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authorEdson Juliano Drosdeck <edson.drosdeck@gmail.com>2023-07-19 23:02:41 +0300
committerMark Brown <broonie@kernel.org>2023-07-24 01:40:05 +0300
commit1bc40efdaf4a0ccfdb10a1c8e4b458f4764e8e5f (patch)
treee12316154a949686c857159f6c28279a373f6f9d
parent1477c794c771be0a873a41421812e7274717dcd1 (diff)
downloadlinux-1bc40efdaf4a0ccfdb10a1c8e4b458f4764e8e5f.tar.xz
ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect
Add a quirk mechanism to allow specifying that active-high jack-detection should be used on platforms where this info is not available in devicetree. And add an entry for the Positivo CW14Q01P-V2 to the DMI table, so that jack-detection will work properly on this laptop. Signed-off-by: Edson Juliano Drosdeck <edson.drosdeck@gmail.com> Link: https://lore.kernel.org/r/20230719200241.4865-1-edson.drosdeck@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/codecs/nau8821.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c
index 96d75882b33a..ca6beb2d2649 100644
--- a/sound/soc/codecs/nau8821.c
+++ b/sound/soc/codecs/nau8821.c
@@ -10,6 +10,7 @@
#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/delay.h>
+#include <linux/dmi.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/module.h>
@@ -25,6 +26,13 @@
#include <sound/tlv.h>
#include "nau8821.h"
+#define NAU8821_JD_ACTIVE_HIGH BIT(0)
+
+static int nau8821_quirk;
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, uint, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
#define NAU_FREF_MAX 13500000
#define NAU_FVCO_MAX 100000000
#define NAU_FVCO_MIN 90000000
@@ -1792,6 +1800,33 @@ static int nau8821_setup_irq(struct nau8821 *nau8821)
return 0;
}
+/* Please keep this list alphabetically sorted */
+static const struct dmi_system_id nau8821_quirk_table[] = {
+ {
+ /* Positivo CW14Q01P-V2 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Positivo Tecnologia SA"),
+ DMI_MATCH(DMI_BOARD_NAME, "CW14Q01P-V2"),
+ },
+ .driver_data = (void *)(NAU8821_JD_ACTIVE_HIGH),
+ },
+ {}
+};
+
+static void nau8821_check_quirks(void)
+{
+ const struct dmi_system_id *dmi_id;
+
+ if (quirk_override != -1) {
+ nau8821_quirk = quirk_override;
+ return;
+ }
+
+ dmi_id = dmi_first_match(nau8821_quirk_table);
+ if (dmi_id)
+ nau8821_quirk = (unsigned long)dmi_id->driver_data;
+}
+
static int nau8821_i2c_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
@@ -1812,6 +1847,12 @@ static int nau8821_i2c_probe(struct i2c_client *i2c)
nau8821->dev = dev;
nau8821->irq = i2c->irq;
+
+ nau8821_check_quirks();
+
+ if (nau8821_quirk & NAU8821_JD_ACTIVE_HIGH)
+ nau8821->jkdet_polarity = 0;
+
nau8821_print_device_properties(nau8821);
nau8821_reset_chip(nau8821->regmap);