From: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx> [ Upstream commit 135096ebfab656823d0037102a00776f3914fee3 ] Current method to set Channel Index when the system is missing _DSD assumes that the channels alternate, which is not guaranteed. Instead use the same methodology as the main driver does when _DSD exists. Fixes: 8c4c216db8fb ("ALSA: hda: cs35l41: Add config table to support many laptops without _DSD") Signed-off-by: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20240126164005.367021-2-sbinding@xxxxxxxxxxxxxxxxxxxxx Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- sound/pci/hda/cs35l41_hda_property.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c index e436d4dab317f..86ddaff915de1 100644 --- a/sound/pci/hda/cs35l41_hda_property.c +++ b/sound/pci/hda/cs35l41_hda_property.c @@ -210,6 +210,7 @@ static int generic_dsd_config(struct cs35l41_hda *cs35l41, struct device *physde struct spi_device *spi; bool dsd_found; int ret; + int i; for (cfg = cs35l41_config_table; cfg->ssid; cfg++) { if (!strcasecmp(cfg->ssid, cs35l41->acpi_subsystem_id)) @@ -295,16 +296,6 @@ static int generic_dsd_config(struct cs35l41_hda *cs35l41, struct device *physde cs35l41->index = id == 0x40 ? 0 : 1; } - if (cfg->num_amps == 3) - /* 3 amps means a center channel, so no duplicate channels */ - cs35l41->channel_index = 0; - else - /* - * if 4 amps, there are duplicate channels, so they need different indexes - * if 2 amps, no duplicate channels, channel_index would be 0 - */ - cs35l41->channel_index = cs35l41->index / 2; - cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(cs35l41->dacpi), "reset", cs35l41->index, GPIOD_OUT_LOW, "cs35l41-reset"); @@ -312,6 +303,11 @@ static int generic_dsd_config(struct cs35l41_hda *cs35l41, struct device *physde hw_cfg->spk_pos = cfg->channel[cs35l41->index]; + cs35l41->channel_index = 0; + for (i = 0; i < cs35l41->index; i++) + if (cfg->channel[i] == hw_cfg->spk_pos) + cs35l41->channel_index++; + if (cfg->boost_type == INTERNAL) { hw_cfg->bst_type = CS35L41_INT_BOOST; hw_cfg->bst_ind = cfg->boost_ind_nanohenry; -- 2.43.0