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| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2023-05-15 15:10:21 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-05-27 16:06:45 +0530 |
| commit | e40e0e11fe64a0ac93fb11c3c448b844516bc6ee (patch) | |
| tree | 755250281cb981da4cba8eb0de403377978fac55 /drivers/soundwire/intel.h | |
| parent | 6ab915b9c355caa1f80e9e383892052523f49d1f (diff) | |
| download | linux-e40e0e11fe64a0ac93fb11c3c448b844516bc6ee.tar.gz linux-e40e0e11fe64a0ac93fb11c3c448b844516bc6ee.tar.bz2 linux-e40e0e11fe64a0ac93fb11c3c448b844516bc6ee.zip | |
soundwire: intel/cadence: set ip_offset at run-time
Select relevant ip-offset depending on hardware version. This offset
is used to access MCP_ or IP_MCP_ registers with a fixed offset.
For existing platforms, the offset is exactly zero. Starting with
LunarLake, the offset is 0x4000.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230515071042.2038-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/intel.h')
| -rw-r--r-- | drivers/soundwire/intel.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/soundwire/intel.h b/drivers/soundwire/intel.h index 51aa42a5a824..1b23292bb8be 100644 --- a/drivers/soundwire/intel.h +++ b/drivers/soundwire/intel.h @@ -10,6 +10,7 @@ * @hw_ops: platform-specific ops * @mmio_base: mmio base of SoundWire registers * @registers: Link IO registers base + * @ip_offset: offset for MCP_IP registers * @shim: Audio shim pointer * @shim_vs: Audio vendor-specific shim pointer * @alh: ALH (Audio Link Hub) pointer @@ -28,6 +29,7 @@ struct sdw_intel_link_res { void __iomem *mmio_base; /* not strictly needed, useful for debug */ void __iomem *registers; + u32 ip_offset; void __iomem *shim; void __iomem *shim_vs; void __iomem *alh; |