Simplify code to return when no links are enabled. No functional change, just code cleanup before updates.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com --- sound/soc/sof/intel/hda.c | 139 +++++++++++++++++++------------------- 1 file changed, 71 insertions(+), 68 deletions(-)
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 4d0fe706ebc1..8ddc1b0ca3c9 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -1653,92 +1653,95 @@ static struct snd_soc_acpi_mach *hda_sdw_machine_select(struct snd_sof_dev *sdev hdev = pdata->hw_pdata; link_mask = hdev->info.link_mask;
+ if (!link_mask) { + dev_info(sdev->dev, "SoundWire links not enabled\n"); + return NULL; + } + /* * Select SoundWire machine driver if needed using the * alternate tables. This case deals with SoundWire-only * machines, for mixed cases with I2C/I2S the detection relies * on the HID list. */ - if (link_mask) { - for (mach = pdata->desc->alt_machines; - mach && mach->link_mask; mach++) { - /* - * On some platforms such as Up Extreme all links - * are enabled but only one link can be used by - * external codec. Instead of exact match of two masks, - * first check whether link_mask of mach is subset of - * link_mask supported by hw and then go on searching - * link_adr - */ - if (~link_mask & mach->link_mask) - continue; + for (mach = pdata->desc->alt_machines; + mach && mach->link_mask; mach++) { + /* + * On some platforms such as Up Extreme all links + * are enabled but only one link can be used by + * external codec. Instead of exact match of two masks, + * first check whether link_mask of mach is subset of + * link_mask supported by hw and then go on searching + * link_adr + */ + if (~link_mask & mach->link_mask) + continue;
- /* No need to match adr if there is no links defined */ - if (!mach->links) - break; + /* No need to match adr if there is no links defined */ + if (!mach->links) + break;
- link = mach->links; - for (i = 0; i < hdev->info.count && link->num_adr; - i++, link++) { - /* - * Try next machine if any expected Slaves - * are not found on this link. - */ - if (!snd_soc_acpi_sdw_link_slaves_found(sdev->dev, link, - hdev->sdw->ids, - hdev->sdw->num_slaves)) - break; - } - /* Found if all Slaves are checked */ - if (i == hdev->info.count || !link->num_adr) + link = mach->links; + for (i = 0; i < hdev->info.count && link->num_adr; + i++, link++) { + /* + * Try next machine if any expected Slaves + * are not found on this link. + */ + if (!snd_soc_acpi_sdw_link_slaves_found(sdev->dev, link, + hdev->sdw->ids, + hdev->sdw->num_slaves)) break; } - if (mach && mach->link_mask) { - int dmic_num = 0; - bool tplg_fixup; - const char *tplg_filename; - - mach->mach_params.links = mach->links; - mach->mach_params.link_mask = mach->link_mask; - mach->mach_params.platform = dev_name(sdev->dev); - - if (pdata->tplg_filename) { - tplg_fixup = false; - } else { - tplg_fixup = true; - tplg_filename = mach->sof_tplg_filename; - } + /* Found if all Slaves are checked */ + if (i == hdev->info.count || !link->num_adr) + break; + } + if (mach && mach->link_mask) { + int dmic_num = 0; + bool tplg_fixup; + const char *tplg_filename;
- /* - * DMICs use up to 4 pins and are typically pin-muxed with SoundWire - * link 2 and 3, or link 1 and 2, thus we only try to enable dmics - * if all conditions are true: - * a) 2 or fewer links are used by SoundWire - * b) the NHLT table reports the presence of microphones - */ - if (hweight_long(mach->link_mask) <= 2) { - int ret; + mach->mach_params.links = mach->links; + mach->mach_params.link_mask = mach->link_mask; + mach->mach_params.platform = dev_name(sdev->dev);
- ret = dmic_detect_topology_fixup(sdev, &tplg_filename, "", - &dmic_num, tplg_fixup); - if (ret < 0) - return NULL; - } - if (tplg_fixup) - pdata->tplg_filename = tplg_filename; - mach->mach_params.dmic_num = dmic_num; + if (pdata->tplg_filename) { + tplg_fixup = false; + } else { + tplg_fixup = true; + tplg_filename = mach->sof_tplg_filename; + }
- dev_dbg(sdev->dev, - "SoundWire machine driver %s topology %s\n", - mach->drv_name, - pdata->tplg_filename); + /* + * DMICs use up to 4 pins and are typically pin-muxed with SoundWire + * link 2 and 3, or link 1 and 2, thus we only try to enable dmics + * if all conditions are true: + * a) 2 or fewer links are used by SoundWire + * b) the NHLT table reports the presence of microphones + */ + if (hweight_long(mach->link_mask) <= 2) { + int ret;
- return mach; + ret = dmic_detect_topology_fixup(sdev, &tplg_filename, "", + &dmic_num, tplg_fixup); + if (ret < 0) + return NULL; } + if (tplg_fixup) + pdata->tplg_filename = tplg_filename; + mach->mach_params.dmic_num = dmic_num; + + dev_dbg(sdev->dev, + "SoundWire machine driver %s topology %s\n", + mach->drv_name, + pdata->tplg_filename);
- dev_info(sdev->dev, "No SoundWire machine driver found\n"); + return mach; }
+ dev_info(sdev->dev, "No SoundWire machine driver found\n"); + return NULL; } #else