diff options
| author | Vinod Koul <vkoul@kernel.org> | 2021-03-02 15:51:03 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-03-22 17:33:10 +0530 |
| commit | 6558b667a7297418b8951ba54da68d551035ecc5 (patch) | |
| tree | 0f581357f60c1294ff7a5f9ea3c2f2c375376918 /drivers/soundwire | |
| parent | a38fd8748464831584a19438cbb3082b5a2dab15 (diff) | |
| download | lwn-6558b667a7297418b8951ba54da68d551035ecc5.tar.gz lwn-6558b667a7297418b8951ba54da68d551035ecc5.zip | |
soundwire: add override addr ops
Platform firmware may have incorrect _ADR values causing the driver
probes to fail. Add the override_ops, which when configured will allow
for quirks based on DMI etc to override the addr values.
Co-developed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20210302075105.11515-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/slave.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c index 180f38bd003b..112b21967c7a 100644 --- a/drivers/soundwire/slave.c +++ b/drivers/soundwire/slave.c @@ -95,7 +95,7 @@ static bool find_slave(struct sdw_bus *bus, struct acpi_device *adev, struct sdw_slave_id *id) { - unsigned long long addr; + u64 addr; unsigned int link_id; acpi_status status; @@ -108,6 +108,12 @@ static bool find_slave(struct sdw_bus *bus, return false; } + if (bus->ops->override_adr) + addr = bus->ops->override_adr(bus, addr); + + if (!addr) + return false; + /* Extract link id from ADR, Bit 51 to 48 (included) */ link_id = SDW_DISCO_LINK_ID(addr); |