openwrt/target/linux/bcm27xx/patches-4.19/950-0440-Fixed-48k-timing-issue.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

96 lines
3.0 KiB
Diff

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";
}