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| author | Bard Liao <yung-chuan.liao@linux.intel.com> | 2020-01-13 17:11:29 -0600 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-01-14 12:05:52 +0530 |
| commit | a19efb5265c3043f5598192a3493bc3c47a393c6 (patch) | |
| tree | eaa2ba82e9bca5724068dab421d5b6b42c77604f /drivers/soundwire | |
| parent | fd6a3ac8e87cedd83d6aad4bbc2682a903fb5d01 (diff) | |
| download | lwn-a19efb5265c3043f5598192a3493bc3c47a393c6.tar.gz lwn-a19efb5265c3043f5598192a3493bc3c47a393c6.zip | |
soundwire: intel: fix factor of two in MCLK handling
Somehow Intel folks were confused, the property is 2x what the mclk
frequency actually is (checked the actual bus frequency with a scope)
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200113231129.19049-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/intel.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 0371d3d5501a..06ef3a3ac080 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -880,6 +880,9 @@ static int sdw_master_read_intel_prop(struct sdw_bus *bus) "intel-sdw-ip-clock", &prop->mclk_freq); + /* the values reported by BIOS are the 2x clock, not the bus clock */ + prop->mclk_freq /= 2; + fwnode_property_read_u32(link, "intel-quirk-mask", &quirk_mask); |