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[3/6] ASoC: SOF: Intel: hda-mlink: fix base_ptr computation

Message ID 20230512174611.84372-4-pierre-louis.bossart@linux.intel.com
State Accepted
Commit af8c32b1a3d55f9b42294aee7e7c7eca85ee3bd2
Headers show
Series ASoC: SOF: Intel: hda-mlink: fixes and extensions | expand

Commit Message

Pierre-Louis Bossart May 12, 2023, 5:46 p.m. UTC 
The base_ptr value needs to be derived from the remap_addr pointer,
not the ml_addr. This base_ptr was used only in debug logs that were
so far not contributed upstream so the issue was not detected. It
needs to be fixed for SoundWire support on LunarLake.

Fixes: 17c9b6ec35c0 ("ASoC: SOF: Intel: hda-mlink: add structures to parse ALT links")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/sof/intel/hda-mlink.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/sound/soc/sof/intel/hda-mlink.c b/sound/soc/sof/intel/hda-mlink.c
index cfa43d93cbd0..7f5d0ea4abeb 100644
--- a/sound/soc/sof/intel/hda-mlink.c
+++ b/sound/soc/sof/intel/hda-mlink.c
@@ -96,7 +96,7 @@  struct hdac_ext2_link {
  */
 
 static int hdaml_lnk_enum(struct device *dev, struct hdac_ext2_link *h2link,
-			  void __iomem *ml_addr, int link_idx)
+			  void __iomem *remap_addr, void __iomem *ml_addr, int link_idx)
 {
 	struct hdac_ext_link *hlink = &h2link->hext_link;
 	u32 base_offset;
@@ -136,7 +136,7 @@  static int hdaml_lnk_enum(struct device *dev, struct hdac_ext2_link *h2link,
 	h2link->elid = FIELD_GET(AZX_REG_ML_LEPTR_ID, h2link->leptr);
 
 	base_offset = FIELD_GET(AZX_REG_ML_LEPTR_PTR, h2link->leptr);
-	h2link->base_ptr = hlink->ml_addr + base_offset;
+	h2link->base_ptr = remap_addr + base_offset;
 
 	switch (h2link->elid) {
 	case AZX_REG_ML_LEPTR_ID_SDW:
@@ -369,7 +369,7 @@  static int hda_ml_alloc_h2link(struct hdac_bus *bus, int index)
 	hlink->bus = bus;
 	hlink->ml_addr = bus->mlcap + AZX_ML_BASE + (AZX_ML_INTERVAL * index);
 
-	ret = hdaml_lnk_enum(bus->dev, h2link, hlink->ml_addr, index);
+	ret = hdaml_lnk_enum(bus->dev, h2link, bus->remap_addr, hlink->ml_addr, index);
 	if (ret < 0) {
 		kfree(h2link);
 		return ret;