From 1633281b79fd276f1c7c2fb37c3b97da74e42ae5 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 23 Nov 2011 12:42:04 -0700 Subject: ASoC: Implement fully_routed card property A card is fully routed if the DAPM route table describes all connections on the board. When a card is fully routed, some operations can be automated by the ASoC core. The first, and currently only, such operation is described below, and implemented by this patch. Codecs often have a large number of external pins, and not all of these pins will be connected on all board designs. Some machine drivers therefore call snd_soc_dapm_nc_pin() for all the unused pins, in order to tell the ASoC core never to activate them. However, when a card is fully routed, the information needed to derive the set of unused pins is present in card->dapm_routes. In this case, have the ASoC core automatically call snd_soc_dapm_nc_pin() for each unused codec pin. This has been tested with soc/tegra/tegra_wm8903.c and soc/tegra/trimslice.c. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/sound/soc-dapm.h') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 17a4c17f19f5..0c159a7d211e 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -380,6 +380,7 @@ int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin); int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin); +void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec); /* Mostly internal - should not normally be used */ void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason); -- cgit v1.2.3 From 1ab97c8cad98de016cb36a870e118feaf0a0caaf Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 27 Nov 2011 16:21:51 +0000 Subject: ASoC: Add signal generator widget type A signal generator behaves as an input would but is not considered for any of the special behaviour associated with external input pins. This is especially useful when automatically working out not connected widgets. Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- include/sound/soc-dapm.h | 4 ++++ sound/soc/soc-dapm.c | 7 +++++++ 2 files changed, 11 insertions(+) (limited to 'include/sound/soc-dapm.h') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 0c159a7d211e..d26a9b784772 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -43,6 +43,9 @@ .num_kcontrols = 0} /* platform domain */ +#define SND_SOC_DAPM_SIGGEN(wname) \ +{ .id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \ + .num_kcontrols = 0, .reg = SND_SOC_NOPM } #define SND_SOC_DAPM_INPUT(wname) \ { .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \ .num_kcontrols = 0, .reg = SND_SOC_NOPM } @@ -410,6 +413,7 @@ enum snd_soc_dapm_type { snd_soc_dapm_supply, /* power/clock supply */ snd_soc_dapm_aif_in, /* audio interface input */ snd_soc_dapm_aif_out, /* audio interface output */ + snd_soc_dapm_siggen, /* signal generator */ }; /* diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index da5c1ae7cc30..6bb327e431a5 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -339,6 +339,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, case snd_soc_dapm_output: case snd_soc_dapm_adc: case snd_soc_dapm_input: + case snd_soc_dapm_siggen: case snd_soc_dapm_dac: case snd_soc_dapm_micbias: case snd_soc_dapm_vmid: @@ -772,6 +773,11 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) return widget->inputs; } + /* signal generator */ + if (widget->id == snd_soc_dapm_siggen) { + widget->inputs = snd_soc_dapm_suspend_check(widget); + return widget->inputs; + } } list_for_each_entry(path, &widget->sources, list_sink) { @@ -1982,6 +1988,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, case snd_soc_dapm_out_drv: case snd_soc_dapm_input: case snd_soc_dapm_output: + case snd_soc_dapm_siggen: case snd_soc_dapm_micbias: case snd_soc_dapm_vmid: case snd_soc_dapm_pre: -- cgit v1.2.3