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| author |   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2020-09-08 21:45:20 +0800 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2020-09-10 11:21:05 +0530 |
| commit | a350aff45b4d33355cdc59b7b76950e39639e32f (patch) | |
| tree | 0a3f74f5f8c713fbdf2265d079092219c105fd80 /drivers/soundwire/bus.h | |
| parent | ASoC: codecs: realtek-soundwire: ignore initial PARITY errors (diff) | |
| download | linux-dev-a350aff45b4d33355cdc59b7b76950e39639e32f.tar.xz linux-dev-a350aff45b4d33355cdc59b7b76950e39639e32f.zip | |
soundwire: bus: export broadcast read/write capability for tests
Provide prototype and export symbol to enable tests. The bus lock is
handled externally to avoid conflicts e.g. between kernel-generated
traffic and test traffic.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200908134521.6781-7-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/bus.h')
| -rw-r--r-- | drivers/soundwire/bus.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h index 82484f741168..c53345fbc4c7 100644 --- a/drivers/soundwire/bus.h +++ b/drivers/soundwire/bus.h @@ -168,6 +168,10 @@ sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) return sdw_write(slave, addr, tmp); } +/* broadcast read/write for tests */ +int sdw_bread_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr); +int sdw_bwrite_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr, u8 value); + /* * At the moment we only track Master-initiated hw_reset. * Additional fields can be added as needed |