[PATCH v2] ALSA: hda: cs35l41: Clarify support for CSC3551 without _DSD Properties

[Stefan Binding]

For devices which use HID CSC3551, correct ACPI _DSD properties are
required to be able support those systems.
Add error message to clarify this.

Signed-off-by: Stefan Binding <sbinding at opensource.cirrus.com>
---
 sound/pci/hda/cs35l41_hda.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index 129bffb431c2..15e2a0009080 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -1163,6 +1163,11 @@ static int cs35l41_no_acpi_dsd(struct cs35l41_hda *cs35l41, struct device *physd
 		hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
 		hw_cfg->gpio1.valid = true;
 	} else {
+		/*
+		 * Note: CLSA010(0/1) are special cases which use a slightly different design.
+		 * All other HIDs e.g. CSC3551 require valid ACPI _DSD properties to be supported.
+		 */
+		dev_err(cs35l41->dev, "Error: ACPI _DSD Properties are missing for HID %s.\n", hid);
 		hw_cfg->valid = false;
 		hw_cfg->gpio1.valid = false;
 		hw_cfg->gpio2.valid = false;
-- 
2.34.1