From: Charles Keepax <ckeepax@opensource.cirrus.com>
To: vkoul@kernel.org
Cc: yung-chuan.liao@linux.intel.com, pierre-louis.bossart@linux.dev,
linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org,
patches@opensource.cirrus.com
Subject: [PATCH] soundwire: slave: Don't register devices that are disabled in ACPI
Date: Mon, 23 Feb 2026 09:20:48 +0000 [thread overview]
Message-ID: <20260223092048.3695135-1-ckeepax@opensource.cirrus.com> (raw)
If a piece of hardware is disabled in ACPI it shouldn't be added to the
bus. Add code to handle this similar to other buses like SPI/I2C.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
drivers/soundwire/slave.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index f5a3ca3b9dda4..ff763b692078d 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -115,6 +115,9 @@ static bool find_slave(struct sdw_bus *bus,
u64 addr;
int ret;
+ if (acpi_bus_get_status(adev) || !acpi_dev_ready_for_enumeration(adev))
+ return false;
+
ret = acpi_get_local_u64_address(adev->handle, &addr);
if (ret < 0)
return false;
--
2.47.3
next reply other threads:[~2026-02-23 9:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-23 9:20 Charles Keepax [this message]
2026-02-24 10:53 ` [PATCH] soundwire: slave: Don't register devices that are disabled in ACPI Pierre-Louis Bossart
2026-02-25 7:58 ` Vinod Koul
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