Merge tag 'soundwire-6.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire fixes from Vinod Koul:

 - Null pointer dereference for mult link in core

 - AC timing fix in intel driver

* tag 'soundwire-6.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: intel_ace2x: fix AC timing setting for ACE2.x
  soundwire: stream: fix NULL pointer dereference for multi_link

Author: torvalds

drivers/soundwire/intel_ace2x.c

@@ -23,8 +23,9 @@
 static void intel_shim_vs_init(struct sdw_intel *sdw)
 {
 	void __iomem *shim_vs = sdw->link_res->shim_vs;
-	u16 act = 0;
+	u16 act;
 
+	act = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL);
 	u16p_replace_bits(&act, 0x1, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAIS);
 	act |= SDW_SHIM2_INTEL_VS_ACTMCTL_DACTQE;
 	act |=  SDW_SHIM2_INTEL_VS_ACTMCTL_DODS;

drivers/soundwire/stream.c

@@ -742,14 +742,15 @@ static int sdw_bank_switch(struct sdw_bus *bus, int m_rt_count)
  * sdw_ml_sync_bank_switch: Multilink register bank switch
  *
  * @bus: SDW bus instance
+ * @multi_link: whether this is a multi-link stream with hardware-based sync
  *
  * Caller function should free the buffers on error
  */
-static int sdw_ml_sync_bank_switch(struct sdw_bus *bus)
+static int sdw_ml_sync_bank_switch(struct sdw_bus *bus, bool multi_link)
 {
 	unsigned long time_left;
 
-	if (!bus->multi_link)
+	if (!multi_link)
 		return 0;
 
 	/* Wait for completion of transfer */
@@ -847,7 +848,7 @@ static int do_bank_switch(struct sdw_stream_runtime *stream)
 			bus->bank_switch_timeout = DEFAULT_BANK_SWITCH_TIMEOUT;
 
 		/* Check if bank switch was successful */
-		ret = sdw_ml_sync_bank_switch(bus);
+		ret = sdw_ml_sync_bank_switch(bus, multi_link);
 		if (ret < 0) {
 			dev_err(bus->dev,
 				"multi link bank switch failed: %d\n", ret);