linux-kernel - [PATCH v1] ALSA: hda: cs35l41: Override the _DSD for HP Zbook Fury 17 G9 to correct boost type

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Date:   Wed, 23 Aug 2023 15:39:56 +0100
From:   Stefan Binding <sbinding@...nsource.cirrus.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC:     <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: [PATCH v1] ALSA: hda: cs35l41: Override the _DSD for HP Zbook Fury 17 G9 to correct boost type

CS35L41 HDA driver requires ACPI to contain correct _DSD properties to
correctly configure the device. Whilst the HP Zbook Fury 17 G9 contains
valid _DSD properties, the boost type has been configured incorrectly
in the _DSD for this laptop. We can override these properties to fix
the boost type.

Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
---
 sound/pci/hda/cs35l41_hda_property.c | 32 ++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c
index 9b5a1d61575e..b62a4e6968e2 100644
--- a/sound/pci/hda/cs35l41_hda_property.c
+++ b/sound/pci/hda/cs35l41_hda_property.c
@@ -43,6 +43,37 @@ static int lenovo_legion_no_acpi(struct cs35l41_hda *cs35l41, struct device *phy
 	return 0;
 }
 
+/*
+ * Device 103C89C6 does have _DSD, however it is setup to use the wrong boost type.
+ * We can override the _DSD to correct the boost type here.
+ * Since this laptop has valid ACPI, we do not need to handle cs-gpios, since that already exists
+ * in the ACPI.
+ */
+static int hp_vision_acpi_fix(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
+			      const char *hid)
+{
+	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
+
+	dev_info(cs35l41->dev, "Adding DSD properties for %s\n", cs35l41->acpi_subsystem_id);
+
+	cs35l41->index = id;
+	cs35l41->channel_index = 0;
+	cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 1, GPIOD_OUT_HIGH);
+	cs35l41->speaker_id = -ENOENT;
+	hw_cfg->spk_pos = cs35l41->index ? 1 : 0; // right:left
+	hw_cfg->gpio1.func = CS35L41_NOT_USED;
+	hw_cfg->gpio1.valid = true;
+	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
+	hw_cfg->gpio2.valid = true;
+	hw_cfg->bst_type = CS35L41_INT_BOOST;
+	hw_cfg->bst_ind = 1000;
+	hw_cfg->bst_ipk = 4500;
+	hw_cfg->bst_cap = 24;
+	hw_cfg->valid = true;
+
+	return 0;
+}
+
 struct cs35l41_prop_model {
 	const char *hid;
 	const char *ssid;
@@ -53,6 +84,7 @@ struct cs35l41_prop_model {
 static const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
 	{ "CLSA0100", NULL, lenovo_legion_no_acpi },
 	{ "CLSA0101", NULL, lenovo_legion_no_acpi },
+	{ "CSC3551", "103C89C6", hp_vision_acpi_fix },
 	{}
 };
 
-- 
2.34.1