
+       gb_connection_disable(svc->connection);
 
        flush_workqueue(svc->wq);
 }
@@ -839,31 +840,3 @@ void gb_svc_put(struct gb_svc *svc)
 {
        put_device(&svc->dev);
 }
-
-static int gb_svc_connection_init(struct gb_connection *connection)
-{
-       struct gb_svc *svc = connection->private;
-
-       dev_dbg(&svc->dev, "%s\n", __func__);
-
-       return 0;
-}
-
-static void gb_svc_connection_exit(struct gb_connection *connection)
-{
-       struct gb_svc *svc = connection->private;
-
-       dev_dbg(&svc->dev, "%s\n", __func__);
-}
-
-static struct gb_protocol svc_protocol = {
-       .name                   = "svc",
-       .id                     = GREYBUS_PROTOCOL_SVC,
-       .major                  = GB_SVC_VERSION_MAJOR,
-       .minor                  = GB_SVC_VERSION_MINOR,
-       .connection_init        = gb_svc_connection_init,
-       .connection_exit        = gb_svc_connection_exit,
-       .request_recv           = gb_svc_request_recv,
-       .flags                  = GB_PROTOCOL_SKIP_VERSION,
-};
-gb_builtin_protocol_driver(svc_protocol);