From 35d28ccd185cfbf5748d4d25dd013e41286a4bf2 Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Fri, 2 Jun 2023 15:22:11 -0500 Subject: [PATCH] ASoC: Intel: sof_sdw: increase sdw pin index for each sdw link To support multiple codecs per SoundWire link, we have to assign multiple CPU DAIs to different DAI links sharing the same physical link. This is not possible with the existing code since we assume that only 'Pin2' is used for playback and 'Pin3' used for capture - additional DAIs cannot be handled. This patch enables more CPU DAIs to be used, e.g. "SDW0 Pin2", "SDW0 Pin3", and "SDW0 Pin4" for SDW0-Playback-SimpleJack, SDW0-Capture-SimpleJack, and SDW0-Playback-SmartAmp DAI links on physical link #0. Reviewed-by: Ranjani Sridharan Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20230602202225.249209-15-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/intel/boards/sof_sdw.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c index 73e5a6aed776a..a032628f89253 100644 --- a/sound/soc/intel/boards/sof_sdw.c +++ b/sound/soc/intel/boards/sof_sdw.c @@ -22,6 +22,11 @@ MODULE_PARM_DESC(quirk, "Board-specific quirk override"); #define INC_ID(BE, CPU, LINK) do { (BE)++; (CPU)++; (LINK)++; } while (0) +#define SDW_MAX_LINKS 4 + +/* To store SDW Pin index for each SoundWire link */ +static unsigned int sdw_pin_index[SDW_MAX_LINKS]; + static void log_quirks(struct device *dev) { if (SOF_JACK_JDSRC(sof_sdw_quirk)) @@ -1247,10 +1252,10 @@ static int create_sdw_dailink(struct snd_soc_card *card, int cpu_dai_num, cpu_dai_index; unsigned int group_id; int codec_idx = 0; - int i = 0, j = 0; int codec_index; int codec_num; int stream; + int i = 0; int ret; int k; @@ -1336,7 +1341,7 @@ static int create_sdw_dailink(struct snd_soc_card *card, for (k = 0; k < cpu_dai_num; k++) { cpu_name = devm_kasprintf(dev, GFP_KERNEL, "SDW%d Pin%d", cpu_dai_id[k], - j + SDW_INTEL_BIDIR_PDI_BASE); + sdw_pin_index[cpu_dai_id[k]]++); if (!cpu_name) return -ENOMEM; @@ -1385,7 +1390,6 @@ static int create_sdw_dailink(struct snd_soc_card *card, } *cpu_id += cpu_dai_num; - j++; } return 0; @@ -1538,6 +1542,9 @@ static int sof_card_dai_links_create(struct device *dev, for (i = 0; i < SDW_MAX_GROUPS; i++) group_generated[i] = false; + for (i = 0; i < SDW_MAX_LINKS; i++) + sdw_pin_index[i] = SDW_INTEL_BIDIR_PDI_BASE; + for (; adr_link->num_adr; adr_link++) { /* * If there are two or more different devices on the same sdw link, we have to -- 2.30.2