iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

soundwire: intel: fix PDI/stream mapping for Bulk

Browse Source 
[ Upstream commit c134f914e9f55b7817e2bae625ec0e5f1379f7cd ]

The previous formula is incorrect for PDI0/1, the mapping is not
linear but has a discontinuity between PDI1 and PDI2.

This change has no effect on PCM PDIs (same mapping).

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191022232948.17156-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2019-10-22 18:29:48 -05:00 committed by Greg Kroah-Hartman
parent 3fd36843e8
commit b3fcff6b78
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/soundwire/intel.c
View File

@ -352,7 +352,10 @@ intel_pdi_shim_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
unsigned int link_id = sdw->instance;
int pdi_conf = 0;
pdi->intel_alh_id = (link_id * 16) + pdi->num + 5;
/* the Bulk and PCM streams are not contiguous */
pdi->intel_alh_id = (link_id * 16) + pdi->num + 3;
if (pdi->num >= 2)
pdi->intel_alh_id += 2;
/*
* Program stream parameters to stream SHIM register
@ -381,7 +384,10 @@ intel_pdi_alh_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
unsigned int link_id = sdw->instance;
unsigned int conf;
pdi->intel_alh_id = (link_id * 16) + pdi->num + 5;
/* the Bulk and PCM streams are not contiguous */
pdi->intel_alh_id = (link_id * 16) + pdi->num + 3;
if (pdi->num >= 2)
pdi->intel_alh_id += 2;
/* Program Stream config ALH register */
conf = intel_readl(alh, SDW_ALH_STRMZCFG(pdi->intel_alh_id));