diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0442-Fixed-48k-timing-issue.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0442-Fixed-48k-timing-issue.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0442-Fixed-48k-timing-issue.patch b/target/linux/brcm2708/patches-4.19/950-0442-Fixed-48k-timing-issue.patch new file mode 100644 index 0000000000..541e18ac06 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0442-Fixed-48k-timing-issue.patch @@ -0,0 +1,95 @@ +From 539e2eef7dbfb58ab028a5530430611973dd4c84 Mon Sep 17 00:00:00 2001 +From: IQaudIO <gordon@iqaudio.com> +Date: Thu, 6 Jun 2019 10:20:55 +0100 +Subject: [PATCH] Fixed 48k timing issue + +--- + sound/soc/bcm/iqaudio-codec.c | 33 ++++++++++++++++++++++++++++----- + 1 file changed, 28 insertions(+), 5 deletions(-) + +--- a/sound/soc/bcm/iqaudio-codec.c ++++ b/sound/soc/bcm/iqaudio-codec.c +@@ -45,11 +45,15 @@ static int snd_rpi_iqaudio_pll_control(s + 0); + if (ret) + dev_err(card->dev, "Failed to bypass PLL: %d\n", ret); ++ /* Allow PLL time to bypass */ ++ msleep(100); + } else if (SND_SOC_DAPM_EVENT_ON(event)) { + ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_PLL, 0, + pll_out); + if (ret) + dev_err(card->dev, "Failed to enable PLL: %d\n", ret); ++ /* Allow PLL time to lock */ ++ msleep(100); + } + + return ret; +@@ -71,6 +75,13 @@ static int snd_rpi_iqaudio_post_dapm_eve + return 0; + } + ++static const struct snd_kcontrol_new dapm_controls[] = { ++ SOC_DAPM_PIN_SWITCH("HP Jack"), ++ SOC_DAPM_PIN_SWITCH("MIC Jack"), ++ SOC_DAPM_PIN_SWITCH("Onboard MIC"), ++ SOC_DAPM_PIN_SWITCH("AUX Jack"), ++}; ++ + static const struct snd_soc_dapm_widget dapm_widgets[] = { + SND_SOC_DAPM_HP("HP Jack", NULL), + SND_SOC_DAPM_MIC("MIC Jack", NULL), +@@ -87,14 +98,14 @@ static const struct snd_soc_dapm_route a + {"HP Jack", NULL, "HPR"}, + {"HP Jack", NULL, "PLL Control"}, + +- {"AUX Jack", NULL, "AUXR"}, +- {"AUX Jack", NULL, "AUXL"}, ++ {"AUXR", NULL, "AUX Jack"}, ++ {"AUXL", NULL, "AUX Jack"}, + {"AUX Jack", NULL, "PLL Control"}, + + /* Assume Mic1 is linked to Headset and Mic2 to on-board mic */ +- {"MIC Jack", NULL, "MIC1"}, ++ {"MIC1", NULL, "MIC Jack"}, + {"MIC Jack", NULL, "PLL Control"}, +- {"Onboard MIC", NULL, "MIC2"}, ++ {"MIC2", NULL, "Onboard MIC"}, + {"Onboard MIC", NULL, "PLL Control"}, + }; + +@@ -106,6 +117,16 @@ static int snd_rpi_iqaudio_codec_init(st + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int ret; + ++ /* ++ * Disable AUX Jack Pin by default to prevent PLL being enabled at ++ * startup. This avoids holding the PLL to a fixed SR config for ++ * subsequent streams. ++ * ++ * This pin can still be enabled later, as required by user-space. ++ */ ++ snd_soc_dapm_disable_pin(&rtd->card->dapm, "AUX Jack"); ++ snd_soc_dapm_sync(&rtd->card->dapm); ++ + /* Set bclk ratio to align with codec's BCLK rate */ + ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64); + if (ret) { +@@ -168,6 +189,8 @@ static struct snd_soc_card snd_rpi_iqaud + .owner = THIS_MODULE, + .dai_link = snd_rpi_iqaudio_codec_dai, + .num_links = ARRAY_SIZE(snd_rpi_iqaudio_codec_dai), ++ .controls = dapm_controls, ++ .num_controls = ARRAY_SIZE(dapm_controls), + .dapm_widgets = dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), + .dapm_routes = audio_map, +@@ -204,7 +227,7 @@ static int snd_rpi_iqaudio_codec_probe(s + + if (of_property_read_string(pdev->dev.of_node, + "dai_stream_name", &dai->stream_name)) +- dai->stream_name = "IQaudIO CODEC HiFi v1.1"; ++ dai->stream_name = "IQaudIO CODEC HiFi v1.2"; + + } + |