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authorBard Liao <[email protected]>2020-01-13 17:11:29 -0600
committerVinod Koul <[email protected]>2020-01-14 12:05:52 +0530
commita19efb5265c3043f5598192a3493bc3c47a393c6 (patch)
treeeaa2ba82e9bca5724068dab421d5b6b42c77604f
parentfd6a3ac8e87cedd83d6aad4bbc2682a903fb5d01 (diff)
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 <[email protected]> Signed-off-by: Pierre-Louis Bossart <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Vinod Koul <[email protected]>
-rw-r--r--drivers/soundwire/intel.c3
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);