diff options
author | Jyri Sarha <jsarha@ti.com> | 2014-03-24 12:15:25 +0200 |
---|---|---|
committer | Mark Brown <broonie@linaro.org> | 2014-04-23 13:14:27 +0100 |
commit | b3ca11ff59bc5842b01f13421a17e6d9a8936784 (patch) | |
tree | 5117417d0de1b3ef141ac92abb77c501a828ba09 /sound/soc/generic/simple-card.c | |
parent | 389cb8348cf5ac4a702c71bf13673c4c8bf01e34 (diff) | |
download | linux-b3ca11ff59bc5842b01f13421a17e6d9a8936784.tar.bz2 |
ASoC: simple-card: Move dai-link level properties away from dai subnodes
The properties like format, bitclock-master, frame-master,
bitclock-inversion, and frame-inversion should be common to the dais
connected with a dai-link. For bitclock-master and frame-master
properties to be unambiguous they need to indicate the mastering dai
node with a phandle.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/generic/simple-card.c')
-rw-r--r-- | sound/soc/generic/simple-card.c | 239 |
1 files changed, 140 insertions, 99 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 835fd0258243..3f2e5807d7eb 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -88,7 +88,6 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) static int asoc_simple_card_sub_parse_of(struct device_node *np, - unsigned int daifmt, struct asoc_simple_dai *dai, const struct device_node **p_node, const char **name) @@ -117,14 +116,6 @@ asoc_simple_card_sub_parse_of(struct device_node *np, return ret; /* - * bitclock-inversion, frame-inversion - * bitclock-master, frame-master - * and specific "format" if it has - */ - dai->fmt = snd_soc_of_parse_daifmt(np, NULL, NULL, NULL); - dai->fmt |= daifmt; - - /* * dai->sysclk come from * "clocks = <&xxx>" (if system has common clock) * or "system-clock-frequency = <xxx>" @@ -151,37 +142,135 @@ asoc_simple_card_sub_parse_of(struct device_node *np, return 0; } -static int simple_card_cpu_codec_of(struct device_node *node, - int daifmt, - struct snd_soc_dai_link *dai_link, - struct simple_dai_props *dai_props) +static int simple_card_dai_link_of(struct device_node *node, + struct device *dev, + struct snd_soc_dai_link *dai_link, + struct simple_dai_props *dai_props) { - struct device_node *np; + struct device_node *np = NULL; + struct device_node *bitclkmaster = NULL; + struct device_node *framemaster = NULL; + unsigned int daifmt; + char *name; + char prop[128]; + char *prefix = ""; int ret; - /* CPU sub-node */ - ret = -EINVAL; - np = of_get_child_by_name(node, "simple-audio-card,cpu"); - if (np) { - ret = asoc_simple_card_sub_parse_of(np, daifmt, - &dai_props->cpu_dai, - &dai_link->cpu_of_node, - &dai_link->cpu_dai_name); - of_node_put(np); + if (!strcmp("sound", node->name)) + prefix = "simple-audio-card,"; + + daifmt = snd_soc_of_parse_daifmt(node, prefix, + &bitclkmaster, &framemaster); + daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK; + + snprintf(prop, sizeof(prop), "%scpu", prefix); + np = of_get_child_by_name(node, prop); + if (!np) { + ret = -EINVAL; + dev_err(dev, "%s: Can't find simple-audio-card,cpu DT node\n", + __func__); + goto dai_link_of_err; } + + ret = asoc_simple_card_sub_parse_of(np, &dai_props->cpu_dai, + &dai_link->cpu_of_node, + &dai_link->cpu_dai_name); if (ret < 0) - return ret; + goto dai_link_of_err; + + dai_props->cpu_dai.fmt = daifmt; + switch (((np == bitclkmaster)<<4)|(np == framemaster)) { + case 0x11: + dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBS_CFS; + break; + case 0x10: + dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBS_CFM; + break; + case 0x01: + dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBM_CFS; + break; + default: + dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBM_CFM; + break; + } - /* CODEC sub-node */ - ret = -EINVAL; - np = of_get_child_by_name(node, "simple-audio-card,codec"); - if (np) { - ret = asoc_simple_card_sub_parse_of(np, daifmt, - &dai_props->codec_dai, - &dai_link->codec_of_node, - &dai_link->codec_dai_name); - of_node_put(np); + of_node_put(np); + snprintf(prop, sizeof(prop), "%scodec", prefix); + np = of_get_child_by_name(node, prop); + if (!np) { + ret = -EINVAL; + dev_err(dev, "%s: Can't find simple-audio-card,codec DT node\n", + __func__); + goto dai_link_of_err; + } + + ret = asoc_simple_card_sub_parse_of(np, &dai_props->codec_dai, + &dai_link->codec_of_node, + &dai_link->codec_dai_name); + if (ret < 0) + goto dai_link_of_err; + + if (strlen(prefix) && !bitclkmaster && !framemaster) { + /* No dai-link level and master setting was not found from + sound node level, revert back to legacy DT parsing and + take the settings from codec node. */ + dev_dbg(dev, "%s: Revert to legacy daifmt parsing\n", + __func__); + dai_props->cpu_dai.fmt = dai_props->codec_dai.fmt = + snd_soc_of_parse_daifmt(np, NULL, NULL, NULL) | + (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK); + } else { + dai_props->codec_dai.fmt = daifmt; + switch (((np == bitclkmaster)<<4)|(np == framemaster)) { + case 0x11: + dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBM_CFM; + break; + case 0x10: + dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBM_CFS; + break; + case 0x01: + dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBS_CFM; + break; + default: + dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBS_CFS; + break; + } + } + + if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { + ret = -EINVAL; + goto dai_link_of_err; } + + /* simple-card assumes platform == cpu */ + dai_link->platform_of_node = dai_link->cpu_of_node; + + /* Link name is created from CPU/CODEC dai name */ + name = devm_kzalloc(dev, + strlen(dai_link->cpu_dai_name) + + strlen(dai_link->codec_dai_name) + 2, + GFP_KERNEL); + sprintf(name, "%s-%s", dai_link->cpu_dai_name, + dai_link->codec_dai_name); + dai_link->name = dai_link->stream_name = name; + + dev_dbg(dev, "\tname : %s\n", dai_link->stream_name); + dev_dbg(dev, "\tcpu : %s / %04x / %d\n", + dai_link->cpu_dai_name, + dai_props->cpu_dai.fmt, + dai_props->cpu_dai.sysclk); + dev_dbg(dev, "\tcodec : %s / %04x / %d\n", + dai_link->codec_dai_name, + dai_props->codec_dai.fmt, + dai_props->codec_dai.sysclk); + +dai_link_of_err: + if (np) + of_node_put(np); + if (bitclkmaster) + of_node_put(bitclkmaster); + if (framemaster) + of_node_put(framemaster); return ret; } @@ -192,19 +281,11 @@ static int asoc_simple_card_parse_of(struct device_node *node, { struct snd_soc_dai_link *dai_link = priv->snd_card.dai_link; struct simple_dai_props *dai_props = priv->dai_props; - struct device_node *np; - char *name; - unsigned int daifmt; int ret; /* parsing the card name from DT */ snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name"); - /* get CPU/CODEC common format via simple-audio-card,format */ - daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,", NULL, - NULL) & - (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK); - /* off-codec widgets */ if (of_property_read_bool(node, "simple-audio-card,widgets")) { ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card, @@ -221,71 +302,31 @@ static int asoc_simple_card_parse_of(struct device_node *node, return ret; } - /* loop on the DAI links */ - np = NULL; - for (;;) { - if (multi) { - np = of_get_next_child(node, np); - if (!np) - break; + dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ? + priv->snd_card.name : ""); + + if (multi) { + struct device_node *np = NULL; + int i; + for (i = 0; (np = of_get_next_child(node, np)); i++) { + dev_dbg(dev, "\tlink %d:\n", i); + ret = simple_card_dai_link_of(np, dev, dai_link + i, + dai_props + i); + if (ret < 0) { + of_node_put(np); + return ret; + } } - - ret = simple_card_cpu_codec_of(multi ? np : node, - daifmt, dai_link, dai_props); + } else { + ret = simple_card_dai_link_of(node, dev, dai_link, dai_props); if (ret < 0) - goto err; - - /* - * overwrite cpu_dai->fmt as its DAIFMT_MASTER bit is based on CODEC - * while the other bits should be identical unless buggy SW/HW design. - */ - dai_props->cpu_dai.fmt = dai_props->codec_dai.fmt; - - if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) { - ret = -EINVAL; - goto err; - } - - /* simple-card assumes platform == cpu */ - dai_link->platform_of_node = dai_link->cpu_of_node; - - name = devm_kzalloc(dev, - strlen(dai_link->cpu_dai_name) + - strlen(dai_link->codec_dai_name) + 2, - GFP_KERNEL); - sprintf(name, "%s-%s", dai_link->cpu_dai_name, - dai_link->codec_dai_name); - dai_link->name = dai_link->stream_name = name; - - if (!multi) - break; - - dai_link++; - dai_props++; + return ret; } - /* card name is created from CPU/CODEC dai name */ - dai_link = priv->snd_card.dai_link; if (!priv->snd_card.name) - priv->snd_card.name = dai_link->name; - - dev_dbg(dev, "card-name : %s\n", priv->snd_card.name); - dev_dbg(dev, "platform : %04x\n", daifmt); - dai_props = priv->dai_props; - dev_dbg(dev, "cpu : %s / %04x / %d\n", - dai_link->cpu_dai_name, - dai_props->cpu_dai.fmt, - dai_props->cpu_dai.sysclk); - dev_dbg(dev, "codec : %s / %04x / %d\n", - dai_link->codec_dai_name, - dai_props->codec_dai.fmt, - dai_props->codec_dai.sysclk); + priv->snd_card.name = priv->snd_card.dai_link->name; return 0; - -err: - of_node_put(np); - return ret; } /* update the reference count of the devices nodes at end of probe */ |