lkml.org 
[lkml]   [2019]   [Oct]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] soundwire: intel: fix PDI/stream mapping for Bulk
Date
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>
---
drivers/soundwire/intel.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index b403ccc832b6..c984261fcc33 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -480,7 +480,10 @@ 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
@@ -509,7 +512,10 @@ 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));
--
2.20.1
\
 
 \ /
  Last update: 2019-10-23 01:30    [W:0.049 / U:0.992 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site