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authorSebastian Reichel <sre@kernel.org>2014-03-28 22:54:25 +0100
committerSebastian Reichel <sre@kernel.org>2014-05-16 00:54:41 +0200
commit8491451024bcfabdcebd772ce9ec2fc5757acd42 (patch)
treeb8e73b934b21f47abacfd17fecc608dd2b140084 /drivers/hsi
parenta088cf161cc87b39e83c7c53b9f239773422d212 (diff)
downloadop-kernel-dev-8491451024bcfabdcebd772ce9ec2fc5757acd42.zip
op-kernel-dev-8491451024bcfabdcebd772ce9ec2fc5757acd42.tar.gz
HSI: export method to (un)register clients
Expose method for registering and unregistering HSI clients, so that client drivers can register other client drivers. This is useful for HSI drivers, which want to use the functionality of other HSI drivers. For example the N900 modem driver can load HSI drivers for mcsaab protocol and speech protocol. Signed-off-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Pavel Machek <pavel@ucw.cz> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Diffstat (limited to 'drivers/hsi')
-rw-r--r--drivers/hsi/hsi.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c
index de2ad8f..834a2d6 100644
--- a/drivers/hsi/hsi.c
+++ b/drivers/hsi/hsi.c
@@ -69,14 +69,15 @@ static void hsi_client_release(struct device *dev)
kfree(cl);
}
-static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info)
+struct hsi_client *hsi_new_client(struct hsi_port *port,
+ struct hsi_board_info *info)
{
struct hsi_client *cl;
size_t size;
cl = kzalloc(sizeof(*cl), GFP_KERNEL);
if (!cl)
- return;
+ return NULL;
cl->tx_cfg = info->tx_cfg;
if (cl->tx_cfg.channels) {
@@ -103,7 +104,10 @@ static void hsi_new_client(struct hsi_port *port, struct hsi_board_info *info)
pr_err("hsi: failed to register client: %s\n", info->name);
put_device(&cl->device);
}
+
+ return cl;
}
+EXPORT_SYMBOL_GPL(hsi_new_client);
static void hsi_scan_board_info(struct hsi_controller *hsi)
{
@@ -119,12 +123,13 @@ static void hsi_scan_board_info(struct hsi_controller *hsi)
}
}
-static int hsi_remove_client(struct device *dev, void *data __maybe_unused)
+int hsi_remove_client(struct device *dev, void *data __maybe_unused)
{
device_unregister(dev);
return 0;
}
+EXPORT_SYMBOL_GPL(hsi_remove_client);
static int hsi_remove_port(struct device *dev, void *data __maybe_unused)
{
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