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Subject[PATCH] soundwire: intel: fix factor of two in MCLK handling
Date
From: Bard Liao <yung-chuan.liao@linux.intel.com>

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>
---
drivers/soundwire/intel.c | 3 +++
1 file changed, 3 insertions(+)

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);
--
2.20.1
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