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soundwire: Provide build stubs for common functions

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Provide stub functions when CONFIG_SOUNDWIRE is not set for functions
that are quite likely to be used from common code on devices supporting
multiple control buses.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221125142028.1118618-3-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Charles Keepax 2022-11-25 14:20:26 +00:00 committed by Vinod Koul
parent 62dc9f3f2f
commit 6726b47a2a
1 changed files with 95 additions and 10 deletions
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105
include/linux/soundwire/sdw.h
View file

@ -4,6 +4,7 @@
#ifndef __SOUNDWIRE_H
#define __SOUNDWIRE_H
#include <linux/bug.h>
#include <linux/mod_devicetable.h>
#include <linux/bitfield.h>
@ -1023,15 +1024,8 @@ int sdw_stream_add_master(struct sdw_bus *bus,
struct sdw_port_config *port_config,
unsigned int num_ports,
struct sdw_stream_runtime *stream);
int sdw_stream_add_slave(struct sdw_slave *slave,
struct sdw_stream_config *stream_config,
struct sdw_port_config *port_config,
unsigned int num_ports,
struct sdw_stream_runtime *stream);
int sdw_stream_remove_master(struct sdw_bus *bus,
struct sdw_stream_runtime *stream);
int sdw_stream_remove_slave(struct sdw_slave *slave,
struct sdw_stream_runtime *stream);
int sdw_startup_stream(void *sdw_substream);
int sdw_prepare_stream(struct sdw_stream_runtime *stream);
int sdw_enable_stream(struct sdw_stream_runtime *stream);
@ -1042,8 +1036,20 @@ int sdw_bus_prep_clk_stop(struct sdw_bus *bus);
int sdw_bus_clk_stop(struct sdw_bus *bus);
int sdw_bus_exit_clk_stop(struct sdw_bus *bus);
/* messaging and data APIs */
int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id);
void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id);
#if IS_ENABLED(CONFIG_SOUNDWIRE)
int sdw_stream_add_slave(struct sdw_slave *slave,
struct sdw_stream_config *stream_config,
struct sdw_port_config *port_config,
unsigned int num_ports,
struct sdw_stream_runtime *stream);
int sdw_stream_remove_slave(struct sdw_slave *slave,
struct sdw_stream_runtime *stream);
/* messaging and data APIs */
int sdw_read(struct sdw_slave *slave, u32 addr);
int sdw_write(struct sdw_slave *slave, u32 addr, u8 value);
int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value);
@ -1055,7 +1061,86 @@ int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *
int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val);
int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val);
int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id);
void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id);
#else
static inline int sdw_stream_add_slave(struct sdw_slave *slave,
struct sdw_stream_config *stream_config,
struct sdw_port_config *port_config,
unsigned int num_ports,
struct sdw_stream_runtime *stream)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_stream_remove_slave(struct sdw_slave *slave,
struct sdw_stream_runtime *stream)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
/* messaging and data APIs */
static inline int sdw_read(struct sdw_slave *slave, u32 addr)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_write(struct sdw_slave *slave, u32 addr, u8 value)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_read_no_pm(struct sdw_slave *slave, u32 addr)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
static inline int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val)
{
WARN_ONCE(1, "SoundWire API is disabled");
return -EINVAL;
}
#endif /* CONFIG_SOUNDWIRE */
#endif /* __SOUNDWIRE_H */