[PATCH 09/11] soundwire: generic_bandwidth_allocation: export bandwidth helper functions

[Vijendar Mukunda <Vijendar.Mukunda@amd.com>]

Export sdw_compute_dp0_port_params(), sdw_compute_port_params(),
sdw_select_row_col(), is_clock_scaling_supported() and
get_manager_lane() so that out-of-tree or modular SoundWire manager
drivers can call them directly. Remove the static qualifier from each
function and add the corresponding EXPORT_SYMBOL() and prototype in
bus.h.

Signed-off-by: Poojitha N <Poojitha.N@amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 drivers/soundwire/bus.h                         |  6 ++++++
 .../soundwire/generic_bandwidth_allocation.c    | 17 +++++++++++------
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h
index 44e4f5193917..0c5c343b2c1c 100644
--- a/drivers/soundwire/bus.h
+++ b/drivers/soundwire/bus.h
@@ -241,5 +241,11 @@ void sdw_clear_slave_status(struct sdw_bus *bus, u32 request);
 int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size);
 void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt,
 			     struct sdw_transport_data *t_data);
+void sdw_compute_dp0_port_params(struct sdw_bus *bus);
+int sdw_compute_port_params(struct sdw_bus *bus, struct sdw_stream_runtime *stream);
+int sdw_select_row_col(struct sdw_bus *bus, int clk_freq);
+bool is_clock_scaling_supported(struct sdw_bus *bus);
+int get_manager_lane(struct sdw_bus *bus, struct sdw_master_runtime *m_rt,
+		     struct sdw_slave_runtime *s_rt, unsigned int curr_dr_freq);
 
 #endif /* __SDW_BUS_H */
diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c
index 1dd3b2e5420c..cf2d2275b6aa 100644
--- a/drivers/soundwire/generic_bandwidth_allocation.c
+++ b/drivers/soundwire/generic_bandwidth_allocation.c
@@ -124,7 +124,7 @@ static void sdw_compute_dp0_master_ports(struct sdw_master_runtime *m_rt)
 	}
 }
 
-static void sdw_compute_dp0_port_params(struct sdw_bus *bus)
+void sdw_compute_dp0_port_params(struct sdw_bus *bus)
 {
 	struct sdw_master_runtime *m_rt;
 
@@ -136,6 +136,7 @@ static void sdw_compute_dp0_port_params(struct sdw_bus *bus)
 		sdw_compute_dp0_slave_ports(m_rt);
 	}
 }
+EXPORT_SYMBOL(sdw_compute_dp0_port_params);
 
 static void sdw_compute_master_ports(struct sdw_master_runtime *m_rt,
 				     struct sdw_group_params *params,
@@ -397,7 +398,7 @@ static int sdw_get_group_count(struct sdw_bus *bus,
  * @bus: SDW Bus instance
  * @stream: Soundwire stream
  */
-static int sdw_compute_port_params(struct sdw_bus *bus, struct sdw_stream_runtime *stream)
+int sdw_compute_port_params(struct sdw_bus *bus, struct sdw_stream_runtime *stream)
 {
 	struct sdw_group_params *params = NULL;
 	struct sdw_group group;
@@ -431,8 +432,9 @@ static int sdw_compute_port_params(struct sdw_bus *bus, struct sdw_stream_runtim
 
 	return ret;
 }
+EXPORT_SYMBOL(sdw_compute_port_params);
 
-static int sdw_select_row_col(struct sdw_bus *bus, int clk_freq)
+int sdw_select_row_col(struct sdw_bus *bus, int clk_freq)
 {
 	struct sdw_master_prop *prop = &bus->prop;
 	int r, c;
@@ -455,8 +457,9 @@ static int sdw_select_row_col(struct sdw_bus *bus, int clk_freq)
 
 	return -EINVAL;
 }
+EXPORT_SYMBOL(sdw_select_row_col);
 
-static bool is_clock_scaling_supported(struct sdw_bus *bus)
+bool is_clock_scaling_supported(struct sdw_bus *bus)
 {
 	struct sdw_master_runtime *m_rt;
 	struct sdw_slave_runtime *s_rt;
@@ -468,6 +471,7 @@ static bool is_clock_scaling_supported(struct sdw_bus *bus)
 
 	return true;
 }
+EXPORT_SYMBOL(is_clock_scaling_supported);
 
 /**
  * is_lane_connected_to_all_peripherals: Check if the given manager lane connects to all peripherals
@@ -500,8 +504,8 @@ static bool is_lane_connected_to_all_peripherals(struct sdw_master_runtime *m_rt
 	return true;
 }
 
-static int get_manager_lane(struct sdw_bus *bus, struct sdw_master_runtime *m_rt,
-			    struct sdw_slave_runtime *s_rt, unsigned int curr_dr_freq)
+int get_manager_lane(struct sdw_bus *bus, struct sdw_master_runtime *m_rt,
+		     struct sdw_slave_runtime *s_rt, unsigned int curr_dr_freq)
 {
 	struct sdw_slave_prop *slave_prop = &s_rt->slave->prop;
 	struct sdw_port_runtime *m_p_rt;
@@ -544,6 +548,7 @@ static int get_manager_lane(struct sdw_bus *bus, struct sdw_master_runtime *m_rt
 	/* No available multi lane found, only lane 0 can be used */
 	return 0;
 }
+EXPORT_SYMBOL(get_manager_lane);
 
 /**
  * sdw_compute_bus_params: Compute bus parameters
-- 
2.53.0