diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0431-Added-HiFiBerry-Digi-Pro-driver.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0431-Added-HiFiBerry-Digi-Pro-driver.patch | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0431-Added-HiFiBerry-Digi-Pro-driver.patch b/target/linux/brcm2708/patches-4.4/0431-Added-HiFiBerry-Digi-Pro-driver.patch new file mode 100644 index 0000000000..c718209422 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0431-Added-HiFiBerry-Digi-Pro-driver.patch @@ -0,0 +1,187 @@ +From e528c5d3f8cffca37abf9c69f7178f0221974225 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); |