Hi Shenghao Ding,
Thanks for the patch.
Subject: [PATCH v1] ALSA: hda/tas2781: Support ACPI_ID both TXNW2781 and TIAS2781
Support ACPI_ID both TXNW2781 and TIAS2781, TXNW2781 is the only one legal ACPI ID, TIAS2781 is the widely-used ACPI ID named by our customers, so far it is not registered. We have discussed this with them, they requested TIAS2781 must be supported for the laptops already released to market, their new laptops will switch to TXNW2781.
Signed-off-by: Shenghao Ding shenghao-ding@ti.com
Changes in v1:
Add TXNW2781 into tas2781_acpi_hda_match and move it to the top
Redefine tas2781_generic_fixup, remove hid param
TIAS2781 has been used by our customers, see following dstd.dsl. We have discussed this with them, they requested TIAS2781 must be supported for the laptops already released to market, their new laptops will switch to TXNW2781 Name (_HID, "TIAS2781") // _HID: Hardware ID Name (_UID, Zero) // _UID: Unique ID Method (_SUB, 0, NotSerialized) // _SUB: Subsystem ID { If ((SPID == Zero)) { Return ("17AA3886") }
If ((SPID == One)) { Return ("17AA3884") }}
Add TXNW2781 support in comp_match_tas2781_dev_name
sound/pci/hda/patch_realtek.c | 36 ++++++++++++++++++--------------- sound/pci/hda/tas2781_hda_i2c.c | 33 ++++++++++++++++++------------ 2 files changed, 40 insertions(+), 29 deletions(-)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index b7e78bfcff..6dae58a8ef 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6770,24 +6770,35 @@ static int comp_match_cs35l41_dev_name(struct device *dev, void *data) return !strcmp(d + n, tmp); }
+/* TIAS2781 is the unofficial ACPI id, but widely used in current devices.
- TXNW2781 is the official ACPI id, and will be used in the new devices.
- Check TIAS2781 or TXNW2781
- */
static int comp_match_tas2781_dev_name(struct device *dev, void *data) {
- struct scodec_dev_name *p = data;
- const char c[][10] = { "TXNW2781", "TIAS2781" };
This you should get from match_data(). See below.
const char *d = dev_name(dev);
- int n = strlen(p->bus);
const char *bus = data;
int n = strlen(bus), i; char tmp[32];
/* check the bus name */
- if (strncmp(d, p->bus, n))
- if (strncmp(d, bus, n)) return 0; /* skip the bus number */ if (isdigit(d[n])) n++;
/* the rest must be exact matching */
snprintf(tmp, sizeof(tmp), "-%s:00", p->hid);
return !strcmp(d + n, tmp);
- for (i = 0; i < ARRAY_SIZE(c); i++) {
/* the rest must be exact matching */snprintf(tmp, sizeof(tmp), "-%s:00", c[i]);if (!strcmp(d + n, tmp))return 1;- }
- return 0;
}
static void cs35l41_generic_fixup(struct hda_codec *cdc, int action, const char *bus, @@ -6824,24 +6835,17 @@ static void cs35l41_generic_fixup(struct hda_codec *cdc, int action, const char }
static void tas2781_generic_fixup(struct hda_codec *cdc, int action,
- const char *bus, const char *hid)
- const char *bus)
{ struct device *dev = hda_codec_dev(cdc); struct alc_spec *spec = cdc->spec;
struct scodec_dev_name *rec; int ret;
switch (action) { case HDA_FIXUP_ACT_PRE_PROBE:
rec = devm_kmalloc(dev, sizeof(*rec), GFP_KERNEL);if (!rec)return;rec->bus = bus;rec->hid = hid;rec->index = 0;spec->comps[0].codec = cdc; component_match_add(dev, &spec->match,
comp_match_tas2781_dev_name, rec);
comp_match_tas2781_dev_name, (void *)bus);@@ -6888,7 +6892,7 @@ static void alc287_fixup_legion_16ithg6_speakers(struct hda_codec *cdc, const st static void tas2781_fixup_i2c(struct hda_codec *cdc, const struct hda_fixup *fix, int action) {
tas2781_generic_fixup(cdc, action, "i2c", "TIAS2781");
tas2781_generic_fixup(cdc, action, "i2c");}
/* for alc295_fixup_hp_top_speakers */ diff --git a/sound/pci/hda/tas2781_hda_i2c.c b/sound/pci/hda/tas2781_hda_i2c.c index fb80280293..8493952305 100644 --- a/sound/pci/hda/tas2781_hda_i2c.c +++ b/sound/pci/hda/tas2781_hda_i2c.c @@ -65,6 +65,16 @@ enum calib_data { CALIB_MAX };
+/* TIAS2781 is the unofficial ACPI id, but widely used in current devices.
- TXNW2781 is the official ACPI id, and will be used in the new devices.
- */
+static const struct acpi_device_id tas2781_acpi_hda_match[] = {
- {"TIAS2781", 0 },
- {"TXNW2781", 1 },
- {}
+}; +MODULE_DEVICE_TABLE(acpi, tas2781_acpi_hda_match);
static int tas2781_get_i2c_res(struct acpi_resource *ares, void *data) { struct tasdevice_priv *tas_priv = data; @@ -644,20 +654,23 @@ static void tas2781_hda_remove(struct device *dev) static int tas2781_hda_i2c_probe(struct i2c_client *clt) { struct tasdevice_priv *tas_priv;
- const char *device_name;
- int ret;
- int ret, i;
- if (strstr(dev_name(&clt->dev), "TIAS2781"))
device_name = "TIAS2781";- else
return -ENODEV;
- /* Check TIAS2781 or TXNW2781 */
- for (i = 0; i < ARRAY_SIZE(tas2781_acpi_hda_match); i++)
Why not aviding for loop as it can be retrieved directly using i2c_get_match_data()?
Update the ACPI/ID table to use pointer to the device_name as data in the table.
Then,
device_name = i2c_get_match_data(client); if (!device_name && strstr(dev_name(&clt->dev), device_name))) return dev_err_probe(tas_priv->dev, -ENODEV, "Device not available\n");
Cheers, Biju
+static const struct acpi_device_id tas2781_acpi_hda_match[] = {
- {"TIAS2781", 0 },
- {"TXNW2781", 1 },
- {}
+};
if (strstr(dev_name(&clt->dev), tas2781_acpi_hda_match[i].id))break;
if (i == ARRAY_SIZE(tas2781_acpi_hda_match))
return dev_err_probe(tas_priv->dev, -ENODEV,"Device not available\n");tas_priv = tasdevice_kzalloc(clt); if (!tas_priv) return -ENOMEM;
tas_priv->irq_info.irq = clt->irq;
- ret = tas2781_read_acpi(tas_priv, device_name);
- ret = tas2781_read_acpi(tas_priv, tas2781_acpi_hda_match[i].id); if (ret) return dev_err_probe(tas_priv->dev, ret, "Platform not supported\n");
@@ -822,12 +835,6 @@ static const struct i2c_device_id tas2781_hda_i2c_id[] = { {} };
-static const struct acpi_device_id tas2781_acpi_hda_match[] = {
- {"TIAS2781", 0 },
- {}
-}; -MODULE_DEVICE_TABLE(acpi, tas2781_acpi_hda_match);
static struct i2c_driver tas2781_hda_i2c_driver = { .driver = { .name = "tas2781-hda", -- 2.34.1