HSI: Add channel resource support to HSI clients
Make HSI channel ids platform data, which can be provided
by platform data.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h
index 5a9f121..e3cff94 100644
--- a/include/linux/hsi/hsi.h
+++ b/include/linux/hsi/hsi.h
@@ -68,17 +68,31 @@
};
/**
+ * struct hsi_channel - channel resource used by the hsi clients
+ * @id: Channel number
+ * @name: Channel name
+ */
+struct hsi_channel {
+ unsigned int id;
+ const char *name;
+};
+
+/**
* struct hsi_config - Configuration for RX/TX HSI modules
* @mode: Bit transmission mode (STREAM or FRAME)
- * @channels: Number of channels to use [1..16]
+ * @channels: Channel resources used by the client
+ * @num_channels: Number of channel resources
+ * @num_hw_channels: Number of channels the transceiver is configured for [1..16]
* @speed: Max bit transmission speed (Kbit/s)
* @flow: RX flow type (SYNCHRONIZED or PIPELINE)
* @arb_mode: Arbitration mode for TX frame (Round robin, priority)
*/
struct hsi_config {
- unsigned int mode;
- unsigned int channels;
- unsigned int speed;
+ unsigned int mode;
+ struct hsi_channel *channels;
+ unsigned int num_channels;
+ unsigned int num_hw_channels;
+ unsigned int speed;
union {
unsigned int flow; /* RX only */
unsigned int arb_mode; /* TX only */
@@ -306,6 +320,8 @@
*/
int hsi_async(struct hsi_client *cl, struct hsi_msg *msg);
+int hsi_get_channel_id_by_name(struct hsi_client *cl, char *name);
+
/**
* hsi_id - Get HSI controller ID associated to a client
* @cl: Pointer to a HSI client