brcm2708: update to latest patches from RPi foundation

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0798-adds-LED-OFF-feature-to-HiFiBerry-DAC-ADC-PRO-sound-.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0798-adds-LED-OFF-feature-to-HiFiBerry-DAC-ADC-PRO-sound-.patch b/target/linux/brcm2708/patches-4.19/950-0798-adds-LED-OFF-feature-to-HiFiBerry-DAC-ADC-PRO-sound-.patch
new file mode 100644 (file)
index 0000000..233e368
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0798-adds-LED-OFF-feature-to-HiFiBerry-DAC-ADC-PRO-sound-.patch
@@ -0,0 +1,89 @@
+From c23190019110e3314041f2184552a8343de55117 Mon Sep 17 00:00:00 2001
+From: j-schambacher <joerg@i2audio.com>
+Date: Mon, 27 Jan 2020 17:45:51 +0100
+Subject: [PATCH] adds LED OFF feature to HiFiBerry DAC+ADC PRO sound
+ card
+
+This adds a DT overlay parameter 'leds_off' which allows
+to switch off the onboard activity LEDs at all times
+which has been requested by some users.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+---
+ arch/arm/boot/dts/overlays/README                 |  2 ++
+ .../overlays/hifiberry-dacplusadcpro-overlay.dts  |  1 +
+ sound/soc/bcm/hifiberry_dacplusadcpro.c           | 15 +++++++++++++--
+ 3 files changed, 16 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -948,6 +948,8 @@ Params: 24db_digital_gain       Allow ga
+                                 that does not result in clipping/distortion!)
+         slave                   Force DAC+ADC Pro into slave mode, using Pi as
+                                 master for bit clock and frame clock.
++        leds_off                If set to 'true' the onboard indicator LEDs
++                                are switched off at all times.
+ 
+ 
+ Name:   hifiberry-dacplusdsp
+--- a/arch/arm/boot/dts/overlays/hifiberry-dacplusadcpro-overlay.dts
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusadcpro-overlay.dts
+@@ -60,5 +60,6 @@
+               24db_digital_gain =
+                       <&hifiberry_dacplusadcpro>,"hifiberry-dacplusadcpro,24db_digital_gain?";
+               slave = <&hifiberry_dacplusadcpro>,"hifiberry-dacplusadcpro,slave?";
++              leds_off = <&hifiberry_dacplusadcpro>,"hifiberry-dacplusadcpro,leds_off?";
+       };
+ };
+--- a/sound/soc/bcm/hifiberry_dacplusadcpro.c
++++ b/sound/soc/bcm/hifiberry_dacplusadcpro.c
+@@ -54,6 +54,7 @@ struct pcm512x_priv {
+ static bool slave;
+ static bool snd_rpi_hifiberry_is_dacpro;
+ static bool digital_gain_0db_limit = true;
++static bool leds_off;
+ 
+ static const unsigned int pcm186x_adc_input_channel_sel_value[] = {
+       0x00, 0x01, 0x02, 0x03, 0x10
+@@ -321,7 +322,10 @@ static int snd_rpi_hifiberry_dacplusadcp
+ 
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(dac, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+-      snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++      if (leds_off)
++              snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++      else
++              snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+ 
+       ret = pcm1863_add_controls(adc);
+       if (ret < 0)
+@@ -331,7 +335,10 @@ static int snd_rpi_hifiberry_dacplusadcp
+       /* set GPIO2 to output, GPIO3 input */
+       snd_soc_component_write(adc, PCM186X_GPIO3_2_CTRL, 0x00);
+       snd_soc_component_write(adc, PCM186X_GPIO3_2_DIR_CTRL, 0x04);
+-      snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40);
++      if (leds_off)
++              snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00);
++      else
++              snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40);
+ 
+       if (digital_gain_0db_limit) {
+               int ret;
+@@ -417,6 +424,8 @@ static int snd_rpi_hifiberry_dacplusadcp
+       struct snd_soc_component *dac = rtd->codec_dais[0]->component;
+       struct snd_soc_component *adc = rtd->codec_dais[1]->component;
+ 
++      if (leds_off)
++              return 0;
+       /* switch on respective LED */
+       if (!substream->stream)
+               snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+@@ -508,6 +517,8 @@ static int snd_rpi_hifiberry_dacplusadcp
+               pdev->dev.of_node, "hifiberry-dacplusadcpro,24db_digital_gain");
+       slave = of_property_read_bool(pdev->dev.of_node,
+                                       "hifiberry-dacplusadcpro,slave");
++      leds_off = of_property_read_bool(pdev->dev.of_node,
++                                      "hifiberry-dacplusadcpro,leds_off");
+       ret = snd_soc_register_card(&snd_rpi_hifiberry_dacplusadcpro);
+       if (ret && ret != -EPROBE_DEFER)
+               dev_err(&pdev->dev,