+++ /dev/null
-From ca5dc61992ac0451a3d778fd760fbcd565271a66 Mon Sep 17 00:00:00 2001
-From: "Daniel Matuschek (HiFiBerry)" <daniel@hifiberry.com>
-Date: Tue, 26 Jul 2016 19:16:25 +0200
-Subject: [PATCH] Added HiFiBerry Digi+ Pro driver
-
-Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>
----
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 8 +++-
- .../dts/overlays/hifiberry-digi-pro-overlay.dts | 41 +++++++++++++++++
- sound/soc/bcm/hifiberry_digi.c | 51 ++++++++++++++++++++++
- 4 files changed, 100 insertions(+), 1 deletion(-)
- create mode 100644 arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -31,6 +31,7 @@ dtbo-$(RPI_DT_OVERLAYS) += hifiberry-amp
- dtbo-$(RPI_DT_OVERLAYS) += hifiberry-dac.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += hifiberry-dacplus.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += hifiberry-digi.dtbo
-+dtbo-$(RPI_DT_OVERLAYS) += hifiberry-digi-pro.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += hy28a.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += hy28b.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += i2c-gpio.dtbo
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -377,11 +377,17 @@ Params: 24db_digital_gain Allow ga
-
-
- Name: hifiberry-digi
--Info: Configures the HifiBerry Digi audio card
-+Info: Configures the HifiBerry Digi and Digi+ audio card
- Load: dtoverlay=hifiberry-digi
- Params: <None>
-
-
-+Name: hifiberry-digi-pro
-+Info: Configures the HifiBerry Digi+ Pro audio card
-+Load: dtoverlay=hifiberry-digi-pro
-+Params: <None>
-+
-+
- Name: hy28a
- Info: HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics
- Default values match Texy's display shield
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts
-@@ -0,0 +1,41 @@
-+// Definitions for HiFiBerry Digi Pro
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+ compatible = "brcm,bcm2708";
-+
-+ fragment@0 {
-+ target = <&i2s>;
-+ __overlay__ {
-+ status = "okay";
-+ };
-+ };
-+
-+ fragment@1 {
-+ target = <&i2c1>;
-+ __overlay__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ status = "okay";
-+
-+ wm8804@3b {
-+ #sound-dai-cells = <0>;
-+ compatible = "wlf,wm8804";
-+ reg = <0x3b>;
-+ status = "okay";
-+ };
-+ };
-+ };
-+
-+ fragment@2 {
-+ target = <&sound>;
-+ __overlay__ {
-+ compatible = "hifiberry,hifiberry-digi";
-+ i2s-controller = <&i2s>;
-+ status = "okay";
-+ clock44-gpio = <&gpio 5 0>;
-+ clock48-gpio = <&gpio 6 0>;
-+ };
-+ };
-+};
---- a/sound/soc/bcm/hifiberry_digi.c
-+++ b/sound/soc/bcm/hifiberry_digi.c
-@@ -23,6 +23,7 @@
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/jack.h>
-+#include <linux/gpio/consumer.h>
-
- #include "../codecs/wm8804.h"
-
-@@ -30,9 +31,34 @@ static short int auto_shutdown_output =
- module_param(auto_shutdown_output, short, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
- MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped");
-
-+#define CLK_44EN_RATE 22579200UL
-+#define CLK_48EN_RATE 24576000UL
-+
-+static bool snd_rpi_hifiberry_is_digipro;
-+static struct gpio_desc *snd_rpi_hifiberry_clk44gpio;
-+static struct gpio_desc *snd_rpi_hifiberry_clk48gpio;
-
- static int samplerate=44100;
-
-+static uint32_t snd_rpi_hifiberry_digi_enable_clock(int sample_rate)
-+{
-+ switch (sample_rate) {
-+ case 11025:
-+ case 22050:
-+ case 44100:
-+ case 88200:
-+ case 176400:
-+ gpiod_set_value_cansleep(snd_rpi_hifiberry_clk44gpio, 1);
-+ gpiod_set_value_cansleep(snd_rpi_hifiberry_clk48gpio, 0);
-+ return CLK_44EN_RATE;
-+ default:
-+ gpiod_set_value_cansleep(snd_rpi_hifiberry_clk48gpio, 1);
-+ gpiod_set_value_cansleep(snd_rpi_hifiberry_clk44gpio, 0);
-+ return CLK_48EN_RATE;
-+ }
-+}
-+
-+
- static int snd_rpi_hifiberry_digi_init(struct snd_soc_pcm_runtime *rtd)
- {
- struct snd_soc_codec *codec = rtd->codec;
-@@ -40,6 +66,14 @@ static int snd_rpi_hifiberry_digi_init(s
- /* enable TX output */
- snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
-
-+ /* Initialize Digi+ Pro hardware */
-+ if (snd_rpi_hifiberry_is_digipro) {
-+ struct snd_soc_dai_link *dai = rtd->dai_link;
-+
-+ dai->name = "HiFiBerry Digi+ Pro";
-+ dai->stream_name = "HiFiBerry Digi+ Pro HiFi";
-+ }
-+
- return 0;
- }
-
-@@ -87,6 +121,9 @@ static int snd_rpi_hifiberry_digi_hw_par
- mclk_freq=samplerate*128;
- mclk_div=WM8804_MCLKDIV_128FS;
- }
-+
-+ if (snd_rpi_hifiberry_is_digipro)
-+ sysclk = snd_rpi_hifiberry_digi_enable_clock(samplerate);
-
- switch (samplerate) {
- case 32000:
-@@ -121,6 +158,7 @@ static int snd_rpi_hifiberry_digi_hw_par
-
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
- sysclk, SND_SOC_CLOCK_OUT);
-+
- if (ret < 0) {
- dev_err(codec->dev,
- "Failed to set WM8804 SYSCLK: %d\n", ret);
-@@ -187,6 +225,19 @@ static int snd_rpi_hifiberry_digi_probe(
- dai->platform_name = NULL;
- dai->platform_of_node = i2s_node;
- }
-+
-+ snd_rpi_hifiberry_is_digipro = 1;
-+
-+ snd_rpi_hifiberry_clk44gpio =
-+ devm_gpiod_get(&pdev->dev, "clock44", GPIOD_OUT_LOW);
-+ if (IS_ERR(snd_rpi_hifiberry_clk44gpio))
-+ snd_rpi_hifiberry_is_digipro = 0;
-+
-+ snd_rpi_hifiberry_clk48gpio =
-+ devm_gpiod_get(&pdev->dev, "clock48", GPIOD_OUT_LOW);
-+ if (IS_ERR(snd_rpi_hifiberry_clk48gpio))
-+ snd_rpi_hifiberry_is_digipro = 0;
-+
- }
-
- ret = snd_soc_register_card(&snd_rpi_hifiberry_digi);
projects / openwrt / staging / yousong.git / blobdiff