soundwire: amd: add check for status update registers

Add check to proceed handling SoundWire interrupts when valid
status is reported in any one of the status registers.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20250620102617.73437-2-Vijendar.Mukunda@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index 9a767704b603d1f74a623eabc6d444e8a7379397..d4e62c383b1226ffedb8ab694baa308e63e6024f 100644 (file)
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -931,6 +931,9 @@ static void amd_sdw_irq_thread(struct work_struct *work)
 
        status_change_8to11 = readl(amd_manager->mmio + ACP_SW_STATE_CHANGE_STATUS_8TO11);
        status_change_0to7 = readl(amd_manager->mmio + ACP_SW_STATE_CHANGE_STATUS_0TO7);
+       if (!status_change_0to7 && !status_change_8to11)
+               return;
+
        dev_dbg(amd_manager->dev, "[SDW%d] SDW INT: 0to7=0x%x, 8to11=0x%x\n",
                amd_manager->instance, status_change_0to7, status_change_8to11);
        if (status_change_8to11 & AMD_SDW_WAKE_STAT_MASK)