summaryrefslogtreecommitdiff
path: root/drivers/soundwire
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/soundwire')
-rw-r--r--drivers/soundwire/intel.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 85014181a40d..f1e38a293967 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -91,6 +91,8 @@
#define SDW_ALH_STRMZCFG_DMAT GENMASK(7, 0)
#define SDW_ALH_STRMZCFG_CHN GENMASK(19, 16)
+#define SDW_INTEL_QUIRK_MASK_BUS_DISABLE BIT(1)
+
enum intel_pdi_type {
INTEL_PDI_IN = 0,
INTEL_PDI_OUT = 1,
@@ -944,6 +946,7 @@ static int sdw_master_read_intel_prop(struct sdw_bus *bus)
struct sdw_master_prop *prop = &bus->prop;
struct fwnode_handle *link;
char name[32];
+ u32 quirk_mask;
/* Find master handle */
snprintf(name, sizeof(name),
@@ -958,6 +961,14 @@ static int sdw_master_read_intel_prop(struct sdw_bus *bus)
fwnode_property_read_u32(link,
"intel-sdw-ip-clock",
&prop->mclk_freq);
+
+ fwnode_property_read_u32(link,
+ "intel-quirk-mask",
+ &quirk_mask);
+
+ if (quirk_mask & SDW_INTEL_QUIRK_MASK_BUS_DISABLE)
+ prop->hw_disabled = true;
+
return 0;
}
@@ -1018,6 +1029,12 @@ static int intel_probe(struct platform_device *pdev)
goto err_master_reg;
}
+ if (sdw->cdns.bus.prop.hw_disabled) {
+ dev_info(&pdev->dev, "SoundWire master %d is disabled, ignoring\n",
+ sdw->cdns.bus.link_id);
+ return 0;
+ }
+
/* Initialize shim and controller */
intel_link_power_up(sdw);
intel_shim_init(sdw);
@@ -1071,9 +1088,11 @@ static int intel_remove(struct platform_device *pdev)
sdw = platform_get_drvdata(pdev);
- intel_debugfs_exit(sdw);
- free_irq(sdw->res->irq, sdw);
- snd_soc_unregister_component(sdw->cdns.dev);
+ if (!sdw->cdns.bus.prop.hw_disabled) {
+ intel_debugfs_exit(sdw);
+ free_irq(sdw->res->irq, sdw);
+ snd_soc_unregister_component(sdw->cdns.dev);
+ }
sdw_delete_bus_master(&sdw->cdns.bus);
return 0;